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1. CM 8 24 32 MiCOM P115 AUX TIMERS G1 SETTING GROUP 1 PROTECTION G1 AUX TIMERS G1 Group 1 Settings 0 Disabled 1 AUX1 1 Trip L 2 Alarm L 2 tAUX1 S 0 Disabled 3 AUX2 1 Trip O 2 Alarm L 4 tAUX2 S OUTPUT RELAYS CONFIGURATION G1 RELAY CONFIGURATION G1 RLI 2 R FI 1 Latched outputs 2 Reverse outp logic 3 Protection Trip 4 Any Trip pulse 5 Alarm 6 start I gt 7 start gt gt 8 start gt gt gt 9 start IN 10 start IN gt gt 11 start Iasym gt 12 start AUX1 13 start AUX2 14 tI gt 15 tI gt gt 16 gt gt gt 17 tIN gt 18 tIN gt gt 19 tlasym gt 20 tCBF 21 CBF ext 22 tAUX1 23 tAUX2 24 Trip pulse tP 25 Close CB Commissioning P115 EN CM A41 MiCOM P115 CM 8 25 32 OUTPUT RELAYS CONFIGURATION G1 26 Trip CB 27 CB not Healthy 28 Hardware Warning 29 Start Phase A 30 Start Phase B 31 Start Phase C 32 Start Earth INPUTS CONFIGURATION G1 SETTING GROUP 1 INPUT CONFIGURATION G1 Input L1 Input L2 1 Reverse Input Logic 2 Blocked outputs 3 Reset Latched LEDs 4 Reset Latched Outputs 5 Blocking I gt 6 Blocking gt gt 7 Blocking gt gt 8 Blocking IN 9 Blocking IN gt gt 10 Blocking Iasym gt 11 Blocking
2. 000000 I3 5918 000000 uqaeg 000000 lt lt 5759 1 8 32235 576918 000000 2 eseua 000000 n 59 8 32235 575918 000000 8 eseua 000000 2 0000 yqzeg 0000 lt 5769 1 8 319365 5918 32235 31 35 32 35 000000 V 000000 TXOW 00 2 dnoz5 00 SUASIT 0000 000000 3 489 0000 lt lt NI 575918 11816 575918 32235 Ta bur33es 12 SRO 21235 IZETAL IZep 11816 000000 000000 lt 00 AyaTesH 00 lt lt NI 0000 g eseua 000000 tea 92 0000 lt NI 75918 buraaes 575918 32235 Te 3ou 85 Te 321035 TZEpAL 321235 000000 000000 lt lt NI 00 azs 00 lt NI 0000 V 000000 lt 0000 lt lt lt 69 8 jou 93 575918 32235 12 sn3e3s 92 te eee ICE 33038 2 qzeqs 000000 000000 NI 00 ves 00 lt lt lt I 00000 000000 lt lt NI3 0000 lt lt I 69 8 5918 31935 snjeqs 92 25 2 TZE 32835 000000 000000 lt lt lt I 00 3x9 199 00 lt lt 1 00000 Ay Te eH 000000 NIA 0000 I 59 8 575918 32 35 12 2 823 IZE pal Iztv 32235 000000 axe 499 000000 lt lt 00 ZXY 00 lt I 000000 82 000000 lt lt lt I3 00000 75918 75918 32235 te lecET AL draL TZ pal 000000 TIRA 000000 lt I 00 00 d
3. tIN gt 1s 0 02s 200s 0 01s Setting for the time delay for the definite time setting if selected for first e f stage element IN gt TMS 1 0 02 1 6 0 01 Setting for the time multiplier setting to adjust the operating time of the IEC UK and RI IDMT characteristic IN gt Time Dial 1 0 02 200 0 01 Setting for the time multiplier setting to adjust the operating time of the IEEE US IDMT curves Reset Delay Type DMT DMT or IDMT N A IN gt Setting to determine the type of reset release characteristic of the IEEE US curves DMT tReset IN gt Os Os 200s 0 01s Setting that determines the reset release time for definite time reset characteristic P115 EN ST A41 Settings ST 4 8 32 MiCOM P115 Setting Range Menu Text Default Setting Step Size Min Max IN gt gt Disabled Disabled Enable Trip Enable Alarm 2 1 3 Setting for Disable or enable of protection element It is possible to enable for tripping CB Enable Trip or enable for an Alarm signal only Enable Alarm If the protection element is Enable Trip configured it means that it is set to the General Trip Command Protect Trip which can be used in I O configuration If the protection element is Enable Alarm it means that it is set to the General Alarm Command Alarm which can be used in I O configuration IN gt gt Threshold 0 5 x Ien 0
4. settable time delay is included for manual closure with this circuit breaker check If the circuit breaker does not indicate a healthy condition in this time period following a close command then the relay will lockout and set off an alarm P115 EN ST A41 ST 4 28 32 3 5 Settings MiCOM P115 COMMUNICATION Setting Range Default Setting Step Size Min Max 0 Modbus Protocol 0 Modbus 1 IEC103 This cell sets the protocol used by the RS485 communications 0 Modbus RTU protocol 1 IEC103 protocol Relay Address 1 1 127 1 This cell sets the unique address for the relay so that only one relay is accessed by the master station s software Baud Rate 19200 bits s 4800 bits s 9600 bits s 19200 bits s 38400 bits s 5760 bits s 115200 bits s This cell controls the important that both the communication speed relay and the master station have the same speed setting between relay and master station It is Parity No parity No parity Odd parity Even parity This cell controls the parity format used in the data frames It is important that both the relay and the master station have the same pa rity setting Stop bits One stop bit One stop bit Two stop bits This cell controls the stop bit format used in the data frames It is important that both the relay and the master station
5. mimm O O gt R g ITI c o Step Unit P115 EN CT A41 CT 13 19 40 Default Value 0000 Format 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 000000 000000 000000 000000 000000 000000 000000 000000 000000 000000 os 00000 os 00000 Fw jen F39 F39 F39 gt pere a4 4 4 CT Communication Database CT 13 20 40 Address Description CB not Healthy Start Phase B Reseved bit bit p P115 EN CT A41 MiCOM P115 Default Value Communication Database P115 EN CT A41 MiCOM P115 CT 13 21 40 2 4 6 Page 4h remote controls Access in writing Address Description Values Default range 0400 Remote control Remote control word 1 0 to 15 2 4 7 Pages 5h 6h These pages are reserved 2 4 8 Page 7h Access in quick reading only MODBUS 07 function Address Description Values Default range Value 0700 Quick reading Relay status description bea a byte 2 4 9 Page 8h time synchronisation Access in writing for n words function 16 The time synchronisation format is based on 8 bits 4 words Inverted IEC 870 5 4 CP56Time2a 8 0800 99 does Day of week 1 Lo Sunday Season Hi on winter E CRI Not used FN xn a E 80 0 valid invalid Lr 0803 B FFFF 0 5999
6. P115 EN OP B41 OP 5 8 12 Operation MiCOM P115 Rectifier Moderately Inverse IEEE 100 10 E oi E D C BNA 0 01 01234567 8 9 101112131415 16 17 18 19 20 56 7959 100012123419 d6 17383820 Multiples of pickup setting 1 15 Multiples of pickup setting E TMS 0 05 D TMS 02 C TMS 0 5 E 10 005 20 0502 TD 0 5 B TMS 1 TMS 2 F Del AD Very Inverse IEEE Extremely Inverse IEEE 100 w C 0 01 0123456 7 8 9 1011 121314151617181920 Multiples of pickup setting 1 15 TD 0 05 TD 1 D TD 0 2 A TD 2 TD 0 5 01234567 8 9 1011121314151617181920 Multiples of pickup setting 1 15 TD 0 05 TD 1 D TD 0 2 A TD 2 C TD 0 5 E Operation MiCOM P115 P115 EN OP B41 OP 5 9 12 Short Time Inverse CO2 US 100 Time s 0 1 0123456 7 8 9 101112131415 16 17 18 192 Multiples of pickup setting 1 15 0 E TD 0 05 D TD 0 2 TD 0 5 TD 1 TD 2 Inverse CO8 US 100 0 01 0123 45 6 7 8 9 1011 121314 15 16 17 18 1920 Multiples of pickup setting 1050 05
7. dO 00 0000 000000 lt I 000000 draL 57691 8 5759 1 8 TE qesey IZepaL IZ V4L 23092014 000000 lt lt NI3 000000 dra 00 Zx v 00 sandano 000000 zxnva 0000 ZXY 0000 dano 59 8 576918 2093014 IZ IZ pexoora TZepal pa yeas TZE 000000 lt NI3 000000 00 IXNY 00 andur 000000 TXNWI 0000 0000 5 575918 575918 12 TE esaoAeH IZEVAL TZEE 211815 izer t 10 5 Irmware P115 Menu Map Fi Figure 14 Getting Started P115 EN GS A41 MiCOM P115 GS 3 24 24 atq lt 0 doas 6 1 0 Uuor4oeuuoo NI ytaed oN 0 S000 you 93 Ayrt ea T t 00261 2 pneg 00000 100000 AICUTIA IO 1 100 eieu 50070 t 0 10920303d 800700 uedoa 100000 Azewtad IO 1 I 39es9H JI9S 0 waeIv 1 sbutqqes Adoy ON Q 21815 Aq 39S9 Y t 00 000 29 lt ebueu 3 UI sesw
8. 44 Binary input L1 P0800ENa Figure 1 Functional diagram of P115 with all ordering options included P115 EN IT A41 Introduction IT 1 8 8 MiCOM P115 3 8 Ordering options Information Required with Order Relay Type P115 746 Number of output contacts 2 c o contacts 0 4 c o contacts 1 Energy output for CB trip Without 0 Low energy CB coil 24VDC 0 1J 1 Low energy CB coil 12VDC 0 02J 2 Type of the case Wall mounting 0 Flush mounting 1 Rear communication port RS485 Without 0 RS485 Switchable protocol Modbus RTU IEC103 Vx and CT powering only 1 Auxiliary voltage Vx range Vx common for auxiliary supply voltage and binary inputs Vx and CT powering 60 240VAC 60 250VDC Vx and CT powering 24 48AC DC CT powering only 60 240VAC 60 250VDC CT powering only Vx 24 48VAC DC E F nominal current setting range Setting range given for DT characteristic for IDMT refer to technical data chapter len 1A settings 0 01 2 len len 1A settings 0 05 10 len len 1A settings 0 2 40 len len 5A settings 0 01 2 len len 5A settings 0 05 10 len len 5A settings 0 2 40 len Phase nominal current setting range Setting range given for DT characteristic for IDMT refer to technical data chapter In 1A settings 0 2 40 In 0 In 5A settings 0
9. 2 4 Configuration of the LEDs LED configuration settings define which signal is connected with P115 LEDs Matrix configuration allows the free configuration of functions to the LEDs Menu Text Default Setting Setting Range pe Description of bits LED 8 7 6 5 4 3 LED 8 7 6 5 4 3 Latched LEDs 111111 0 1 0 1 0 1 0 1 0 1 0 1 1 Default Setting 1111 means that Every LED can be configured with latching or without LED8 1 LED 8 is latched up to LEDs reset Binary Input Front panel communication system LED7 1 LED 7 is latched up to LEDs reset Binary Input Front panel communication system LED6 1 LED 6 is latched up to LEDs reset Binary Input Front panel communication system LED5 1 LED 5 is latched up to LEDs reset Binary Input Front panel communication system LED4 1 LED 4 is latched up to LEDs reset Binary Input Front panel communication system LED3 1 LED 3 is latched up to LEDs reset Binary Input Front panel communication system Description of bits LED 8 7 6 5 4 3 LED 8 7 6 5 4 3 Protect Trip 000000 0 1 0 1 0 1 0 1 0 1 0 1 1 This LED is lit if any protection element is configured Trip is high current based protection elements and external protection elements AUX1 AUX2 CBF re trip Default Setting 000000 means that LED8 0 LED 8 is not configured to Pr
10. F39 F39 F39 F39 F39 998 gt _ 4 a4 EF E N m Communication Database P115 EN CT A41 CT 13 16 40 MiCOM P115 Address Description Default Value or fotos 1 fes rs ooo rs SatPec Josor fos 000000 _ 02FA Start Earth 0 to 1 1 bits F39 000000 precor y Communication Database P115 EN CT A41 MiCOM P115 CT 13 17 40 2 4 5 Page 3h setting Group 2 Access in reading and in writing range Protection gt DMT tReset 0 to 20000 0306 0302 Reserved tl gt gt TMS TD 2 to 20000 ST es nes bay Tze Term se ow ao HEP um 0313 0314 0315 0 0 0330 IN 0 0 0 0331 IN Threshold NE 5 tIN gt TMS TD 2 to 20000 2 5 0 CO i eee e oe 0343 to Reserved 034F Be ne de i 0 10 20000 0336 033F 0340 1 2 2 1 2 2 0351 lasym Threshold 8 to 4000 035F 0360 1 1 1 1 5 1 2 1 1 1 1 1 ojo ABRIR Communication Database P115 EN CT A41 CT 13 18 40 MiCOM P115 Default Value 1000 Address Description tAUX1 0 to 20000 0 2 0 2 0361 0362 0369 mew p Ei d pu 5 1 100 s E Fie 5 E 1 100 s 20 In 100 10 len 100 10 1 100 s 1000 C 0390 Setting group2 Reverse Input Logic 0 to 1 Inputs I gt 0395 Blocking 1 gt gt IN
11. Installation P115 EN IN B41 MiCOM P115 IN 12 3 18 1 RECEIPT OF RELAYS Upon receipt relays should be examined immediately to ensure no external damage has been sustained in transit If damage has been sustained a claim should be made to the transport contractor and Schneider Electric should be promptly notified Relays that are supplied unmounted and not intended for immediate installation should be returned to their protective polythene bags and delivery carton Section 3 of P115 EN IN gives more information about the storage of relays 2 HANDLING OF ELECTRONIC EQUIPMENT A person s normal movements can easily generate electrostatic potentials of several thousand volts Discharge of these voltages into semi conductor devices when handling electronic circuits can cause serious damage that although not always immediately apparent can reduce the reliability of the circuit The relay s electronic circuits are protected from electrostatic discharge when housed in the case Do not expose them to risk by removing the front panel or printed circuit boards unnecessarily Each printed circuit board incorporates the highest practicable protection for its semi conductor devices However if it becomes necessary to remove a printed circuit board the following precautions should be taken to preserve the high reliability and long life for which the relay has been designed and manufactured Before removing a printed circuit board ensure that yo
12. 0 95 x setting 5 Minimum IDMT level 1 05 x setting 5 IDMT curve 7 5 or 30 ms whichever is greater DT operation 2 or 30 ms whichever is greater DT reset 7 5 or 30 ms whichever is greater Earth Fault IN gt gt Pick up i Setting 5 in the temperature range 20 C to 60 C ii Setting 7 5 in the temperature range 40 C to 85 C DT operation 2 or 30 ms whichever is greater DT reset 10 or 30 ms whichever is greater Asymmetry Overcurrent Protection Measurement criteria based on the maximum deviation of the phase current to the average value of the three phase current Pick up i Setting 5 in the temperature range 20 C to 60 C P115 EN TD A41 TD 2 5 8 ii Setting 7 5 in the temperature range 40 C to 85 C DT operation 2 or 30 ms whichever is greater DT reset 7 5 or 30 ms whichever is greater Measured Data Acquisition Reference Conditions Sinusoidal signals with nominal frequency fn total harmonic distortion lt 2 ambient temperature 20 C and nominal auxiliary voltage Vx Deviation relative to the relevant nominal value under reference conditions Operating Data For current up to 3 In len Phase and earth current 3 Asymmetry current 5 Fault Data Phase and earth current For current lt 3 In len 5 For current gt 3 In len 5 of measured current value Communications USB USB port for local communications with a PC
13. 0000 lt 59 8 118165 57591 8 5 IZE 11815 Teer 32235 000000 eseua 000000 TXNY 00 2 dnoz5 00 lt 0000 000000 3 440 0000 lt lt NI 59 8 318915 576918 5 33 5 31935 Tzeral IzEr 32235 000000 2 000000 lt 00 00 lt lt NI 0000 eseud 000000 0000 NI 575918 575918 31815 jou g9 182 IZE 31836 IZepaL 11936 000000 000000 lt lt NI 00 azs 00 NI 0000 eseud 000000 lt 0000 lt lt lt I vS9L8 823 7591 8 32235 611818 g2 IcEV 32 3 TZevaL 12816 000000 zxnva 000000 NI 00 00 lt lt lt 1 00000 000000 lt lt NI3 0000 lt lt I 576918 576918 11815 2 snqeqs 2 2 IZEV3I 14437 11836 000000 TXNVI 000000 lt lt 00 axe ado 00 lt lt 1 00000 AyatesH 000000 lt NI3 0000 lt I 575918 75918 5 2 823 IZeraL 2 32 35 000000 3 382 000000 lt lt I 00 ZXOY 00 lt I 000000 a2 000000 lt lt lt 13 00000 WIETY ERSILE 59 8 32235 TZ Burien 2 41 draL tzerat 1zera 000000 Tea 92 000000 1 00 TXAN 00 dano 0000 do 000000 13 00000 575918 5691 8 118916 Te 12 qesoy TZEV AL tzera Auv 000000 lt w seI 000000 00
14. 1 COT lt 1 gt lt ADDR gt e Logical output 2 FUN 168 INF 177 TYP 1 COT lt 1 gt lt ADDR gt e Logical output 3 FUN 168 INF 178 1 COT lt 1 gt lt ADDR gt e Logical output 4 FUN 168 INF 179 TYP 1 COT lt 1 gt lt ADDR gt e Supervision Indications in monitor direction Availability e Start pick up I gt FUN lt 168 gt INF 9 2 COT lt 1 gt lt ADDR gt e Start pick up gt gt FUN lt 168 gt INF 10 2 COT lt 1 gt lt ADDR gt e Start pick up gt gt gt FUN lt 168 gt INF 11 2 COT lt 1 gt lt ADDR gt e Start pick up IN FUN 168 INF 12 TYP 2 COT lt 1 gt lt ADDR gt e Start pick up gt gt FUN 168 INF lt 13 gt 2 COT lt 1 gt lt ADDR gt e Trip Ix FUN lt 160 gt INF 90 2 COT lt 1 gt lt ADDR gt e Trip gt gt FUN lt 160 gt INF 91 2 COT lt 1 gt lt ADDR gt T e TripI FUN lt 168 gt INF 19 2 COT lt 1 gt lt ADDR gt e Trip IN FUN lt 160 gt INF 92 2 COT lt 1 gt lt ADDR gt e Trip IN gt gt FUN lt 160 gt INF 93 2 COT lt 1 gt lt ADDR gt e CB in O O closed position FUN lt 168 gt INF 33 lt 1 gt COT lt 1 gt lt ADDR e CBin F O open position FUN 168 INF 34 TYP lt 1 gt COT lt 1 gt lt ADDR gt Notes 1 The double arrow
15. 13 30 40 MiCOM P115 CODE DESCRIPTION F38 Unsigned integer Remote Control Word bit 0 Warm restart bit 1 Reset LEDs bit 3 Reset LEDs and Outputs bit 4 Clear fault recorder bit 5 Clear event recorder bit 7 CB open bit 8 11 Reserved bit 12 Local maintenace acknowledge bit 13 Oldest event acknowledge bit 14 Oldest fault acknowledge bit 15 CB close F39 Unsigned integer LED Function bit 0 LED3 bit 1 LED4 bit 2 LED5 bit 3 LED6 bit 4 LED7 bit 5 LED8 bit 6 15 reserved F40 Unsigned integer Output Configuration bit fields bit 0 RL1 bit 1 RL2 bit 2 RL3 refer to hardware ver bit 3 RL4 refer to hardware ver bit 4 Trip Output bit 5 Flag indicator bit 6 15 reserved F41 Unsigned integer Curve Type 0 DT 1 IDMT F49 Unsigned integer Relay Status bit 0 Relay status major alarms bit 1 Minor hardware alarm bit 2 Presence of non acknowledged event bit 3 Synchronisation state bit 4 reserved bit 5 Presence of non acknowledged fault record bit 6 15 reserved F50 Unsigned integer Earth Threshold Information Status bit 0 information threshold exceeded IN gt or IN gt gt or lasym gt bit 1 4 reserved bit 5 Instantaneous IN or IN gt gt or lasym gt after blocking bit 6 Tripping information tIN gt or tIN gt gt or gt bit 7 to 15 reserved F51 Unsigned integer Information Status about Additional Protection bit
16. 3 1 5 How to calculate the knee point voltage Vk of a CT defined in class P 17 3 2 Consumption of P115 relays 17 3 3 Calculation of required CT for P115 18 P115 EN AP A41 Application Notes AP 6 2 22 MiCOM P115 4 POSSIBLE CONNECTIONS OF CTS AT THE P115 S INPUT 21 4 1 Connection to 3 phase CTs core balanced CT 21 4 1 1 Core balanced CT connected to the measurement earth current input terminals 8 9 21 4 1 2 Core balanced CT connected to the self powered earth current input terminals 7 9 21 4 1 3 Connection to 2 phases CTs core balanced CT 21 4 2 The earth current input is connected to the summation of the 3 phase CTs 21 5 AUXILIARY SUPPLY FUSE RATING 22 FIGURES Figure 1 P115 single line functional diagram all options are included 4 Figure 2 Protection of silicon rectifiers 8 Figure 3 Matching curve to load and thermal limit of rectifier 8 Figure 4 Simple busbar blocking scheme 10 Figure 5 Time grading in the simple busbar blocking scheme 10 Figure 6 Definition of the magnetizing curve s knee point 15 Figure 7 Equivalent diagram of a current transformer 16 Application Notes P115 EN AP A41 MiCOM P115 AP 6 3 22 1 INTRODUCTION 1 1 Protection of feeders The secure and reliable distribution of power within a network is heavily dependent upon the integrity of the underground cables which link the various sections of the network together As such the associated protection system must
17. 35 F35 bits bits bits 029C Blocking CB Fail 35 36 36 36 40 33 33 36 02A3 Setting Group 2 02 0 Setting group 1 Latched outputs Oto 1 1 Outputs Wm Reversecuiptoge oi p ooa ti i bits bits bits bits bits bits bits bits 0100 o i o S 7 ojo 00001 F 110000 00000 F36 0000 F40 F33 F33 om stato eso fon sarto we fote eso m smww oe fi fois eso oo Communication Database P115 EN CT A41 MiCOM P115 CT 13 15 40 Address Group Description Values Step Unit Format Default range Value Start AUX2 0 to 1 pits 8 0000 EI ini Ed T orti Pp quwx foto E HEN HEN E NEN bits F36 0000 0000 0000 0000 0000 0000 0000 0000 0000 02BC 0000 0000 F36 F36 F36 F40 F40 F40 F40 F40 F40 F40 F40 F40 F40 F36 F36 F40 i F33 F33 0000 i F36 F36 F36 F36 F39 F39 F39 F39 F39 F39 F39 F39 F39 F39 F39 F39 39 0000 0000 p ie eei 000000 000000 000000 000000 000000 000000 000000 000000 000000 000000 000000 F40 F40 ao po F40 Fao LM F40 F36 F36 LM 99 F33 pts F3e 0000 F36 F36 Fa F39 F39 F39 F39 F39 F39
18. Binary output Optional Binary output Flag indicator 24V 1 0 01Ws Optional Low Energy Trip Coil 24V 1 0 1Ws or 12V 0 02Ws T Optional USB T RS 485 P115 PO808ENb Figure 4 Typical 3 phase CTs Core balanced CT connection The P115 is not supplied via a Core Balance CT An auxiliary voltage source should be connected to the 11 12 terminals in order to ensure that the P115 is supplied for earth fault currents below 0 2 In Refer to Application chapter P115 EN AP Installation P115 EN IN B41 MiCOM P115 IN 12 11 18 phase to phase voltage Vx from s s auxiliary transformer or VT Binary input Binary output output Optional Binary output Optional Binary output NIN WIN N N NM gt ojojoj N AJ wo ny gt Flag indicator 24V 1 0 01Ws Optional Low Energy Trip Coil 24V 10 1Ws or 12V 0 02Ws Optional RS 485 P0809ENb Figure5 Typical 2 phase CTs Core balanced CT connection The P115 is not supplied via a Core Balance CT An auxiliary voltage source should be connected to the 11 12 terminals in order to ensure that the P115 is supplied for earth fault currents below 0 2 In If the phase to phase voltage can t be applied 11 12 terminals a core balanced CT can be connected to 7 9 terminal to supply P115 But this application requires a Core Balanced CT
19. Command Alarm which can be used in I O configuration tAUX1 10 Os 200s 0 01s Setting for the operating time delay for AUX1 function AUX2 2 Disabled Disabled Enable Trip N A Enable Alarm Setting for Disable or enable of AUX2 element It is possible to enable for tripping CB Enable Trip or enable for an Alarm signal only Enable Alarm If the protection element is Enable Trip configured it means that it is set to the General Trip Command Protect Trip which can be used in I O configuration If the protection element is Enable Alarm it means that it is set to the General Alarm Command Alarm which can be used in I O configuration tAUX2 10s 0s 200 s 0 01 s Setting for the operating time delay for AUX2 function Settings P115 EN ST A41 MiCOM P115 ST 4 11 32 2 2 Configuration of the output relays Output settings define which signal is connected with P115 outputs Matrix configuration allows the free configuration of functions to the outputs Menu Text Default Setting Setting Range Step Size Description of bits RL4 RL3 RL2 RL1 RL4 RL3 RL2 RL1 Latched Outputs 0000 0 1 0 1 0 1 0 1 1 Every output can be configured with latching of output or without Default Setting 0100 means that RL4 0 output RL4 is not latched The high state of the function configured to the output determines the high state of RL4 Th
20. Disabled Disabled Enable Trip Enable Alarm Setting for Disable or enable of protection element It is possible to enable for tripping CB Enable Trip or enable for an Alarm signal only Enable Alarm If the protection element is Enable Trip configured it means that it is set to the General Trip Command Protect Trip which can be used in configuration If the protection element is Enable Alarm it means that it is set to the General Alarm Command Alarm which can be used in I O configuration I gt gt gt Threshold 4x In 0 2 x In 40 0 x In 0 1 x In Pick up setting for third stage of the overcurrent element gt gt gt 0 15 05 2005 0 015 Setting for the time delay for the definite time setting if selected for this stage element Settings P115 EN ST A41 MiCOM P115 ST 4 7 32 2 1 2 E Gnd Fault 50N 51N The earth fault element operates from earth fault current that is measured directly from the system either by means of a separate CT located in a power system earth connection or via a residual connection of the three line CT s All overcurrent settings are independent for each of the two stages The first stage of e f non directional overcurrent protection has time delayed characteristics which are selectable between inverse definite minimum time IDMT or definite time DMT The second stage has definite time characteristics only Setting Ra
21. P115 EN IT A41 Introduction IT 1 4 8 MiCOM P115 P115 EN CM Communication Database This section provides an overview regarding the SCADA communication interfaces of the relay P115 EN VH Firmware and Service Manual Version History History of all hardware and software releases for the product Introduction P115 EN IT A41 MiCOM P115 IT 1 5 8 2 INTRODUCTION TO MiCOM MiCOM is a comprehensive solution capable of meeting all electricity supply requirements It comprises a range of components systems and services from Schneider Electric Central to the concept is flexibility MiCOM provides the ability to define an application solution and through extensive communication capabilities integrate it with your power supply control system The components within MiCOM are P range protection relays C range control products M range measurement products for accurate metering and monitoring S range versatile PC support and substation control packages MiCOM products include extensive facilities for recording information on the state and behaviour of the power system using disturbance and fault records They can also provide measurements of the system at regular intervals for a control center enabling remote monitoring and control to take place For up to date information on any product visit our website www schneider electric com P115 EN IT A41 Introduction IT 1 6 8 3 3 1
22. Relay type P115 Software Version dra Original Description of Changes 51 Technical 4 A November 2007 Original Issue v2 12 P115 EN M A31 Date of Issue Compatibility Documentation v Added Protection start in LEDs configuration A April 2008 V2 12 P115 EN M A21 Added German language Added IEC103 protocol C A September 2008 v Added French language V2 12 P115 EN 1 Y Added Spanish Language 9114 INOO IN AJO SIH UOISI9A enuen 6 pue asemu t L t1 HA LVV HA N2 S HA Relay type P115 Software m Version Hardware Original Suffix Date of Issue I i Description of Changes Added Polish language Added Regional language Added Switchable Modbus IEC protocol Added Output tests COMMISSIONING Test Pattern and COMMISSIONING Test outputs cells Added self reset of latched LEDs by starting of protection GLOBAL SETTINGS LOC LEDs Reset by Start Added latching of Alarm indication in ALARM column GLOBAL SETTINGS LOC Alarm Display Added remaining latched Alarms cells ALARM STATUS Alarm Reset Modified a start of switching on the LCD display logic Added a setting pertaining to the IN connection GLOBAL SETTINGS CIRCUIT BREAKER IN connection Added Flag indicator and Tripping Coil option are configurable for functions chosen in Outputs configuration Added new functions Start Phase A Start Phase B Start Phase C Start Earth In out
23. When electrical equipment is in operation dangerous voltages will be present in certain parts of the equipment Failure to observe warning notices incorrect use or improper use may endanger personnel and equipment and also cause personal injury or physical damage Before working in the terminal strip area the equipment must be isolated Proper and safe operation of the equipment depends on appropriate shipping and handling proper storage installation and commissioning and on careful operation maintenance and servicing For this reason only qualified personnel may work on or operate the equipment Qualified personnel are individuals who Are familiar with the installation commissioning and operation of the equipment and of the system to which it is being connected Are able to safely perform switching operations accordance with accepted safety engineering practices and are authorised to energize and de energize equipment and to isolate ground and label it Are trained in the and use of safety apparatus accordance with safety engineering practices trained in emergency procedures first aid The equipment documentation gives instructions for its installation commissioning and operation However the manual cannot cover all conceivable circumstances or include detailed information on all topics In the event of questions or specific problems do not take any action without proper author
24. bit 4 Trip in N bit 5 tl bit 6 tl gt gt bit 7 gt gt bit 8 tIN gt bit 9 tIN gt gt bit 10 reserved bit 11 gt bit 12 tAUX1 bit 13 tAUX2 bit 14 tCB Fail bit 15 CB ext F30 Unsigned integer CB status 0 52A 1 52B 2 52 faulty 3 52 not defined 1 Unsigned integer E Gnd CT Sec 0 lenz1A 0 01 2len 1 len 1A 0 05 10len 2 In 1A 0 2 40In 3 5A 0 01 2In 4 0 05 10In 5 In 6A 0 2 40In F32 Unsigned integer Setting group 0 Setting group 0 1 Setting group 1 F33 Unsigned integer Output Configuration bit 0 RL1 bit 1 RL2 bit 2 RL3 refer to hardware ver bit 3 RL4 refer to hardware ver bit 4 Flag indicator bit 5 15 reserved F35 Unsigned integer Input configuration bit 0 Input L1 bit 1 Input L2 bit 2 15 reserved F36 Unsigned integer Output configuration bit 0 RL1 bit 1 RL2 bit 2 RL3 refer to hardware ver bit 3 RL4 refer to hardware ver bit 4 15 reserved F37 Unsigned integer Phase Threshold Information Status bit 0 information thresold exceeded I gt 1 gt gt gt gt gt bit 1 Instantaneous IA bit 2 Instantaneous IB bit 3 Instantaneous IC bit 4 reserved bit 5 Instantaneous i I gt or gt gt or I gt gt gt after blocking bit 6 Tripping information tl gt or tl gt gt or tl gt gt gt bit 7 to 15 reserved Communication Database P115 EN CT A41 CT
25. single core e 0 2 2 5mm finely stranded Connections to the equipment must only be made using single strand wire or stranded wire with the use of insulated crimp terminals to maintain insulation requirements Where UL Listing of the equipment is not required the recommended fuse type for external wiring is a high rupture capacity HRC type with a maximum current rating of 16 Amps and a minimum d c rating of 250 Vdc for example the Red Spot NIT or TIA type To maintain UL and CUL Listing of the equipment for North America a UL Listed fuse shall ER be used The UL Listed type shall be a Class J time delay fuse with a maximum current rating of 15 A and a minimum d c rating of 250 Vdc for example type AJT15 The protective fuse s should be located as close to the unit as possible USB port Connection to the USB port can be made by means of an USB cable The USB port allows the user to download settings or fault records from the P115 or change configuration To access this port it is necessary to remove the cover plate protection against unauthorized setting changes on the P115 front panel Installation P115 EN IN B41 IN 12 6 18 MiCOM P115 6 3 A typical cable specification would be e of cable USB 2 0 e Connectors PC type A male P115 type mini B male Communication software 1 Studio The virtual COM port for USB communications should be set in as follows Address 1 Baud rate 11
26. to the relay refer to chapter P115 EN ST of this manual and make a note of the time displayed when the chronometer stops WARNING NEVER OPEN CIRCUIT THE SECONDARY CIRCUIT OF A CURRENT TRANSFORMER SINCE THE HIGH VOLTAGE PRODUCED MAY BE LETHAL AND COULD DAMAGE INSULATION Check the operating time Check that the operating time recorded by the timer is within the range shown in Table 2 NOTES Except for the definite time characteristic the operating times given in Table 2 are for a time multiplier or time dial setting of 1 Therefore to obtain the operating time at other time multiplier or time dial settings the time given in Table 2 must be multiplied by the setting for IDMT characteristics In addition for definite time and inverse characteristics there is an additional delay of up to 0 03 seconds that may need to be added to the relay s acceptable range of operating times If the P115 is not connected to an auxiliary voltage supply Vx it is necessary to add an additional start up time delay The value of this delay depends on the ratio value current 0 2In Refer to the Application chapter of this manual P115 EN AP or the Technical Data chapter of this manual P115 EN TD For all characteristics allowance must be made for the accuracy of the test equipment being used Commissioning P115 EN CM A41 MiCOM P115 8 15 32 Operating Time at Twice Current Setting and Time Multipli
27. undercurrent element 50 25 50 125 ms safety margin operating time Note that all the CB Fail resetting methods involve the operation of the undercurrent elements Where element reset or CB open resetting is used the undercurrent time setting should still be used if this proves to be the worst case The examples above consider direct tripping of a circuit breaker Note that where auxiliary tripping relays are used an additional 10 15ms must be added to allow for trip relay operation Breaker fail undercurrent settings The phase undercurrent settings I lt must be set less than load current to ensure that I lt operation indicates that the circuit breaker pole is open A typical setting for overhead line or cable circuits is 2096 In with 596 In common for generator circuit breaker CBF The standard earth fault undercurrent element must be set to less than the trip setting typically as follows IN lt IN trip 2 Application Notes P115 EN AP A41 MiCOM P115 AP 6 13 22 2 7 Minimum tripping time The minimum tripping time when the relay is switched on to a fault is subject to the fault current level When the current is greater than the fault current level by 0 2 In len hot start the minimum trip time can be defined as follows Time delay setting Operation time measuring algorithm time delay time to decision energizing time of output contact Typical operation time
28. 0 t O ebenbueT 1D Page 6 irmware P115 Menu Map Fi Figure 15 Settings P115 EN ST A41 MiCOM P115 SETTINGS Date 20 February 2009 Hardware Suffix A Software Version 1D Connection Diagrams 10P11504 P115 EN ST A41 Settings MiCOM P115 Settings P115 EN ST A41 MiCOM P115 ST 4 1 32 CONTENTS 1 GENERAL INFORMATION 3 2 SETTINGS 5 2 1 Protection settings 5 2 1 1 Phase O C 50 51 5 2 1 2 E Gnd Fault 50N 51N 7 2 1 3 Asymmetry 46 8 2 1 4 CB Fail 50BF 9 2 1 5 AUX Timers 10 2 2 Configuration of the output relays 11 2 3 Configuration of the inputs 17 2 4 Configuration of the LEDs 20 3 GLOBAL SETTINGS 24 3 1 LOC 24 3 2 SETTING GROUP SELECT 25 3 3 CT RATIO 26 3 4 CIRCUIT BREAKER 27 3 5 COMMUNICATION 28 4 COMMISIONING 29 5 SETTING CHANGE MODE 30 6 OP PARAMETERS 31 P115 EN ST A41 ST 4 2 32 Settings MiCOM P115 Settings P115 EN ST A41 MiCOM P115 ST 4 3 32 1 GENERAL INFORMATION The P115 must be configured to the system and application by means of the appropriate settings This section gives instructions for determining the settings which are located in the folder entitled Schneider Electric in the menu tree The order in which the settings are listed and described in this chapter is the protection settings control and configuration settings see section P115 EN GS for the detailed r
29. 0 start AUX1 or AUX2 or CB Fail or CBF ext bit 1 4 reserved bit 5 start after blocking AUX1 or AUX2 or CB Fail or CBF ext bit 6 tripping information tAUX1 or tAUX2 or tCB Fail or CBF ext bit 7 to 15 reserved Communication Database P115 EN CT A41 MiCOM P115 CT 13 31 40 CODE DESCRIPTION F52 Unsigned integer Menu Language Information 0 English 1 German 2 Polish 3 French 4 Spanish 5 Regional F53 Unsigned integer Measurements Display in the menu 0 Measurements refered to In or len 1 Measurements refered to A 2 Control window F54 Unsigned integer LEDs Reset by Protection Start 0 No 1 Yes F55 Unsigned integer Alarm Display Reset 0 Self Reset 1 Manual Reset F56 Unsigned integer Protocol 0 Modbus 1 IEC103 F60 Inverted CP56Time2a Format F80 Unsigned integer Event code value byte 0 event code see Events Mapping byte 1 associated value Communication Database P115 EN CT A41 CT 13 32 40 MiCOM P115 2 4 16 2 4 17 2 4 18 2 4 18 1 Request to retrieve the oldest non acknowledge event 03h 36h 00 00 09h xx xx This event request may be answered an error message with the error code EVT EN COURS ECRIT 5 An event is being written into the saved FRAM Note On event retrieval two possibilities exist regarding the event record acknowledgement a Automatic event record acknowledgement on event retrieval b Non
30. 0 1 0 1 1 tIN gt gt function is high if the set time delay of IN gt gt element has elapsed Description of bits TC FI RL4 RL3 RL2 RL1 TC FI RL4 RL3 RL2 RL1 gt 000000 0 1 0 1 0 1 0 1 0 1 0 1 1 tIasym function is high if the set time delay of Iasym gt element has elapsed Description of bits TC FI RL4 RL3 RL2 RL1 TC FI RL4 RL3 RL2 RL1 CB Fail 000000 0 1 0 1 0 1 0 1 0 1 0 1 1 CB Fail function is high if the set time delay of CBF protection function is elapsed Description of bits TC FI RL4 RL3 RL2 RL1 TC FI RL4 RL3 RL2 RL1 CB ext 000000 0 1 0 1 0 1 0 1 0 1 0 1 1 CB ext function is high if the logic function CB ext is triggered via binary input CB ext function trigger CB Fail function It is used if CB Fail should be start via external protection relay Description of bits TC FI RL4 RL3 RL2 RL1 TC FI RL4 RL3 RL2 RL1 tAUX1 000000 0 1 0 1 0 1 0 1 0 1 0 1 1 tAUX1 function is high if the set time delay of AUX1 element has elapsed Settings MiCOM P115 P115 EN ST A41 ST 4 15 32 Menu Text Default Setting Setting Range Step Size Description of bits TC FI RL4 RL3 RL2 RL1 TC FI RL4 RL3 RL2 RL1 tAUX2 000000 0 1 0 1 0 1 0 1 0 1 0 1 tAUX2 function is high i f the set time delay of AUX2 element has elapsed Description of bits RL4 RL3 RL2 RL1 RL4 RL3 RL2 RL1 Trip pulse tP 0000 0 1 0 1 0 1 0 1 1 Any Trip is high if Protection Trip is high
31. 1 This LED is lit if the ground current exceeds the IN stage Description of bits LED 8 7 6 5 4 3 LED 8 7 6 5 4 3 Start IN gt gt 000000 0 1 0 1 0 1 0 1 0 1 0 1 1 This LED is lit if the ground current exceeds the IN gt gt stage Description of bits LED 8 7 6 5 4 3 LED 8 7 6 5 4 3 Start gt 000000 0 1 0 1 0 1 0 1 0 1 0 1 1 This LED is lit if the unbalance current exceeds the Iasym gt stage Description of bits LED 8 7 6 5 4 3 LED 8 7 6 5 4 3 Start AUX1 000000 0 1 0 1 0 1 0 1 0 1 0 1 This LED is lit if the AU X1 timer is energized Description of bits LED 8 7 6 5 4 3 LED 8 7 6 5 4 3 Start AUX2 000000 0 1 0 1 0 1 0 1 0 1 0 1 This LED is lit if the AU X1 timer is energized Description of bits LED 8 7 6 5 4 3 LED 8 7 6 5 4 3 gt 000000 0 1 0 1 0 1 0 1 0 1 0 1 This LED is lit if the set time delay for the gt element has elapsed Description of bits LED 8 7 6 5 4 3 LED 8 7 6 5 4 3 gt gt 000000 0 1 0 1 0 1 0 1 0 1 0 1 This LED is lit if the set time delay for the 1 gt gt eleme nt has elapsed Description of bits LED 8 7 6 5 4 3 LED 8 7 6 5 4 3 gt gt gt 000000 0 1 0 1 0 1 0 1 0 1 0 1 This LED is lit if the set time delay for the I gt gt gt element has elapsed P115 EN ST A41 ST 4 22 32 S
32. 14 means that the event generated on event occurrence and another event is generated on event disappearing 2 can be LOCAL COT lt 11 gt or REMOTE COT lt 12 gt Communication Database P115 EN CT A41 MiCOM P115 CT 13 37 40 3 11 List of data contained in General Interrogation It is given in the answer to the General Interrogation Gl Relay state information are Class 1 data they are systematically sent to the master station during a General Interrogation The list of processed data following a General Interrogation is given below it is a sub assembly of the spontaneous message list so like spontaneous messages these data are generated on rising and lowering edge Status indications monitor direction Availability e Leds reset FUN lt 160 gt INF lt 19 gt TYP 1 COT lt 9 gt lt ADDR gt T e Setting Group number 1 active FUN lt 160 gt INF lt 23 gt TYP lt 1 gt COT lt 9 gt lt ADDR gt e Setting Group number 2 active FUN lt 160 gt INF lt 24 gt TYP lt 1 gt COT lt 9 gt lt ADDR gt e Auxiliary input 1 FUN lt 160 gt INF lt 27 gt lt 1 gt COT lt 9 gt lt ADDR gt Auxiliary input 2 FUN lt 160 gt INF 28 TYP lt 1 gt COT lt 9 gt lt ADDR gt e Logical input 1 FUN lt 168 gt INF lt 160 gt TYP lt 1 gt COT lt 9 gt lt ADDR gt e Logical input 2 FUN lt 168 gt INF lt 161 gt TYP lt 1 gt COT lt 9 gt lt ADDR gt e Logical output 1 FUN lt 168 gt INF lt
33. 2 40 In 1 Languages English Polish German French Spanish English Czech Slovak Hungarian Turkish 2 amp Technical Data P115 EN TD A41 MiCOM P115 TECHNICAL DATA Date 20 February 2009 Hardware Suffix A Software Version 1D Connection Diagrams 10P11504 P115 EN TD A31 TD 2 2 8 Technical Data MiCOM P115 Technical Data MiCOM P115 Technical Data Mechanical Specifications Design Wall mounting case or flush mounting case Enclosure Protection EN 60529 1991 IP 40 Protection for relay housing IP 20 Protection for terminals IP 52 Protection front panel against dust and dripping water for flash mounted case Weight approx 1 kg Terminals AC Current Input Terminals Threaded M3 screw type plug in terminals with wire protection for conductor cross section i 0 2 6 mm single core ii 0 2 4 finely stranded General Input Output Terminals For power supply binary and contact inputs output contacts and COM for rear communications Threaded M3 screw type plug in terminals with wire protection for conductor cross section i 0 2 4 single core ii 0 2 2 5 mm finely stranded Local communication USB port Cable Type USB 2 0 Connectors i PC type A male ii P115 type mini B male Rear Communications Port EIA RS 485 signal levels two wire Connections located on general purpose block M
34. 4 39 tl gt gt gt Alarm 7 001Bh bit 4 40 tIN gt Alarm F50 N 001Ch bit 4 41 tIN gt gt Alarm F50 N 001Dh bit 4 42 tAUX1 Alarm F51 N 001Fh bit 4 43 tAUX2 Alarm F51 N 0020 bit 4 44 lasym gt Alarm F50 TY 001Eh bit 4 45 CB Fail Alarm F51 74 0021h bit 4 46 Aux1 F51 14 001Fh bit 0 47 Aux2 F5114 0020 bit 0 48 tAUX1 Trip F29 014h bit 12 49 tAUX2 Trip F29 014h bit 13 2 4 12 NOTE The double arrow means the event is generated on event occurrence 7 and on event disappearance N On event occurrence the corresponding bit of the associated format is set to 1 On event disappearance the corresponding bit of the associated format is set to 0 Page 36h Most older event data Access in word reading function 03 3600h Most older event data Communication Database P115 EN CT A41 MiCOM P115 CT 13 25 40 2 4 13 Page 37h fault record value data Access in word reading function 03 3700h Fault value record 1 3701h Fault value record n 2 3702h Fault value record n 3 3703h Fault value record n 4 3704h Fault value record 5 Word n 1 Fault number Words 2 amp 3 Fault date second number of seconds since 01 01 94 Words 4 amp 5 Fault date millisecond Word n 6 Fault date season 02 winter not available in P115 12 summer not available in P115 2 undefined default value in P115 Word n 7 Active setting group during the fau
35. 8 7 6 5 4 3 LED 8 7 6 5 4 3 tCB not Healthy 0000 0 1 0 1 0 1 0 1 This LED is lit if the time delay for the CB not Healthy function has elapsed Setting Group 1 0000 0 1 0 1 0 1 0 1 1 This LED is lit if P115 works on the first setting group Description of bits LED 8 7 6 5 4 3 LED 8 7 6 5 4 3 Start Phase A 000000 0 1 0 1 0 1 0 1 0 1 0 1 1 The Start Phase A LED is illuminated if the phase overcurrent stage set to trip in phase A has started current in phase A above the phase current thresholds Settings P115 EN ST A41 MiCOM P115 ST 4 23 32 Menu Text Default Setting Setting Range one Description of bits LED 8 7 6 5 4 3 LED 8 7 6 5 4 3 Start Phase B 000000 0 1 0 1 0 1 0 1 0 1 0 1 1 The Start Phase B LED is illuminated if the phase overcurrent stage set to trip in phase B has started current in phase B above the phase current thresholds Description of bits LED 8 7 6 5 4 3 LED 8 7 6 5 4 3 Start Phase C 000000 0 1 0 1 0 1 0 1 0 1 0 1 1 The Start Phase C LED is illuminated if the phase overcurrent stage set to trip in phase C has started current in phase C above the phase current thresholds Description of bits LED 8 7 6 5 4 3 LED 8 7 6 5 4 3 Start Earth 000000 0 1 0 1 0 1 0 1 0 1 0 1 1 started earth current above the earth current thresholds The Start Earth LED is illuminated if the e
36. Bump Class 1 Technical Data MiCOM P115 Protection Functions Note All settings and measurements are given as a multiple of the In len current value ordering option Operation time The typical operation time if the P115 is supplied from Vx or if the current is above 0 2 In len x 40ms If the pre fault current is below 0 2 In len in all phases and that there is no Vx on the 11 12 terminals additional time correction should be applied for the operation time measured on the outputs contacts i Hardware ver P115746x0xxxxxx without energy output for low energy tripping coil for all types of fault 1 2 3 phases lt 25mA except 1 phase fault where the current is below 1 6 In len lt 30mA ii Hardware ver P115746x1xxxxxx with energy output for low energy tripping coil 24VDC 0 1Ws and P115746x2xxxxxx with energy output for low energy tripping coil 12VDC 0 02Ws for faults where the current is lt 0 6 In len 1 phase fault lt 60ms 2 phase fault lt 60ms 3 phase fault x 30ms for all types of fault where the current is gt 0 6 In len 1 2 3 phases x 30ms The correction time measured on energy outputs is 6ms shorter than that measured on output contacts Note The tripping time in case of a fault if the pre fault current is below 0 2 In and there is no auxiliary voltage Vx on terminals 11 12 is the sum of the set time delay the operation time and the correction time see a
37. Connection is available for IEC60870 5 103 through the rear RS485 port It is possible to select both the relay address and baud rate using the front panel interface Following a change a reset command is required to re establish communications The parameters of the communication are the following e Even Parity e 8 Data bits e 1 stop bit e Data rate 9600 or 19200 bauds Initialisation Whenever the relay has been powered up or if the communication parameters have been changed a reset command is required to initialise the communications The relay will respond to either of the two reset commands Reset CU or Reset FCB the difference being that the Reset CU will clear any unsent messages in the relay s transmit buffer The relay will respond to the reset command with an identification message ASDU 5 the Cause Of Transmission COT of this response will be either Reset CU or Reset FCB depending on the nature of the reset command The following information will be contained in the data section of this ASDU Manufacturer Name Schneider Electric The Software Identification Section will contain the first four characters of the relay model number to identify the type of relay eg P115 In addition to the above identification message if the relay has been powered up it will also produce a power up event Time synchronisation The relay time and date can be set using the time synchronisation feature of the IEC60870 5 103 protocol Th
38. ENTER key then the DOWN or UP key Once the required record is selected press the ENTER key to confirm the change If the Control rights password has been set to the default value 00000 this operation does not require entering a password otherwise it is necessary to enter Control rights password Records in the Fault Recorder can be reset using the MICOM S1 communication software or via the 485 link Record Nb l Fault 1 COUNTERS Trips Nb Trip Fault Trips Nb 00000 Fault Start Nb 00000 Alarm Nb 00000 HW Warnings Nb 00000 No fault Fault Time 00 00 00 000 Fault Date 01 01 08 Active Set Group Group 1 Fault Origin None Counter Reset C No operation 0000 0A 0000 0A 0000 0A 0000 0A P0859ENa Figure 5 RECORDS column Counters can be reset in the Counter Reset cell of the menu by pressing the ENTER key then the DOWN or UP key Once the required record is selected press the ENTER key to confirm the change This operation requires entering an Administrator password In addition counters can be reset using the S1 communication software or via the RS485 link P115 EN GS A41 GS 3 16 24 1 6 4 SETTTING GROUP columns Getting Started MiCOM P115 The P115 has two setting groups Each setting group includes Protection settings Output relay configuration Binary input configuration P
39. In steps 0 01 In 1 gt gt gt Function Type of characteristic DT DT time delay 0 00 s to 200 s steps 0 01 s 1 gt gt gt Current Set 0 2 to 40 In steps 0 01 In Technical Data MiCOM P115 Ground Overcurrent Earth Fault Stages IN Function DT TD time delay 0 00 s to 200 s steps 0 01 s TMS 0 02 s to 1 6 s steps 0 01 s Type of characteristic i DT ii IEC S Inverse IEC V Inverse IEC E Inverse V UK LT Inverse vi RC vi RI xiv UK ST Inverse xv UK Rectifier Inverse xvi IEEE M Inverse xvii IEEE V Inverse xviii IEEE E Inverse xix US CO2 US CO8 The mathematical formulae and curves for the twelve Inverse Time characteristics available with the P115 are presented in the Operation chapter P115 EN OP of this manual Reset time DT delayed IDMT delayed for IEEE US IEC stages only according to the mathematical formulae presented in Operation chapter P115 EN OP of this manual IN gt Current Set ordering option i 0 01 to 0 2 len step 0 01 len ii 0 05 to 1 len steps 0 01 len iii 0 2 to 4 len steps 0 01 len IDMT accuracy is ensured up to 20 x current setting IN gt gt Function Type of characteristic DT DT time delay 0 00 s to 200 s steps 0 01 s IN Current Set i 0 01 to 2 len steps 0 01 len ii 0 05 to 10 len steps 0 01 len iii 0 2 to 40 len steps 0 1 len Minimum earth current to supply P115 0 2 len Technical Data MiC
40. P115 front panel is lit Disconnect the ac auxiliary voltage from terminals 11 12 Connect the Current Test i If the green Healthy LED and display equipment to the current input are not lit in all four tests it means that terminals 1 2 P115 is damaged Send the relay back to Schneider Electric repair centre Apply 0 2 In current ii If the green Healthy LED and display rale UR Ven are lit in test 1 and 2 but not lit in test 3 iru si P check the current circuit wiring E If all connections are OK send the relay Repeat procedure for and CTs back to Schneider Electric 3 terminals 3 4 5 6 and 7 9 repair centre 0 2 len ii If the green Healthy LED and display are lit in test 1 and 3 but not lit in test 2 check the auxiliary voltage level on terminals 11 12 and connections in that circuit If all connections are OK and the voltage level is in the required range refer to Technical Data chapter of this manual send the relay back to Schneider Electric repair centre Table 2 Failure of relay to power up Troubleshooting MiCOM P115 4 4 1 4 2 P115 EN TS A41 TS 10 5 8 MALOPERATION OF THE RELAY DURING TESTING Failure of binary inputs The binary inputs are configured in the SETTING GROUP1 2 INPUTS CONFIGURATION column for each setting group If an input does not appear to be recognized by the relay scheme logic the COMMISSIONING Opto Status menu option can be used to verify whethe
41. Protocol MODBUS RTU The virtual COM port for USB comms should be set in as follows i Address 1 ii Baud Rate 115 2 kbits s iii Comms Mode Data Bit 8 Stop bit 1 Parity none RS485 Protocol ordering option MODBUS IEC 103 Physical Link Copper RS485 half duplex Comms Mode Data Bits 8 Stop bit 1 or 2 default 1 Parity no parity Odd parity Even parity default Even parity Address 1 to 127 default 1 Baud Rate 4 8 kbits s to 115 2 kbits s default 19 2 kbit s P115 EN TD A41 TD 2 6 8 Settings Measurements and Records List Settings Phase Overcurrent I gt gt gt Function DT TD time delay 0 02 s to 200 s steps 0 01 s TMS 0 02 s to 1 6 s steps 0 01 s Type of characteristics DT ii IEC S Inverse iii V Inverse iv IEC E Inverse iii UK LT Inverse iv RC vi RI vii UK ST Inverse viii UK Rectifier Inverse ix IEEE M Inverse x IEEE V Inverse xi IEEE E Inverse xii US CO2 xiii US CO8 The mathematical formulae and curves for the twelve Inverse Time characteristics available with the P115 are presented in the Operation chapter P115 EN OP of this manual IDMT accuracy is ensured up to 20 x In Reset time DT delayed IDMT delayed for IEEE US IEC stages only according to the mathematical formulae presented in Operation chapter P115 EN OP of this manual I gt gt gt Current Set 0 2 to 4
42. Ratio tap in use P115 EN CM A41 8 21 32 Hz Overcurrent protection relay MiCOM P115 Model number Serial number Rated phase current In Rated e f current len Delete as appropriate Column Identification of Relay OP PARAMETERS Firmware version Hardware version Column Global Setting Data GLOBAL Line CT primary A SETTINGS E Gnd CT primary A GESTIS IN connection O terminals 7 9 _ 1 terminals 8 9 _ tOpen pulse min S GLOBAL SETTINGS tClose Pulse S CIRCUIT tP pul BREAKER puse 5 t CB not Healthy S Relay Address RS485 Baud Rate RS485 GLOBAL SETTINGS Parity RS485 COMMUNICATION StopBits RS485 Protocol RS485 Modbus RTU IEC103 P115 EN CM A41 Commissioning CM 8 22 32 MiCOM P115 Column Global Setting Data 0 English L 1 German L Language 2 Polish L 3 French L GLOBAL 4 Spanish L 5 Regional L SETTINGS cbe 0 Meas In 1 Meas A L efault Displa LOG iid 2 Control L LEDs Reset by Start 0 No O 1 Yes OI Alarm Display 0 Self Reset 1 Reset Column Setting Group GLOBAL Active Setting Group Group 1 Group2 SETTINGS SETTING T Change Setting GROUP 1641 62 gt SELECT OVERCURRENT G1 SETTING GROUP
43. SETTING GROUP SELECT Copy Settings cell It will then only be necessary to change the parameters values Getting Started P115 EN GS A41 MiCOM P115 GS 3 17 24 1 6 5 GLOBAL SETTINGS column Global Settings include all general settings such as Localization LOC Setting Group operation SETTING GROUP SELECT Current transformer parameters CT RATIO Time settings related to Circuit Breaker control or monitoring CIRCUIT BREAKER RS485 communication parameters COMMUNICATION GLOBAL SETTINGS SETTING GROUP SELECT CT RATIO CIRCUIT BREAKER COMMUNICATION Language Setting Group Line CT primary tOpen pulse min Protocol 0 English 1 Group 1 00000A 00 00s 0 Modbus Default Display t Change Setting Line CT Sec tClose Pulse Relay Address 0 Meas In 61 gt 62 000 005 1 0 005 001 Copy settings E Gnd CT Primary tP Pulse Baud Rate No operation 00000A 00000min 0 4800 P0861ENb Figure 7 GLOBAL SETTINGS column It is possible to Copy all parameters from Setting Group 1 to Setting Group 2 and inversely in Copy settings cell by pressing the ENTER key Choose the required operation by pressing the UP or DOWN key Copy G1 gt G2 or Copy G2 gt G1 Confirm the change by pressing the ENTER key Note The setting group change time delay from Setting Group 1 to Setting Group 2 t Change Setting cell applies to chan
44. The relay s serial number current rating and power rating information can be viewed on the upper side of the case The ac or dc supply voltage must be within the corresponding nominal range of the device as indicated in the table below for the appropriate nominal rating of the equipment Nominal ranges of auxiliary voltage Vx Operative dc Range Operative ac Range 24 to 48 Vac dc 19 to 58 Vdc 19 to 53 Vac 60 to 250 Vdc and 60 to 240 Vac 48 to 300 48 to 265 Vac Once the ratings have been verified for the application connect the equipment to an external power source capable of delivering the requirements specified on the label to perform the relay familiarization procedures Please refer to the wiring diagrams in the Installation section for complete installation details ensuring that the correct polarities are observed in the case of dc supply Note The label specifies Vx for both the P115 supply input and binary inputs Current inputs The measuring current inputs of the P115 should be connected to the secondary wires of the power system CTs as shown in the connection diagrams in section 8 of P115 Installation chapter P115 EN IN The parameters of the CTs which can be connected to the P115 s current input terminals are detailed in section 3 of chapter P115 EN AP Applications Tripping coil output ordering option Terminals 29 and 30 3 block terminal are used for the connection of the CB s lo
45. Trip LED Blocked overcurrent protection Blocked overcurrent protection involves the use of start contacts from downstream relays wired onto blocking inputs of upstream relays This allows identical current and time settings to be employed on each of the relays involved in the scheme as the relay nearest to the fault does not receive a blocking signal and hence trips discriminatively This type of scheme therefore reduces the amount of required grading stages and consequently fault clearance times The principle of blocked overcurrent protection may be extended by setting fast acting overcurrent elements on the incoming feeders to a substation which can then be blocked by start contacts from the relays protecting the outgoing feeders The fast acting element is thus allowed to trip for a fault condition on the busbar but is stable for external feeder faults by means of the blocking signal This type of scheme therefore provides much reduced fault clearance times for busbar faults than would be the case with conventional time graded overcurrent protection The availability of multiple overcurrent and earth fault stages means that back up time graded overcurrent protection is also provided This is shown in Figures 4 P115 EN AP A41 Application Notes AP 6 10 22 MiCOM P115 and 5 In incomer for blocking of higher stage 1 gt gt input L1 should be used configured to blocking I gt gt function The feeder start contact should be
46. be calculated from wire length cross section and specific resistance The relation between secondary accuracy limiting voltage to IEC 60044 1 2 3 4 and rated accuracy limit factor acc to IEC 60044 1 2 3 3 is given as follows sn The following application data are given CT ratio 100 1 A CT nominal power 2 5 VA 2 5 Ohm CT internal burden 0 5 Ohm Lead resistance 0 01774 Ohm 2m one way 2 5 Cu Sample calculation Max short circuit current phase ground 2 kA 20 Rye 0 28 Ohm phase phase 10 100 Rre 0 28 Ohm Relay minimum operating current IN gt 0 2 Rre 28 9 Ohm I gt 1 Rre 0 63 Ohm Phase ground fault minimum current Ra 295 052 O 01TTA 289 26 Ra Ron 0542 5 Phase ground fault maximum current ecke Ra R _ 99 0 5 2 0 01774 0 28 _ 3 E Ra Ron 0 5 2 5 Phase phase fault minimum current cue ot a R _ 5 9 0 5 0 01774 0 63 _ 3g ER 0 5 2 5 P115 EN AP A41 Application Notes AP 6 20 22 MiCOM P115 Phase phase fault maximum current m R _ 109 05 5 9 01774 0 28 26 6 Ra Ry 0 5 2 5 Overall a minimum rated accuracy limit factor of 26 6 is required A typical standard value thus would be n 30 Application Notes P115 EN AP A41 MiCOM P115 AP 6 21 22 4 4 1 4 1 1 4 2 POSSIBLE CONNECTIONS OF CTs AT THE P115 s INP
47. be carried out in a special handling area such as described in the British Standard document Installation P115 EN IN B41 IN 12 4 18 MiCOM P115 3 STORAGE If relays are not to be installed immediately upon receipt they should be stored in a place free from dust and moisture in their original cartons Where de humidifier bags have been included in the packing they should be retained Care should be taken on subsequent unpacking that any dust which has collected on the carton does not fall inside In locations of high humidity the carton and packing may become impregnated with moisture and the de humidifier crystals will lose their efficiency Prior to installation relays should be stored at a temperature of between 25 C to 70 C 13 F to 158 F UNPACKING Care must be taken when unpacking and installing the relays so that none of the parts are damaged and additional components are not accidentally left in the packing or lost Ensure that any Users CDROM or technical documentation is NOT discarded this should accompany the relay to its destination substation Relays must only be handled by qualified persons The site should be well lit to facilitate inspection clean dry and reasonably free from dust and excessive vibration RELAY MOUNTING Individual relays are normally supplied with an outline diagram showing the dimensions This information can also be found in the product publication Wall mounting only
48. configured to the I gt gt stage Block highset element P115 from start contact Feeder 1 Feeder 2 Feeder 3 Feeder 4 PO803ENa Figure 4 Simple busbar blocking scheme 0 3 0 2 Feeder start contact Time s zus NCOMer high set 0 1 element Time to block 0 1 2 3 4 5 Current kA P0804ENb Figure 5 Time grading in the simple busbar blocking scheme For further guidance on the use of blocked overcurrent schemes refer to Schneider Electric Any binary input can be configured to block the following protection functions I gt I gt gt I gt gt gt IN IN gt gt AUX1 AUX2 and The programmed binary input blocks the timer and start signals Application Notes P115 EN AP A41 MiCOM P115 AP 6 11 22 2 6 2 6 1 Circuit breaker fail protection CBF Following the inception of a fault one or more main protection devices will operate and issue a trip output to the circuit breaker s associated with the faulted circuit Operation of the circuit breaker is essential to isolate the fault and prevent damage further damage to the power system For transmission sub transmission systems slow fault clearance can also threaten system stability It is therefore common practice to implement circuit breaker failure protection which monitors that the circuit breaker has opened within a reasonable time Ifthe fault current has not been interrupted foll
49. current is fed via terminals 1 2 3 4 5 6 7 8 9 connected to CTs The type of connection is shown in Figure 1 The external connection diagram is also available on the front panel of P115 Ensure that I gt is configured to RL1 output NOTE The Low Energy Trip output and the Flag Indicator outputs are activated by any protection elements set to trip Disconnect auxiliary voltage supply from P115 terminals 11 and 12 Connect the trip output or flag indicator output so that its operation will trip the test set and stop the timer NOTE During tripping the trip and flag indicator outputs output energy on terminals is trip coil output 0 1 Ws 24 Vdc or 0 02 Ws 12 V ordering option flag indicator output 0 01 Ws 24 Vdc The timer should be compatible with the above outputs Connect the current output of the test set to the phase of the relay current transformer input terminals 1 and 2 P115 EN CM A41 Commissioning CM 8 14 32 MiCOM P115 5 2 1 2 5 2 1 3 Ensure that the timer starts when the current is applied to the relay Low Optional Binary Flag energy Optional Vx Binary inputs Binary outputs outputs indicator coil HS ABE 31 32 T USB 0806 Figure 1 P115 external connection diagram Perform the test Ensure that the timer is reset Apply to the relay a current of twice the setting for I
50. document 1 2 Glossary 2 MODBUS PROTOCOL 2 1 Technical characteristics of the MODBUS connection 2 1 1 Parameters of the MODBUS connection 2 1 2 Synchronisation of exchanges messages 2 1 3 Message validity check 2 1 4 Address of the relays 2 2 MODBUS functions of the MiCOM relays 2 3 Presentation of the MODBUS protocol 2 8 1 Format of frames sent by the relay 2 3 2 Messages validity check 2 4 MiCOM P115 Dual powered relay database organisation 2 4 1 Description of the application mapping 2 4 2 Page Oh Product information remote signalling measurements 2 4 8 1h P115 general remote parameters 2 4 4 Page 2h setting Group 1 2 4 5 Page 3h setting Group 2 2 4 6 Page 4h remote controls 2 4 7 Pages 5h 6h 2 4 8 Page 7h 2 4 9 Page 8h time synchronisation 2 4 10 Mapping access characteristics 2 4 11 Page 35h addresses 35001 to 354Ah event record data 9 words 2 4 12 36h 2 4 13 Page 37h fault record value data 2 4 14 Page 3Eh most older Fault record value data 2 4 15 Description of the mapping format MICOM P115 Dual powered P115 EN CT A41 CT 13 1 40 10 12 13 17 21 21 21 21 22 23 24 25 26 27 Communication Database CT 13 2 40 2 4 16 2 4 17 2 4 18 3 3 1 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3 9 3 10 3 11 3 12 3 13 3 14 Request to retrieve the oldest non acknowledge event Request to retrieve a dedicated event Modbus request
51. fault current quantity The first stage of overcurrent protection has time delayed characteristics which are selectable between inverse definite minimum time IDMT or definite time DMT The second stage has a definite time characteristic only The type of characteristics are the same as for phase protection elements IEC SI Standard Inverse Time IEC VI Very Inverse Time IEC El Extremely Inverse Time UK LI Long Time Inverse UK STI Short Time Inverse UK Rect Rectifier RI Electromechanical Inverse IEEE MI Moderately Inverse Time IEEE VI Very Inverse Time IEEE El Extremely Inverse Time US CO2 Short Time Inverse a US Time Inverse Operation P115 EN OP B41 MiCOM P115 OP 5 11 12 2 3 2 4 2 5 2 6 2 7 The mathematical formulae and curves for the twelve Inverse Time characteristics available with the P115 are presented in section 1 1 of this chapter The IEEE US IEC curves may have an inverse time reset characteristic DMT delayed or instantaneous reset refer to section 1 1 of this chapter Depending on the connection of the e f CT to the current terminals e f current can supply P115 terminals 7 and 9 or not supply the P115 terminals 8 and 9 refer to section 8 of the Installation chapter of this manual Unbalance protection The unbalance element is based on the difference of phase currents in relation to the average value of the 3 phase current The unbala
52. for the transformer feeding the rectifier See the appropriate section dealing with restricted earth fault protection Earth fault protection Earth fault E F current is measured on the e f input Depending on the connection on the terminals e f input can supply P115 terminals 7 and 9 or not supply the P115 terminals 8 and 9 Two stages are available IN gt and IN gt gt The first stage has IDMT or DT characteristics The types of characteristics are the same as for I refer to section 2 1 5 If the e f CT is connected to terminals 7 and 9 and auxiliary voltage supply is not connected to terminals 11 12 the current on e f input has to be greater than 0 2len to supply P115 Calculation of the required E F settings The setting value of E F overcurrent protection should be greater with safety margin than the charging currents flowing in the protected line to prevent an earth fault in other parts of the system tripping the relay The value of the safety coefficient depends on the application and accuracy of obtained earth fault current value typically 1 5 to 2 5 External trip Binary Input can be configured to CB trip by using AUX1 or AUX2 functions AUX1 and AUX2 functions have a timer so a trip can be time delayed tAUX1 and tAUX2 can be configured to RL1 RL2 RL3 Trip protection trip Alarm signal Programmable LEDs If it is configured to Trip protection trip tAUX1 and or tAUX2 lit
53. gt 0372 0373 10 01 0396 0397 7 b gt Blocking i Jovi 0398 Blocking IN 0010 lasym gt _ 0t osaa 091 77 0t 039C P Blocking CB Fail _ Ax ee bot oF 7 CBF 09 osao OBstaus52a 001 CBstMusszB 091 osa2 oti 03A3 Setting Group 2 CT 03B0 Setting group 2 Latched outputs Oto 1 1 Outputs 7 0100 0000 0111 0000 0000 A o F1 F16 F1 F35 F35 F35 F35 F35 F35 F35 F35 F35 F35 F35 F35 F35 F35 F35 F35 F35 F35 F36 F36 F36 F36 F40 F33 F33 36 mm sato e fot eso mer e fot eso sw loe fia eso oo Communication Database MiCOM P115 Address Values range eto saam sau Start AUX2 je ee Je y Jem pe qw e wes ee mem ora pei cer ei a o E E a m E po C en Description Trip pulse tP Close CB 0 to 1 remote or from HMI Bee T_T Setting group 2 Latched LEDs p CA E je fi or Je for qwe ee qwe eet mem eet ora pei cer pei wu oto Ed
54. gt gt gt 5 P115 EN CM A41 Commissioning CM 8 28 32 MiCOM P115 EARTH FAULT Measured G2 SETTING GROUP 2 PROTECTION G2 E GND FAULT G2 Settings 0 Disabled 1 IN 1 Trip L 2 Alarm L 2 IN Threshold len 3 Delay Type IN 4 tIN gt TMS TD S 5 Reset Delay Type IN 6 DMT IN S 0 Disabled O 7 IN gt gt 1 Trip O 2 Alarm L 8 IN gt gt Threshold 9 tIN gt gt S ASYMMETRY G2 SETTING GROUP 2 PROTECTION G2 ASYMMETRY G2 Settings 0 Disabled 1 Iasym 1 Trip L 2 Alarm L 2 gt Threshold In 3 gt S 50BF CB Fail G2 SETTING GROUP 2 PROTECTION G2 ASYMMETRY G2 Settings 0 Disabled O 1 CB Fail 1 Trip O 2 Alarm L 2 CB Fail Time tBF S 3 I Threshold In 4 IN Threshold Ien Commissioning P115 EN CM A41 MiCOM P115 CM 8 29 32 AUX TIMERS G2 SETTING GROUP 2 PROTECTION G2 AUX TIMERS G2 Group 1 Settings 0 Disabled 1 AUX1 1 Trip L 2 Alarm L 2 tAUX1 S 0 Disabled 3 AUX2 1 Trip O 2 Alarm L 4 tAUX2 S OUTPUT RELAYS CONFIGURATION G2 RELAY CONFIGURATION G2 R2 R FI 1 Latched outputs 2 Reverse outp logic 3 Protection Trip 4 Any Trip pu
55. have the same stop bits setting NOTE The above parameters are applicable to the RS485 port only The USB port s parameters are fixed Address 1 iv Comms Mode Data Bit 8 Stop bit 1 Parity none i Protocol Modbus RTU i i ii Baud Rate 115 2 kbits s Settings P115 EN ST A41 MiCOM P115 ST 4 29 32 4 COMMISIONING This column contains menu cells which allow the status of the opto isolated inputs output relay contacts to be monitored Additionally there are cells to test the operation of the output contacts user programmable LEDs Menu Text Default Setting Available Settings Description of bits L2 L1 Opto I P Status 00 This menu cell displays the status of the relay s opto isolated inputs as a binary string a 1 indicating an energized opto isolated input and a 0 a de energized one Description of bits RL4 RL3 RL2 RL1 Relay O P Status 0000 This menu cell displays the status of the digital signals that result in energization of the output relays as a binary string a 1 indicating an operated state and 0 a non operated state Description of bits TC FI RL4 RL3 RL2 RL1 Test Pattern 000000 This menu cell is used to set outputs for testing A 1 in this cell means that the corresponding output will be energized when the test command is issued When the test is applied COMMISSIONING Test outputs cell the outputs set to 1 in
56. minimum d c rating of 250 Vd c for example type AJT15 Where UL or CSA Listing of the equipment is not required a high rupture capacity HRC fuse type with a maximum current rating of 16 Amps and a minimum d c rating of 250 Vd c may be used for example Red Spot type NIT or TIA Equipment operating conditions The equipment should be operated within the specified electrical and environmental limits Current transformer circuits Do not open the secondary circuit of a live CT since the high voltage produced may be lethal to personnel and could damage insulation Generally for safety the secondary of the line CT must be shorted before opening any connections to it For most equipment with ring terminal connections the threaded terminal block for current transformer termination has automatic CT shorting on removal of the module Therefore external shorting of the CTs may not be required the equipment documentation should be checked to see if this applies For equipment with pin terminal connections the threaded terminal block for current transformer termination does NOT have automatic CT shorting on removal of the module External resistors including voltage dependent resistors VDRs Where external resistors including voltage dependent resistors VDRs are fitted to the equipment these may present a risk of electric shock or burns if touched Battery replacement Where internal batteries are fitted they should be repla
57. of output contacts An apparent failure of the relay output contacts may be caused by the relay configuration the following tests should be performed to identify the real cause of the failure Output testing can be performed using the COMMISSIONING Test outputs cell When the command is executed the set outputs COMMISSIONING Test Pattern will be energized and will remain so for the duration of the TOpen pulse GLOBAL SETTINGS CIRCUIT BREAKER tOpen pulse min Test Check Action Is the Out of Service LED Illumination of this LED may indicate that the 1 illuminated relay is in test mode or that the protection has been disabled due to a hardware verify error see Table 2 Examine the Test outputs in the 2 Commissioning section of the menu If the relevant bits of the contact status are operated then proceed to test 4 if not proceed to test 3 Verify by examination of the fault record whether the protection element is operating correctly If the protection element does not operate verify whether the test is being correctly applied 3 If the protection element operates then it is necessary to check the configuration to ensure that the configuration of the protection element to the contacts is correct Using the procedure described in If the output relay operates then the problem the Commissioning chapter must be situated in the external wiring to the P115 EN CM energize every relay If the output
58. the minimum tripping time from the cold start with a 0 ms set time delay is equal to 0 ms 40 ms 30 ms 70 ms Typically it is around 65 ms The correction time measured on the energy outputs is 6ms shorther than the time measured on the output contacts P115 EN AP A41 Application Notes AP 6 14 22 MiCOM P115 3 3 1 CT REQUIREMENTS For the conventional case of a resistive load the voltage at the secondary winding of the transformer is proportional to the primary current therefore the error remains constant In the case of a MICOM P115 self powered protection relay this no longer applies since the voltage at the input of the protection circuit is in a non proportional ratio to the input current The best solution to check whether the MiCOM P115 relay is adapted to a given CT is to have available the magnetization curve and the internal resistance of the CT in question To guarantee good accuracy at low current levels the magnetizing current of the CT must be low In other words the input voltage of the relay must be sufficiently low compared with the knee point voltage Vk of the CT The following sections show the ac burden of the P115 MiCOM relay and taking into account the magnetizing curve of a CT it is then possible to determine the accuracy of the system as a whole for the entire current range P115 associated CT Recapitulation of the current transformer s characteristics Characterization of a c
59. this cell will be energized and will remain so for the duration of the tOpen time GLOBAL SETTINGS CIRCUIT BREAKER tOpen pulse min Description of bits RL4 RL3 RL2 RL1 0 no operation Test outputs 0 no operation 1 Apply test This menu cell is used to apply a test to the outputs set in the Test Pattern cell To apply the output test Press enter change a setting option from 0 to 1 1 Apply test and confirm this action by pressing the ENTER key The outputs set in the Test Pattern cell are then energized and will remain so for the duration of the tOpen time GLOBAL SETTINGS CIRCUIT BREAKER tOpen pulse min Note if the Test control password is not equal to 0 before an option is changed from 0 to 1 the Test control password should be entered as for every other P115 setting P115 EN ST A41 Settings ST 4 30 32 MiCOM P115 5 SETTING CHANGE MODE This column contains menu cells which allow the settings and configuration to be changed Before any change of settings it is necessary to set a P115 s Edit Setting Mode to Without limits or Protection only If Changing parameters is allowed the LEDs light one by one until the Setting Change status cell is in the Protected state In the Without limits state it is possible to change all settings In the Protection only state it is only possible to change protection settings columns In the Contro
60. to 31 The relay address Parity and Baud Rate settings for EIA RS 485 are set by using local communication via USB port MiCOM 1 software Default Factory Setting Baud Rate 19 2bps Parity None Stop Bits one stop bit Data Bits 8 no settable Ensure that the relay s address and baud rate settings in the application software are the same as those set via USB port Check that communications with the relay can be established USB communications port The USB port is used for local communications between a PC and the P115 The USB port integrates electronic boards only to allow communications with the P115 via the HMI RS485 USB interfaces Input binary and current and Output boards are not supplied For local communications the MiCOM 1 setting software is used USB parameters not settable in the P115 Protocol Modbus RTU Address 1 Baud Rate 115 2kbits s Data Bits 8 Stopbit 1 Parity None Current inputs This test verifies that the accuracy of current measurement is within the acceptable tolerances The P115 measures the RMS value Apply current equal to the line current transformer secondary winding rating to each current transformer input of the corresponding rating in turn see Table 1 or external connection diagram P115 EN IN for appropriate terminal numbers checking its magnitude using a multimeter test set readout The corresponding reading can then be checked in the MEA
61. to display the following cell Change Password Press the ENTER key to display Change Password 00000 Using the LEFT RIGHT UP DOWN keys enter the new password Press ENTER to confirm the new password and jump to the cell displaying information on protection rights For example Setting change Without limits To exit the SETTING CHANGE MODE apply a warm reset press the LEFT and UP keys simultaneously to display the following cell Edit settings Exit press ENTER Press the ENTEH key to confirm switching from SETTING CHANGE MODE to PROTECTION MODE The following cell should be displayed Setting change Protected The above cell confirms that the settings are password protected and that the P115 is in PROTECTION MODE Additionally the programmable LEDs do not flash sequentially Getting Started P115 EN GS A41 MiCOM P115 GS 3 13 24 1 6 P115 Menu description 1 6 1 Headers The main headers are shown in Figure 3 CB status Opened CTRL no operat 000 0A 000 0 000 0A 000 0 MEASUREMENTS 00 00In 00 00In ALARM STATUS RECORDS SETTING GROUP 1 00 001n 00 00ren lt gt OP PARAMETERS SETTING CHANGE COMMISSIONING GLOBAL SETTINGS SETTING GROUP 2 gt MODE gt I P0857ENa Figure 3 Column headers 1 6 2 ALARM STATUS column ALARM STATUS see Figure 4 information is available
62. two consecutive trips at maximum power 300V 59J without recharge e Connection in parallel possible to control the trip coil if it requires more than 59J e Available output power 118 2 59J e Output impedance per capacitor bank 10 Ohms e Capacitance two capacitor banks of 1320 uF each e Power consumption to charge the capacitors under 100V 5 VA 2 5W e Power consumption when the capacitors are charged under 100 1 5 VA or 0 25 W NOTE The current leads should be connected exactly as shown in Figures 7 to 10 Installation P115 EN IN B41 MiCOM P115 IN 12 13 18 Auxiliary Power Supply Vx ac Auxiliary B Voltage i Current Inputs Measuring Trip Element 0 5 1 Communication Interface RS 485 31 Energy outputs Note An auxifany voltage supply is Flag Indicator ouput 27 recommended have RS 465 communication facilities MiCOM P115 Hardware configuration of WA 25 for Trip element 0 5A or 1 11 12 13 14 b2 b2 Trip element 1 b1 Trip element 0 5 A 0832 Figure 6 Connection example for a P115 powered by a WA 25 and with 4 pole connection A B C N Installation P115 EN IN B41 IN 12 14 18 MiCOM P115 Auxiliary Power Supply Vx A ac Auxiliary Voltage 12 mm C SS w Current Inputs PM mai Mita 0 5 1 A i Measuring
63. value measured on Flag Indicator output 27 and 28 during trip signal note 50ms pulse signal Close CB after which apply current above setting value CB has opened Communications between PC and MiCOM 1 setting software established Setting Checks Protection function timing tested Applied current Expected operating time Measured operating time Commissioning MiCOM P115 Yes No Yes No Yes No Yes No O V dc Yes Yes 1L Yes Yes Yes N A Yes N A 00000 lt O V dc Yes No Yes No Commissioning MiCOM P115 3 1 3 2 3 3 3 4 Final Checks All test equipment leads shorts and test blocks removed safely Disturbed customer wiring re checked All commissioning tests disabled Fault records reset via S1 software P115 EN CM A41 8 19 32 Yes Yes N A Yes Yes Ep TE RE _ No L _ P115 EN CM A41 Commissioning CM 8 20 32 MiCOM P115 COMMENTS Optional for site observations or utility specific notes Commissioning Engineer Customer Witness Date Date Commissioning MiCOM P115 T SETTING RECORD Date Station Front Plate Information Engineer Circuit System Frequency CT
64. which can provide enough energy to supply the P115 refer to Application chapter P115 EN AP Installation P115 EN IN B41 IN 12 12 18 MiCOM P115 9 9 1 9 2 AN APPLICATION CONNECTION DIAGRAMS Tripping the CB using energy from a tripping transfomer Design of the Main Current Transformers The main current transformer load is composed essentially of the P115 s power consumption the consumption of the supply conductors wiring and in the event of transformer current tripping the consumption of the tripping transformer that is normally short circuited on the secondary side In the event of transformer current tripping the maximum load occurs during closing of the tripping device The CT requirements of the P115 are given in the technical data chapter When selecting the main current transformers one should keep in mind that the impedances of the protection device and of the tripping transformer decrease when the current increases due to saturation The current transformers rating matching the overcurrent factor and the short circuit withstand capability can be based on the corresponding low loads These main current transformers can be considerably overburdened in the nominal current range even when the fault does not exceed the accuracy class rating Typically main current transformers having a nominal power rating of 15 VA 10 P10 or 30 VA10 P5 should be provided but in any case the required parameters of the main current transf
65. 01 x Ien 2 0 x Ien 0 01 x Ien Pick up setting for second stage of the e f overcurrent element For dynamic range ordering option 0 01 2 where len nominal current for e f input IN gt gt Threshold 2 5 x Ien 0 05 x Ien 10 0 x Ien 0 01 x Ien Pick up setting for second stage of the overcurrent element For dynamic range ordering option 0 05 10Ien where len nominal current for e f input IN gt gt Threshold 5 x Ien 0 2 x Ien 40 0 x Ien 0 1 x Ien Pick up setting for second stage of the e f overcurrent element For dynamic range ordering option 0 2 40Ien where len nominal current for e f input tIN gt gt 0 1s 0s 200s 0 01s Setting for the time delay for the definite time setting if selected for this stage Asymmetry 46 Setting Range Menu Text Default Setting Step Size Min Max Iasym Disabled Hess e Veh N A Enable Alarm Setting for Disable or enable of asymmetry element It is possible to enable for tripping CB Enable Trip or enable for an Alarm signal only Enable Alarm If the protection element is Enable Trip configured it means that it is set to the General Trip Command Protect Trip which can be used in configuration If the protection element is Enable Alarm it means that it is set to the General Alarm Command Alarm which can be used in
66. 1 PROTECTION G1 PHASE O C G1 Settings 0 Disabled 1 I gt 1 Trip L 2 Alarm L 2 I Threshold In 3 Delay Type I 4 tI gt TMS TD S 5 Reset Delay Type I 6 DMT tReset I gt S 0 Disabled 7 1 gt gt 1 Trip L 2 Alarm L 8 1 gt gt Threshold In 9 Delay Type I gt gt 10 tI gt gt TMS TD S 11 Reset Delay Type gt gt 12 DMT tReset I gt gt S 0 Disabled I 13 I gt gt gt 1 Trip O 2 Alarm L 14 1 gt gt gt Threshold In 15 gt gt gt S Commissioning P115 EN CM A41 MiCOM P115 8 23 32 EARTH FAULT Measured G1 SETTING GROUP 1 PROTECTION G1 E GND FAULT G1 Settings 0 Disabled 1 1 IN 1 Trip L 2 Alarm L 2 IN Threshold Ien 3 Delay Type IN 4 tIN gt TMS TD S 5 Reset Delay Type IN 6 DMT tReset IN S 0 Disabled 7 gt gt 1 Trip O 2 Alarm L 8 IN Threshold 9 tIN gt gt S ASYMMETRY G1 SETTING GROUP 1 PROTECTION G1 ASYMMETRY G1 Settings 0 Disabled 1 1 Iasym gt 1 Trip O 2 Alarm L 2 gt Threshold In 3 gt S 50BF CB Fail G1 SETTING GROUP 1 PROTECTION G1 ASYMMETRY G1 Settings 0 Disabled O 1 CB Fail 1 Trip L 2 Alarm L 2 CB Fail Time tBF S 3 I Threshold In 4 IN Threshold Ien P115 EN CM A41 Commissioning
67. 176 gt TYP lt 1 gt COT lt 9 gt lt ADDR gt e Logical output 2 FUN lt 168 gt INF lt 177 gt TYP lt 1 gt COT lt 9 gt lt ADDR gt e Logical output 3 FUN lt 168 gt INF lt 178 gt TYP lt 1 gt COT lt 9 gt lt ADDR gt e Logical output 4 FUN lt 168 gt INF lt 179 gt TYP lt 1 gt COT lt 9 gt lt ADDR gt e CBin O O closed position FUN lt 168 gt INF 33 TYP 1 COT lt 9 gt lt ADDR gt e CB in F O open position FUN 168 INF lt 34 gt TYP lt gt COT lt 9 gt lt ADDR gt Communication Database P115 EN CT A41 CT 13 38 40 MiCOM P115 3 12 Processed Commands System Commands Availability Synchronization Command ASDU 6 FUN lt 255 gt INF 0 TYP lt 6 gt COT lt 8 gt This command can be sent to a specific relay or global The time sent by master is the time of the first bit of the frame The relay synchronizes with this time corrected by the frame transmission delay After updating its time the relay send back an acknowledge to the master by giving its new current time This acknowledge message will be an event of ASDU 6 type General Interrogation Initialization command ASDU 7 FUN lt 255 gt INF lt 0 gt TYP 7 COT lt 9 gt This command starts the relay interrogation The relay then sends a list of data containing the relay state see list described above The command contains scan number which will be included in the answers of the Gl cycle genera
68. 2 4 2 4 2 1 f EIA RS 485 communication port g Case earth The insulation resistance should be greater than 100MQ at 500V On completion of the insulation resistance tests ensure all external wiring is correctly reconnected to the relay External wiring Check that the external wiring is correct when compared to the relevant relay and scheme diagram Ensure as far as practical that the phase sequence is as expected The relay diagram number appears on the rating label on the upper side of the case The connections should be checked against the scheme wiring diagram Auxiliary supply voltage Vx The relay can be operated from either a dc only or ac dc auxiliary supply depending on the relay s nominal supply rating The incoming voltage must be within the operating range specified in Table 1 Without energizing the relay measure the auxiliary supply to ensure it is within the operating range Nominal Supply Rating DC AC rms DC Operating Range AC Operating Range 24 48V 24 48V 19 to 58V 19 to 53V 60 250V 60 240V 48 to 300V 48 to 265V Table 1 Operational range of auxiliary supply Vx It should be noted that the relay can withstand an ac ripple of up to 1296 of the upper rated voltage on the dc auxiliary supply Do not energize the relay or interface unit using the battery charger with the battery disconnected as this can irreparably damage the relay s power supply circuitry Energ
69. 2009 Hardware Suffix A Software Version 1D Connection Diagrams 10P11504 P115 EN IT A41 Introduction MiCOM P115 Introduction P115 EN IT A41 MiCOM P115 IT 1 1 8 CONTENTS 1 MiCOM DOCUMENTATION STRUCTURE 3 2 INTRODUCTION TO MiCOM 5 3 PRODUCT SCOPE 6 3 1 Key for the manual 6 3 2 Functional overview 6 3 3 Ordering options 8 FIGURES Figure 1 Functional diagram of P115 with all ordering options included 7 P115 EN IT A41 Introduction IT 1 2 8 MiCOM P115 Introduction P115 EN IT A41 MiCOM P115 IT 1 3 8 1 MiCOM DOCUMENTATION STRUCTURE The manual provides a functional and technical description of the MiCOM protection relay and a comprehensive set of instructions for the relay s use and application The section contents are summarized below P115 ENIT Introduction A guide to the MiCOM range of relays and the documentation structure Also a general functional overview of the relay and brief application summary are given P115 EN TD Technical Data Technical data including setting ranges accuracy limits recommended operating conditions ratings and performance data Compliance with norms and international standards is quoted where appropriate P115 EN GS Getting Started A guide to the different user interfaces of the protection relay describing how to start using it This section provides detailed information regarding the communication interfaces of the relay including a detailed description
70. 3 2 MiCOM P115 PRODUCT SCOPE P115 is a 3 phase and earth fault non directional overcurrent CT powered and or auxiliary voltage powered protection relay depends on the ordering option Refer to chapter 3 3 The scope of P115 applications covers e industry and distribution MV networks e back up protection in HV applications The relay protects one two or three phase applications against earth fault and phase to phase short circuit faults It was especially developed for compact MV switchboards with circuit breakers Thanks to a built in USB port fault records events and relay settings can be downloaded to a local PC Settings of the protection elements are made using the front panel keyboard with verification via the display or using 1 setting software Key for the manual P115 relays are available with different hardware versions number of outputs type of a case different rated currents 1A or 5A auxiliary voltage ranges communication protocols etc Please refer to the commercial publication for further information on the product features and application arrangements Functional overview The P115 relay offers a wide variety of protection functions The protection features are summarized below PROTECTION FUNCTIONS OVERVIEW Three non directional overcurrent stages are provided for each phase The first gt and the second stage gt gt may be set to Inverse Definite Minimum Time IDMT or D
71. 3 screw For screened twisted pair cable distance to be bridged multi endpoint link max 100 m Isolation to SELV level P115 EN TD A41 TD 2 1 8 Ratings AC Measuring Inputs Nominal frequency of fundamental harmonic fn 50 to 60 Hz Operating range of fundamental harmonic 40 to 70 Hz Connection refer to section 12 of P115 Installation chapter P115 EN IN Phase current Nominal current In 1 or 5 A ordering option RMS measurement in range 40 Hz 1 kHz Nominal burden per phase Inz1A 2 5 VA at In In 5A lt 3 VAat In Thermal withstand Continuous 3 In for 10 s 30 In for 1 s 100 In Earth fault current Nominal current len 1 or 5 A ordering option RMS measurement in range 40 Hz 70 Hz Nominal burden Inz1A lt 2 5 VA len In 5A lt 3 len Thermal withstand Continuous 3 len for 10 s 30 len for 1 s 100 len Minimum level of current required for relay powering Phase current lt 0 2In approx one phase 0 17 In two phases 0 1 three phases 0 06 In Earth fault current lt 0 2 len approx 0 17 len Note depends on connection to the terminals the earth fault input supplies P115 connection terminals 7 and 9 or does not supply P115 connection terminals 8 and 9 refer to Installation chapter P115 EN IN Note if the sum of the currents which power the P115 is below 0 5In example of sum equal to 0 5In la 0 25In Ib 0 25In Ic IN Olen t
72. 4 RL3 RL2 RL1 Any Trip pulse 0001 0 1 0 1 0 1 0 1 1 Any Trip is high if either Protection Trip see above Operation Trip via the communication port or Operation Trip from the front panel is high when the tP time delay tOpen pulse duration set in GLOBAL SETTINGS CIRCUIT BREAKER tOpen pulse min elapses Default Setting 0001 means that RL4 0 output RL4 is not configured to the Any Trip function RL3 0 output RL3 is not configured to the Any Trip function RL2 0 output RL2 is not configured to the Any Trip function RL1 1 output RL1 is configured to the Any Trip function Note The Low Energy Tripping Coil output and Flag Indicator output is not connected with this function Description of bits FI RL4 RL3 RL2 RL1 FI RL4 RL3 RL2 RL1 Alarm 00000 0 1 0 1 0 1 0 1 0 1 1 Alarm function is high if any protection element configured Enable Alarm is high Current based protection elements and external protection elements AUX1 2 Default Setting 00000 means that Fl 0 output for Flag Indicator is not configured to Alarm function RL4 0 output RL4 is not configured to Alarm function RL3 0 output RL3 is not configured to Alarm function RL2 0 output RL2 is not configured to Alarm function RL1 0 output RL1 is not configured to Alarm function Note The Low Energy Tripping Coil output is n
73. 5 200 bits s Data bit 8 Stop bit 1 Parity None Rear Communications Port EIA RS 485 signal levels two wire Connections located on general purpose block M3 screw For screened twisted pair cable distance to be bridged multi endpoint link max 100 m For Modbus RTU or IEC 103 protocol Isolation to SELV level Installation P115 EN IN B41 MiCOM P115 IN 12 7 18 T P115 CASE DIMENSIONS xii 118 q 2 2 Figure 1 Dimensions P115 wall mounting case Installation P115 EN IN B41 IN 12 8 18 MiCOM P115 Figure 2 Dimensions P115 flush mounting case Installation P115 EN IN B41 MiCOM P115 IN 12 9 18 8 EXTERNAL CONNECTION DIAGRAMS NOTE The current leads should be connected exactly as shown on Figures 4 and 5 Binary inputs Binary output Binary output Optional Binary output Optional Binary output Flag indicator 24 10 01Ws Optional Low Energy Trip Coil 24V 10 1Ws or 12V 0 02Ws Optional USB T RS 485 P0807ENb Figure3 Typical 3 phase CTs connection Installation IN 12 10 18 P115 EN IN B41 MiCOM P115 Phase to phase voltage from a substation auxiliary transformer or from VT input Binary output JU YA Binary output Optional
74. 5 EN CT A41 MiCOM P115 CODE DESCRIPTION F19 Unsigned integer Baud rate value 0 4800 baud 1 9600 baud 2 19200 baud 3 38400 baud 4 57600 baud 5 115200 baud F20 Unsigned integer Parity 0 NONE 1 EVEN 2 ODD F22 Unsigned integer Stop 0 1 stop 1 2 stop F23 Unsigned integer 0 1A 1 5A F24 Unsigned integer Logical output status bit 0 logic output RL1 bit 1 logic output RL2 bit 2 logic output RL3 bit 3 logic output RL4 bit 4 15 reserved F25 Unsigned integer Logical LED status bit 0 Healthy bit 1 Trip bit 2 LED3 bit 3 LED4 bit 4 LED5 bit 5 LED6 bit 6 LED7 bit 7 LED8 bit 8 15 reserved F26 Unsigned integer Logical heathy status bit 0 to 3 reserved bit 4 Healthy bit10 15 reserved F27 Unsigned Integer F28 Unsigned integer Protection start status bit 0 Any Start bit 1 starting in phase bit 2 starting in phase B bit 3 starting in phase C bit 4 starting in N bit 5 I gt bit 6 gt gt bit 7 1 gt gt gt bit 8 IN bit 9 IN gt gt bit 10 reserved bit 11 lasym gt bit 12 AUX1 bit 13 AUX2 bit 14 CB Fail bit 15 CB ext Communication Database P115 EN CT A41 MiCOM P115 CT 13 29 40 CODE DESCRIPTION F29 Unsigned integer Protection trip status bit 0 Any Trip bit 1 Trip in phase A bit 2 Trip in phase B bit 3 Trip in phase C
75. 6 17 N C terminals 16 18 is configured to Protection Trip without latching of output output RL2 N O 19 20 N C terminals 19 21 is not configured output RL3 N O terminals 22 23 optional is not configured output RL4 N O 24 25 terminals optional is not configured To change the output configuration refer to section 1 2 3 of chapter P115 EN ST Settings The output connection diagram is shown in section 8 of chapter P115 EN IN Installation Binary inputs The P115 has 2 binary inputs L1 terminals 13 15 and L2 terminals 14 15 The P115 is delivered with the following default factory settings for inputs input is not configured input L2 is not configured To change input configuration refer to section 1 2 3 of chapter P115 EN ST Settings The input connection diagram is shown in section 8 of chapter P115 EN IN Installation Introduction to the user interfaces and settings options The relay has a USB user interface for S1 software By using this interface it is possible to download the setting values last 5 fault records and make a full configuration of P115 NOTE After connection to the USB port the Healthy LED is lit If the LED is not lit refer to chapter P115 EN TS Troubleshooting The USB port integrates electronic boards only to allow communications with the P115 via the HMI RS485 USB interfaces Changing parameters via the front panel Changing of all parameters is password p
76. 9 Communication Database P115 EN CT A41 CT 13 22 40 MiCOM P115 2 4 10 Mapping access characteristics e Description of accessible addresses in reading of words function 03 and 04 PAGE 00h PAGE 01h PAGE 02h 0000h to 0054h 0100h to 0184h 0200h to 02FAh PAGE 03h 0300h to 03F6h e Definition of accessible addresses in writing of 1 word function 06 PAGE 01h PAGE 02h PAGE 03h 0100h to 0184h 0200h to 02 0300h to OSFAh e Definition of accessible addresses in writing of n words function 16 PAGE 01h PAGE 02h PAGE 03h 0100h to 0184h 0200h to 02FAh 0300h to OSFAh PAGE 08h 0800h to 0803h e Definition of accessible addresses in reading of bits function 01 and 02 Not available e Definition of accessible addresses in writing of 1 bit function 05 WARNING THE BITS NUMBER MUST NOT BE HIGHER THAN 16 Communication Database P115 EN CT A41 MiCOM P115 CT 13 23 40 2 4 11 Page 35h addresses 3500h to 354Ah event record data 9 words Word n 1 Event meaning Word n 2 MODBUS associated value Word n 3 MODBUS address Word n 4 Reserved Words n 5 amp 6 amp 7 amp 8 Event date is Inverted IEC 870 5 4 CP56Time2a See format Page 8h Wordn 9 Acknowledge O event non acknowledged 12 event acknowledged Meaning of the event No event MODBUS address Remote amp front panel closing 0400h bit 15 Remote amp front panel tripping 0400h bit 7 Delatch outputs 0400h
77. 9 Hardware Suffix A Software Version 1D Connection Diagrams 10P11504 P115 EN IN B41 Installation MiCOM P115 Installation P115 EN IN B41 MiCOM P115 IN 12 1 18 CONTENTS 1 RECEIPT OF RELAYS 3 2 HANDLING OF ELECTRONIC EQUIPMENT 3 3 STORAGE 4 4 UNPACKING 4 5 RELAY MOUNTING 4 6 RELAY WIRING 5 6 1 Terminal block connections 5 6 2 USB port 5 6 3 Rear Communications Port 6 T P115 CASE DIMENSIONS 7 8 EXTERNAL CONNECTION DIAGRAMS 9 9 APPLICATION CONNECTION DIAGRAMS 12 9 1 Tripping the CB using energy from a tripping transfomer 12 9 2 Tripping CB using energy provided by an external capacitor unit 12 FIGURES Figure 1 Dimensions P115 wall mounting case 7 Figure 2 Dimensions P115 flush mounting case 8 Figure 3 Typical 3 phase CTs connection 9 Figure 4 Typical 3 phase CTs Core balanced CT connection 10 Figure 5 Typical 2 phase CTs Core balanced CT connection 11 Figure 6 Connection example for a P115 powered by a WA 25 and with a 4 pole connection A B C N 13 Figure 7 Connection example for a P115 powered by a WA 25 O and with a 3 pole connection A B C 14 Figure 8 Connection example for a P115 powered by a WA 25 and with a 2 pole connection A C 15 Figure 9 Connection example for a P115 powered by an E124 and with a 4 pole connection A B C N 16 Figure 10 Connection example for a P115 powered by an E124 and with a 4 pole connection A B C N 17 Installation P115 EN IN B41 IN 12 2 18 MiCOM P115
78. AUX1 12 Blocking AUX2 13 Blocking CBF 14 AUX1 15 AUX2 16 CBF ext 17 CB Status 52A 18 CB Status 52B 19 CB not Healthy 20 Setting Group 2 P115 EN CM A41 Commissioning 8 26 32 MiCOM P115 LEDs CONFIGURATION G1 2 22 LED3 LED4 LED5 LED6 LED7 LED8 1 Latched LEDs 2 Protection Trip 3 Alarm 4 Start I gt 5 Start 1 gt gt 6 Start 1 gt gt gt 7 Start IN 8 Start IN gt gt 9 Start gt 10 Start AUX1 11 Start AUX2 12 gt 13 tI gt gt 14 tI gt gt gt 15 tIN gt 16 tIN gt gt 17 tlasym gt 18 CB Fail 19 CB ext 20 tAUX1 21 tAUX2 22 CB not Healthy 23 Setting Group 1 24 Start Phase A 25 Start Phase B 26 Start Phase C 27 Start Earth Commissioning P115 EN CM A41 MiCOM P115 CM 8 27 32 OVERCURRENT G2 SETTING GROUP 2 PROTECTION G2PHASE O C G2 Settings 0 Disabled 1 1 I 1 Trip L 2 Alarm L 2 I gt Threshold In 3 Delay Type I gt 4 tI gt TMS TD S 5 Reset Delay Type I gt 6 DMT tReset I gt S 0 Disabled I 7 gt gt 1 Trip O 2 Alarm 8 gt gt Threshold In 9 Delay Type gt gt 10 tI gt gt TMS TD S 11 Reset Delay Type gt gt 12 DMT tReset I gt gt S 0 Disabled 13 gt gt gt 1 Trip 2 Alarm 14 gt gt gt Threshold In 15
79. CD display LEDs and RS485 are switched back on Depending on the N connection setting the earth current is included in the above sum O terminals 7 9 or not 1 terminals 8 9 In a typical application every type of fault with current values greater than 0 25 gives sum greater than 0 5In phase to phase or phase to earth fault Note if the energy level is below 0 5In RL2 RL4 are not energized either but if they are set as latching when the P115 is powered again the latched RL2 RL3 and RL4 relays will remain energized until they are reset The same applies to latched LEDs Settings P115 EN ST A41 MiCOM P115 ST 4 27 32 3 4 CIRCUIT BREAKER Setting Range Menu Text Default Setting Step Size Min Max tOpen Pulse min 0 5s 0 01 s 10s 0 01 s Defines the duration of the trip pulse tClose Pulse min 0 5s 0 01 s 5s 0 01 s Defines the duration of the close pulse tP pulse 5760 mn 4 days 1 mn 65000 mn 1 mn Defines the duration of the trip pulse This pulse can be used for longer signaling of trips Note E g RL4 configured to this function can be used to switch on an auxiliary voltage supply after tripping for a fixed period for example four days Thus ensuring communication and signaling facilities After the fixed period Auxiliary Voltage can be disconnected from the P115 s terminals automatically to save a substation battery CB not Healthy 16s 1s 200 1
80. Cc TD 0 5 TD 1 0 TD 0 2 TD 2 Reset Characteristic IEEE US IEC The IEEE US IEC curves may have an inverse time reset characteristic or instantaneous reset The following equation can used to calculate the inverse reset time for IEEE US IEC curves IEC tr reset time TMS 1 IEEE US tr reset time TD 1 M where TD Time dial setting for IEEE US curves s TMS Time multiplier setting for IEC curves s Is Current threshold setting A M tr Constant P115 EN OP B41 Operation OP 5 10 12 MiCOM P115 Type of Curve Standard tr Standard Inverse Time Sl IEC 12 1 Very Inverse Time IEC 43 2 Extremely Inverse Time El IEC 80 Long Time Inverse LTI UK 0 Short Time Inverse STI UK 0 Rectifier Rect UK 0 Moderately Inverse Time MI IEEE 4 9 Very Inverse Time VI IEEE 21 6 Extremely Inverse Time El IEEE 29 1 Time Inverse CO8 US 5 95 Short Time Inverse CO2 US 2 261 RI curve 2 2 The RI curve electromechanical has been included in the first stage characteristic setting options for phase overcurrent and earth fault protections The curve is represented by the following equation 1 Rl Inverse Time t 5 0339 7779 Inverse Time t 5 RENE 0 339 0 236 Earth fault protection The Earth fault element operates from a measured earth
81. Diagrams 10P11504 P115 EN OP B41 Operation MiCOM P115 Operation P115 EN OP B41 MiCOM P115 OP 5 1 12 CONTENTS 1 HARDWARE OPERATION 3 2 OPERATION OF INDIVIDUAL PROTECTION FUNCTIONS 5 2 1 Overcurrent protection 2 2 Earth fault protection 10 2 3 Unbalance protection 11 2 4 External Trip via Opto Input 11 2 5 Blocked overcurrent scheme logic 11 2 6 Reset of latched LEDs and outputs 11 2 7 Circuit Breaker Failure Function CBF 11 P115 EN OP B41 Operation OP 5 2 12 MiCOM P115 Operation P115 EN OP B41 MiCOM P115 OP 5 3 12 1 HARDWARE OPERATION The P115 is supplied from power system CTs or and from auxiliary voltage supply terminals 11 12 In case of loss of auxiliary voltage on the 11 12 terminals the operation of the P115 requires a minimum current flowing in one of the three phases or earth fault input 7 9 terminals The minimum current required for operation is 2096 of the nominal current of the relay Technical Data Section P115 EN TD The energy taken from the current and or from auxiliary voltage supply is used to charge up the integrated capacitors trip outputs and relay outputs flag indicator If any protection function trips the energy is provided to the 29 30 CB coil output and 27 28 flag indicator output terminals The output signal is a pulse the repetition of which is dependent on the trip coil s impedance and on the current level If the current in one of the three phases or at
82. I O configuration Iasym Threshold 0 2 x In 0 08 x In 4x In 0 01 x In Pick up setting for the asymmetry overcurrent element tlasym 10s 0s 200 s 0 01 s Setting for the operating time delay for the asymmetry overcurrent element Settings P115 EN ST A41 MiCOM P115 ST 4 9 32 2 1 4 CB Fail 50BF This function consists of a circuit breaker fail function that can be initiated by e Current based protection elements e External protection element CBF ext For current based protection the reset condition is based on undercurrent operation to determine whether the CB has opened It is common practice to use low set undercurrent elements in protection relays to indicate that circuit breaker poles have interrupted the fault or load current as required Setting Range Menu Text Default Setting Step Size Min Max CBF Disabled Disabled Enable Trip Enable Alarm Setting to enable or disable the circuit breaker supervision function CB Fail Time tBF 0 2 05 10s 0 01 s Setting for the circuit breaker fail timer stage for which the initiating condition must be valid I Threshold CBF 0 1 x In 0 05 x In 4 x In 0 01 x In Setting that determines the circuit breaker fail timer reset current for overcurrent based protection circuit breaker fail initiation IN Threshold CBF 0 1 x Ien 0 01 x Ien 2 x Ien 0 01 x Ien Setting that determines the cir
83. INNT 1 Green Healthy LED 2 Red Trip LED Any trip of protection 3 4 5 6 7 8 Red programmable LED 9 16 character by 2 line alohanumeric liquid crystal display LCD 10 Aclear key 11 read key 12 4 arrow keys an enter key 13 USB port for local connection Figure 1 P115 front panel P115 EN GS A41 Getting Started GS 3 6 24 1 3 MiCOM P115 14 17 14 3 terminal block Auxiliary voltage supply Binary inputs Binary outputs Flag indicator energy output Low energy trip coil 15 2 terminal block RS485 16 1 terminal block phase and e f current inputs 17 PCT Protective Earth Conductor terminal Figure 2 Rear view of the P115 Relay connection and power up The relay can be powered from the following sources Current input phase L1 A Current input phase L2 B Current input phase L3 C E F Current input N depends on connection on the terminals Auxiliary voltage Vx terminals 11 12 USB port some electronic boards only to ensure HMI USB and or RS485 communication only Getting Started P115 EN GS A41 MiCOM P115 GS 3 7 24 1 3 1 1 3 2 1 3 3 1 3 4 Auxiliary Supply Voltage Vx connection Before applying the auxiliary supply voltage to the relay check that the rated nominal ac or dc voltage is appropriate for the application and that it will be connected to the correct terminals 11 amp 12
84. K At the saturation voltage Vs2 we will have 1096 accuracy on the current In Application Notes P115 EN AP A41 MiCOM P115 AP 6 15 22 Knee point P1 Im P0797ENa Figure 6 Definition of the magnetizing curve s knee point With the materials generally used to manufacture current transformers we have Vk corresponds to 1 4 tesla Vs1 corresponds to 1 6 tesla Vs2 corresponds to 1 9 tesla P115 EN 41 Application Notes AP 6 16 22 MiCOM P115 3 1 2 Equivalent diagram of a current transformer The equivalent diagram of a CT is indicated below e CT ratio n2 n1 e Lm magnetization self induction coil of the CT e Im magnetizing current e Ii primary current e I2 secondary current 11 n2 n1 e Is secondary current passing through the load resistance I m e Rct secondary winding resistance of CT ohms n2 n1 P0798ENa Figure 7 Equivalent diagram of a current transformer The magnetizing current Im of the transformer depends on the voltage generated at the secondary windings of the transformer It is this current that introduces an error signal into the measurement If the CT were perfect the magnetizing current would be null How to calculate the rated burden in VA of a CT based on its characteristic quantities Vk Rct The saturation voltage is derived using the following formula V
85. MiCOM P115 Dual CT Powered Overcurrent Relay P115 EN M B41 Software Version 1D Hardware Suffix A Technical Manual Schneider Electric Note The technical manual for this device gives instructions for its installation commissioning and operation However the manual cannot cover all conceivable circumstances or include detailed information on all topics In the event of questions or specific problems do not take any action without proper authorization Contact the appropriate Schneider Electric technical sales office and request the necessary information Any agreements commitments and legal relationships and any obligations on the part of Schneider Electric including settlements of warranties result solely from the applicable purchase contract which is not affected by the contents of the technical manual This device MUST NOT be modified If any modification is made without the express permission of Schneider Electric it will invalidate the warranty and may render the product unsafe The Schneider Electric logo and any alternative version thereof are trademarks and service marks of Schneider Electric MiCOM is a registered trademark of Schneider Electric All trade names or trademarks mentioned herein whether registered or not are the property of their owners This manual is provided for informational use only and is subject to change without notice 2011 Schneider Electric All rights reserved CONTENTS Sect
86. OM P115 Asymmetry Overcurrent lasym gt Function lasym gt Current Set 0 08 to 4 In steps 0 01 In DT time delay 0 025 to 200 s steps 0 01 s Circuit Breaker Fail CB Fail Timer 0 00 to10 00 s steps 0 01 s I lt Current Set 0 05 to 4 In steps 0 01 In IN Current Set 0 05 to 4 len steps 0 01 len CBF Prot Reset I and IN Measurements List Measurements IA IB IC IN P115 EN TD A41 TD 2 7 8 P115 EN TD A41 TD 2 8 8 Technical Data MiCOM P115 Getting Started P115 EN GS A41 MiCOM P115 GETTING STARTED Date 20 February 2009 Hardware Suffix A Software Version 1D Connection Diagrams 10P11504 P115 EN GS A41 Getting Started MiCOM P115 Getting Started MiCOM P115 CONTENTS 1 GETTING STARTED 1 1 User interfaces and menu structure 1 2 Introduction to the relay 1 2 1 Front panel 1 3 Relay connection and power up 1 3 1 Auxiliary Supply Voltage Vx connection 1 3 2 Current inputs 1 3 3 Tripping coil output ordering option 1 3 4 Flag indicator output 1 3 5 Earthing 1 3 6 Output contacts 1 3 7 Binary inputs 1 4 Introduction to the user interfaces and settings options 1 5 Changing parameters via the front panel 1 5 1 SETTING CHANGE MODE 1 6 P115 Menu description 1 6 1 Headers 1 6 2 ALARM STATUS column 1 6 3 RECORDS column 1 6 4 SETTTING GROUP columns 1 6 5 GLOBAL SETTINGS column 1 6 6 COMMISIONING column 1 6 7 SETTING CHANGE MODE column 1 6 8 Menu Map
87. P115 EN GS A41 GS 3 1 24 10 13 13 13 15 16 17 17 18 19 P115 EN GS A41 GS 3 2 24 FIGURES Figure 1 P115 front panel Figure 2 Rear view of the P115 Figure 3 Column headers Figure 4 ALARM column Figure 5 RECORDS column Figure 6 SETTING GROUP 1 columns Figure 7 GLOBAL SETTINGS column Figure 8 COMMISSIONING column Figure 9 SETTING CHANGE MODE column Figure 10 P115 Menu Map Page 1 Figure 11 P115 Menu Map Page 2 Figure 12 P115 Menu Map Page 3 Figure 13 P115 Menu Map Page 4 Figure 14 P115 Menu Map Page 5 Figure 15 P115 Menu Map Page 6 Getting Started MiCOM P115 13 14 15 16 17 17 18 19 20 21 22 23 24 Getting Started P115 EN GS A41 MiCOM P115 GS 3 3 24 1 1 1 1 2 1 2 1 1 2 1 1 GETTING STARTED Before carrying out any work on the equipment the user should be familiar with the contents of the Safety Guide SFTY 4L M E11 or later issue OR the safety and technical data section of the technical manual and also the ratings on the equipment rating label For safety reasons no work must be carried out on the P115 until all power sources to the unit have been disconnected User interfaces and menu structure The settings and functions of the MiCOM protection relay can be accessed both from the front panel keypad and LCD and via the front and rear communication ports Information on each of these methods is given in this section to describe how to sta
88. S This column contains menu cells to show some of the P115 s parameters Menu Text Default Setting Available Settings Description P115 Read only This cell is used to show the type of relay Software Version 1 D Read only This cell is used to show the software version firmware Hardware Version 11 Read only This cell is used to show the hardware version ordered Active setting group Group 1 Read only This cell is used to show the active setting group Date 01 01 08 00 00 00 99 99 99 This cell is used to set the date of the internal clock Time 00 00 00 00 00 00 23 59 59 This cell is used to set the time of the internal clock NOTES 1 A back up clock capacitor is charged from an auxiliary voltage supply terminals 11 12 only The capacitor s energy allows storage of real time information for up to 2 days When the back up capacitor is completely discharged it takes less than 10 minutes to recharge it completely 2 If the clock has no real time information the back up capacitor is recharged and the current exceeds the minimum current required for operation the real time is set to 01 01 2008 00 00 00 Therefore events are dated with reference to this start time value P115 EN ST A41 ST 4 32 32 Settings MiCOM P115 Operation P115 EN OP B41 MiCOM P115 OPERATION Date 20 February 2009 Hardware Suffix A Software Version 1D Connection
89. SUREMENT column of the menu or via S1 S amp R Modbus Measurement Viewer connected to P115 via USB port Refer to the PC software user manual for details If the use of MICOM S1 is not possible it is necessary to test the protection stages to measure the accuracy of analogue inputs P115 EN CM A41 Commissioning CM 8 12 32 MiCOM P115 Measuring accuracy of the relay Reference Conditions Sinusoidal signals with nominal frequency fn total harmonic distortion lt 2 96 ambient temperature 20 and nominal auxiliary voltage Vx Deviation relative to the relevant nominal values under reference conditions Operating Data For current up to 3 In len Phase and earth current 3 Asymmetry current 5 Fault Data Phase and earth current For current lt 3 In len 5 For current gt 3 In len 5 of measured current value However an additional allowance must be made for the accuracy of the test equipment being used Commissioning P115 EN CM A41 MiCOM P115 8 13 32 5 5 1 5 2 5 2 1 5 2 1 1 SETTING CHECKS The setting checks ensure that all of the application specific relay settings i e the relay s functions for the particular installation have been correctly applied to the relay NOTE The trip circuit should remain isolated during these checks to prevent accidental operation of the associated circuit breaker Apply application specific settings There are two methods of a
90. Safety Section Page 3 8 1 INTRODUCTION This guide and the relevant equipment documentation provide full information on safe handling commissioning and testing of this equipment This Safety Guide also includes descriptions of equipment label markings Documentation for equipment ordered from Schneider Electric is despatched separately from manufactured goods and may not be received at the same time Therefore this guide is provided to ensure that printed information which may be present on the equipment is fully understood by the recipient The technical data in this safety guide is typical only see the technical data section of the relevant product publication s for data specific to a particular equipment Before carrying out any work on the equipment the user should be familiar with the contents of this Safety Guide and the ratings on the equipment s rating label Reference should be made to the external connection diagram before the equipment is installed commissioned or serviced Language specific self adhesive User Interface labels are provided in a bag for some equipment 2 HEALTH AND SAFETY The information in the Safety Section of the equipment documentation is intended to ensure that equipment is properly installed and handled in order to maintain it in a safe condition It is assumed that everyone who will be associated with the equipment will be familiar with the contents of that Safety Section or this Safety Guide
91. TE While the LEDs are flashing SETTING CHANGE MODE there can be a mismatch between the settings displayed on the front panel and those used by the operating system The password protection of the relay comprises three levels e Administrator Without limits e Protection setting Protection only e Control only Test control Administrator rights all the menu settings may be changed Protection setting rights it is possible to change settings in the PROTECTION column CB control and reset of the counters are also possible Control rights CB control from the front panel only For each level the password consists of 5 digits 0 to 9 The default password is 00000 If the first password is different this means that the Administrator password has been changed The Protection setting password is still 00000 Therefore to protect settings against unauthorized access it is necessary to change the Protection setting password by first entering 00000 then a new value The Control password is still 00000 Therefore if it is necessary to change it first enter 00000 then the new value Control right of the password NOTES 1 If the Protection setting rights have not been changed or if it has been set to the default value 00000 it is possible to change all the settings in the PROTECTION column reset the counters and control the CB without entering a password simply by pressing the ENTER key This makes it possible to
92. TING GROUP 2 PROTECTION G2 PHASE G2 50 51 E GND FAULT G2 50N 51N ASYMMETRY G2 46 CB FAIL G2 50BF AUX TIMERS G2 OUTPUT RELAY CONFIGURATION G2 INPUTS CONFIGURATION G2 LEDS CONFIGURATION G2 GLOBAL SETTINGS LOC SETTING GROUP SELECT CT RATIO CIRCUIT BREAKER COMMUNICATION COMMISIONING SETTING CHANGE MODE OP PARAMETERS MEASUREMENTS Settings P115 EN ST A41 MiCOM P115 ST 4 5 32 2 SETTINGS 2 1 Protection settings 2 1 1 Phase O C 50 51 The overcurrent protection included in the P115 relay provides three stage non directional three phase overcurrent protection with independent time delay characteristics All overcurrent settings apply to all of the three phases but are independent for each of the three stages The first two overcurrent stages have time delayed characteristics which are selectable between inverse definite minimum time IDMT or definite time DMT The third stage has definite time characteristics only Setting Range Default Setting Step Size Min Max I gt Disabled Disabled Enable Trip Enable Alarm Setting for Disable or enable of protection element It is possible to enable for tripping CB Enable Trip or enable for an Alarm signal only Enable Alarm If the protection element is Enable Trip configured it means that it is set to the General Trip Command Protect Trip which can be used in I O conf
93. UT Connection diagrams are given in the Installation chapter P115 EN IN of this manual Connection to 3 phase CTs core balanced CT Core balanced CT connected to the measurement earth current input terminals 8 9 This application can be used in systems with a small value of e f current isolated or with Petersen coil To ensure that the P115 is powered during earth fault conditions the auxiliary voltage supply should be connected to terminals 11 and 12 Vx Typically phase to phase ac voltage from substation auxiliary transformer or VT is applied For the above types of system the phase to phase voltage does not disappear during earth faults For phase to phase faults P115 is supplied from the CTs only Refer to Application chapter P115 EN AP Figure 4 Advantage In this case a typical core balanced CT can be used The earth fault current value has no influence on the CB tripping Disadvantage Additional Vx powering from an ac voltage source is required to trip in case of an e f Core balanced CT connected to the self powered earth current input terminals 7 9 Advantage This connection is advantageous when the transformation ratio of the core CT is less than that of the phase CTs greater sensitivity demand on the earth range This enables the fault at the earth current input of the protection to be perceived even if this fault is not of sufficient level 0 2 In to supply the protection via the phase curren
94. acts rest position Rear communications port This test should only be performed where the relay is to be accessed from a remote location and will vary depending on the communications standard adopted It is not the intention of the test to verify the operation of the complete system from the relay to the remote location just the relay s rear communications port and any protocol converter necessary IEC60870 5 103 VDEW communications IEC60870 5 103 VDEW communication systems are designed to have a local Master Station and this should be used to verify that the relay s EIA RS 485 port is working The relay address and baud rate settings for EIA RS 485 can be set by using local communication via the USB port setting software or via the relay s front panel Default Factory Setting Baud Rate 19 2bps Parity No parity Stop Bits one stop bit Data Bits 8 fixed After that ensure that the relay address and baud rate settings in the application software are set the same as was set via USB port Check that using the Master Station communications with the relay can be established Commissioning P115 EN CM A41 MiCOM P115 8 11 32 4 2 4 2 4 2 5 4 2 6 MODBUS communications Connect a portable PC running the appropriate MODBUS Master Station software to the relay s first rear EIA RS 485 port via an EIA RS 485 to EIA RS 232 interface converter The terminal numbers for the relays EIA RS 485 port are up
95. also provide both secure and reliable operation The most common fault conditions on both MV transformers and cables are short circuit faults Such faults may occur between phases but will most often involve one or more phases becoming short circuit to earth Faults of this nature require the fastest possible fault clearance times but at the same time allowing suitable co ordination with other downstream protection devices The effect of fault resistance is more pronounced on lower voltage systems resulting in potentially lower fault currents which in turn increases the difficulty in the detection of high resistance faults In addition many distribution systems use earthing arrangements designed to limit the passage of earth fault current Methods such as resistance earthing Petersen Coil earthing or insulated systems make the detection of earth faults difficult Special protection requirements are often used to overcome these problems The CT powered P115 is used in MV switchboards with circuit breakers to protect distribution transformers feeders and lines in local and industrial power systems The small compact case allows this relay to be used in these situations Due to the dual powered function P115 can be used as back up protection of HV MV transformers Before carrying out any work on the equipment the user should be familiar with the contents of the Safety Guide SFTY 4L M E11 or later issue OR the safety and technical data sec
96. and so require less maintenance than earlier designs of relay Most problems will set off an alarm so that remedial action can be taken However some periodic tests should be carried out to ensure that the relay is functioning correctly and that the external wiring is intact Maintenance checks Although some functionality checks can be performed from a remote location by utilizing the communications ability of the relays these are predominantly restricted to checking that the relay is measuring the applied currents accurately Therefore it is recommended that maintenance checks are performed locally i e at the substation itself Before carrying out any work on the equipment the user should be familiar with the contents of the Safety Guide SFTY 4L M E11 or later issue OR the safety and technical data section of the technical manual and also the ratings on the equipment rating label For safety reasons no work must be carried out on the P115 until all power sources to the unit have been disconnected Binary Inputs Binary inputs can be checked to ensure that the relay responds to its energization by repeating the commissioning test detailed in section 4 2 2 of the Commissioning chapter P115 EN CM Outputs The output relays can be checked to ensure that they operate by repeating the commissioning test detailed in section 5 2 1 4 of the Commissioning chapter P115 EN CM Measurement accuracy If the power system is energized th
97. ano 0000 82 000000 lt lt I3 00000 575918 76918 32235 We TZ 3eseu 2 SESS IZ pal Auy 000000 lt 000000 00 Tread 92 00 0000 000000 lt I 000000 dial 575918 575918 IZ burxoorg 3eseu 17437 ATIT TIZEFAL 23093014 000000 lt lt NI3 000000 draL 00 zxnv 00 sandano 000000 zxnva 0000 ZXOV 0000 dano 57591 8 575918 23993014 2 Tus pexoora IZE 12815 IZE 000000 NI 000000 00 TXAW 00 000000 Ixnva3 0000 TXAW 0000 sandano 57691 8 575918 tz esaeAeu 2 31945 a 10 Page 3 Irmware P115 Menu Map Fi Figure 12 P115 EN GS A41 Getting Started GS 3 22 24 MiCOM P115 Figure 13 P115 Menu Map Firmware 1D Page 4 P115 EN GS A41 Getting Started GS 3 23 24 MiCOM P115 000000 lt lt lt 576918 000000 qazes 000000 lt lt 575918 11945 575918 000000 2 eseua 000000 lt I 55918 3aeas 57691 8 000000 eseua 000000 exnw 0000
98. arth overcurrent protection set to trip has P115 EN ST A41 Settings ST 4 24 32 EG 3 GLOBAL SETTINGS 3 1 LOC een Default Setting Available Settings 0 ENGLSH 1 GERMAN Language 0 ENGLISH 4 SPANISH 5 REGIONAL This cell is used to change the language of the menu The REGIONAL language is used if it is necessary to change labels in the P115 s menus For example the CB Fail label instead of the AUX7 label To change labels in the P115 s menu the Menu Creator Software is used All available P115 language versions can be used as a template for the Regional menu 0 Meas In Default Display 0 Meas In 1 Meas A 2 Control This cell is used to change the default display window 0 Measurements referred to In 1 Measurements referred to Amps 2 CB control window for control of CB close and trip command 0 No LEDs Reset by Start 0 No 1 Yes This cell is used to change the resetting mode of latched LEDs 0 No Reset of latched LEDs via manual reset only C clear key input USB RS485 1 Yes Reset of latched LEDs via any protection start set for CB tripping or manual reset 0 Self Reset 1 Manual Reset Alarm Display 0 Self Reset This cell is used to change the resetting mode of the Alarm indication cell ALARM STATUS 0 Self Reset This option means that if an alarm signal has disappeared no information is available in the ALARM STATUS c
99. asurements P115 EN MR A41 MR 7 1 4 P115 EN MR A41 Measurements and Recording MR 7 2 4 MiCOM P115 Measurements and Recording P115 EN MR A41 MiCOM P115 MR 7 3 4 1 MEASUREMENTS AND RECORDING 1 1 Introduction The P115 is equipped with integral fault recording facilities suitable for analysis of complex system disturbances Fault records can be read out by setting software S1 via the USB port accessible on the P115 front panel The USB port offers a communications facility to the P115 Communications can be established via the USB port even if the P115 is supplied neither by the CT nor by the auxiliary voltage Access to the USB port is protected by means of a plastic cover 1 2 Event records The relay records and time tags up to 100 events and stores them in non volatile FRAM memory This enables the system operator to establish the sequence of events that occurred within the relay following a particular power system condition switching sequence etc When the available space is exhausted the oldest event is automatically overwritten by the most recent The real time clock within the relay provides the time tag for each event to a resolution of 1 ms The event records are available for remote viewing via the communications ports RS485 or USB For extraction from a remote source via communications ports refer to the SCADA Communications section P115 EN CT where the procedure is fully explained Types
100. automatic event record acknowledgement on event retrieval a Automatic event record acknowledgement on event retrieval The bit12 of the remote order frame format F38 mapping address 0400h shall be set to 0 On event retrieval this event record is acknowledged b Non automatic event record acknowledgement on event retrieval The bit12 of the remote order frame format F38 mapping address 0400h shall be set to 1 On event retrieval this event record is not acknowledged To acknowledge this event an other remote order shall be sent to the relay The bit 13 of this frame format F38 mapping address 0400h shall be set to 1 Request to retrieve a dedicated event 03h Refer to 00 09h mapping This event request may be answered an error message with the error code EVT EN COURS ECRIT 5 An event is being written into the saved FRAM Note This event retrieval does not acknowledge this event Modbus request definition used to retrieve the fault records Two ways can be followed to retrieve a fault record e Send a request to retrieve the oldest non acknowledge fault record e Send request to retrieve a dedicated fault record Request to retrieve the oldest non acknowledge fault record Note On fault retrieval two possibilities exist regarding the fault record acknowledgement a Automatic fault record acknowledgement on event retrieval b Non automatic fault record acknowledgement on event ret
101. bit 2 Delatch LEDs Delatch outputs and LEDs 0400h bit 3 Clear Fault Recorder 0400h bit 4 Clear Event Recorder bit 7 bit 2 0400h bit 1 bit 3 bit 4 bit 5 0400h bit 5 Setting change 0009h Reserved Reserved Protection disable startus 0011h I 0019h bit 0 gt gt 001Ah bit 0 IN gt IN gt gt bit 0 001Ch bit 0 001Dh bit 0 tl 0019h bit 6 gt gt 001Ah bit 6 tIN gt tN gt gt 001Ch bit 6 001Dh bit 6 tAUX1 001Fh bit 6 52a 0016h bit 5 52b 0016h bit 6 52 52 not defined 0016h bit 8 CB not healthy 0016h bit 10 Start CB Fail bit 6 bit 5 bit 6 0016h bit 7 bit 8 bit 10 0021h bit 0 Communication Database P115 EN CT A41 CT 13 24 40 MiCOM P115 Meaning of the event 27 Change of binary input state F1114 0010h 28 Change of output state F24 0012h 29 gt gt F37N 001Bh bit 0 30 gt gt gt 7 001Bh bit 6 31 lasym F50 TY 001Eh bit 0 32 tlasym gt F50 TY 001Eh bit 6 33 tAUX2 F51 74 0020 bit 6 34 CB Fail F51 74 0021h bit 6 35 Setting Group 1 active F32 0009h bit 0 36 Setting Group 2 active F32 0009h bit 1 37 tl Alarm F37N 0019h bit 4 38 gt gt Alarm F3714 001Ah bit
102. bove Protection Accuracy Note 1 All data below are given for inception of fault from currents above 0 2 In len at least in 1 phase or if the P115 is powered from the Vx auxiliary voltage supply If the pre fault current is below 0 2 In len in all phases and that there is no Vx on terminals 11 12 additional time correction should be taken into account see above 2 Reference Conditions Sinusoidal signals with nominal frequency fa total harmonic distortion lt 2 96 ambient temperature 20 and nominal auxiliary voltage Vx Technical Data MiCOM P115 Three Phase Overcurrent I gt I gt gt i Pick up Setting 5 in the temperature range 20 C to 60 C ii Pick up Setting 7 5 in the temperature range 40 C to 85 C Drop off 0 95 x setting 5 Minimum IDMT level 1 05 x setting 5 IDMT curve 7 5 or 30 ms whichever is greater DT operation 2 or 30 ms whichever is greater DT reset 7 5 or 30 ms whichever is greater Three Phase Overcurrent I gt gt gt i Pick up Setting 5 in the temperature range 20 C to 60 C ii Pick up Setting 7 5 in the temperature range 40 C to 85 C Drop off 0 95 x setting 5 DT operation 2 or 30 ms whichever is greater DT reset 7 5 or 30 ms whichever is greater Earth Fault IN gt i Pick up Setting 5 in the temperature range 20 C to 60 C ii Pick up Setting 7 5 in the temperature range 40 C to 85 C Drop off
103. ced with the recommended type and be installed with the correct polarity to avoid possible damage to the equipment buildings and persons Insulation and dielectric strength testing Insulation testing may leave capacitors charged up to a hazardous voltage At the end of each part of the test the voltage should be gradually reduced to zero to discharge capacitors before the test leads are disconnected Insertion of modules and pcb cards Modules and PCB cards must not be inserted into or withdrawn from the equipment whilst it is energized since this may result in damage Insertion and withdrawal of extender cards Extender cards are available for some equipment If an extender card is used this should not be inserted or withdrawn from the equipment whilst it is energized This is to avoid possible shock or damage hazards Hazardous live voltages may be accessible on the extender card Safety Section AN AN AN AN A Pxxx EN SS G1 1 Page 7 8 External test blocks and test plugs Great care should be taken when using external test blocks and test plugs such as the MMLG MMLB and MiCOM P990 types hazardous voltages may be accessible when using these CT shorting links must be in place before the insertion or removal of MMLB test plugs to avoid potentially lethal voltages Note When a MiCOM P992 Test Plug is inserted into the MiCOM P991 Test Block the secondaries of the line CTs are automatically shorted making t
104. change a chosen parameter by automatically switching the P115 to the SETTING CHANGE MODE the programmable LEDs are flashing This means that even after changing only one parameter it is necessary to switch the P115 back to PROTECTION MODE in order to activate the new settings warm restart 2 If the Control rights password has not been changed or if it has been set to the default value 00000 it is possible to control the CB or choose the older faults in Fault Record column without password protection P115 EN GS A41 Getting Started GS 3 10 24 MiCOM P115 1 5 1 SETTING CHANGE MODE The SETTING CHANGE MODE should be used to change settings Using the SETTING CHANGE MODE ensures that all changed parameters will be applied simultaneously so as to avoid any problems caused by possible setting inconsistencies The SETTING CHANGE MODE makes it possible to change settings while the relay is active without any risk the P115 continues to use the previous settings After exiting the SETTING CHANGE MODE a warm reset of firmware is applied so that all the protection counters are reset NOTE Latched LEDs and outputs are not reset stored values are not cleared during a P115 reset To switch the P115 to SETTING CHANGE MODE navigate to the SETTING CHANGE MODE main header see Figure 9 then press the DOWN key Edit settings Enter PSWD Press ENTEH key Edit settings Enter PSWD 00000 The 0 digit furth
105. chanical relay Another possible situation where the timer hold facility may be used to reduce fault clearance times is where intermittent faults may be experienced An example of this may occur in a plastic insulated cable In this application it is possible that the fault energy melts and reseals the cable insulation thereby extinguishing the fault This process repeats to give a succession of fault current pulses each of increasing duration with reducing intervals between the pulses until the fault becomes permanent When the reset time of the overcurrent relay is instantaneous the relay will be repeatedly reset and unable to trip until the fault becomes permanent By using the Timer Hold facility for IDMT characteristics the relay will integrate the fault current pulses thereby reducing fault clearance time For IDMT it is possible to set the timer hold facility based on the following formulae t IEC reset time TMS QE _ IEEE and US reset time X 1 where me Is I Measured current in A TMS Time setting s Is Current threshold setting A Type of Curve Standard tr SI Standard Inverse Time Characteristic IEC 12 1 VI Very Inverse Time Characteristic IEC 43 2 EI Extremely Inverse Time Characteristic IEC 80 LTI Long Time Inverse Characteristic UK 0 STI Short Time Inverse Characteristic pin 0 Rect Rectifier Characteristic UK 0 MI Medium Inverse Time Charact
106. condary current rating E Gnd CT Primary 1 000 A 1 30k 1 1 Sets the earth fault current transformer input s primary current rating E Gnd CT Primary 5 000 A 5 30k 1 Ien 5A Sets the earth fault current transformer input s primary current rating E Gnd CT Sec 1 000 A N A N A N A 1 Sets the earth fault current transformer input s secondary current rating E Gnd CT Sec 5 000A N A N A N A 5 Sets the earth fault current transformer input s secondary current rating IN connection O terminals 7 9 This cell is used to inform the P115 about the IN connection with or without powering of the P115 The above information is used by the P115 to reduce its energy consumption for low currents if the auxiliary supply is not connected to the 11 12 terminals Reducing its energy consumption allows the P115 to lower its burden on the primary MV CT The minimum current required to power the P115 via the CT is 0 2ln but if the CT s energy is low the P115 switches off its LCD display LEDs and RS485 communications when a fixed energy threshold is reached The remaining functionalities of the P115 remain active inputs event recorder fault recorder counters latching of LEDs and output contacts etc The value used by this low energy threshold is calculated as a sum of the currents which supply the P115 If the sum of the currents exceeds 0 5In for example the sum 0 la 0 25In Ib 0 25In 1 01 IN Olen the L
107. cuit breaker fail timer reset current for earth fault current based protection circuit breaker fail initiation For dynamic range ordering option 0 01 2len where len nominal current for e f input IN Threshold CBF 0 1 x Ien 0 05 x Ien 10 x Ien 0 01 x Ien Setting that determines the circuit breaker fail timer reset current for earth fault current based protection circuit breaker fail initiation For dynamic range ordering option 0 05 10len where len nominal current for e f input IN Threshold CBF 0 1 x Ien 0 05 x Ien 4 x Ien 0 01 x Ien Setting that determines the circuit breaker fail timer reset current for earth fault current based protection circuit breaker fail initiation For dynamic range ordering option 0 2 40len where len nominal current for e f input P115 EN ST A41 ST 4 10 32 2 1 5 Settings MiCOM P115 AUX Timers Setting Range Menu Text Default Setting Step Size Min Max AUX1 2 Disabled Disabled Enable Trip N A Enable Alarm Setting for Disable or enable of AUX1 element It is possible to enable for tripping CB Enable Trip or enable for an Alarm signal only Enable Alarm If the protection element is Enable Trip configured it means that it is set to the General Trip Command Protect Trip which be used in configuration If the protection element is Enable Alarm it means that it is set to the General Alarm
108. d use an NC contact The above function is useful if the P115 is dual powered supplied from the auxiliary voltage supply Description of bits RL4 RL3 RL2 RL1 RL4 RL3 RL2 RL1 Start Phase A 0000 0 1 0 1 0 1 0 1 1 The Start Phase A function is high if the phase overcurrent stage set to trip in phase has started current in phase A above the phase current thresholds P115 EN ST A41 Settings ST 4 16 32 MiCOM P115 Menu Text Default Setting Setting Range Step Size Description of bits RL4 RL3 RL2 RL1 RL4 RL3 RL2 RL1 Start Phase B 0000 0 1 0 1 0 1 0 1 1 The Start Phase B function is high if the phase overcurrent stage set to trip in phase B has started current in phase B above the phase current thresholds Description of bits RL4 RL3 RL2 RL1 RL4 RL3 RL2 RL1 Start Phase C 0000 0 1 0 1 0 1 0 1 1 The Start Phase C function is high if the phase overcurrent stage set to trip in phase C has started current in phase C above the phase current thresholds Description of bits RL4 RL3 RL2 RL1 RL4 RL3 RL2 RL1 Start Earth 0000 0 1 0 1 0 1 0 1 1 The Start Earth function is high if the earth overcurrent element set to trip has started earth current above the earth current thresholds Settings MiCOM P115 2 3 Configuration of the inputs P115 EN ST A41 ST 4 17 32 Binary Input settings define which signa
109. ddress If required an acceptance of the quote must be delivered before going to next stage Send the product to the repair centre Address the shipment to the repair centre specified by your local contact Ensure all items are protected by appropriate packaging anti static bag and foam protection Ensure a copy of the import invoice is attached with the unit being returned Ensure a copy of the RMA form is attached with the unit being returned E mail or fax a copy of the import invoice and airway bill document to your local contact Symbols and Glossary P115 EN SG A41 MiCOM P115 SYMBOLS AND GLOSSARY Date 20 February 2009 Hardware Suffix A Software Version 1D Connection Diagrams 10P11504 P115 EN SG A41 Symbols and Glossary MiCOM P115 Symbols and Glossary P115 EN SG A41 MiCOM P115 SG 11 1 2 Logic Symbols Symbols Explanation gt Greater than Used to indicate an over threshold such as overcurrent current overload C O changeover contact having normally closed and normally open connections Often called a form C contact CB Circuit breaker CT Current transformer Dly Time delay DT Abbreviation of Definite Time An element which always responds with the same constant time delay on operation E F Earth fault Directly equivalent to ground fault FLC Full load current The nominal rated current for the circuit Fit Abb
110. default cofiguration can be changed using 1 setting software USB port The eight LEDs are on the front panel of the relay e The green Healthy LED indicates that the P115 is powered and no internal faults are detected A flashing LED indicates a hardware problem on the P115 e Red LED indicates that the time delay of the protection element set to trip has elapsed e The red LEDs to 8 are programmable to the following signals Protection Trip Trip of any protection element configured to trip Alarm Indicates that the time delay of a protection element configured to alarm has elapsed Start I gt start of the first o c protection stage Start I gt gt start of the second o c protection stage Start I gt gt gt start of the third o c protection stage Start IN gt start of the first e f protection stage Start IN gt gt start of the second e f protection stage Start lasym gt start of the asymmetry protection element Start AUX1 start of AUXT function activated via a binary control input configured to this function Start AUX2 start of AUX2 function activated via a binary control input configured to this function gt time delay of the first o c stage tI gt gt time delay of the second o c stage gt gt gt time delay of the third o c stage tIN time delay of the first e f stage tIN gt gt time delay of the second e f stage gt time delay of
111. definition used to retrieve the fault records IEC60870 5 103 INTERFACE Physical connection and link layer Initialisation Time synchronisation Spontaneous events General interrogation Cyclic measurements Commands Disturbance records Blocking of monitor direction Spontaneous messages managed by MiCOM P115 List of data contained in General Interrogation Processed Commands Relay re initialization Cyclic Messages ASDU9 P115 EN CT A41 MiCOM P115 32 32 32 34 34 34 34 35 35 35 35 35 35 35 37 38 39 39 Communication Database P115 EN CT A41 MiCOM P115 CT 13 3 40 1 INTRODUCTION 1 1 Purpose of this document 1 2 This document describes the characteristics of the different communication protocol of MiCOM P115 relay The available communication protocols of MICOM P115 relay are as follows e MODBUS e IEC 60870 5 103 Glossary Ir Is It currents measured on the concerned phases s t lE residual current measured by earth input 3 1 zero sequence pf soft weight of a word of 16 bits PF heavy weight of a word of 16 bits Communication Database P115 EN CT A41 CT 13 4 40 MiCOM P115 2 2 1 MODBUS PROTOCOL MiCOM P115 relay can communicate by a RS 485 link behind the unit following the MODBUS RTU protocol Technical characteristics of the MODBUS connection Parameters of the MODBUS connection The different parameters of the MODBUS connection are as follows e I
112. e between phase current and average value from 3 phase current The above quantities are used by the protection criteria and by the fault recorder Commissioning P115 EN CM A41 MiCOM P115 COMMISSIONING Date 20 February 2009 Hardware Suffix A Software Version 1D Connection Diagrams 10P11504 P115 EN CM A41 Commissioning MiCOM P115 Commissioning MiCOM P115 CONTENTS 1 INTRODUCTION 2 SETTING FAMILIARIZATION 3 EQUIPMENT REQUIRED FOR COMMISSIONING 3 1 Minimum equipment required 4 PRODUCT CHECKS 4 1 With the relay de energized 4 1 1 Visual inspection 4 1 2 Insulation 4 1 3 External wiring 4 1 4 Auxiliary supply voltage Vx 4 2 With the relay energized 4 2 1 Light emitting diodes LEDs 4 2 2 Binary inputs 4 2 3 Output relays 4 2 4 Rear communications port 4 2 5 USB communications port 4 2 6 Current inputs 5 SETTING CHECKS 5 1 Apply application specific settings 5 2 Demonstrate correct relay operation 5 2 1 Overcurrent protection testing 6 COMMISSIONING TEST RECORD 7 SETTING RECORD P115 EN CM A41 8 1 32 P115 EN CM A41 Commissioning 8 2 32 MiCOM P115 Commissioning P115 EN CM A41 MiCOM P115 8 3 32 1 INTRODUCTION The MiCOM P115 feeder protection relays are fully numerical in design implementing all protection and non protection functions in software The relays employ a high degree of self monitoring The commissioning tests do not need to be a
113. e delayed low set to reduce fault clearance times for MV fault conditions Typically this will be set to approximately 1 3 times the LV fault level so that it will only operate for MV faults A 3096 safety margin is sufficient due to the low transient overreach Transient overreach defines the response of a relay to DC components of fault current and is quoted as a percentage The second requirement for this element is that it should remain inoperative during transformer energization when a large primary current flows for a short period during switch on In most applications the requirement to set the relay above the LV fault level will automatically result in settings that will be above the level of magnetizing inrush current Both overcurrent stages operate on True RMS component Hence for the second overcurrent stage in P115 relays it is possible to apply settings corresponding to 35 of the peak inrush current whilst maintaining stability for the condition Application Notes P115 EN AP A41 MiCOM P115 AP 6 5 22 2 1 2 Application of timer hold facility for IEC IEEE US IDMT characteristics This feature may be useful in certain applications for example when grading with upstream electromechanical overcurrent relays which have inherent reset time delays Setting the hold timer to a value other than zero delays the resetting of the protection element timers for this period thus allowing the element to behave similarly to an electrome
114. e is based upon the inverse time current characteristic as used in the MCTDO1 Silicon Rectifier Protection Relay and the above diagrams show a typical application The protection of a rectifier differs from the more traditional overcurrent applications in that many rectifiers can withstand relatively long overload periods without damage typically 150 for 2 hours and 30096 for 1 min The I setting should be set to typically 11096 of the maximum allowable continuous load of the rectifier The relay gives start indications when the gt setting has been exceeded but this is of no consequence as this function is not used in this application The rectifier curve should be chosen for the inverse curve as it allows for relatively long overloads even with a 11096 I setting Typical settings for the TMS are Light industrial service TMS 0 025 Medium duty service TMS 0 1 Heavy duty traction TMS 0 8 Application Notes P115 EN AP A41 MiCOM P115 AP 6 9 22 2 3 2 3 1 2 4 2 5 The high set is typically set at 8 times rated current as this ensures HV AC protection will discriminate with faults covered by the LV protection However it has been known for the high set to be set to 4 or 5 times where there is more confidence in the AC protection Use of the thermal element to provide protection between 70 and 16096 of rated current could enhance the protection It is also common practice to provide restricted earth fault protection
115. e low state of this function determines the low state RL4 RL3 0 output RL3 is not latched The high state of the function configured to the output determines the high state of RL3 The low state of this function determines the low state of RL2 0 output RL2 is not latched The high state of the function configured to the output determines the high state of RL2 The low state of this function determines the low state RL2 RL1 0 output RL1 is not latched The high state of the function configured to the output determines the high state of RL1 The low state of this function determines the low state RL1 The high state of the function configured to the output determines the high state of the output relay The low state of this function does not change the state of the output relay For the low state of an output relay it is necessary to activate the Reset of Latched Output function via a Binary Input the front panel or the communication port Description of bits RL4 RL3 RL2 RL1 RL4 RL3 RL2 RL1 Reverse outp logic 0000 0 1 0 1 0 1 0 1 1 Reverse logic gives more flexibility of application If reverse logic for the output is chosen after the P115 is powered current auxiliary voltage the output contacts close contact Any high state function connected with this output will open the contacts of the output relay Default Setting 0000 means that RL4 0 output RL4 is w
116. e of wiring length cross section specific resistance of material e Resistance of P115 current inputs as per table 2 in section 3 2 Two critical cases have to be checked for different types of faults e the lowest set current threshold value at which the relay has to operate minimum current e the highest possible short circuit current which depends on the maximum short circuit power on the busbar of the substation maximum current The following equation is used for dimensioning a current transformer I Veg eel Ryn Ps a Ry n The current transformer can be dimensioned for the minimum required secondary accuracy limiting voltage acc to IEC 60044 1 2 3 4 I DSC lt Ra R n M IV ds ct R pn Z K ssc La R sal Application Notes P115 EN AP A41 MiCOM P115 AP 6 19 22 Alternatively the current transformer can also be dimensioned for the minimum required rated accuracy limit factor acc to IEC 60044 1 2 3 3 Ipse Kn Rr Da Dg a Ry pe Ra Rs Mn a Ry n n gt K Ra Rp _ Pa Ps wee E Rin id P T Pin The actual secondary connected burden Rb is given as follows e For phase to ground faults R 2 2 e e For phase to phase faults R R Rye The relay s burden Rra is per table 2 see section 3 2 The lead resistance R is to
117. e relay will correct for the transmission delay as specified in IEC60870 5 103 If the time synchronisation message is sent as a send confirm message then the relay will respond with a confirm Whether the time synchronisation message is sent as a send confirm or a broadcast send no reply message a time synchronisation message will be returned as Class 1 data Communication Database P115 EN CT A41 MiCOM P115 CT 13 35 40 3 4 3 5 3 6 3 7 3 8 3 9 3 10 Spontaneous events The events created by the relay will be passed using the standard function type information numbers to the IEC60870 5 103 master station Private codes are not used thus any events that cannot be passed using the standardised messages will not be sent Events are categorised using the following information e Common Address e Function Type e Information number 3 10 3 14 contains a complete listing of all events produced by the relay The common address is used to differentiate in circumstances where the relay produces more events of a certain type than can be passed using the standardised messages For example if the relay produces starts and trips for three stages of overcurrent only two stages can be passed using the standardised messages Using the different common address for two of the overcurrent stages allows each stage to be indicated 3 10 3 14 shows the common address as an offset value The common address offset will be added to the stat
118. e values measured by the relay can be compared with known system values to check that they are in the approximate expected range If they are then the analogue digital conversion and calculations are being performed correctly by the relay Suitable test methods can be found in sections 4 2 6 of the Commissioning chapter P115 EN CM Alternatively the values measured by the relay can be checked against known values injected into the relay via the test block if fitted or injected directly into the relay terminals These tests will prove the calibration accuracy is being maintained P115 EN MT A41 Maintenance MT 9 4 4 MiCOM P115 1 3 Method of repair It is recommended that the P115 relay is returned to an Schneider Electric service centre for repair Before carrying out any work on the equipment the user should be familiar with the contents of the Safety Guide SFTY 4L M E11 or later issue OR the safety and technical data section of the technical manual and also the ratings on the equipment rating label For safety reasons no work must be carried out on the P115 until all power sources to the unit have been disconnected 1 4 Cleaning Before cleaning the equipment ensure that all current transformers and voltage input connections are isolated to prevent any possibility of an electric shock whilst cleaning The use of detergents solvents or abrasive cleaners is not recommended as they may The equipment may be cleaned using a lint
119. earth fault input 7 9 terminals is above 0 2 In the following functions output contact RL1 all inputs L1 L2 event recording fault record recording memorizing of latched LEDs and outputs information memorizing of counter information are operational even if there is no auxiliary voltage on 11 12 terminals If the sum of the currents which supply P115 is below 0 5In for example the sum 0 la 0 25In 1b 0 251n 1 0 001 IN 0 00len when a loss of auxiliary voltage supply occurs the following functions are no longer available the RS485 communication port is switched off no communication with the control system via the RS485 link the LCD display is switched off the LEDs are switched off If after a switch on to fault operation the P115 is supplied again currents above 0 5 In or auxiliary power or USB the stored LED information will be displayed until it is reset RL2 RL3 RL4 are not energized If after a switch on to fault operation the P115 is supplied again currents above 0 5 In or auxiliary power or USB the stord output relay information will be energized until it is reset Depending on the N connection setting the earth current is a part of the above sum O terminals 7 9 or not 1 terminals 8 9 In a typical application every type of a fault with current values greater than 0 25In gives sum greater than 0 5In phase to phase or phase to earth fa
120. efinite Time DT the third stage gt gt gt may be set to DT only 50 51 Two non directional overcurrent stages are provided The first stage IN gt 50N 51N may be set to Inverse Definite Minimum Time IDMT or Definite Time DT the second stage IN gt gt may be set to DT only 46 Asymmetry overcurrent stage is provided with Definite Time DT The P115 also offers the following relay management functions in addition to the functions listed above e Upto 5 last Fault Records and 100 Events available via the USB port or rear optional communication port RS485 e Readout of actual settings available via the USB port or rear communication RS485 e Control of CB via a rear communication port RS485 or the front panel e Two binary inputs e External trip function via binary input e Up to 4 output contacts ordering option e Energy output for CB low energy coil ordering option Introduction P115 EN IT A41 MiCOM P115 IT 1 7 8 e Energy output for Flag Indicator e phase current inputs e Earth fault current input e Circuit Breaker Fail CBF function e Start and trip counters Application overview Local Remote communication communication Low Energy Trip Coil Flag Indicator Contact Output RL4 Communication Contact Output RL3 Contact Output RL2 Contact Output RL1 Binary input L2
121. elay menu map The relay is supplied with a factory set configuration of default settings All current settings refer to nominal current ordering option 1A or 5 A The nominal current can be defined separately for phase In and earth len currents in the ordering process ordering hardware option MiCOM S1 can be used to download and upload protection and configuration setting values via the relay s USB port The protection and settings include all the following items that become active once enabled in the configuration column of the relay menu database Protection element settings Output settings Input settings LED settings There are two groups of protection and settings with each group containing the same setting cells One group of protection and settings is selected as the active group and is used by the protection elements The settings for group 1 are shown The settings are discussed in the same order in which they are displayed in the menu The menu structure is as follows DEFAULT WINDOW Currents in multiples of In currents in Amps CB Control window ALARM STATUS RECORDS FAULT RECORDS COUNTERS SETTING GROUP 1 PROTECTION G1 PHASE O C G1 50 51 E GND FAULT G1 50N 51N ASYMMETRY G1 46 CB FAIL G1 50BF AUX TIMERS G1 OUTPUT RELAY CONFIGURATION G1 INPUTS CONFIGURATION G1 LEDS CONFIGURATION G1 P115 EN ST A41 Settings ST 4 4 32 MiCOM P115 SET
122. equipments is 16A high rupture capacity HRC Red Spot type NIT or TIA or equivalent Unless otherwise stated in equipment technical manual the following data is applicable The protective fuse should be located as close to the unit as possible CAUTION CTs must NOT be fused since open circuiting them may produce lethal hazardous voltages 6 2 Protective Class IEC 60255 27 2005 Class unless otherwise specified in the equipment documentation This equipment requires a protective conductor earth connection to ensure user safety 6 3 Installation Category IEC 60255 27 2005 Installation Category Overvoltage Category III EN 60255 27 2006 Distribution level fixed installation Equipment in this category is qualification tested at 5 kV peak 1 2 50 us 500 0 5 J between all supply circuits earth and also between independent circuits 6 4 Environment The equipment is intended for indoor installation and use only If it is required for use in an outdoor environment then it must be mounted in a specific cabinet or housing which will enable it to meet the requirements of IEC 60529 with the classification of degree of protection IP54 dust and splashing water protected Pollution Degree Pollution Degree 2 Compliance is demonstrated by reference Altitude Operation up to 2000m to safety standards IEC 60255 27 2005 EN 60255 27 2006 Introduction P115 EN IT A41 MiCOM P115 INTRODUCTION Date 20 February
123. er Creepage Distances and Clearances EN 60255 27 2005 Pollution degree 2 Overvoltage category III Impulse test voltage 5 kV High Voltage Dielectric Withstand EN 60255 27 2005 2 kV r ms AC 1 minute Between all case terminals connected together and the case earth Between all terminals of independent circuits with terminals on each independent circuit connected together P115 EN TD A41 TD 2 3 8 Impulse Voltage Withstand Test EN 60255 27 2005 Front time 1 2 us Time to half value 50 us Peak value 5 kV Source Characteristics 500 Ohm 0 54 Common and differential mode power supply terminal block excluding RS485 binary inputs relays Electromagnetic Compatibility EMC 1 MHz Burst High Frequency Disturbance Test IEC 60255 22 1 2005 Class Common mode test voltage 2 5 kV Differential test voltage 1 0 kV Test duration 2s Source impedance 2000 Immunity to Electrostatic Discharge IEC 60255 22 2 1996 Class 3 8kV discharge in air to all communication ports 6kV point contact discharge to any part of the front of the product Electrical Fast Transient or Burst Requirements EN 60255 22 4 2002 Test severity Class III Amplitude 2 kV burst frequency 5 kHz Class Surge Immunity Test EN60255 22 5 2002 EN 61000 4 5 2006 Level 3 Time to half value 1 2 50 us Amplitude 2kV between all groups and case earth Amplitude 1kV between terminals of each group Im
124. er Time Characteristic Dial Setting of 1 0 Nominal Seconds Range Seconds DT gt Time Delay Setting Setting 5 IEC S Inverse 10 03 9 28 11 78 IEC V Inverse 13 50 12 49 14 51 IEC E Inverse 26 67 24 67 29 67 UK LT Inverse 120 00 111 00 129 00 UK ST Inverse 1 78 1 65 1 91 IEEE M Inverse 3 8 3 52 4 08 IEEE V Inverse 7 03 6 51 7 55 IEEE E Inverse 9 52 8 81 10 23 US Inverse 2 16 2 00 2 32 US ST Inverse 12 12 11 22 13 02 RI Inverse 4 52 4 19 4 86 Table 2 Characteristic operating times for I gt Reconfigure to test a B phase fault Repeat the test in section 5 2 1 2 this time ensuring that the breaker trip output relative to B phase operation trips correctly Record the phase B trip time Repeat for C phase fault 5 2 1 4 Check the outputs 5 2 1 4 1 CB coil output Ensure that the CB coil is connected to terminals 29 and 30 Ensure that I gt stage is configured to trip refer to chapter P115 EN ST of this manual Close the CB Connect a multimeter with recording of maximum dc voltage value to terminals 29 and 30 Apply a current of twice the setting for I gt The CB will open when the tI time delay elapses Record the maximum voltage value measured by the multimeter The value should be greater than i 24 Vdc to 26 4 Vdc for ordering option 24 Vdc 0 1 Ws ii 12 Vdc to 13 2 Vdc for ordering option 12 Vdc 0 02 Ws P115 should trip CB 5 2 1 4 2 Flag i
125. eristic IEEE 4 9 VI Very Inverse Time Characteristic IEEE 21 6 EI Extremely Inverse Time Characteristic IEEE 29 1 CO8 Short Time Inverse Characteristic US 5 95 CO2 Inverse Characteristic US 2 261 Table 1 The value of tr for IDMT characteristics P115 EN AP A41 Application Notes AP 6 6 22 MiCOM P115 2 1 3 Setting guidelines When applying the overcurrent protection provided in the P115 relays standard principles should be applied in calculating the necessary current and time settings for co ordination The Network Protection and Automation Guide NPAG textbook offers further assistance The example detailed below shows a typical setting calculation and describes how the settings are applied to the relay Assume the following parameters for a relay feeding an LV switchboard CT Ratio 500 Full load current of circuit 440A Slowest downstream protection 100 A Fuse The current setting employed on the P115 relay must account for both the maximum load current and the reset ratio of the relay itself I must be greater than 440 A 0 95 500 A 0 9263 In I must be greater than 0 9263 In For setting range 0 2 4 In step is 0 01 In so the closest I gt set value 0 93 In A suitable time delay characteristic can now be chosen When coordinating with downstream fuses the applied relay characteristic should be closely matched to the fuse characteristic Therefore assuming IDMT co ordinatio
126. est to the right is flashing Enter the password 1 Ifthe digit is flashing change the digit to the required value by pressing the DOWN key or the UP key 2 Change the flashing digit by pressing the left key or right key 3 Continue as above to set the whole password 5 digits 4 Ifthe correct password is set press the ENTER key The LCD displays OK during approximately 1 second then the new SETTING CHANGE cell is displayed If the password entered is for Administrator rights Setting change Without limits Protection settings Setting change Without limits Control only Setting change Test control The screen displays the scope of the current modification rights To indicate that the P115 is in SETTING CHANGE MODE the programmable LEDs are flashing At this time it is possible to start changing the setting parameters Getting Started P115 EN GS A41 MiCOM P115 GS 3 11 24 NOTE The parallel pressing UP and LEFT key it makes jump from any place to Edit settings Enter PSWD the menu cell in which the password can be entered hot key If all settings are changed it is necessary to return to PROTECTION MODE to apply a warm reset Press the UP and LEFT keys simultaneously to jump to the following cell Edit settings Exit press ENTER Setting change Protected Press the ENTER key to apply a warm reset and display the fol
127. etry current is above set Iasym threshold Description of bits RL4 RL3 RL2 RL1 RL4 RL3 RL2 RL1 Start AUX1 0000 0 1 0 1 0 1 0 1 1 Start AUX1 function is high if AUX1 protection element is high Description of bits RL4 RL3 RL2 RL1 RL4 RL3 RL2 RL1 Start AUX2 0000 0 1 0 1 0 1 0 1 1 Start AUX2 function is high if AUX2 protection element is high P115 EN ST A41 ST 4 14 32 Settings MiCOM P115 Menu Text Default Setting Setting Range Step Size Description of bits TC FI RL4 RL3 RL2 RL1 TC FI RL4 RL3 RL2 RL1 gt 000000 0 1 0 1 0 1 0 1 0 1 0 1 1 tI function is high if the set time delay of I gt element has elapsed Description of bits TC FI RL4 RL3 RL2 RL1 TC FI RL4 RL3 RL2 RL1 gt gt 000000 0 1 0 1 0 1 0 1 0 1 0 1 1 tI gt gt function is high if the set time delay of I gt gt element has elapsed Description of bits TC FI RL4 RL3 RL2 RL1 TC FI RL4 RL3 RL2 RL1 gt gt gt 000000 0 1 0 1 0 1 0 1 0 1 0 1 1 gt gt gt function is high if the set time delay of I gt gt gt element has elapsed Description of bits TC FI RL4 RL3 RL2 RL1 TC FI RL4 RL3 RL2 RL1 tIN gt 000000 0 1 0 1 0 1 0 1 0 1 0 1 1 tIN function is high if the set time delay of IN element has elapsed Description of bits TC FI RL4 RL3 RL2 RL1 TC FI RL4 RL3 RL2 RL1 tIN gt gt 000000 0 1 0 1 0 1 0 1
128. ettings MiCOM P115 Menu Text Default Setting Setting Range eee Description of bits LED 8 7 6 5 4 3 LED 8 7 6 5 4 3 tIN gt 000000 0 1 0 1 0 1 0 1 0 1 0 1 1 This LED is lit if the set time delay for the IN element has elapsed Description of bits LED 8 7 6 5 4 3 LED 8 7 6 5 4 3 tIN gt gt 000000 0 1 0 1 0 1 0 1 0 1 0 1 This LED is lit if the set time delay for the IN gt gt element has elapsed Description of bits LED 8 7 6 5 4 3 LED 8 7 6 5 4 3 tlasym gt 000000 0 1 0 1 0 1 0 1 0 1 0 1 This LED is lit if the set time delay for the Iasym element has elapsed Description of bits LED 8 7 6 5 4 3 LED 8 7 6 5 4 3 CB Fail 000000 0 1 0 1 0 1 0 1 0 1 0 1 This LED is lit if the set time delay of the CBF protection function has elapsed Description of bits LED 8 7 6 5 4 3 LED 8 7 6 5 4 3 CBF ext 000000 0 1 0 1 0 1 0 1 0 1 0 1 1 This LED is lit if the CBF ext function is enabled by the appropriate binary input Description of bits LED 8 7 6 5 4 3 LED 8 7 6 5 4 3 tAUX1 000000 0 1 0 1 0 1 0 1 0 1 0 1 1 This LED is lit if the set time delay for the AUX1 element has elapsed Description of bits LED 8 7 6 5 4 3 LED 8 7 6 5 4 3 tAUX2 000000 0 1 0 1 0 1 0 1 0 1 0 1 This LED is lit if the set time delay for the AUX2 element has elapsed Description of bits LED
129. free cloth moistened with clean water AN damage the relay s surface and leave a conductive residue Troubleshooting P115 EN TS A41 MiCOM P115 TROUBLESHOOTING Date 20 February 2009 Hardware Suffix A Software Version 1D Connection Diagrams 10P11504 P115 EN TS A41 Troubleshooting MiCOM P115 Troubleshooting MiCOM P115 CONTENTS 1 INTRODUCTION 2 INITIAL PROBLEM IDENTIFICATION 3 POWER UP ERRORS 4 MALOPERATION OF THE RELAY DURING TESTING 4 1 Failure of binary inputs 4 2 Failure of output contacts 5 REPAIR AND MODIFICATION PROCEDURE P115 EN TS A41 TS 10 1 8 P115 EN TS A41 TS 10 2 8 Troubleshooting MiCOM P115 Troubleshooting P115 EN TS A41 MiCOM P115 TS 10 3 8 1 INTRODUCTION Before carrying out any work on the equipment the user should be familiar with the contents of the Safety Guide SFTY 4L M E11 or later issue OR the safety and technical data section of the technical manual and also the ratings on the equipment rating label For safety reasons no work must be carried out on the P115 until all power sources to the unit have been disconnected The purpose of this section of the service manual is to allow an error condition on the relay to be identified so that appropriate corrective action can be taken In cases where a faulty relay is being returned to the manufacturer or one of their approved service centers a completed copy of the Repair Modification Retum Auth
130. g label and integrity of connections Protective fuse rating ntegrity of the protective conductor earth connection where applicable Voltage and current rating of external wiring applicable to the application Accidental touching of exposed terminals If working in an area of restricted space such as a cubicle where there is a risk of electric shock due to accidental touching of terminals which do not comply with IP20 rating then a suitable protective barrier should be provided Equipment use If the equipment is used in a manner not specified by the manufacturer the protection provided by the equipment may be impaired Removal of the equipment front panel cover Removal of the equipment front panel cover may expose hazardous live parts which must not be touched until the electrical power is removed Pxxx EN SS G11 Page 6 8 AN pp Pio PP Safety Section UL and CSA CUL Listed or Recognized equipment To maintain UL and CSA CUL Listing Recognized status for North America the equipment should be installed using UL or CSA Listed or Recognized parts for the following items connection cables protective fuses fuseholders or circuit breakers insulation crimp terminals and replacement internal battery as specified in the equipment documentation For external protective fuses a UL or CSA Listed fuse shall be used The Listed type shall be a Class J time delay fuse with a maximum current rating of 15 A and a
131. ges effected via a binary input only 1 6 6 COMMISIONING column In the COMISSIONING column displays the active binary input and binary output status COMMISSIONING Opto I P Status Relay O P TF4321 Status 000000 A Test Pattern Test outputs 0 no operation PO862ENb TF4321 000000 Figure 8 COMMISSIONING column P115 EN GS A41 Getting Started GS 3 18 24 MiCOM P115 1 6 7 SETTING CHANGE MODE column The SETTING CHANGE MODE column is used to Allow changing of all parameters in the menu SETTING CHANGE MODE see section 1 5 1 Set a new password or change the existing password Change Password see section 1 5 3 SETTING CHANGE MODE Edit settings Enter PSWD Setting change Protected P0863ENa Figure 9 SETTING CHANGE MODE column Getting Started P115 EN GS A41 MiCOM P115 GS 3 19 24 1 6 8 Menu Map e m D m 4 06 08 01 Date Figure 10 P115 Menu Map Firmware 1D Page 1 P115 EN GS A41 Getting Started GS 3 20 24 MiCOM P115 TT M Figure 11 P115 Menu Map Firmware 1D Page 2 P115 EN GS A41 Getting Started GS 3 21 24 MiCOM P115
132. he LED indications the display and the RS485 comms are switched off RL2 RL4 are not energized Depending on the setting the earth current is included or not in the above sum refer to Settings chapter P115 EN ST P115 EN TD A41 TD 2 2 8 Power Supply Nominal Auxiliary Voltage Vx Two ordering options i Vx 24 to 48 Vdc and 24 to 48 Vac 50 60 Hz ii Vx 60 to 250 and 60 to 240 Vac 50 60 Hz Operating Range i 19 to 58 V 19 to 53V ac ii 48 to 300 V dc 48 to 265 V ac With a tolerable ac ripple of up to 1296 for a dc supply per IEC 60255 11 1979 Nominal Burden Auxiliary Power Supply Vx Note i Initial position no output nor LED energized ii Active position all outputs and LEDs energized i for ac max approx S VA Initial Active position position 24 48Vac 48 60 100 110 220 230 264 60 240Vac ii for dc Vx voltage 24 48Vdc and 60 250Vdc max approx Initial position 1 5W Active position 3 7W Power up Time for Auxiliary Supply Voltage only Time to power up via auxiliary supply only not powered by CT lt 0 04 s Auxiliary Power Supply Voltage Interruption without powering by CT IEC 60255 11 1979 The relay will withstand a 50 ms interruption of the DC auxiliary supply within the auxiliary supply range without de energizing EN 61000 4 11 1997 The relay will withstand a 50 ms interrupt
133. hem safe Fiber optic communication Where fiber optic communication devices are fitted these should not be viewed directly Optical power meters should be used to determine the operation or signal level of the device Cleaning The equipment may be cleaned using a lint free cloth dampened with clean water when no connections are energized Contact fingers of test plugs are normally protected by petroleum jelly which should not be removed DECOMMISSIONING AND DISPOSAL De commissioning The supply input auxiliary for the equipment may include capacitors across the supply or to earth To avoid electric shock or energy hazards after completely isolating the supplies to the equipment both poles of any dc supply the capacitors should be safely discharged via the external terminals prior to de commissioning Disposal It is recommended that incineration and disposal to water courses is avoided The equipment should be disposed of in a safe manner Any equipment containing batteries should have them removed before disposal taking precautions to avoid short circuits Particular regulations within the country of operation may apply to the disposal of the equipment Pxxx EN SS G11 8 8 Safety Section 6 TECHNICAL SPECIFICATIONS FOR SAFETY Unless otherwise stated in the equipment technical manual the following data is applicable 6 1 Protective fuse rating The recommended maximum rating of the external protective fuse for
134. iar with the method by which the settings are applied The Getting Started chapter P115 EN GS contains a detailed description the P115 relay Via the front panel all the settings can be changed refer to Settings chapter P115 EN ST of this manual LEDs and alarms reset and fault and event records cleared However menu cells which have access levels higher than the default level will require the appropriate password to be entered before changes can be made Alternatively if a portable PC is available together with suitable setting software such as MiCOM 1 the menu can be viewed a page at a time to display a full column of data and text This PC software also allows settings to be entered more easily saved to a file on disk for future reference or printed to produce a setting record Refer to the PC software user manual for details If the software is being used for the first time allow sufficient time to become familiar with its operation Commissioning P115 EN CM A41 MiCOM P115 8 5 32 3 3 1 AN EQUIPMENT REQUIRED FOR COMMISSIONING Minimum equipment required Multifunctional dynamic current injection test set Multimeter with suitable ac current range Ensure that the multimeter fuse is not open circuited if used for CT current measurement Multimeter with maximum value recording of the dc voltage to measure the dc magnitude of the trip pulse Continuity tester if not included in multimeter NOTE M
135. ic in coordinating overcurrent relays is the IDMT type The inverse time delayed characteristics indicated above comply with the following formulae IEC curves t TMS p M 1 IEEE ANSI curves L M 1 where t Operating time in s p Constant 5 I Measured current in A Is Current threshold setting A TMS Time multiplier setting for IEC curves s TD Time dial setting for IEEE US curves s a Constant J ANSI IEEE Constant P115 EN OP B41 OP 5 6 12 Operation MiCOM P115 Type of Curve Standard p a L Standard Inverse Time SI IEC 0 14 0 02 0 Very Inverse Time VI IEC 13 5 1 0 Extremely Inverse Time El IEC 80 2 0 Long Time Inverse LTI UK 120 1 0 Short Time Inverse STI UK 0 05 0 04 0 Rectifier Rect UK 45900 5 6 0 Moderately Inverse Time MI IEEE 0 0515 0 02 0 114 Very Inverse Time VI IEEE 19 61 2 0 491 Extremely Inverse Time El IEEE 28 2 2 0 1217 Time Inverse CO8 US 5 95 2 0 18 Short Time Inverse CO2 US 0 16758 0 02 0 11858 A time multiplier setting TMS is used to adjust the operating time of IEC amp UK IDMT curves A time multiplier setting TD is used to adjust the operating time of IEEE ANSI or US IDMT curves Standard Inverse IEC Very In
136. if the cause of alarm has been triggered Therefore if after pressing the DOWN key no the new cell is displayed it means that no alarms have been detected Depending on the P115 configuration an alarm signal is self resetting no cause of alarm no alarm signal GLOBAL SETTINGS LOC Alarm Display 0 Self Reset or manually resettable alarm signal latched GLOBAL SETTINGS LOC Alarm Display 1 Manual Reset Default setting 0 Self Reset This means that if an alarm signal has disappeared no information is available in the ALARM STATUS column If Manual Reset is set this means that if an alarm signal has disappeared the corresponding information is still available in the ALARM STATUS column up until it is reset in the ALARM STATUS Alarm Reset cell Alarm information is always available in the event recorder However the programmable LEDs can be used to store causes of alarm if required Figure 4 shows all causes of alarms if alarms have been enabled in the main configuration column of the protection function P115 EN GS A41 Getting Started GS 3 14 24 MiCOM P115 ALARM STATUS Alarm CB not Healthy Alarm Hardware Warning Alarm Reset No operation PO858ENb Figure 4 ALARM column Getting Started P115 EN GS A41 MiCOM P115 GS 3 15 24 1 6 3 RECORDS column Five fault records are available in the P115 Changing a record in the menu is possible in the Record Nb menu cell by pressing the
137. iguration If the protection element is Enable Alarm it means that it is set to the General Alarm Command Alarm which can be used in I O configuration I Threshold 1 4 x In 0 2 x In 4 0 x In 0 01 x In Pick up setting for first stage of the overcurrent element DMT IEC SI IEC IEC El UK LTI I gt Delay Type IEC SI UK STI UK RC RI IEEE MI IEEE VI IEEE El US CO2 US CO8 Setting for the tripping characteristic for the first stage overcurrent element gt 15 0 025 2005 0 015 Setting for the time delay for the definite time setting if selected for first stage element I TMS 1 0 02 1 6 0 01 Setting for the time multiplier setting to adjust the operating time of the IEC UK and RI IDMT characteristic I Time Dial 1 0 02 200 0 01 Setting for the time multiplier setting to adjust the operating time of the IEEE US IDMT curves Reset Delay Type I gt DMT DMT or IDMT N A Setting to determine the type of reset release characteristic of the IEEE US curves DMT tReset 1 gt 0s 0s 200s 0 01s Setting that determines the reset release time for definite time reset characteristic I gt Disabled Disabled Enable Trip Enable Alarm Setting for Disable or enable of protection element It is possible to enable for tripping CB Enable Trip or enable for an Alarm signal only Enable Alarm If the protection element is Enable T
138. ing information correct for installation Yes No L 1 1 1 3 Case earth installed Yes No Yes 1 1 2 Insulation resistance gt 100 at 500V dc Not Tested 1 1 3 External wiring 1 1 3 1 Wiring checked against diagram yes O No 1 1 4 Measured auxiliary voltage supply V ac P115 EN CM A41 8 18 32 1 2 1 2 1 1 2 1 1 1 2 1 2 1 2 1 3 1 2 1 4 1 2 2 1 2 2 1 1 2 2 2 1 2 2 3 1 2 3 1 2 3 1 1 2 3 1 1 1 2 3 1 2 1 2 3 1 3 1 2 3 1 4 1 2 3 2 1 2 3 3 1 2 3 4 1 2 4 2 1 With the relay energized Light emitting diodes Connect auxiliary voltage supply to terminals 11 and 12 Green Healthy LED working Supply P115 with current above self powering level 0 2In Green Healthy LED working Establish connection between PC and P115 via USB port Green Healthy LED working Reset LEDs by pressing the C key on the P115 s front panel Red gt LED flashing rapidly Inputs Auxiliary voltage for binary control inputs Value measured see COMMISSIONINGI Opto Status window of menu L1 binary input working L2 binary input working Outputs for tests COMMISSIONING Test outputs cell can be used Output Relays Relay 1 working Relay 2 working Relay 3 working Relay 4 working Maximum voltage value measured on Low Energy Tripping Coil output 29 and 30 during trip signal note 50ms pulse signal Maximum voltage
139. ion in AC auxiliary supply without de energizing Current transformer Detailed information and CT requirements are given in the Application chapter P115 EN AP Technical Data MiCOM P115 Binary Inputs The binary inputs can be powered with both DC and AC voltage as binary input control voltage Binary input type Optically isolated Rated nominal voltage the same as Vx Operating range the same as Vx Withstand 300 Vdc or 275 Vac Nominal pick up and reset thresholds i for DC Vx 24 48Vac dc Pick up approx 12 Vdc Reset approx 11 Vdc Vx 60 240Vac dc Pick up approx 21 Vdc Reset approx 20 Vdc ii for AC Vx 24 48Vacl dc Pick up approx 16 Vac Reset approx 11 Vac Vx 60 240Vac dc Pick up approx 26 Vac Reset approx 19 Vac Recognition time 20 ms Energy consumption of binary inputs Resistance of binary inputs i 24 to 48 Vac dc 5 5 5 ii 60 to 240 Vac dc 100 5 For 220Vdc 220Vdc x 100kQ 5 0 484W 5 Outputs Impulse Output for the tripping coil ordering option Trip energy Hardware version P115746x1xxxxxx E gt 0 1 J 24 Vdc 0 to 10 Hardware version P115746x2xxxxxx E gt 0 02 J 12 Vdc 0 to 10 Impulse Output for flag indicator or auxiliary relay Trip energy E gt 0 01 J Voltage 24 Vdc 0 to 10 Note The tripping energy for the tripping coil flag indicator is stored by a capacitor built into the protectio
140. ion 1 Section 2 Section 3 Section 4 Section 5 Section 6 Section 7 Section 8 Section 9 Section 10 Section 11 Section 12 Section 13 Section 14 Safety Section Update Documentation Introduction Technical Data Getting Started Settings Operation Application Notes Measurements and Recording Commissioning Maintenance Troubleshooting Symbols and Glossary Installation Communication Database Firmware and Service Manual Version History Pxxx EN SS G11 P115 EN IT A41 P115 EN TD A41 P115 EN GS A41 P115 EN ST A41 P115 EN OP B41 P115 EN AP A41 P115 EN MR A41 P115 EN CM A41 P115 EN MT A41 P115 EN TS A41 P115 EN SG A41 P115 EN IN B41 P115 EN CT A41 P115 EN VH A41 N A o Ee zi BEIBIHEHEFEBBEEBPBBE E lt Ke ZI Pxxx EN SS G1 1 SAFETY SECTION Pxxx EN SS G1 1 Safety Section Page 1 8 STANDARD SAFETY STATEMENTS AND EXTERNAL LABEL INFORMATION FOR SCHNEIDER ELECTRIC EQUIPMENT 1 INTRODUCTION 3 2 HEALTH AND SAFETY 3 3 SYMBOLS AND EXTERNAL LABELS ON THE EQUIPMENT 4 3 1 Symbols 4 3 2 Labels 4 4 INSTALLING COMMISSIONING AND SERVICING 4 5 DECOMMISSIONING AND DISPOSAL 7 6 TECHNICAL SPECIFICATIONS FOR SAFETY 8 6 1 Protective fuse rating 8 6 2 Protective Class 8 6 3 Installation Category 8 6 4 Environment 8 Pxxx EN SS G11 Page 2 8 Safety Section BLANK PAGE Pxxx EN SS G1 1
141. ion address in order to pass these events General interrogation The Gl request can be used to read the status of the relay the function numbers information numbers and common address offsets that will be returned during the GI cycle are indicated in 3 10 3 14 Cyclic measurements The relay will produce measured values using ASDU 9 on a cyclical basis this can be read from the relay using a Class 2 poll note ADSU 3 is not used It should be noted that the measurands transmitted by the relay are sent as a proportion of 2 4 times the rated value of the analogue value The selection of 2 4 for a particular value is indicated in 3 10 3 14 Commands A list of the supported commands is contained in 3 10 3 14 The relay will respond to other commands with an ASDU 1 with a cause of transmission COT of negative acknowledgement of a command Disturbance records The relay does not support a facility for disturbance records in the Monitor direction IEC 60870 5 103 DATABASES Blocking of monitor direction The relay does not support a facility to block messages in the Monitor direction IEC 60870 5 103 DATABASES Spontaneous messages managed by MiCOM P115 These messages includes a sub assembly of events which are generated on the relay because some generated events are not registered in VDEW They are the most priority messages An event is always generated on the rising edge of the information Some events can be generated on
142. is available The relay is mounted onto a panel by means of four 4 5mm drill holes flush mounting case 5 5mm drill holes wall mounting case Detailed drawing with all measurements can be found in Figure 1 Installation P115 EN IN B41 MiCOM P115 IN 12 5 18 6 6 1 6 2 RELAY WIRING Before carrying out any work on the equipment the user should be familiar with the contents of the Safety Guide SFTY 4L M E11 or later issue OR the safety and technical data section of the technical manual and also the ratings on the equipment rating label For safety reasons no work must be carried out on the P115 until all power sources to the unit have been disconnected The measuring current inputs of the P115 should be connected to the secondary wires of the power system CTs as shown in the connection diagrams in section 8 External Connection Diagram of this chapter P115 EN IN The CT types which can be connected to the P115 s current input terminals are shown in section 3 of the Applications chapter P115 EN AP Terminal block connections AC Current Input Terminals Threaded M3 screw type plug in terminals with wire protection for conductor cross section e 0 2 6mm single core e 0 2 4mm finely stranded General Input Output Terminals For power supply binary inputs output contacts and COM for rear communications Threaded M3 screw type plug in terminals with wire protection for conductor cross section e 0 2 4mm
143. it E124 Up to 300Vdc 59J Communication Interface RS 485 AUX1 AUX2 Energy outputs Nowe Flag Indicator output 27 An auxiliary voltage supply is recommended 10 have RS 485 communication taciises MiCOM P115 P0835ENb Figure 9 Connection example for a P115 powered by an E124 and with a 4 pole connection A B C N The earth input supplies the relay refer to Application chapter P115 EN AP Installation P115 EN IN B41 MiCOM P115 IN 12 17 18 Phase to phase ac voltage from substation auxiliary Auxiliary Power transformer or VT Supply Vx Trip Element a powerful trip Capacitor Trip Unit E124 Up to 300Vdc 59J Communication Interface RS 485 31 Energy outputs Nate Flag Indicasor output 27 An auxiliary voltage supply is rocommendad to have RS 485 communication facilities MiCOM P115 P0836ENb Figure 10 Connection example for a P115 powered by an E124 and with a 4 pole connection A B C N The P115 is not supplied via the earth input refer to Application chapter P115 EN AP Installation P115 EN IN B41 IN 12 18 18 MiCOM P115 Communication Database P115 EN CT A41 MiCOM P115 COMMUNICATION DATABASE Date 20 February 2009 Hardware Suffix A Software Version 1D Connection Diagrams 10P11504 P115 EN CT A41 Communication Database MiCOM P115 Communication Database MiCOM P115 CONTENTS 1 INTRODUCTION 1 1 Purpose of this
144. ithout reverse logic The state of the output is in line with the state of the function RL3 0 output RL3 is without reverse logic The state of the output is in line with the state of the function RL2 0 output RL2 is without reverse logic The state of the output is in line with the state of the function RL1 0 output RL1 is without reverse logic The state of the output is the same as the state of the function P115 EN ST A41 Settings ST 4 12 32 MiCOM P115 Menu Text Default Setting Setting Range Step Size Description of bits TC FI RL4 RL3 RL2 RL1 TC FI RL4 RL3 RL2 RL1 Protection Trip 110000 0 1 0 1 0 1 0 1 0 1 0 1 1 Protection trip is high if any protection element configured Enable Trip is high Current based protection elements and external protection elements AUX1 AUX2 CBF re trip Default Setting 110000 means that TC 1 the Low Energy Tripping Coil output for is configured to the Protection trip function Fl 1 the Flag Indicator output is configured to the Protection trip function RL4 0 output RL4 is not configured to the Protection trip function RL3 0 output RL3 is not configured to the Protection trip function RL2 0 output RL2 is not configured to the Protection trip function RL1 1 output RL1 is configured to the Protection trip function Description of bits RL4 RL3 RL2 RL1 RL
145. ization Contact the appropriate Schneider Electric technical sales office and request the necessary information Pxxx EN SS G11 Page 4 8 Safety Section 3 3 1 3 2 4 SYMBOLS AND EXTERNAL LABELS ON THE EQUIPMENT For safety reasons the following symbols and external labels which may be used on the equipment or referred to in the equipment documentation should be understood before the equipment is installed or commissioned Symbols AN AX Caution refer to equipment documentation Caution risk of electric shock 4 Protective Conductor Earth terminal Functional Protective Conductor Earth terminal Note This symbol may also be used for a Protective Conductor Earth Terminal if that terminal is part of a terminal block or sub assembly e g power supply NOTE THE TERM EARTH USED THROUGHOUT THIS GUIDE IS THE DIRECT EQUIVALENT OF THE NORTH AMERICAN TERM GROUND Labels See Safety Guide SFTY 4L M G11 for equipment labelling information INSTALLING COMMISSIONING AND SERVICING N Equipment connections Personnel undertaking installation commissioning or servicing work for this equipment should be aware of the correct working procedures to ensure safety The equipment documentation should be consulted before installing commissioning or servicing the equipment Terminals exposed during installation commissioning and maintenance may present a hazardous voltage unless the equipment is electricall
146. ize the relay only if the auxiliary supply is within the specified operating ranges If a test block is provided it may be necessary to link across the front of the test plug to connect the auxiliary supply to the relay NOTE Vx nominal supply rating is common to auxiliary voltage supply and binary control inputs With the relay energized The following group of tests verifies that the relay hardware and software are functioning correctly and should be carried out while the P115 is powered MV isolators should be opened and the MV side should be connected to the earth to allow safe operation of the CB Light emitting diodes LEDs On power up the green LED should have lit up and stayed on indicating that the relay is healthy The relay has non volatile memory which remembers the state on or off of the alarm trip and if configured to latch LED indicators when the relay was last energized from an auxiliary supply Therefore these indicators may also lit up when the auxiliary supply is applied Latching of LEDs can be configured via MICOM 1 setting software USB port or manually by the front panel P115 EN CM A41 Commissioning 8 8 32 MiCOM P115 Default configuration of LEDs latching e P115 ordering option with auxiliary voltage supply with latching up to reset via Binary Input appropriately configured or via communication port e P115 ordering option without auxiliary voltage supply without latching NOTE Above
147. l state it is possible to control the CB in the default window and reset the counters in the Counter column If the password is set to 0 no password is necessary to control the CB In the Protected state settings are password protected Menu Text Default Setting Available Settings Edit Settings Enter PSWD 00000 99999 This cell is used to switch the P115 to Edit Settings in order to allow changing the settings Protected Without Setting Change Protected limits Protection only Test Control This cell displays the level of rights to change settings Change Password 00000 99999 This cell is displayed if the password is entered To change the password it is necessary to press the Enter key and enter the new password After that it is necessary to press enter to save the new password To access the Edit Setting Menu window faster press the left and up keys at the same time This action makes the menu jump to the Edit Setting Window Then press the Enter key a password will be requested Enter the password the default factory password is 00000 All the LEDs will then light up in rapid sequence This indicates that the P115 is operating in Edit Mode the parameters can be changed in this state After having set all the required parameters press simultaneously the Left and Up keys then press the Enter key once Settings P115 EN ST A41 MiCOM P115 ST 4 31 32 6 OP PARAMETER
148. l is connected with Binary Input of P115 Matrix configuration allows the free configuration of functions to the inputs Menu Text Default Setting Setting Range eee Description of bits L2 L1 L2 L1 Reverse Input Logic 00 0 1 0 1 1 Reverse logic provides extra flexibility to the application Reverse logic means that the high state of binary input causes the corresponding logic signal to be in low state Default Setting 00 means that L2 0 input L2 is without reverse logic The state of L2 logic input is in line with the state of L2 binary input L1 0 input L1 is without reverse logic The state of L1 logic input is in line with the state of L1 binary input Description of bits L2 L1 L2 L1 Blocked Outputs 00 0 1 0 1 1 The high state of this logic input moves functions configured to all outputs to their low state Description of bits L2 L1 L2 L1 Reset Latchd LEDs 00 0 1 0 1 1 The high state of this logic input resets all latched LEDs Description of bits L2 L1 L2 L1 Reset Latchd Outputs 00 0 1 0 1 1 The high state of this logic input resets all latched contact outputs Description of bits L2 L1 L2 L1 Blocking gt 00 0 1 0 1 1 The high state of this logic input disables the gt protection element and resets its time delay Description of bits L2 L1 L2 L1 Blocking I gt g
149. lable or that P115 is not healthy For CT powered relays it is not possible to differentiate between the above conditions Output contacts can also be configured to the Healthy function Setting Section P115 EN ST Operation P115 EN OP B41 MiCOM P115 OP 5 5 12 2 OPERATION OF INDIVIDUAL PROTECTION FUNCTIONS 2 1 The following sections detail the individual protection functions Overcurrent protection The overcurrent protection included in the P115 relays provides three stage non directional three phase overcurrent protection with independent time delay characteristics All overcurrent settings apply to all three phases but are independent for each of the three stages The first I gt and second I gt gt stage of overcurrent protection has time delayed characteristics which are selectable between inverse definite minimum time IDMT or definite time DMT The third I gt gt gt stage has a definite time characteristic only Various methods are available to achieve correct relay co ordination on a system by means of time alone current alone or a combination of both time and current Grading by means of current is only possible where there is an appreciable difference in fault level between the two relay locations Grading by time is used by some utilities but can often lead to excessive fault clearance times at or near source substations where the fault level is highest For these reasons the most commonly applied characterist
150. lowing cell programmable LEDs do not flash sequentially The P115 is in PROTECTION MODE NOTE In SETTING CHANGE MODE all functions use the previously stored settings before the SETTING CHANGE MODE was entered Changing of a single setting parameter Go to the required setting cell see section 1 5 1 Press the ENTER key Edit settings Enter PSWD 00000 Using the LEFT RIGHT UP DOWN keys enter the password see section 1 5 1 Press ENTEH to confirm the password and switch to SETTING CHANGE MODE Press ENTER to enter the chosen setting parameter Using the LEFT RIGHT UP DOWN keys set the required value Confirm the change by pressing the ENTER key Switch from SETTING CHANGE MODE to PROTECTION MODE see section 1 5 1 For example press the LEFT and UP keys simultaneously to display the following cell Edit settings Exit press ENTER Press the ENTER key to switch from SETTING CHANGE MODE to PROTECTION MODE The following cell should be displayed Setting change Protected The above cell confirms that settings are password protected and that the P115 is in PROTECTION MODE Additionally the programmable LEDs do not flash sequentially P115 EN GS A41 Getting Started GS 3 12 24 MiCOM P115 Changing the password To change the password first enter the existing password to obtain the appropriate password protection rights Press the DOWN key
151. lse 5 Alarm 6 start I gt 7 start gt gt 8 start gt gt gt 9 start IN 10 start IN gt gt 11 start Iasym gt 12 start AUX1 13 start AUX2 14 tI gt 15 tI gt gt 16 gt gt gt 17 tIN gt 18 tIN gt gt 19 tlasym gt 20 tCBF 21 CBF ext 22 tAUX1 23 tAUX2 24 Trip pulse tP 25 Close CB P115 EN CM A41 Commissioning CM 8 30 32 MiCOM P115 OUTPUT RELAYS CONFIGURATION G2 26 Trip CB 27 CB not Healthy 28 Hardware Warning 29 Start Phase A 30 Start Phase B 31 Start Phase C 32 Start Earth INPUTS CONFIGURATION G2 SETTING GROUP 2 INPUT CONFIGURATION G2 Input L1 Input L2 1 Reverse Input Logic 2 Blocked outputs 3 Reset Latched LEDs 4 Reset Latched Outputs 5 Blocking I gt 6 Blocking gt gt 7 Blocking gt gt 8 Blocking IN 9 Blocking IN gt gt 10 Blocking Iasym gt 11 Blocking AUX1 12 Blocking AUX2 13 Blocking CBF 14 AUX1 15 AUX2 16 CBF ext 17 CB Status 52A 18 CB Status 52B 19 CB not Healthy 20 Setting Group 2 Commissioning P115 EN CM A41 MiCOM P115 CM 8 31 32 LEDs CONFIGURATION G2 ern LED3 1 04 LED5 LED6 LED7 LED8 1 Latched LEDs 2 Protection Trip 3 Alarm 4 Start I gt 5 Start gt gt 6 Start g
152. lt 1 or 2 Word n 8 Fault origin 0 none 1 phase A 2 phase B 3 phase C 4 phases 5 phases A C 6 phases B C 7 phases A B C 8 earth Word n 9 Fault recording starting origin Fault nature code meaning wo Res Reme Communication Database P115 EN CT A41 CT 13 26 40 MiCOM P115 2 4 13 1 2 4 13 2 24 14 Word 10 Fault value current nominal value Word n 11 Phase current value nominal value Word 12 Phase B current value nominal value Word n 13 Phase C current value nominal value Word n 14 Earth current value nominal value Word n 15 Acknowledge of fault 0 fault non acknowledged 1 fault acknowledged Calculation formula for phase current values Line phase current value primary value phase sampled value e g word 10 11 12 or 13 line primary CT ratio address 0120h Line CT sec address 0121h A 10 Calculation formula for earth current values The formula depends of nominal earth current 0 01 to 2 len and 0 05 10len range Line earth current value primary value earth sampled value e g word 10 or 14 line primary CT ratio address 0122h Line CT sec address 0123h A 1000 0 2 to 40 len range Line earth current value primary value earth sampled value e g word 10 or 14 line primary CT ratio address 0122h Line CT sec address 0123h A 10 Page 3Eh most older Fault record
153. m nesso mzour Rene sass sonnas Jos I je m o o pw Joe p e e m mu Je P Thesen _ orso enera senings tangua fe 0142 Default display wm Depiy Reset Jue p fs MEINES 2 F13 essre Reseed Communication Database P115 EN CT A41 MiCOM P115 CT 13 13 40 2 4 4 Page 2h setting Group 1 Access in reading and in writing range 0200 0201 0202 0203 eni 0204 0206 020F 0210 0211 0213 0214 0215 0221 Li 0231 IN gt Threshold ie Ji tIN gt TMS TD 21020000 1 IN gt Delay Type 0 to 12 25 0241 IN gt gt Threshold 4 to 1 10000 Lo MENT NN ms CS _ bun 024310 024F 0250 0251 0252 0253 to 025F 0260 gt F16 Communication Database P115 EN CT A41 CT 13 14 40 MiCOM P115 Address Description Default tAUX1 0 to 20000 0 2 0 2 0261 0262 0269 1 100 s reeves Tremor Ine pu 0290 Setting group 1 Reverse Input Logic 0 to 1 Inputs I gt 0295 Blocking 1 gt gt IN gt 1 100 s In 100 len 100 20 0272 0273 F F F F F F F F F F F bts F35 bits bits 0296 bits 0297 16 16 35 35 35 35
154. me delay in relay operation is calculated with a mathematical formula which depends on the relay current and TMS IEC and UK or TD IEEE ANSI and US values There are twelve inverse time characteristics available Sl Standard Inverse Time Characteristic IEC e VI Very Inverse Time Characteristic IEC e El Extremely Inverse Time Characteristic IEC e LTI Long Time Inverse Characteristic UK e STI Short Time Inverse Characteristic Schneider Electric e RC Rectifier Characteristic UK e Medium Inverse Time Characteristic IEEE ANSI e Very Inverse Time Characteristic IEEE ANSI e El Extremely Inverse Time Characteristic IEEE ANSI e CO2 Short Time Inverse Characteristic US e CO8 Inverse Characteristic US Electromechanical Inverse Characteristic The mathematical formulae and curves for the twelve Inverse Time characteristics available with the P115 are presented in chapter OP Operation P115 EN 41 Application Notes AP 6 8 22 MiCOM P115 2 2 Protection of silicon rectifiers P0799ENa Figure 2 Protection of silicon rectifiers 10000 1000 _ 100 Typical load area m Instantaneous o c E Protection curves 10 Typical thermal limit 1 0 1 1 2 3 4 5 6 7 8 Multiple of rated current PO802ENa Figure 3 Matching curve to load and thermal limit of rectifier The rectifier protection featur
155. metry overcurrent stage flashing start tAUX1 Time delay tAUX1 elapsed flashing start tAUX2 Time delay tAUX1 elapsed flashing start CBF fail Trip of Circuit Breaker Failure function CB ext Trigger of external trip tCB not Healthy Input configured to this function detects a problem with CB for example spring problem too low pressure etc Signaling is active after settable time delay GLOBAL SETTINGS CIRCUIT BREAKER not Healthy Setting Group 1 2 Setting Group 1 2 active Start Phase A Start of the phase overcurrent stage set to trip in phase A Start Phase B Start of the phase overcurrent stage set to trip in phase B Start Phase C Start of the phase overcurrent stage set to trip in phase C Start Earth Start of the e f overcurrent stage set to trip Every LED can be configured to be latching or self resetting SETTING GROUP 1 LEDS CONFIGURATION G1 Latched LEDs If LED is configured for latching the resetting mode can be set LEDs reset by manual reset GLOBAL SETTINGS LOC LEDs Reset by Start 0 No LEDs reset by any protection start set for CB tripping or manual reset GLOBAL SETTINGS LOC LEDs Reset by Start 1 Yes External indication of a fault can be made via an external Flag Indicator available in Schneider Electric offer FI10 which should be connected to terminals 27 28 Getting Started P115 EN GS A41 MiCOM P115 GS 3 5 24 COFN fo Jongh W
156. munity to Radiated Electromagnetic Energy EN 60255 22 3 2000 Class Test field strength frequency band 80 to 1000 MHz 10 V m Test using AM 1 kHz 80 Radiated Immunity from Digital Radio Telephones EN 60255 22 3 2000 10 V m 900 MHz 100 AM 200 Hz 50 square wave Immunity to Conducted Disturbances Induced by Radio Frequency Fields EN 61000 4 6 1996 Level 3 Disturbing test voltage 10 V 150 Hz to 80 MHz 8096 AM 1 kHz P115 EN TD A41 TD 2 4 8 Power Frequency Magnetic Field Immunity IEC 61000 4 8 1994 Level 4 30 A m applied continuously 300 A m applied for 3 s Conducted Emissions EN 55022 2006 0 15 0 5 MHz 79 dBuV quasi peak 66 dBuV average 0 5 30 MHz 73 dBuV quasi peak 60 dBuV average Radiated Emissions EN 55022 2006 30 230 MHz 40 dBuV m at 10 m measurement distance 230 1 GHz 47 dBuV m at 10 m measurement distance EU Directives EMC Compliance 2004 106 EC Compliance to the European Commission Directive on EMC is claimed Product Specific Standards were used to establish conformity EN50263 2000 Product Safety 2006 95 EC Compliance with European Commission Low Voltage Directive Compliance is demonstrated by reference to product safety standard EN60255 27 2005 Mechanical Robustness Vibration Test EN 60255 21 1 1996 Response Class 1 Endurance Class 1 Shock and Bump EN 60255 21 2 1996 Shock response Class 1 Shock withstand Class 1
157. n is to be used an IEC Extremely Inverse El time characteristic would normally be chosen Finally a suitable time multiplier setting TMS must be calculated and entered MV LV transformer application Example Transformer Snom 1000 kVA Unom 6 kV CT ratio 100 A 1 A I S _ 1000KVA 96A mm B U 3 6kV Where I m nominal current of the transformer Som power of the transformer U m nominal phase phase voltage Short circuit I gt gt Primary value setting 1 5kA I gt gt current stage 1500 100 15 In I set value 15 Application Notes P115 EN AP A41 MiCOM P115 AP 6 7 22 Where I _ set _ value setting value of the short circuit overcurrent stage gt gt Overcurrent I gt Overcurrent stage I gt should be set above the normal load current If the primary setting value of I gt is equal to 172 A the set value is calculated as follows I 172A 100A z 1 72 In DT threshold The first and the second stage of the overcurrent characteristic for phase current I gt I2 and e f current IN gt can be configured with a definite time DT delay or an IDMT characteristic The third O C stage 1 gt gt gt and the second e f IN gt gt stage are DT only IDMT threshold The first and the second phase I gt I gt gt and e f IN gt overcurrent threshold can be selected with an independent definite maximum time IDMT characteristic The ti
158. n relay The capacitors are loaded by a current or the auxiliary voltage The duration of the trip pulse is 50 ms The pause between the individual pulses depends on the impedance of the tripping coil flag indicator coil flag indicator and on the current level The pulse lasts as long as the activation threshold is exceeded Technical Data MiCOM P115 Output Contacts General purpose relay outputs for signaling tripping and alarming Rated voltage 250V Continuous current 5A Short duration current 25 A for3 s Making capacity 150 A for 30 ms Breaking capacity DC 50 W resistive DC 25 W inductive L R 40 ms AC 1250 VA resistive cos unity AC 1250 VA inductive cos 0 7 Response to command lt 10 ms Durability Loaded contact 10 000 operations minimum Unloaded contact 100 000 operations minimum Environmental Conditions Ambient Temperature Range EN 60255 6 1994 Operating temperature range 20 C to 60 C 4 F to 140 F Temporary permissible temperature 40 C to 85 C 85 F to 185 F with additional errors Storage and transit 25 C to 70 C or 13 F to 158 F Ambient Humidity Range IEC 60068 2 78 2001 56 days at 93 relative humidity and 40 C Per EN 60068 2 30 2005 Damp heat cyclic six 12 12 hour cycles 93 RH 25 to 55 C Type Tests Insulation EN 60255 5 2001 Insulation resistance gt 100MQ at 500 Vdc Using only electronic brushless insulation test
159. n the Safety section of this manual the maximum allowable fuse rating of 16A is quoted To allow time grading with fuses upstream a lower fuse link current rating is often preferable Use of standard ratings of between 6A and 16A is recommended Low voltage fuse links rated at 250V minimum and compliant with IEC60269 2 general application type gG with high rupturing capacity are acceptable This gives equivalent characteristics to HRC red spot fuses type NIT TIA often specified historically The table below recommends advisory limits on relays connected per fused spur This applies to the MiCOM P115 as these have inrush current limitation on switch on to conserve the fuse link Maximum Number of MICOM P115 Relays Recommended Per Fuse Battery Nominal Voltage 6A 10 A Fuse 15 16 A Fuse Fuse Rating 16 A 24 to 48 Vac dc 2 4 6 Not permitted 60 to 240 Vac 60 to 250 Vdc 6 10 16 Not permitted Alternatively miniature circuit breakers MCB may be used to protect the auxiliary supply circuits Measurements and Recording P115 EN MR A41 MiCOM P115 MEASUREMENTS AND RECORDING Date 20 February 2009 Hardware Suffix A Software Version 1D Connection Diagrams 10P1150D P115 EN MR A31 Measurements and Recording MR 7 2 4 MiCOM P115 Measurements and Recording MiCOM P115 CONTENTS 1 MEASUREMENTS AND RECORDING 1 1 Introduction 1 2 Event records 1 3 Fault records 1 4 Me
160. nced overcurrent protection has definite time DMT time delayed characteristics Current unbalance is derived from the 3 phase currents in the following way Pod f 3 Letty tle 3 Vat 1 I 3 I 1 max I Where I RMS value in phase Ig RMS value in phase B I RMS value in phase C External Trip via Opto Input For some applications it is necessary to issue a CB trip via a binary input Any input configured to AUX1 or AUX2 can be used to that effect Tripping is instantaneous Auxiliary voltage connected to such a configured Input energizes output relays configured for any trip or AUX1 and or AUX2 function The Low Energy Trip Coil is activated and configured to any trip or AUX1 and or AUX2 function Blocked overcurrent scheme logic Each stage of the phase protection element can be blocked via an appropriately configured binary input set to Blocking scheme function Reset of latched LEDs and outputs How latched LEDs and outputs are reset is determined by the inputs assigned to the resetting of latched LED Output resets can be made via external inputs pressing the C clear key on the P115 s front panel if LCD display shows default window or via the communication port Circuit Breaker Failure Function CBF Protection current stages configured to trip tI gt tl gt gt gt tIN gt tIN gt gt tlasym gt CBF Ext binary in
161. ndicator output Ensure that the Flag indicator is connected to terminals 27 and 28 Reset the Flag indicator Connect a multimeter with recording of maximum dc voltage value to terminals 27 and 28 Apply a current of twice the setting for I The Flag indicator will be triggered when the gt time delay elapses Record the maximum voltage value measured by the multimeter The value should be 24 Vdc to 26 4 Flag indicator should be tripped P115 EN CM A41 Commissioning CM 8 16 32 MiCOM P115 6 COMMISSIONING TEST RECORD Date Engineer Station Circuit System Frequency Hz P115 Front Plate Information Overcurrent protection relay MiCOM P115 Model number Serial number Test Equipment Used This section should be completed to allow future identification of protective devices that have been commissioned using equipment that is later found to be defective or incompatible but may not be detected during the commissioning procedure Model Injection test set Serial No Model Insulation tester Serial No Type Setting software T i Version Commissioning P115 EN CM A41 MiCOM P115 CM 8 17 32 Delete as appropriate 5 Have all relevant safety instructions been followed Yes No 1 Product Checks 1 1 With the relay de energized 1 1 1 Visual inspection 1 1 1 1 Relay damaged Yes O N O 1 1 1 2 Rat
162. nge Menu Text Default Setting Step Size Min Max IN Disabled Disabled Enable Trip Enable Alarm Setting for Disable or enable of protection element It is possible to enable for tripping CB Enable Trip or enable for an Alarm signal only Enable Alarm If the protection element is Enable Trip configured it means that it is set to the General Trip Command Protect Trip which can be used in I O configuration If the protection element is Enable Alarm it means that it is set to the General Alarm Command Alarm which can be used in I O configuration IN Threshold 0 1 x Ien 0 01 x Ien 0 2 x Ien 0 01 x Ien Pick up setting for first stage e f overcurrent element For dynamic range ordering option 0 01 2len where len nominal current for e f input IN Threshold 0 5 x Ien 0 05 x Ien 1 0 x Ien 0 01 x Ien Pick up setting for first stage overcurrent element For dynamic range ordering option 0 05 10len where len nominal current for e f input IN Threshold 1xlen 0 2 x Ien 4 0 x Ien 0 01 x Ien Pick up setting for first stage e f overcurrent element For dynamic range ordering option 0 2 40len where len nominal current for e f input DMT IEC SI IEC IEC El UK LTI Delay Type IN gt IEC SI UK STI UK RC RI IEEE MI IEEE VI IEEE EI US CO2 US CO8 Setting for the tripping characteristic for the first stage e f overcurrent element
163. nify whether the particular condition is operational or has reset P115 EN MR A41 Measurements and Recording MR 7 4 4 MiCOM P115 1 3 1 4 Protection element trips Any operation of protection elements a trip condition will be logged as an event record consisting of a text string indicating the operated element and an event value Again this value is intended for use by the event extraction software such as MICOM S1 Fault records Each fault record is generated with time stamp The following data is recorded for any relevant elements that operated during a fault and can be viewed in each of the last 5 fault records i Event Text the reason for a trip Phase Overcurrent I gt trip 1 gt gt trip gt gt gt trip IN gt trip IN gt gt trip lasym gt trip CB Fail trip AUX1 trip AUX2 trip CB Ext trip binary input configured to start the CB Fail logic ii Event Value Per phase record of the current value during the fault Ip and measured Fault records are stored in non volatile memory FRAM memory This type of memory does not require any maintenance no battery inside the P115 Fault records are stored without any time limitation even if the P115 is not supplied from any power source Measurements The relay produces a variety of directly measured power system quantities IC RMS values IN measured fundamental harmonic only E F analogue input lasym calculated maximal differenc
164. not the case before connecting the field voltage otherwise damage to the relay may result If an external 24 27 V 30 34 V 48 54 V 110 125 V 220 250 V supply is being used it will be directly connected to the relays optically isolated inputs If an external supply is being used then it must be energized for this test but only if it has been confirmed that it is suitably rated with less than 1296 ac ripple Default factory settings L1 binary input not configured L2binary input not configured Reverse Input Logic indicates the low state of the Binary Input triggered by a programmable function P115 EN CM A41 Commissioning CM 8 10 32 MiCOM P115 4 2 3 4 2 4 4 2 4 1 Output relays To check output contacts it is necessary to carry out a functional test of the entire configuration NOTE It should be ensured that thermal ratings of anything connected to the output relays during the contact test procedure are not exceeded by the associated output relay being operated for too long It is therefore advised that the time between application and removal of the contact test is kept to the minimum Default factory settings output Any Trip no latching no Reverse output logic 2 output not configured RL3 output not configured output not configured Reverse Output Logic means that after powering the P115 contacts are closed Output triggering via a programmable function opens the cont
165. nsumption of P115 relays The MiCOM P115 s self and dual powered hardware versions with identical ac burden at their current inputs have a minimum self supply starting current of 0 2 In This minimum level of current is needed on at least one phase in order to enable the MiCOM relay to be correctly self powered and thus ensure the full capability of its protection functions CAUTION THE FOLLOWING ARE THERMAL CHARACTERISTICS e 3Incontinuous rating e 40 In during 100 s e 100 In during 1 s P115 EN AP A41 Application Notes AP 6 18 22 MiCOM P115 3 3 The P115 s current input resistance depends on the value of the current Table 2 shows the resistance for a single current input per P115 In 1 A 5 A and common connection for a single current input per P115 current transformer WA 25 For phase phase and phase earth fault analysis it is necessary to take into account a double value of the resistance as shown in Table 2 Rp I for a single current input In 1A In 5 A In 1 A WA25 Table 2 P115 current input resistance Calculation of required CT for MiCOM P115 It is not possible to recommend any CT without detailed information The decision needs to be based on calculation The following parameters have to be considered e Type of CT nominal power nominal current and current ratio internal resistance nominal accuracy limit factor class and construction e Resistanc
166. ntation of the MODBUS protocol P115 EN CT A41 MiCOM P115 Master slave protocol all exchange understands a master query and a slave response Frame size received from MiCOM P115 Dual powered relay Frame transmitted by the master query Slave number Function code Information CRC1 6 1 byte 1 byte n bytes 2 bytes FFh 1 10h Slave number The slave number is situated between 1 and 255 A frame transmitted with a slave number 0 is globally addressed to all pieces of equipment broadcast frame Function code Requested MODBUS function 1 to 16 Information Contains the parameters of the selected function CRC16 Value of the CRC16 calculated by the master Note The MiCOM relay does not respond to globally broadcast frames sent out by the master Format of frames sent by the MiCOM relay Frame sent by the MiCOM relay response Slave number Function code Data CRC16 1 byte 1 byte n bytes 2 bytes 1 FFh 1 10h Slave number The slave number is situated between 1 and 255 Function code Processed MODBUS function 1 to 16 Data Contains reply data to master query CRC 16 Value of the CRC 16 calculated by the slave Communication Database P115 EN CT A41 MiCOM P115 CT 13 7 40 2 3 2 Messages validity check When MiCOM P115 relay receive a master query it validates the frame e lf the CRC is false the frame i
167. o L1 or L2 input Ensuring that the correct opto input L1 terminals 13 and 15 or L2 terminals 14 and 15 nominal voltage is applied and correct polarity connect the field supply voltage to the appropriate terminals for the input being tested All red LEDs should be lit within 1 s Default LEDs setting both Setting Groups LED3 not configured LED4 not configured LED65 not configured LED6 not configured LEDT not configured 1 08 not configured Binary inputs This test checks that all the binary inputs on the relay are functioning correctly The binary inputs should be energized one at a time see external connection diagrams P115 EN IN for terminal numbers The P115 has a display so it is possible to see the state of the binary inputs by going to theCOMMISSIONING Opto Status window in the menu by using S1 S amp R Modbus Measurement Viewer software Refer to the 1 software user manual for details If it is not possible to use Measuring Viewer software it is necessary to check the binary inputs by means of a functional test of the entire configuration Ensuring that the correct opto input nominal voltage is applied and correct polarity connect the field supply voltage to the appropriate terminals for the input being tested NOTE The binary inputs may be energized from an external dc auxiliary supply e g the substation battery in some installations Check that this is
168. odern test equipment may contain many of the above features in one unit P115 EN CM A41 Commissioning 8 6 32 MiCOM P115 4 PRODUCT CHECKS These product checks cover all aspects of the relay and should be carried out to ensure that the unit has not been physically damaged prior to commissioning that it is functioning correctly and that all input quantity measurements are within the stated tolerances If the application specific settings have been applied to the relay prior to commissioning it is advisable to make a copy of the settings to allow their restoration later This could be done by e Obtaining a setting file from the customer e Extracting the settings from the relay itself this again requires a portable PC with appropriate setting software e Manually creating a setting record This could be done using a copy of the setting record located at the end of this chapter to record the settings As the relay s menu is scrolled through sequentially via the front panel user interface With the relay de energized The following group of tests should be carried out without powering the P115 and with the trip circuit and flag indicator isolated The current transformer connections must be isolated from the relay for these operations to be carried out WARNING NEVER OPEN CIRCUIT THE SECONDARY CIRCUIT OF A CURRENT TRANSFORMER SINCE THE HIGH VOLTAGE PRODUCED MAY BE LETHAL AND COULD DAMAGE INSULATION The line c
169. of event An event may be a change of state of a control input or output relay a trip condition etc The following sections show the various items that constitute an event Change of state of binary inputs If one or more of the binary inputs has changed state since the last time that the protection algorithm ran the new status is logged as an event The information is available if the event is extracted and viewed via a PC Change of state of one or more output relay contacts If one or more of the output relay contacts have changed state since the last time that the protection algorithm ran then the new status is logged as an event The information is available if the event is extracted and viewed via PC Relay alarm conditions Any alarm conditions generated by the relays will also be logged as individual events The following table shows examples of some of the alarm conditions and how they appear in the event list Alarm Condition Event Text Event Value Auxiliary Supply Fail Vx Fail ON OFF Bit position 0 in 32 bit field CT Supply Fail CT Supply Fail ON OFF Bit position 1 in 32 bit field The above table shows the abbreviated description that is given to the various alarm conditions and also a corresponding value between 0 and 31 This value is appended to each alarm It is used by the event extraction software such as S1 to identify the alarm Either ON or OFF is shown after the description to sig
170. of how to access the settings database stored within the relay P115 ENST Settings List of all relay settings including ranges step sizes and defaults together with a brief explanation of each setting P115 EN OP Operation A comprehensive and detailed functional description of all protection and non protection functions P115 EN AP Application Notes This section includes a description of common power system applications of the relay calculation of suitable settings some typical worked examples and how to apply the settings to the relay P115 EN MR Measurements and Recording Detailed description of the relays recording and measurements functions P115 EN CM Commissioning Instructions on how to commission the relay comprising checks on the calibration and functionality of the relay P115 EN MT Maintenance A general maintenance policy for the relay is outlined P115 EN TS Troubleshooting Advice on how to recognize failure modes and the recommended course of action Includes guidance on who at Schneider Electric to contact for advice P115 EN SG Symbols and Glossary List of common technical abbreviations found within the product documentation P115 ENIN Installation Recommendations on unpacking handling inspection and storage of the relay A guide to the mechanical and electrical installation of the relay is provided incorporating earthing recommendations All external wiring connections to the relay are indicated
171. olumn 1 Manual Reset this option means that if an alarm signal has disappeared information is still available in the ALARM STATUS column until it is reset in the ALARM STATUS Alarm Reset cell Settings P115 EN ST A41 MiCOM P115 ST 4 25 32 3 2 SETTING GROUP SELECT Menu Text Default Setting Available Settings 1 Group 1 Setting Group 1 Group 1 2 Group2 This cell is used to change the current setting group t Change Settings 0 00 to 200s step G1 gt G2 0 01s This cell is used to set the time delay changing between the setting Group 1 and Group 2 0 00s No Operation Copy Settings No Operation Copy G1 gt G2 Copy G2 gt G1 When the G1 G2 command in this cell is issued G1 will be copied to the G2 group the 02 61 command in this cell is issued G2 will be copied to the G1 group P115 EN ST A41 Settings ST 4 26 32 MiCOM P115 3 3 CT RATIO Menu Text Default Setting SRM Step Size Min Max Line CT Primary 1 000 A 1 30k 1 In 1A Sets the phase current transformer input s primary current rating Line CT Primary 5 000 A 5 30k 1 In 5A Sets the phase current transformer input s primary current rating Line CT Sec 1 000 A N A N A N A In 1A Sets the phase current transformer input s secondary current rating Line CT Sec 5 000 A N A N A N A In 5A Sets the phase current transformer input s se
172. on function and resets its time delay Description of bits L2 L1 L2 L1 AUX1 00 0 1 0 1 1 This logic input energizes the AUX1 function Description of bits L2 L1 L2 L1 AUX2 00 0 1 0 1 1 This logic input energizes the AUX2 function Description of bits L2 L1 L2 L1 CBF ext 00 0 1 0 1 1 This logic input energizes the CB ext function Settings P115 EN ST A41 MiCOM P115 ST 4 19 32 Menu Text Default Setting Setting Range Description of bits L2 L1 L2 L1 CB Status 52A 00 0 1 0 1 1 This logic input gives information about the closed state of the CB Information for communication system only Description of bits L2 L1 L2 L1 CB Status 52B 00 0 1 0 1 1 This logic input gives information about the open state of the CB Information for communication system only Description of bits L2 L1 L2 L1 CB not Healthy 00 0 1 0 1 1 After moving the logic input s state from low to high this function blocks a close command and initiates the tCB not Healthy time delay If this time has elapsed the Alarm signal is high Description of bits L2 L1 L2 L1 Setting group 2 00 0 1 0 1 1 The high state of this logic input switches the active setting group to Setting Group 2 Setting Group 1 is active from the low state of Logic Input P115 EN ST A41 Settings ST 4 20 32 MiCOM P115
173. on of the supply plug in the case of plug connected equipment protective conductor earth connection must not be removed since the protection against electric shock provided by the equipment would be lost When the protective earth conductor terminal PCT is also used to terminate cable screens etc it is essential that the integrity of the protective earth conductor is checked after the addition or removal of such functional earth connections For M4 stud PCTs the integrity of the protective earth connections should be ensured by use of a locknut or similar The recommended minimum protective conductor earth wire size is 2 5 mme 3 3 for North America unless otherwise stated in the technical data section of the equipment documentation or otherwise required by local or country wiring regulations The protective conductor earth connection must be low inductance and as short as possible All connections to the equipment must have a defined potential Connections that are pre wired but not used should preferably be grounded when binary inputs and output relays are isolated When binary inputs and output relays are connected to common potential the pre wired but unused connections should be connected to the common potential of the grouped connections Before energizing the equipment the following should be checked Voltage rating polarity rating label equipment documentation CT circuit rating ratin
174. onca ra In e oupumomason Cex fois s 0023 to Reserved 002F ms LM LN acon on NM Cru Communication Database P115 EN CT A41 MiCOM P115 CT 13 11 40 Values Default range Value 0030 Remote Phase A current RMS value 0 1 A 100 measurements 60 000 0031 Phase B current RMS value 0 to 1 A100 F1 60 000 0032 Phase C current RMS 0 to 1 A 100 F1 value 60 000 0033 Earth current RMS value 0 to 1 A x 100 F1 60 000 0034 Asymmetry current RMS value 0 to A x 100 F1 60 000 0035 004F Reserved Address Group Description Step Unit Format 0050 Phase A current RMS value 0 In F1 60 000 0051 Phase B current RMS value 0 to 1 In F1 60 000 Phase C current RMS value 0053 Earth current RMS value 0 to 1 len F1 60 000 0054 Asymmetry current RMS value 0 to 1 In F1 60 000 puse cale dedi Communication Database P115 EN CT A41 CT 13 12 40 MiCOM P115 2 4 8 Page 1h MICOM P115 general remote parameters Read and write access 5 75 Values Default 0100 Remote Address 1 to 127 1 F1 1 parameters mm mene low p fr P _ Tre ono mn feee A o o 0112 Fault Trips Nb 01065535 1 1 0 ws ma eme jo ws WWawww 0116 011F Reserved m0 errato umcremay fros ma em o LL Ll m
175. ons For example e With non current operated protection such as CB Ext Here I lt only gives a reliable reset method if the protected circuit would always have load current flowing Detecting drop off of the initiating protection element might be a more reliable method e With non current operated protection such as CB Ext Again using I lt would rely upon the feeder normally being loaded Also tripping the circuit breaker may not remove the initiating condition from the busbar and hence drop off of the protection element may not occur In such cases the position of the circuit breaker auxiliary contacts may give the best reset method Resetting of the CBF is possible from a breaker open indication from the relay s pole dead logic or from a protection reset In these cases resetting is only allowed provided the undercurrent elements have also reset P115 EN AP A41 Application Notes AP 6 12 22 MiCOM P115 2 6 2 2 6 2 1 APO 2 6 2 2 Typical settings Breaker fail timer settings Typical timer settings to use are as follows Typical delay for 2 cycle CB fail reset mechanism tBF time delay circuit breaker CB interrupting time element Initiating element reset reset time max error in tBF 50 50 10 50 160 ms timer safety margin CB auxiliary contacts CB open opening closing time max 50 10 50 110ms error in tBF timer safety margin CB interrupting time Undercurrent elements
176. orization Form located at the end of this section should be included 2 INITIAL PROBLEM IDENTIFICATION Consult the table below to find the description that best matches the problem experienced then consult the section referenced to perform a more detailed analysis of the problem Symptom Refer To Relay fails to power up Section 3 Maloperation of the relay during testing Section 4 Table 1 Problem identification P115 EN TS A41 TS 10 4 8 3 POWER UP ERRORS P115 can be powered up in the following ways USB connection to PC A Auxiliary voltage Vx A Current inputs Troubleshooting MiCOM P115 If the relay does not appear to power up then the following procedure can be used to determine whether the fault is in the external wiring or in the power supply module of the relay Test Check Action Connect the P115 to a PC via i If the green Healthy LED and display the USB port are lit then proceed to test 2 Disconnect the PC from the ii If the green Healthy LED and display P115 USB port are not lit then proceed to test 2 Apply Vx auxiliary voltage on i If the green Healthy LED and display terminals 11 12 check the are lit then proceed to test 3 Ine TES nomnal ii If the green Healthy LED and display are not lit then send the relay back to 2 Check whether the green Schneider Electric repair centre Healthy LED on the
177. ormers must be defined as a result of calculation analysis refer to Application chapter P115 EN AP Connecting the Tripping Transformers The measured variable is fed into the P115 through the primary winding of the tripping transformer WA 25 O During fault free operation the secondary side of the tripping transformer is short circuited via one of the P115 s contacts In the event of a trip the contact opens and the circuit breaker is actuated see Figures 6 to 9 Tripping CB using energy provided by an external capacitor unit Connecting an E124 Capacitor Trip Unit The MiCOM E124 capacitor trip unit is an auxiliary device typically used to provide energy to the trip coil of a circuit breaker in distribution systems The trip unit can be used in all cases where a battery and charger would otherwise be necessary to trip the circuit breaker Such is the case in substations where there is no auxiliary supply and where protection relays draw their auxiliary power from current and voltage transformer circuits The easiest way to store the energy for trip coils is in a capacitor trip unit see Figure 11 Serially connected with a protection relay it will release its full energy 300V 59J to the trip coil upon closure of the relay s trip contact E124 auxiliary supply 48 230Vac or 48 250Vdc E124 key features e Extended autonomy over 8 days without recharge e Two independent capacitor banks monitored by a microprocessor to guarantee
178. ot connected with this function Settings P115 EN ST A41 MiCOM P115 ST 4 13 32 Menu Text Default Setting Setting Range Step Size Description of bits RL4 RL3 RL2 RL1 RL4 RL3 RL2 RL1 Start I gt 0000 0 1 0 1 0 1 0 1 1 Start I gt function is high if I gt protection element is energized current is above set I gt gt threshold Description of bits RL4 RL3 RL2 RL1 RL4 RL3 RL2 RL1 Start I gt gt 0000 0 1 0 1 0 1 0 1 1 Start I gt gt function is high if I gt gt protection element is energized current is above set I gt gt threshold Description of bits RL4 RL3 RL2 RL1 RL4 RL3 RL2 RL1 Start gt gt 0000 0 1 0 1 0 1 0 1 1 Start I gt gt gt function is high if I gt gt gt protection element is energized current is above set 1 gt gt gt threshold Description of bits RL4 RL3 RL2 RL1 RL4 RL3 RL2 RL1 Start IN gt 0000 0 1 0 1 0 1 0 1 1 Start IN function is high if IN protection element is energized e f current is above set IN threshold Description of bits RL4 RL3 RL2 RL1 RL4 RL3 RL2 RL1 Start IN gt gt 0000 0 1 0 1 0 1 0 1 1 Start IN gt gt function is high if IN gt gt protection element is energized e f current is above set IN gt gt threshold Description of bits RL4 RL3 RL2 RL1 RL4 RL3 RL2 RL1 Start Iasym gt 0000 0 1 0 1 0 1 0 1 1 Start Iasym gt function is high if lasym gt protection element is energized asymm
179. otection trip function LED7 0 LED 7 is not configured to Protection trip function LED6 0 LED 6 is not configured to Protection trip function LED5 0 LED 5 is not configured to Protection trip function LED4 0 LED 4 is not configured to Protection trip function LED3 0 LED 3 is not configured to Protection trip function Description of bits LED 8 7 6 5 4 3 LED 8 7 6 5 4 3 Alarm 000000 0 1 0 1 0 1 0 1 0 1 0 1 1 This LED is lit if any protection element set to Alarm is high Current based protection elements and external protection elements AUX1 AUX2 or CB not Healthy function Description of bits LED 8 7 6 5 4 3 LED 8 7 6 5 4 3 Start I gt 000000 0 1 0 1 0 1 0 1 0 1 0 1 This LED is lit if the phase the current exceed gt sta ge Description of bits LED 8 7 6 5 4 3 LED 8 7 6 5 4 3 Settings P115 EN ST A41 MiCOM P115 ST 4 21 32 Menu Text Default Setting Setting Range one Start I gt gt 000000 0 1 0 1 0 1 0 1 0 1 0 1 1 This LED is lit if the phase current exceeds the 1 gt gt stage Description of bits LED 8 7 6 5 4 3 LED 8 7 6 5 4 3 Start 1 gt gt gt 000000 0 1 0 1 0 1 0 1 0 1 0 1 1 This LED is lit if the phase current exceeds the I gt gt gt stage Description of bits LED 8 7 6 5 4 3 LED 8 7 6 5 4 3 Start IN gt 000000 0 1 0 1 0 1 0 1 0 1 0 1
180. owing a set time delay from the circuit breaker s trip initiation breaker failure protection CBF will operate CBF operation can be used to back trip upstream circuit breakers to ensure that the fault is isolated correctly CBF operation can also resets all start output contacts ensuring that any blocks asserted on upstream protection are removed Reset mechanisms for breaker fail timers It is common practice to use low set undercurrent elements in protection relays to indicate that the circuit breaker s poles have cleared the fault or load current as required This covers the following situations e Where a circuit breaker s auxiliary contacts are defective or cannot be relied upon to definitely indicate that the breaker has tripped e Where a circuit breaker has started to open but has become jammed This may result in continued arcing at the primary contacts with an additional arcing resistance in the fault current path Should this resistance severely limit fault current the initiating protection element may reset Thus reset of the element may not give a reliable indication that the circuit breaker has opened fully For any protection function requiring current to operate the relay uses operation of undercurrent elements I to detect that the necessary circuit breaker poles have tripped and reset the CB fail timers However the undercurrent elements may not be reliable methods of resetting circuit breaker fail in all applicati
181. pplying the settings to the relay Downloading them from a pre prepared setting file to the relay using a portable PC running the 1 support software Communication between the PC and the P115 is done via the relay s USB front port located at the bottom of front panel or rear communications port This method is preferred for transferring function settings as it is much faster and there is less margin for error If a setting file has been created for the particular application and is available on an external memory disk this will further reduce the commissioning time Enter them manually via the relay s operator interface Application notes for the setting values are given in Application Notes chapter P115 EN AP of this manual Demonstrate correct relay operation The above tests have already demonstrated that the relay is within calibration thus the purpose of these tests is as follows determine that the primary protection functions of the relay overcurrent earth fault etc can trip according to the correct application settings To verify the correct assignment of the CB trip outputs and of the flag indicator output by monitoring the response to a selection of fault injections Overcurrent protection testing This test performed on stage 1 of the overcurrent protection function demonstrates that the relay is operating correctly at the application specific settings Connection and preliminaries The testing
182. processed by the relay are rejected with a negative acknowledge message Communication Database P115 EN CT A41 MiCOM P115 CT 13 39 40 3 13 3 14 Relay re initialization In case of relay re initialization the relay send to the master station Availability A message indicating relay start restart FUN lt 160 gt INF 5 TYP 5 COT lt 5 gt message indicating Reset CU FUN lt 160 gt INF 5 TYP 3 COT lt 4 gt or a message indicating Reset FCB FUN lt 160 gt INF 5 2 COT lt 3 gt Each identification message of the relay ASDU 5 contains the manufacturer name in 8 ASCII characters et 4 free characters containing P115 Cyclic Messages ASDU9 Only measurands can be stored in these messages The measurands values are stored in lower levels of communication before polling by master station Several of the fields in the ASDU 9 FUN lt 160 gt INF lt 148 gt and ASDU 3 FUN lt 160 gt INF lt 147 gt are unused in the P115 relay Only la Ib Ic values are stored with a rate such as 2 4 nominal value 4096 Communication Database CT 13 40 40 P115 EN CT A41 MiCOM P115 Firmware and Service Manual P115 EN VH A41 Version History MiCOM P115 FIRMWARE AND SERVICE MANUAL VERSION HISTORY Date 20 February 2009 Hardware Suffix A Software Version 1D Connection Diagrams 10P11504 P115 EN VH A41 Firmware and Service Manual Version History MiCOM P115
183. put starts the set time delay Resetting of the CBF timer is done via undercurrent criteria and protection reset criteria P115 EN OP B41 Operation OP 5 12 12 MiCOM P115 Application Notes P115 EN AP A41 MiCOM P115 APPLICATION NOTES Date 20 February 2009 Hardware Suffix A Software Version 1D Connection Diagrams 10P11504 P115 EN AP A41 Application Notes MiCOM P115 Application Notes P115 EN AP A41 MiCOM P115 AP 6 1 22 CONTENTS 1 INTRODUCTION 3 1 1 Protection of feeders 3 2 APPLICATION OF INDIVIDUAL PROTECTION FUNCTIONS 4 2 1 Overcurrent protection 4 2 1 1 Transformer magnetizing inrush 4 2 1 2 Application of timer hold facility for IEC IEEE US IDMT characteristics 5 2 1 3 Setting guidelines 6 2 1 4 DT threshold 7 2 1 5 IDMT threshold 7 2 2 Protection of silicon rectifiers 8 2 3 Earth fault protection 9 2 8 1 Calculation of the required E F settings 9 2 4 External trip 9 2 5 Blocked overcurrent protection 9 2 6 Circuit breaker fail protection CBF 11 2 6 1 Reset mechanisms for breaker fail timers 11 2 6 2 Typical settings 12 2 7 Minimum tripping time 13 3 CT REQUIREMENTS 14 3 1 Recapitulation of the current transformer s characteristics 14 3 1 1 Characterization of a current transformer 14 3 1 2 Equivalent diagram of a current transformer 16 3 1 3 How to calculate the rated burden in VA of a CT based on its characteristic quantities Vk Ret 16 3 1 4 Definition equivalence for common CTs 17
184. puts and LEDs configuration columns 1 Compatibility Technical Documentation P115 EN M A41 v Z 7 HA Gl td WODIN AJO SIH UOISI9A LVV HA NJ G Id pue Setting File Software Version 1A 1B 1C 1D Relay Software Version Y alld WOOIN AJO SIH 5 enuey 6 pue v 7 HA LVV HA td VH P115 EN VH A41 VH 14 4 4 Firmware and Service Manual Version History MiCOM P115 Customer Care Centre http www schneider electric com CCC Schneider Electric 35 rue Joseph Monier 92506 Rueil Malmaison FRANCE Phone 33 0 1 41 29 70 00 Fax 33 0 1 41 29 71 00 www schneider electric com Publication P115 EN M B41 Publishing Schneider Electric 05 2011 2011 Schneider Electric All rights reserved
185. r the problem is in the binary input itself or the mapping of its signal to the scheme logic functions If the binary input appears to be read correctly then it is necessary to examine its configuration Ensure the voltage rating for the opto inputs has been configured correctly with applied voltage If the binary input state is not read correctly by the relay the applied signal should be tested Verify the connections to the binary input using the correct wiring diagram Next using a voltmeter verify that 8096 opto setting voltage is present on the terminals of the binary input in the energized state If the signal is being correctly applied to the relay then the failure may be on the input card itself NOTE 1 If the P115 is supplied by the USB port only only part of the 1155 electronics necessary to the communication facility is supplied From this reason the inputs status is in high state not dependent on the voltage on the terminals Any action pertaining to binary inputs is blocked 2 The COMMISSIONING Opto Status cell displays the logical state of the inputs not the presence of voltage on their terminals For example if Vx is applied high state on the terminals of a binary input and the Reverse Input Logic is set function active in binary input low state the COMMISSIONING Opto Status cell displays the logical state of the input as low logical state after processing by the Reverse Input Logic function Failure
186. relay does not operate 4 output note the correct external this could indicate a failure of the output connection diagram should be relay contacts note that the self tests verify consulted A continuity tester can that the relay coil is being energized be connected at the rear of the Ensure that the closed resistance is not too relay for this purpose high for the continuity tester to detect Table 3 Failure of output contacts P115 EN TS A41 Troubleshooting TS 10 6 8 MiCOM P115 5 REPAIR AND MODIFICATION PROCEDURE Please follow these 5 steps to return an Automation product to us 1 Get the Repair and Modification Authorization Form RMA Find a copy of the RMA form at the end of this section To obtain an electronic version of the RMA form for e mailing please contact your local Schneider Electric service Fill Fill in only the white part of the form Please ensure that all fields marked M are completed such as Equipment model Model No and Serial No Description of failure or modification required please be specific Value for customs in case the product requires export Delivery and invoice addresses VV ON ON V WV Contact details Send RMA form to your local Schneider Electric contact Receive from local service contact the information required to ship the product Your local service contact will provide you with all the information Pricing details gt RMAn gt Repair centre a
187. reviation of Fault Typically used to indicate faulted phase selection FN Function Gnd Abbreviation of Ground Used in distance settings to identify settings that relate to ground earth faults Current I gt Second stage of phase overcurrent protection Could be labeled 51 2 in ANSI terminology gt gt Third stage of phase overcurrent protection Could be labeled 51 3 in ANSI terminology IN gt Earth Fault current Equals the neutral current measured at the analog input IA Phase A current Might be phase L1 red phase or other in customer terminology IB Phase B current Might be phase L2 yellow phase or other in customer terminology Ic Phase C current Might be phase L3 blue phase or other in customer terminology IDMT Inverse definite minimum time A characteristic whose trip time depends on the measured input e g current according to an inverse time curve In The rated nominal current of the CT Software selectable as 1 amp or 5 amp to match the line CT input len The rated nominal current of the E F CT Software selectable as 1 amp or 5 amp to match the line E F CT input IN Neutral current or residual current This results from an external summation of the three measured phase currents P115 EN SG A41 Symbols and Glossary SG 12 2 2 MiCOM P115 Symbols Explanation Inst An element with instan
188. rieval a Automatic fault record acknowledgement on fault retrieval The bit12 of the remote order frame format F38 mapping address 0400h shall be set to 0 On fault retrieval this fault record is acknowledged Communication Database P115 EN CT A41 MiCOM P115 CT 13 33 40 b Non automatic fault record acknowledgement on fault retrieval The bit12 of the remote order frame format F38 mapping address 0400h shall be set to 1 On fault retrieval this fault record is not acknowledged To acknowledge this fault an other remote order shall be sent to the relay The bit 14 of this frame format F38 mapping address 0400h shall be set to 1 2 4 18 2 Request to retrieve a dedicated fault record 03h Refer to 00 OFh mapping Note This fault value retrieval does not acknowledge this fault record Communication Database P115 EN CT A41 CT 13 34 40 MiCOM P115 3 3 1 3 2 IEC60870 5 103 INTERFACE The 60870 5 103 interface is a master slave interface with the relay as the slave device This protocol is based on the VDEW communication protocol The relay conforms to compatibility level 2 compatibility level 3 is not supported The following IEC60870 5 103 facilities are supported by this interface e lnitialisation Reset e Time Synchronisation e Event Record Extraction e General Interrogation e Cyclic Measurements e General Commands Physical connection and link layer
189. rip configured it means that it is set to the General Trip Command Protect Trip which can be used in I O configuration If the protection element is Enable Alarm it means that it is set to the General Alarm Command Alarm which can be used in configuration I gt gt Threshold 1 4 x In 0 2 x In 4 0 x In 0 01 x In Pick up setting for second stage of the overcurrent element P115 EN ST A41 Settings ST 4 6 32 MiCOM P115 Setting Range Menu Text Default Setting Step Size Min Max DMT IEC SI IEC VI IEC El UK LTI UK Delay Type I gt gt IEC SI STI UK RC RI IEEE MI IEEE VI IEEE El US CO2 US CO8 Setting for the tripping characteristic for this stage overcurrent element gt gt 1 0 02 200 0 01 Setting for the time delay for the definite time setting if selected for this stage element I gt gt TMS 1 0 02 1 6 0 01 Setting for the time multiplier setting to adjust the operating IDMT characteristic time of the IEC UK and RI I gt gt Time Dial 1 0 02 200 0 01 Setting for the time multiplier setting to adjust the operating time of the IEEE US IDMT curves pn PIEVE DMT DMT or IDMT N A Setting to determine the type of reset release characteristic of the IEEE US curves DMT tReset I gt gt Os Os 200s 0 01s Setting that determines the reset release time for definite time reset characteristic I gt gt gt
190. rogrammable LED configuration Switching between setting groups is possible via Configured binary inputs Menu GLOBAL SETTINGS SETTING GROUP SELECT Setting Group Select cell MiCOM S1 setting software SETTING GROUP 1 u v PROTECTION G1 Le PHASE O C 61 50 51 OUTPUT RELAYS INPUTS LEDS CONFIGURATION G1 CONFIGURATION G1 CONFIGURATION G1 Latched 4321 Reverse 21 Latched 876543 outputs 0000 Input Logic 00 LEDs 000000 Reverse 4321 Blocked 21 Protect 876543 outp logic 0000 Outputs 00 Trip 000000 Protect TF4321 Reset 21 876543 Trip 000000 Latchd LEDs 00 Alarm 000000 Any Trip F4321 Reset 21 Start 876543 pulse 00000 Latchd Outp 00 I gt 000000 E GND FAULT G1 ASYMMETRY G1 Ce Fail Ci T UX TIMERS 61 50 51N gt 46 lt gt 50BF P0860ENa Figure 6 SETTING GROUP 1 columns Information about the active setting group is available in menu PARAMETERS Active Set Group cell Information about the active setting group can be displayed via the programmable LEDs by configuring them to that function NOTES 1 If setting groups are to be switched using a binary input this binary input must be configured to setting group switch both in Setting Group 1 and Setting Group 2 It is possible to copy all the parameters from Setting Group 1 to Setting Group 2 or vice versa GLOBAL SETTINGS
191. rotected After restart or applying of power supply the P115 is in Protection Mode This means that all settings are the same as in the relay s operation system are available on the front panel To change any parameters it is necessary to switch the P115 to the SETTING CHANGE MODE The SETTING CHANGE MODE is indicated by the sequential flashing of the programmable LEDs from 3 up to 8 LEDs on the front panel Until it is switched back from the SETTING CHANGE MODE to the PROTECTION MODE or restarted by disconnecting then reconnecting the power supply the P115 uses the setting parameters that were active before the SETTING CHANGE MODE was entered previous settings Getting Started P115 EN GS A41 MiCOM P115 GS 3 9 24 Press the ENTER key after changing a chosen parameter confirmation of change The new value is saved in FRAM memory but the P115 still uses the setting value which was active before the SETTING CHANGE MODE was entered previous settings The new value will be available in the operation system only after the firmware has been reset When the firmware is reset all the settings stored in FRAM memory are loaded into the P115 system When switching from the SETTING CHANGE MODE to the PROTECTION MODE a warm reset is applied The P115 therefore applies the new parameters to the relay s operation system Afterwards the settings available on the front panel those used by the operation system are coherent NO
192. rt using the relay Introduction to the relay Front panel The front panel of the relay is shown in Figure 1 The front panel of the relay includes 16 character by 2 line alphanumeric liquid crystal display LCD a 7 key keypad comprising 4 arrow keys an enter key a clear key a read key 8LEDs a USB port for local communication Indications Fixed Function LEDS Healthy Powering of microprocessor and no hardware problems detected green LED Trip Any Trip by protection criteria And 6 programmable LEDS for the following functions OR logic gt Start of the first phase overcurrent stage gt gt Start of the second phase overcurrent stage gt gt gt Start of the third phase overcurrent stage IN Start of the first e f overcurrent stage gt gt Start of the second overcurrent stage lasym Start of the asymmetry overcurrent stage AUX1 Trigger of AUX1 timer via a binary input AUX2 Trigger of AUX2 timer via a binary input tl Trip of the first phase overcurrent stage flashing start gt gt Trip of the second phase overcurrent stage flashing start gt gt gt Trip of the third phase overcurrent stage flashing start tIN gt Trip of the first e f overcurrent stage flashing start P115 EN GS A41 Getting Started GS 3 4 24 MiCOM P115 tIN gt gt Trip of the second e f overcurrent stage flashing start tlasym Trip of the asym
193. s Rct Rp 1 The nominal load impedance of the CT is Rp Pn We have Vs Ret Is Hence Pn Vs Is Rct In e Fora transformer with in a 5P accuracy class Vs1 Vk 1 6 1 4 Thus Vs1 1 6 1 4 Vk at Is1 equals K In Hence Pn 1 6 1 4 Vk K In Ret In Application Notes P115 EN AP A41 MiCOM P115 AP 6 17 22 3 1 4 3 1 5 3 2 e Foratransformer with a 10P accuracy class Vs2 Vk 1 9 1 4 thus Vs2 1 9 1 4 Vk at Is2 equals K In Hence Pn 1 9 1 4 Vk K In Rct In Definition equivalence for common CTs Since the only constants of a CT are its magnetizing curve its Rct resistance and its transformation ratio it is possible to replace a transformer which Pn1 power in VA is of the 5PK1 type with a transformer which Pn2 power in VA is of the 5PK2 type Given that the values of Vs1 and Rct are known Vs1 Ret Pn1 In K1 In Ret Pn2 In K2 Pi Rct In ohmic loss of CT Pi Pn1 K1 Pi Pn2 K2 Hence K2 Rct In Pn1 Ret In Pn2 K1 How to calculate the knee point voltage Vk of a CT defined in class P e For a transformer with accuracy class of 5P Vs1 Vk 1 6 1 4 Pn 1 6 1 4 Vk K In Ret In Hence Vk 1 4 1 6 Pn In Ret K In e Foratransformer with a precision class 10P Vs2 Vk 1 9 1 4 AP Pn 1 9 1 4 Vk In In Hence Vk 1 4 1 9 Pn In Ret K In Co
194. s extensive as with non numeric electronic or electro mechanical relays In the commissioning of numeric relays it is only necessary to verify that the hardware is functioning correctly and that the application specific software settings have been applied to the relay It is considered unnecessary to test every function of the relay if the settings have been verified by one of the following methods e Extracting the settings applied to the relay using appropriate setting software preferred method e Via the operator interface Unless previously agreed to the contrary the customer will be responsible for determining the application specific settings applied to the relay and for testing of any scheme logic applied by external wiring Blank commissioning test and setting records are provided at the end of this chapter for completion as required Before carrying out any work on the equipment the user should be familiar with the contents of the safety guide SFTY 4L M E11 or later issue or the safety and technical data section of the technical manual and also the ratings on the equipment rating label For safety reasons no work must be carried out on the P115 until all power sources to the unit have been disconnected P115 EN CM A41 Commissioning CM 8 4 32 MiCOM P115 2 SETTING FAMILIARIZATION When commissioning a P115 relay for the first time sufficient time should be allowed to enable the user to become famil
195. s invalid MiCOM P115 relay do not reply to the query The master must retransmit its query Excepting a broadcast message this is the only case of non reply by MICOM P115 relay to a master query e fthe CRC is good but the MiCOM relay can not process the query it sends an exception response Warning frame sent by the MICOM relay response Slave number Function code Warning code CRC16 1 byte 1 byte 1 byte 2 bytes 1 to FFh 81h or 83h or 8Ah or 8Bh pf Slave number The slave number is situated between 1 and 255 Function code The function code returned by the MiCOM relay in the warning frame is the code in which the most significant bit b7 is forced to 1 Warning code On the 8 warning codes of the MODBUS protocol the MiCOM relay manages two of them e code 01 function code unauthorised or unknown e code 03 a value in the data field is unauthorised incorrect data Control of pages being read Control of pages being written Control of addresses in pages Length of request messages CRC16 Value of the CRC16 calculated by the slave Communication Database P115 EN CT A41 CT 13 8 40 MiCOM P115 2 4 MiCOM P115 Dual powered relay database organisation 2 4 1 Description of the application mapping 2 4 4 1 Settings MiCOM P115 application mapping has 9 pages of parameters Page Oh Product information remote signalling measurements Page Ih General remote parameters Page 2h Se
196. sm Power supply Communication Interface RS 485 31 Energy outputs Note An amp uxilary voltage supply is Fiag Indicator amp 27 recommended to have RS 485 communication facilities MiCOM P115 Hardware configuration of WA 25 for Trip element 0 5A or 1A Trip element 0 5 A PO833ENb Figure 7 Connection example for a P115 powered by a WA 25 and with a 3 pole connection A B C Installation P115 EN IN B41 MiCOM P115 IN 12 15 18 Auxiliary Power Supply Vx Current Inputs q Measuring Trip Element 0 5 1 A Communication Interface RS 485 31 Energy outputs Note An auxdiary vollage supply is Flag Indicator ouput 27 recommended to have 5 485 communication facilities MiCOM P115 Hardware configuration of WA 25 for Trip element 0 5A or 1A 5 b2 b2 Trip element 1 Trip element 0 5 A 0834 Figure 8 Connection example for a P115 powered by WA 25 and with a 2 pole connection A C Installation P115 EN IN B41 IN 12 16 18 MiCOM P115 gt Auxiliary Voltage B ac or dc Auxiliary Power Supply Vx Optional connection 12 1 Trip Element Current Inputs a powerful trip 4 Measuring Y YT TT oo for example 4 220Vdc Output Relays Power supply Capacitor Trip Un
197. solated two point RS485 connection 2kV 50Hz e MODBUS line protocol in RTU mode e Communication speed can be configured by an operator dialog in the front panel of the relay Baud rate 4800 9600 38400 57600 115200 Transmission mode of the configured characters by operator dialog Mode 1 start 8 bits 1 stop total 10 bits 1 start 8 bits even parity 1 stop total 11 bits 1 start 8 bits odd parity 1 stop total 11 bits 1 start 8 bits 2 stop total 11 bits Synchronisation of exchanges messages All character received after a silence on the line with more or equal to a transmission time of 3 characters is considered as a firm start Message validity check The frame validity is working with a cyclical redundancy code CRC with 16 bits The generator polynomial is 1 4 X2 4 x x 1010 0000 0000 0001 binary A001h Address of the relays The address of the MiCOM relay on a same MODBUS network is situated between 1 and 255 The address 0 is reserved for the broadcast messages Communication Database MiCOM P115 2 2 MODBUS functions of the MiCOM relays The MODBUS functions implemented on the relays are Function 3 or4 Reading of n words Function 5 Writing of 1 bit Function 6 Writing of 1 word Function 16 Writing of n words P115 EN CT A41 CT 13 5 40 Communication Database CT 13 6 40 2 3 2 3 1 Prese
198. t 00 0 1 0 1 1 The high state of this logic input disables the I gt gt protection element and resets its time delay Description of bits L2 L1 L2 L1 Blocking 1 gt gt gt 00 0 1 0 1 1 The high state of this logic input disables the 1 gt gt gt protection element and resets its time delay P115 EN ST A41 ST 4 18 32 Settings MiCOM P115 Menu Text Default Setting Setting Range EA Description of bits L2 L1 L2 L1 Blocking IN gt 00 0 1 0 1 1 The high state of this logic input disables the IN protection element and resets its time delay Description of bits L2 L1 L2 L1 Blocking IN gt gt 00 0 1 0 1 1 The high state of this logic input disables the IN gt gt protection element and resets its time delay Description of bits L2 L1 L2 L1 Blocking gt 00 0 1 0 1 1 The high state of this logic input disables the Iasym element and resets its time delay Description of bits L2 L1 L2 L1 Blocking AUX1 00 0 1 0 1 1 The high state of this logic input disables the AUX1 protection element with and its time delay Description of bits L2 L1 L2 L1 Blocking AUX2 00 0 1 0 1 1 The high state of this logic input disables the AUX2 protection element and resets its time delay Description of bits L2 L1 L2 L1 Blocking CB Fail 00 0 1 0 1 1 The high state of this logic input disables the CB Fail protecti
199. t gt gt 7 Start IN 8 Start IN gt gt 9 Start lasym gt 10 Start AUX1 11 Start AUX2 12 tI gt 13 tI gt gt 14 gt gt gt 15 tIN gt 16 tIN gt gt 17 tlasym gt 18 CB Fail 19 CB ext 20 tAUX1 21 tAUX2 22 CB not Healthy 23 Setting Group 2 24 Start Phase A 25 Start Phase B 26 Start Phase C 27 Start Earth Commissioning Engineer Customer Witness Date Date P115 EN CM A41 Commissioning CM 8 32 32 MiCOM P115 Maintenance P115 EN MT A41 MiCOM P115 MAINTENANCE Date 20 February 2009 Hardware Suffix A Software Version 1D Connection Diagrams 10P11504 P115 EN MT A41 Maintenance MiCOM P115 Maintenance MiCOM P115 CONTENTS 1 MAINTENANCE 1 1 Maintenance period 1 2 Maintenance checks 1 2 1 Binary Inputs 1 2 2 Outputs 1 2 3 Measurement accuracy 1 3 Method of repair 1 4 Cleaning P115 EN MT A41 MT 9 1 4 P115 EN MT A41 Maintenance MT 9 2 4 MiCOM P115 Maintenance P115 EN MT A41 MiCOM P115 MT 9 3 4 1 MAINTENANCE 1 1 Maintenance period 1 2 1 2 1 1 2 2 1 2 3 It is recommended that products supplied by Schneider Electric receive periodic monitoring after installation In view of the critical nature of protective relays and their infrequent operation it is desirable to confirm that they are operating correctly at regular intervals Schneider Electric protective relays are designed for a life in excess of 20 years MiCOM relays are self monitoring
200. taneous operation i e having no deliberate time delay Abbreviation of Inputs and Outputs Used in connection with the number of opto coupled inputs and output contacts within the relay Abbreviation of Input LD Abbreviation of Level Detector An element responding to a current or voltage below its set threshold LED Light emitting diode Red or green indicator on the relay front panel N Indication of Neutral involvement in a fault i e a ground earth fault N A Not applicable N C A normally closed or break contact Often called a form B contact N O A normally open or make contact Often called a form A contact O P Abbreviation of output Opto An opto coupled logic input Alternative terminology binary input PCB Printed circuit board Ph Abbreviation of Phase Used in distance settings to identify settings that relate to phase phase faults R A resistance Rx Abbreviation of Receive Typically used to indicate a communication receive line pin T A time delay TE A standard for measuring the width of a relay case One inch 5 units TMS The time multiplier setting applied to IEC or UK inverse time curves TD The time multiplier setting applied to IEEE or US inverse time curves Tx Abbreviation of Transmit Typically used to indicate a communication transmit line pin Installation P115 EN IN B41 MiCOM P115 INSTALLATION Date 20 February 200
201. ted by the GI command If a data has just changed before extracted by the Gl the new state is sent to the master station When an event is generated during the cycle the event is sent in priority and the Gl cycle is temporarily interrupted The end of the consists in sending an ASDU 8 to the master station If during a General Interrogation cycle another GI Initialization command is received the precedent answer is stopped and the new cycle started General Commands ASDU 20 Control direction Availability e LEDs Reset This command acknowledge all alarms on Front Panel on P115 products FUN lt 160 gt INF lt 19 gt TYP lt 20 gt COT lt 20 gt lt ADDR gt e Setting group number 1 FUN lt 160 gt INF lt 23 gt TYP lt 20 gt COT lt 20 gt lt ADDR gt e Setting group number 2 FUN lt 160 gt INF lt 24 gt TYP lt 20 gt COT lt 20 gt lt ADDR gt e Trip TC FUN 168 INF lt 1 gt TYP lt 20 gt COT lt 20 gt lt ADDR gt e Close TC FUN lt 168 gt INF lt 2 gt TYP lt 20 gt COT lt 20 gt lt ADDR gt After executing one of these commands the relay sends an acknowledge message which contains the result of command execution If a state change is the consequence of the command it must be sent in a ASDU 1 with COT 12 remote operation If the relay receive another command message from the master station before sending the acknowledge message it will be discarded Commands which are not
202. the acknowledgement is manual else the acknowledgement is automatic In automatic mode the reading of the fault acknowledges automatically the event In manual mode it is necessary to write a specific command to acknowledge the oldest fault set the bit 14 of control word 400 h Characteristics Page Oh can only be read through communication Pages 1h 2h 3h and 4h can be read and write Page 7h can be access in quick reading only Page 8h can be write They are describe more precisely in the following chapters CT Communication Database P115 EN CT A41 CT 13 10 40 MiCOM P115 2 4 2 Page Oh Product information remote signalling measurements Read access only Default 0000 Product Relay description P1 Information characters 1 and 2 0001 Relay description 32 127 1 F10 15 characters 3 and 4 0002 Relay description 32 127 1 F10 characters 5 and 6 0003 Unit reference characters 32 127 1 F10 AR 1 2 0004 Versen o Versen umore I 0010 Remote 0to 15 signalling 0014 Output information Protection 0 to 15 1 bits F28 starting status 0015 Output information Protection 0 to 16 1 bits F29 trip status oes o owe oupuntomaton oss er ho owwnemaosw BO jo eseee pes ws e ome 01055 fos esr oo _ Ovputiniomaton auxr s ospimemaronave oss us re mm owpamomar
203. the asymmetry protection element CB Fail the time elapsed of the CB Fail function Ext triggered binary input configured to CB Ext function tAUX1 time delay of AUX1 function activated via binary input configured to this function tAUX2 time delay of AUX2 function activated via binary input configured to this function tCBF time delay of the Circuit Breaker Failure protection element CB not healthy binary input configured to the CB not healthy function which trigger is delayed beyond the settable not healthy time delay GLOBAL SETTINGS CIRCUIT BREAKER Setting Group 1 P115 works on Setting Group 1 for Setting Group 1 column Setting Group 2 P115 works on Setting Group 2 for Setting Group 2 column Commissioning P115 EN CM A41 MiCOM P115 8 9 32 Start Phase A Indicates that the fault is in phase A starting of o c element Start Phase B Indicates that the fault is in phase B starting of o c element Start Phase Indicates that the fault is in phase C starting of o c element Start Earth Indicates the earth fault starting of e f element 4 2 2 gt gt After establishing the connection between PC and P115 via the USB port the green Healthy LED should be lit permanently it means that the P115 is powered even if P115 is not connected to auxiliary voltage supply The remaining LEDs can be checked via the LEDs Reset function This function can be set t
204. the rising or lowering edge In the list below events only generated on rising edge will be tagged with Communication Database P115 EN CT A41 CT 13 36 40 MiCOM P115 ASDU 1 time tagged message is generated for events The following list of processed events is the list with the private messages option active for all Overcurrent protection functions with the associated FUNCTION Type INFORMATION NUMBER ASDU TYPE CAUSE OF TRANSMISSION and COMMON ADDRESS OF ASDU The corresponding numbers with private messages option inactive are given just below FUN 160 Function type in Public range for Overcurrent Protections compatible FUN 168 Function type in Private range Reserved for Overcurrent Protections Status indications in monitor direction Availability e LEDs reset FUN lt 160 gt INF 19 1 COT lt ADDR gt tY e Setting Group number 1 active FUN lt 160 gt INF lt 23 gt TYP lt 1 gt COT lt 1 gt lt ADDR gt e Setting Group number 2 active FUN 160 INF lt 24 gt TYP lt 1 gt COT lt 1 gt lt ADDR gt e Auxiliary input 1 FUN 160 INF 27 1 COT lt 1 gt lt ADDR gt e Auxiliary input 2 FUN 160 INF 28 1 COT lt 1 gt lt ADDR gt e Logical input 1 FUN lt 168 gt INF 160 1 COT lt 1 gt lt ADDR e Logical input 2 FUN lt 168 gt INF lt 161 gt TYP 1 COT lt 1 gt lt ADDR gt e Logical output 1 FUN 168 INF 176
205. tion of the technical manual and also the ratings on the equipment rating label For safety reasons no work must be carried out on the P115 until all power sources to the unit have been disconnected P115 EN 41 Application Notes AP 6 4 22 MiCOM P115 2 2 1 APPLICATION OF INDIVIDUAL PROTECTION FUNCTIONS The following sections detail individual protection functions in addition to where and how they may be applied Each section provides some worked examples on how the settings are applied to the relay low energy Output for flag trip output indicator Flag indicator Auxiliary supply V gt Logic inputs Phase CTs Logic outputs Earth CT Local communication Optional Remote communication P0801ENa Figure 1 P115 single line functional diagram all options are included Overcurrent protection Overcurrent relays are the most commonly used protective devices in any industrial or distribution power system They provide main protection to both feeders and busbars when unit protection is not used They are also commonly applied to provide back up protection when unit systems such as pilot wire schemes are used There are a few application considerations when applying overcurrent relays Transformer magnetizing inrush When applying overcurrent protection to the MV side of a power transformer it is usual to apply a high set instantaneous overcurrent element in addition to the tim
206. ts in which case the fault could self power the protection through the earth current input Disadvantage The core CT must be appropriately dimensioned that is it must have few turns to ensure good sensitivity Connection to 2 phases CTs core balanced CT Refer to Application chapter P115 EN AP Figure 5 Advantage Only 2 CTs are used resulting in saving one phase CT The third phase is reformed by the wiring Disadvantage The phase and earth CTs must be suitably overdimensioned The core CT must be connected to the supply input of the earth current input terminals 7 9 We assume that the system is balanced The earth current input is connected to the summation of the 3 phase CTs Refer to Application chapter P115 EN AP Figure 3 Advantage In this case the earth current is detected by summing the 3 phase currents the use of a core CT is therefore not required The summing operation is performed at terminals 8 9 of the earth current input It is not necessary to supply the relay via the earth current input However an additional supply shown Figure 3 via the earth fault current will provide more energy to the P115 Therefore the CT starts supplying the P115 when the current drops below 0 2 len refer to the Technical Data chapter P115 EN TD Disadvantage Less sensitivity than the core CT connection P115 EN AP A41 Application Notes AP 6 22 22 MiCOM P115 5 AUXILIARY SUPPLY FUSE RATING I
207. tting group 1 remote parameters Page 3h Setting group 2 remote parameters Page 4h Remote controls Pages 5h 6h Reserved pages Pages 7h Quick reading byte Pages 8h Time synchronisation 2 4 1 2 Event records 2 4 1 3 To upload the event records two requests are allowed Page 35h Request to upload an event record without acknowledge of this event Used addresses 3500h EVENT 1 3563h EVENT 100 Page 36h Request to upload the non acknowledged oldest stored event record Two modes are available for the acknowledgement automatic acknowledgement or manual acknowledgement The mode depends of the state of bit 12 of telecommand word address 400 h If this bit is set then the acknowledgement is manual else the acknowledgement is automatic In automatic mode the reading of the event acknowledges the event In manual mode it is necessary to write a specific command to acknowledge the oldest event set the bit 13 of control word 400 h Fault records Page 37h Page dedicated to upload fault record Used addresses 3700h FAULT 1 3701h FAULT 2 3704h FAULT 5 Page 3Eh Request to upload the non acknowledged oldest stored fault record Two modes are available for the acknowledgement automatic acknowledgement or manual acknowledgement Communication Database P115 EN CT A41 MiCOM P115 CT 13 9 40 2 4 1 4 The mode depends of the state of bit 12 of telecommand word address 400 h If this bit is set then
208. u are at the same electrostatic potential as the equipment by touching the case Handle analog input modules by the front panel frame or edges of the circuit boards Printed circuit boards should only be handled by their edges Avoid touching the electronic components printed circuit tracks or connectors Do not pass the module to another person without first ensuring you are both at the same electrostatic potential Shaking hands achieves equipotential Place the module on an anti static surface or on a conducting surface that is at the same potential as you If it is necessary to store or transport printed circuit boards removed from the case place them individually in electrically conducting anti static bags In the unlikely event that you are making measurements on the internal electronic circuitry of a relay in service it is preferable that you are earthed to the case with a conductive wrist strap Wrist straps should have a resistance to ground between 500 to 10 MO If a wrist strap is not available you should maintain regular contact with the case to prevent a build up of electrostatic potential Instrumentation which may be used for making measurements should also be earthed to the case whenever possible More information on safe working procedures for all electronic equipment can be found in BS EN 100015 Part 1 1992 It is strongly recommended that detailed investigations on electronic circuitry or modification work should
209. ult NOTE 1 A back up clock capacitor is charged from an auxiliary voltage supply terminals 11 12 only The capacitors energy allows storage of real time information for up to 2 days When the back up capacitor is completely discharged it takes less than 10 minutes to recharge it completely 2 If the clock has no real time information the back up capacitor is recharged and the current exceeds the minimum current required for operation the real time is set to 01 01 2008 00 00 00 Therefore events are dated with reference to this start time value P115 EN OP B41 OP 5 4 12 Operation MiCOM P115 If RS485 communications are required it is recommended to supply P115 from the auxiliary voltage in order to ensure that real time information is used in the event and fault recorders The FRAM memory settings events fault records latched LEDs and outputs information is a non volatile memory The USB integrates electronic boards only to allow communications with the P115 via the user interface HMI or the setting software Therefore the status of inputs and outputs is not read via the P115 system The status information available on the menu is set to its default value Healthy information available on the Healthy LED refers to the electronic part supplied via the USB port In case of any hardware problems the Healthy LED is blinking If the Healthy LED is not lit this means that no source of supply is avai
210. urrent transformer The characteristics of a protection relay CT are based on e Its rated output burden expressed in its relevant accuracy class 5P or and the accuracy limit current 5 In 10 In 15 In 20 In The accuracy limit factor K is the ratio between the precision limit current and the nominal current rating e Naturally the transformation ratio of the CT is to be added to this This ratio is the ratio of the primary current to the secondary current T1 I2 The secondary current rating is generally 1 A or 5 A e Other characteristics such as the insulating voltage or the thermal behavior are also taken into account Standard BS 3938 proposes a specification identical to that of IEC 185 for class P transformers The CT is characterized in accordance with a second class known as X class Cx which in addition to the calculated ratio requires a knee point voltage Vk and an internal resistance Rct The following quantities are associated with the magnetization curve of a CT e The knee point voltage Vk which is determined by the point on the curve V f Im beyond which an increase of 10 in the voltage V results in a 5096 increase of the magnetizing current e voltage related to the accuracy limit of the CT For a 5 CT accuracy class 5P accuracy limit factor At the saturation voltage Vs1 we will have a 596 accuracy on the current K In For a 10PK TC accuracy class 10P accuracy limit factor
211. urrent transformers should be short circuited and disconnected from the relay terminals using the isolating trip circuit and flag indicator provided If this is not possible to complete this operation the wiring to these circuits must be disconnected and the exposed ends suitably short circuited to prevent a safety hazard Visual inspection The rating information given under the top access cover on the front of the relay should be checked Check that the relay being tested is correct for the protected line circuit Ensure that the circuit reference and system details are entered onto the setting record sheet Double check the CT primary current rating and be sure to record the actual CT setting used Carefully examine the relay to check that no physical damage has occurred since installation Insulation Insulation resistance tests are only necessary during commissioning and if they have not been performed during installation Isolate all wiring from the earth and test the insulation with an electronic or brushless insulation tester at a dc voltage not exceeding 500V Terminals of the grouped circuits should be temporarily connected together The main groups of relay terminals are a Current transformer circuits o Trip coil and flag indicator outputs Auxiliary voltage supply Binary control inputs L1 and L2 one circuit e Relay contacts Commissioning P115 EN CM A41 MiCOM P115 8 7 3
212. value data Access in word reading function 03 Addes Contee 3 00h Most older Fault record Communication Database P115 EN CT A41 MiCOM P115 CT 13 27 40 2 4 15 Description of the mapping format MICOM P115 Dual powered CODE DESCRIPTION F1 Unsigned integer numerical data 1 65535 F10 Characters ASCII byte 1 ASCII character 32 127 byte 2 ASCII character 32 127 F11 Unsigned integer Binary input status bit 0 binary input 1 bit 1 binary input 2 bit 2 15 reserved F12 Unsigned integer Protection disable status bits O to 4 reserved bit 5 I disabled bit 6 gt gt disabled bit 7 gt gt gt disabled bit 8 IN disabled bit 9 IN gt gt disabled bit 10 lasym disabled bit 11 AUX1 disabled bit 12 AUX2 disabled bit 13 CB Fail disabled bit 14 to 15 reserved F15 Two digit decimal number Firmware version 1st digit major version 2nd digit minor version F16 Unsigned integer Configuration 0 disabled 1 enable Trip 2 enable Alarm F17 Unsigned integer Hardware version 00 2BO no RS485 01 2BO 5485 10 4BO no RS485 11 4B0 5485 F18 Unsigned integer curves type DTM STI IEC SI VI LTI IEC STI IEC RC Rectifier curve RI curve MI ANSI VI ANSI 10 EI ANSI 11 STI C02 12 LTI CO8 O0ONDUSWNHO Communication Database CT 13 28 40 P11
213. verse IEC 100 100 10 10 Al Z o 1 E E B E 1 04 D 0 1 E 0 01 01234567 8 9 101112131415 16 17 18 19 20 0123456 7 8 9 101112131415 16 17 18 19 20 Multiples of pickup setting 1 15 Multiples of pickup setting 1 5 0 05 D TMS 0 2 C TMS 0 5 TMS 0 05 D TMS 0 22 5 0 5 TMS 1 TMS 2 TMS 1 TMS 2 Operation P115 EN OP B41 MiCOM P115 OP 5 7 12 Extremely Inverse IEC RI Inverse Time 100 10 A 2 2 1 D D E E 0 1 0123 4 5 6 7 8 9 1011 12 13 14 15 16 17 18 19 20 0123 45 67 8 9 1011 12 13 14 15 16 17 18 19 20 Multiples of pickup setting 1 15 Multiples of pickup setting I Is E TMS 0 05 D TMS 0 2 C TMS 0 5 E TMS 0 00p D TMS 0 2 TMS 0 5 B TMS 1 TMS 2 TMS 1 A TMS 2 Long Time Inverse UK Short Time Inverse 100 1000 10 100 7 2 1 0 1 0 01 i 01234567 8 91011 12 1314 15 161718 19 20 0123456 7 8 9 1011121314151617181920 Multiples of pickup setting 1 15 Multiples of pickup setting I Is E TMS 0 05 D TMS 0 2 65 0 5 0 05 D TMS 0 2 C TMS 0 5 SSB B TMS 1 A TMS 2
214. w energy tripping coil ordering option The trip energy is provided by capacitors built into the P115 The trip command is a 50 ms pulse and its repetition depends on the tripping coil s impedance and on the current value Repetition continues until the tripping current criteria are reset The trip voltage on terminals 29 and 30 depends on the ordering option 24 trip energy gt 0 1 Ws 12 Vdc trip energy gt 0 02 Ws Flag indicator output Terminals 27 and 28 3 block terminal are used for the connection of an external flag indicator The flag indicator can be used for trip signaling The flag indicator output is supplied from a built in capacitor different from the trip coil output terminals 29 and 30 The trip command is a 50ms pulse its repetition depends on the external relay s impedance flag indicator coil and on the current value Repetition continues until the tripping current criteria are reset The voltage on terminals 27 and 28 is greater than 24 Vdc The trip energy is greater than 0 01 Ws P115 EN GS A41 Getting Started GS 3 8 24 MiCOM P115 1 3 5 1 3 6 1 3 7 1 4 Earthing Terminal PCT is the Protective Earth Conductor Terminal which must be permanently connected for safety reasons refer to Figure 2 Output contacts P115 has 2 or 4 output contacts depending on ordering option P115 is delivered with the following default factory settings for outputs output RL1 N O 1
215. when the tP time delay elapses tP trip pulse duration set GLOBAL SETTINGS CIRCUIT pulse Description of bits RL4 RL3 RL2 RL1 RL4 RL3 RL2 RL1 Close CB 0000 0 1 0 1 0 1 0 1 The Close CB function is high by the set time if the Operation Close Command is executed Communication port Binary Input front panel the close pulse is set in GLOBAL SETTINGS CIRCUIT BREAKER tClose Pulse Description of bits TC FI RL4 RL3 RL2 RL1 TC FI RL4 RL3 RL2 RL1 Trip CB 000000 0 1 0 1 0 1 0 1 0 1 0 1 1 The Trip CB function is high by the set time if the Operation Trip Command is executed Communication port front panel the trip pulse is configured in GLOBAL SETTINGS CIRCUIT tOpen pulse min Description of bits FI RL4 RL3 RL2 RL1 FI RL4 RL3 RL2 RL1 CB not Healthy 00000 0 1 0 1 0 1 0 1 0 1 1 CB not Heathy is high if the time delay of the tCB not Healthy function has elapsed the not Healthy pulse is configured in GLOBAL SETTINGS CIRCUIT BREAKER not Healthy Description of bits FI RL4 RL3 RL2 RL1 FI RL4 RL3 RL2 RL1 Hardware Warning 00000 0 1 0 1 0 1 0 1 0 1 1 The Hardware Warning function is high if any problems with the P115 s hardware are detected Note To use the watchdog function it is necessary to set the chosen relay to reverse logic an
216. x 40 ms The minimum setting for the DT time delay gt gt gt is 0 ms for overcurrent and 0 ms for earth fault For I gt I gt gt and IN gt gt the minimum time delay setting is 0 02 s The minimum tripping time for the hot start capacitors are charged within the unit for Oms set time delay is 0 ms 40 ms 40 ms If there was no current flowing through the relay terminals before the occurrence of a fault and that a fault condition occurs or if the current in all the analog inputs is lower than 0 2 In 0 2 len the minimum tripping time from the cold start capacitors not charged with a 40 ms set time delay is equal to 0 ms 40 ms time correction value Time correction value measured at the output contacts i Hardware version 115746 0 without energy output for the low energy tripping coil e for all types of fault 1 2 3 phase lt 25 mA e except 1 phase fault currents below 1 6 In lt 30 mA ii Hardware version P115746x1xxxxxx with energy output for the low energy tripping coil 24 Vdc 0 1 W and P115746x2xxxxxx with energy output for the low energy tripping coil 12Vdc 0 02W e for faults currents below 0 6 In 1 phase fault lt 60 ms 2 phase fault lt 60 ms 3 phase fault lt 30 ms e for all types of fault currents above 0 6 1 2 3 phases lt 30 ms For P115 without low energy tripping coil output 115746 0
217. y isolated The clamping screws of all terminal block connectors for field wiring using M4 screws shall be tightened to a nominal torque of 1 3 Nm Equipment intended for rack or panel mounting is for use on a flat surface of a Type 1 enclosure as defined by Underwriters Laboratories UL Any disassembly of the equipment may expose parts at hazardous voltage also electronic parts may be damaged if suitable electrostatic voltage discharge ESD precautions are not taken If there is unlocked access to the rear of the equipment care should be taken by all personnel to avoid electric shock or energy hazards Voltage and current connections shall be made using insulated crimp terminations to ensure that terminal block insulation requirements are maintained for safety Watchdog self monitoring contacts are provided in numerical relays to indicate the health of the device Schneider Electric strongly recommends that these contacts are hardwired into the substation s automation system for alarm purposes Safety Section gt gt Pxxx EN SS G1 1 Page 5 8 To ensure that wires are correctly terminated the correct crimp terminal and tool for the wire size should be used The equipment must be connected in accordance with the appropriate connection diagram Protection Class Equipment Before energizing the equipment it must be earthed using the protective conductor terminal if provided or the appropriate terminati

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