Home

USER MANUAL - seb barlassina

1. WAON va 292 WAON u XXXXXXXX IH 41581 6LSNV Iu eu ELA XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX WAON NOIIONOA on TY SNL9 XSNL9 IN ZSNL9 TSNZ9 TY Z TA 22 Ty TZ Ta ESMM Ty cSMM Ty TSMM Ty 14 5 214 Lld Old 64 84 14 94 SI vd d 24 bd on DIDESNLI DIDTSNLO ZSMM S X XXX S X XXX S X XXX S X XXX S X XXX TEN 999VSNL9 DIDZSNLO 999 SMM 000 ISMM al TAL TNL HINWI N 6L ISN ua asa arg aeg azg 29 009 MM 62 ISNV uonouny 9NISO 1034 OLNV S XX XX S XX XX uuu u lt lt on on VI on WL IL uon on N6S ISNV AGA Ava Ata N6SISNV Plouseuy 39 v LTOAH3AO TVNCISIU S XX Xx 5 XX XX o UUU o UUU uuu u uuu u SN ESN VI ESN Wd 99999 IL 5 5 uon eon or NL9 ISNV N83 NZ3 N93 NGI Nta Nea uogoejes v3 LHLYVI LINVI HLYVI TYNOILOIUIO ESN E 299929999 S XX XX S XX XX o UUU o UUU uuu u uuu u uuu u WSN WSN WI WSN WL dIGNI IL UNSa uon evn uon Ivn UOI cWI UOI IVI NL9 ISNV vola V63 ve3 Va voa ved
2. UST SEE n T _ ceres B2 11 0 380V _q CB2 12 0 125V 5 B SH 1 38 gt RS rea s per CB2 16 0 380V TEST 082 17 0 128V lt VN 49 1 37 U TR CB2 18 lt LINEH cogs AEE ar C cas lt A gt _ 08128 gt 8 DIGI 4 R S T 98145 lt SH 8 12 9 9 a tas DIG2 E T E DIG 3 esta CEU Exc CB1 47 2 lt PH 08148 DIG 4 LN 5 E 29 E gt gt 08 45 gt DIG 5 cB240 lt E PA esce T C824 E DIG 6 czs E Insertion Figure 8 57 SEB Divisione Elettronica e Sistemi INSTALLATION 1 IR lt _CB1 A1 KE e n lt 1 2 4 4 CB2 A2 x taie CB2 B1 KE 1 6 Il 13 2 CB1 11 0 380V El CB1 12 0 125V lt UR CB1 13 lt T CB2 11 0 380V L CB2 12 0 125V lt UT U2 CB2 16 0 380V El CB2 17 0 125V lt U3 Us X CB2 18 12 4 8 Insertion Figure 9 Voltage circuits It is suggested to terminate the voltage wiring using plug terminals Minimum suggested wire cross section 1 5 mm With reference to the insertion diagram the voltage input terminals must be selected as function of the programmed Un and Uon value 58 SEB Div
3. et eI UA Man 17 44 Test ot output relays oc 18 5 DISPLAY AND PROGRAMMING ec iere eat 19 Standard display fig a nda ng Aa od d 19 5 2 Visualization SUUCIUFe ott 8 21 5 3 Address and time 2 5 5 epee eet ene tex et nete sete bete 26 54 Function selection fig goo Qoo Got qoi 27 5 5 Nominal values set up fig Piscina ta 29 5 6 Thresholds and time delays set up fig 4 30 5 6 1 ANSI 67 thresholds programming fig 4 esses 31 5 6 2 ANSI 21 thresholds programming fig 4 34 5 6 3 ANSI 67N thresholds programming fig 4 and fig 5 37 5 6 ANSI 67N threshold SA programming fig 5 40 5 6 5 ANSI 59N threshold Uo gt gt programming fig 5 43 5 6 6 ANSI 79 Auto reclosing function programming fig 5 44 57 Output relays programming fig 5 45 5 8 Digital inputs function programming fig 6 nn nnnnnnnnos 47 5 9 Special function voltage memory function fig 6 49 510 Parameter values visualization fig 6
4. ccce ccce ccce 49 Delhi Events l9 Diane Ioui 51 5 12 Trips 7 deside i ee ee ee eet 54 6 gt INSTALLATION s ci iena 55 Supplied Kib MEI MEI 55 02 MAD a a 56 6 3 Relays R3 and R4 Signaling Command 61 6 4 RS485 serial communication pollaio labii 61 7 TIME DEPENDENT CURVES IEC 2554 nio 63 B TECHNICAL 410 12214322 44222414 2 ioni tangenti 64 9 TABLE Ss pesto lordi dio culm ad sil loisirs elsi TO ira 66 Information printed in this manual subject to change without prior notice This manual must not be reproduced in whole or in part in any form or by any means without the express written permission of SEB Divisione Elettronica e Sistemi SEB Divisione Elettronica e Sistemi GENERAL CHARACTERISTICS 1 GENERAL CHARACTERISTICS The protection relay ZFD8N is designed to perform the following functions Directional overcurrent three phase or two phase ANSI 67 Three phase overcurrent or two phase ANSI 50 51 Auto reclosing ANSI 79 or Directional under impedance ANSI 21 NON directional under impedance ANSI 21 There are also available the following functions Directional earth fault ANSI 67N Earth fault overcurrent
5. uonoejes ZHLUVI LINVI HLUVI IVNOLLO3YI0 VSN 7 IS 1 5 ZSN 29 LSN NZ9 LZ LS OS 19 ISNV SCTOHSIYHL 340913 ees m ISNY TOHSAYHL Si3 e Bid eg 23 DISPLAY AND PROGRAMMING SEB Divisione Elettronica e Sistemi 9 1614 4 amp eJnBi4 OL snaeis Q UUU 2 O 6L ISNW UUU TO XXX X Z vid ld O AAA O AA KKK A A AKKKK A A y AAAAK SOLWLS XXX X 77 XXX X IZ XX XX O XX XX 0 0 XX XX In XX XX OI XX XX CI XX XX ZI XX XX II SAJASVIN Old 6d 8d ld 9d Sd vd MM 99 MM pOIG MM Z9I0 SOLWLS GDIG MM EDIA TOIA IVLI9IG EN CN LN pu 24 SOLWLS 909 EN Tu SAVINI LIN LW snjeais snqeqs 6L ISNV on 65 117 sn38e7s 502225 503225 snjeqs 502225 snjeqs snjeqs 502225 snjeqs snjeais 501415 SNIVIS 9 ES NL9 VS 9 25 NL9 IS NL9 ez IC GA 16 12 I
6. 54 SEB Divisione Elettronica e Sistemi INSTALLATION 6 INSTALLATION 6 1 Supplied kit RK VERSION 19 rack installation the proper rack is supplied by Seb e protection relay module ZFD8N with 2 rear sockets e transparent front panel with push buttons e transparent front panel without push buttons e blister with items 1 2 3 4 5 MR VERSION mini rack installation e mini rack e protection relay module ZFD8N with 2 rear sockets e transparent front panel with push buttons e transparent front panel without push buttons e blister with items 1 2 3 4 5 Sacchetto BLISTER 1 n 8 screws to fix wire terminals of current circuits 2 n 4 screws to fix the relay rear socket on the 19 rack or on the mini rack n 2 screws to fix optionally the protection relay on the front of the 19 rack 3 n 2 knobs to fix the transparent front panel 4 n 8 washers to be used to fix wire terminals current 5 n 8 growers to be used to fix wire terminals current The knobs to fix the transparent front panel must be screwed through the panel the front panel itself the operation will create a screw thread in the plastic material and the knobs will never be missed 55 SEB Divisione Elettronica e Sistemi
7. The list of the thresholds that can be enabled on the auto reclosing function depends on the enabled protection functions When the directional overcurrent function is enabled ANSI 67 the following information is displayed E8R E9R 6751 cc 6153 cc 6752 cc When the NON directional overcurrent function is enabled ANSI 50 the following information is displayed E8R E9R 5051 cc 5053 cc 5052 cc When the directional earth fault function ANSI 67N is enabled EARTH 1 mode the following information is displayed E10R E11R 67NS1 cc 67NS3 cc 67NS2 cc Uo gt gt cc When the directional earth fault function ANSI 67N is enabled EARTH 2 mode the following information is displayed E10R E11R 67NSA cc 67NS3 cc Uo gt gt cc ON enabled function OFF disabled function 5 7 Output relays programming fig 5 The session allows to program the activation of the output relays R1 R2 R3 or R4 on START or TRIP conditions for each threshold 45 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING In the programming session are displayed only the active thresholds depending on selections Equivalent information and set up related to relay R1 is available for the relays R2 R3 and R4 just changing the relay identification F1 OUTPUT RELAY R1 QUIESCENT STATUS programmable R1 NORM Xxx Programming of the R1 relay status when no START or TRIP conditions are activ
8. U2 E3 n nnn In n nnn Un nnn The number of the presented information depends on the active functions e g when ANSI 50 51 is selected the information of impedance voltage and angle is not presented Q21 STATUS OF THE LAST RECLOSE COMMAND El ANSI79 hhhhhhhh The status of the last reclosing command is presented the parameter hhhhhhhh can have the value RRR Successful first fast reclosing RRF Failed first fast reclosing RL1R Successful 1st long time reclos RL1F Failed 1st long time reclos RL2R Successful 2nd long time reclos RL2F Failed 2nd long time reclos RL3R Successful 3rd long time reclos RL3F Failed 3rd long time reclos RLAR Successful 4th long time reclos RL4F Failed 4th long time reclos The information of a failed reclosing is presented when a protection function trips during a reclosing cycle if no previous reclosing function has been executed the information NONE will be showed Q22 Q27 DIGITAL INPUTS STATUS ON EVENT El E DIGl vv DIG2 vv DIG3 vv 53 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING El El E DIG4 vv DIG5 vv DIG6 vv The status of the digital inputs at the event are displayed The parameter vv can assume the value HI or LO Q28 Q29 DATE AND TIME OF THE EVENT El Date El Time dd mm yy hh mm ss The date and time of the event are shown 5 12 Trips counters fig 7 In this section are displayed the total and p
9. RS 485 half duplex Mod BUS ASCII 300 9600 bauds selectable fibre optic module 24 320 20 48 230 Vac 20 47 63 Hz 5 10W 10 60 C 25 80 C lt 95 31 3 5 kg SEB Divisione Elettronica e Sistemi TECHNICAL DATA Note 1 The additional relay R5 is controlled by self test program Note 2 Breaking capability at 110 Vdc L R 40 ms 100 000 operations Note 3 The output contacts of R3 and R4 relays can be configured as signaling or tripping relays 65 SEB Divisione Elettronica e Sistemi TABLE 9 TABLE Table A Settings Overcurrent 67 51 52 53 151 gt 152 gt 153 0 10 30 00 In 0 01 In 50 51 Minimum voltage USs gt 0 010 1 200 Un 0 001 Un Earth overcurrent 67 NS1 NS2 101 gt 102 gt lo3 0 005 9 999 lon NS3 NSA Residual overvoltage 51N 1 gt Uo2 Uo3 gt 0 004 1 200 Uon der impedance 0 010 9 999 Zn 10 001 Zn 21 22 23 21 lt 22 lt 23 lt dA Minimum voltage UZs gt 0 010 1 200 Un 0 001 Un D AII the Characteristic angle 180 180 1 directional thresholds Sector width 15 4180 1 59 59Vo Residual overvoltage 0 004 1 200 Uon 0 001 Uon Definite time All thresholds 0 02 99 99 5 Characteristic curves Dependent time as IEC 255 4 51 1 Characteristic constant 0 01 20s 0 01 s All definite time Di thresholds Additional delay 0 00 99 99 s 66 67 68 SEB DIVISIONE ELETTR
10. VH Peeeeece Gu ss uu yy ee uu bb6 9910 SOIA 251 IH Ta TH TH Ta Ta Ta TH 6LSNV TH 620 820 120 920 Sco ezO ecco Lco 2227 2227 222 2227 KA un A AA un AA un AA AA Ta o Ta co TH TE on Ta en Ta 20 TH EQ TH OI Ta 020 610 810 10 910 GLO 319 210 ux ux AA KA ux S MM MM o UUU o UUU uu uu ux 00000902 EX TH CX Ta TX 14 DIC TH 301 2 IH Alda Ta AAPA TH AO Ta 39992 14 3999 TH TH SINHAH LLO 010 60 80 10 90 so LO 9 JHXN9I4 25 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING 5 3 Address and time fig 3 B1 RELAY MODEL not programmable ZFD8N mod nn Models A5 nominal earth fault current lon 5 A A1 nominal earth fault current lon 1 A The nominal phase current is programmable 1 A or 5 A B2 B3 COMMUNICATION PROTOCOL programmable B2 PROTOCOL XXXXXXXX The communication protocol is programmable between the followings STANDARD ASCII Seb protocol MODBUS Modbus protocol SLAVE When the MODBUS protocol is selected the following display is showed to allow the selection of the transmission speed B3 BAUDRATE XXXX The xxxx parameter is selectable between the followings 300 600 1200 2400 4800 9600 When the STANDARD protocol is selected the baud rate is automatically select
11. 47 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING b the ALL selection ALL the thresholds has the priority on single threshold selection G1 DIGITAL INPUT DIG1 SET UP programmable 161 cc Programming of the function related to digital input channel 1 DIG1 Parameter cc programming of the condition that activates the function related to digital input DIG1 the condition is selectable between HI and LO Parameter xxxxxxx programming of the function related to digital input DIG1 the following functions are selectable only the active thresholds are presented ref E1 paragraph from 5 6 1 to 5 6 5 NONE no functions active related to digital input DIG1 TA 6751 additional time delay on the threshold S1 ANSI 67 TA 6782 additional time delay on the threshold S2 ANSI 67 TA 6753 additional time delay on the threshold S3 ANSI 67 TA 5081 additional time delay on the threshold 51 ANSI 50 TA 5082 additional time delay on the threshold 52 ANSI 50 TA 5083 additional time delay on the threshold S3 ANSI 50 TA Z1 additional time delay on the threshold Z1 ANSI 21 TA Z2 additional time delay on the threshold Z2 ANSI 21 TA Z3 additional time delay on the threshold Z3 ANSI 21 TA 67NS1 additional time delay on the threshold NS1 ANSI 67N TA 67NS2 additional time delay on the threshold NS2 ANSI 67N TA 67NSA additional time delay on the threshold NSA ANSI 67N TA 67NS3 additional time delay on the threshold NS3 ANS
12. Uo2 gt SEB Divisione Elettronica e Sistemi GENERAL CHARACTERISTICS These constraints are verified by the protection relay during the set up and an error message will be displayed if required The NS3 threshold operates normally with the parameters 103 Uo3 and 53 lt 1 4 2 Directional earth fault characteristic angles When it operates as directional earth fault the following characteristic angles where x 1 2 3 A are suggested e unearthed 90 e solidly earthed 75 e via earthing resistor 0 e via earthing transformer 90 e via Petersen coil 0 The suggested sector width DONx in the first 4 cases is 85 With unearthed systems the threshold NS3 could be programmed with 90 characteristic angle to be used as reserve function against earth faults on different lines With solidly earthed system it is suggested to use the phase overcurrent threshold ANSI 67 1 4 3 Earth fault overcurrent ANSI 51N When a sector width D Sx is defined equal to 180 the related overcurrent threshold becomes non directional ANSI 51N the threshold operates on the current threshold lox gt only and the voltage threshold is indifferent 1 5 Residual overvoltage ANSI 59N A residual overvoltage threshold Uo gt gt independent from the voltage thresholds related to the directional earth fault function is available This threshold is time definite The available settings for each time delay are listed
13. par 5 4 ref C2 DOZ1 o nnn nnn programmable from 015 to 180 It represents the width of the angular sector see paragraph 1 1 D Z1 23 090 180 NOTE When a sector width D Zx is defined equal to 180 the related under impedance threshold Zx becomes NON directional and the overvoltage threshold UZs gt will be indifferent Examples E7Z TIME DELAY SET UP programmable TI INDIP XX XX S Set up of the time delay to the activation TRIP of the programmed output relays when the thresholds operates the available time delay is definite time only E8Z ADDITIONAL TIME DELAY SET UP programmable TA 21 5 The additional time delay is programmable from 00 00 to 99 99 seconds please note that at least one of the digital inputs should be programmed to activate the time delay function ref G1 G6 paragraph 5 8 The additional time delay TA is added to the time delay TI to obtain the output relay trip when the TI TA time expires The additional time delay TA will be added if the time delay TI is programmed at least equals to 50 ms digital input acquisition time 40 ms E9Z DIGITAL INPUT ACTIVE ON THRESHOLD not programmable TA Z1 36 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING It shows the digital input programmed to activate the additional time delay TA on the displayed threshold The parameter eeeeeeee can show one of the following
14. 0 02s Es 1 thresh Curve IEC 255 4 A B Ki 0 14 13 5 80 a 0 02 1 2 K Parameter 0 01 20 00 s Ratio between the greatest lthresh measured current and lthreshold 63 SEB Divisione Elettronica e Sistemi TECHNICAL DATA 8 TECHNICAL DATA Measuring inputs Rated phase current In Rated earth current lon Thermal withstand continuously Thermal withstand for 1 s Rated voltage Un Uon programmable Thermal withstand continuously Thermal withstand for 1 s Rated frequency Primary CT s current Primary VT s voltage Output contacts ratings Number of relays Note 1 Rated current Rated voltage Contact configuration Breaking capability Note 2 tripping relays R1 R2 signaling relays R3 R4 R5 Note 3 Mechanical life Digital inputs Number of inputs External control voltage Typical current sink Data transmission Standard Communication protocol Transmission speed Optional Auxiliary supply Range Frequency Vac Burdens min max Environmental conditions Operation Transport and storage Relative humidity without condensation Protection degree for flush mounting mini rack Weight 64 1A 5A programmable 1Aor5A 4 In lon 100 In lon 57 73 63 50 72 16 100 110 V 125 190 220 230 380 400V 2 Un 2 Un 50 60 Hz 1 18500A 1 999999 V 4 1 5A 250 V change over 05 02 gt 108 6 as Uaux 2mA
15. 4 Us2 gt 4 gt operating area zona intervento Figure 1 operating area zona intervento NON operating area zona NON intervento 151 gt 152 gt Figure 2 1 2 Directional overcurrent ANSI 67 There are available 3 directional overcurrent independent thresholds defined by the following current and voltage thresholds and angular threshold parameters threshold 51 151 USs gt 51 lt threshold S2 152 USs gt DS2 lt threshold S3 163 USs gt DS3 lt parameter 51 and D S1 parameter 52 and D S2 parameter 53 and D S3 Each current threshold Isx gt and each angular sector characteristic angle Sx and sector width D Sx is independently programmable the voltage threshold USs gt is common to the 3 directional threshold and it is defined in the S1 threshold programming section 6 SEB Divisione Elettronica e Sistemi GENERAL CHARACTERISTICS The threshold S1 can be programmed as definite time or dependent time whilst the remaining thresholds are time definite only see curves paragraph 7 Each threshold S1 S2 and S3 can be activated or disabled by the user The protection operates on the directional threshold Sx if AT THE SAME TIME the measured current and voltage are greater than the thresholds Isx gt and Uss gt and if the current phasor is in the angular sector defined as 5 DOSx with the measured voltage as reference The available settings for each t
16. Sed DIVISIONE ELETTRONICA E SISTEMI ZFD8N DIGITAL MULTIFUNCTION RELAY DIRECTIONAL PHASE OVERCURRENT AND EARTH FAULT WITH AUTO RECLOSING FUNCTION OR UNDER IMPEDANCE RELAY USER MANUAL P501D802 October 2004 SEB Divisione Elettronica e Sistemi INDEX INDEX 1 GENERAL 21 1 121 ATAR 4 1 2 Directional overcurrent ANSI 67 ete 6 1 3 Phase overcurrent ANSI 50 51 8 1 4 Directional earth fault 3 independent thresholds na 8 1 4 1 Directional earth fault with non operating zone around the origin 8 1 4 2 Directional earth fault characteristic 9 1 4 3 Earth fault overcurrent ANSI 51N eee 9 1 5 Residual overvoltage ANSI 59 i 9 1 6 Under impedance ANSI 21 9 1 7 X Auto reclosing function ANSI 79 11 2 PRONT RANELKEYS tentem As 14 3 FRONT PANEL LED SIGNALING 15 4 PROGRAMMING AND TEST I i ete 16 4 1 Howto program the protection rn 16 4 2 Howto modify a visualized nnna 17 qM co ro li hero a hah I Tl sl I Tl
17. The sector width can be programmed from 15 to 180 and it is shown using the notation D x DIRECTIONAL THRESHOLD OPERATION The directional threshold e g NS1 ANSI 67N directional earth fault operates when the following conditions are verified the measured current is greater than the threshold lo1 gt the measured voltage is greater than the threshold Uo1 the measured current phasor is within the sector defined by the parameter 51 and DONS1 therefore if the following characteristic angle is programmed 51 90 D NS1 15 the directional threshold will operate if the angle of the measured current phasor is lagging the voltage phasor from 75 to 105 90 15 For the available settings of the thresholds Ix Us and of the parameters and D x please refer to Table A NON DIRECTIONAL THRESHOLDS When the sector width is defined equal to 180 the threshold becomes non directional and the voltage threshold is indifferent only the modules of the measured currents or impedances are taken into consideration by the protection relay This functionality allows the programming of additional non directional thresholds to obtain a higher degree of protection Every threshold can be programmed ON OFF or disabled with an external command through digital inputs SEB Divisione Elettronica e Sistemi GENERAL CHARACTERISTICS gt NON operating area zona NON intervento X 061
18. UZs Un n nnn n nnn threshold level referred to the voltage nominal value Un Examples UZs gt Un UZs Un 0 050 0 200 It is suggested to program the overvoltage threshold UZs common to the 3 thresholds at the minimum value allowed by the installation characteristics to obtain the relay operates independently from the voltage level it is suggested to avoid to program the threshold UZs gt lower then 1 V VT secondary value When the measured voltage is lower than the threshold the voltage memory function if enabled will be activated see par 1 2 and par 5 9 ref H1 Note the voltage threshold is programmable only at Z1 threshold set up at Z2 and Z3 thresholds set ups the voltage value is presented but it is not programmable E5Z CHARACTERISTIC ANGLE SET UP programmable The programming of the characteristic angle is presented only if the directional operation has been selected selection DIREZ par 5 4 ref C2 DZ1 nnn tnnn programmable from 180 to 180 The characteristic angle is defined with the measured voltage as reference see paragraph 1 1 Examples 35 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING O21 O22 090 075 Please use the down arrow push button to select the sign or the digit to be modified E6Z SECTOR WIDTH SET UP programmabile The programming of the sector width is presented only if the directional operation has been selected selection DIREZ
19. e Protection function ANSI code the display shows the ANSI codes of the main selectable functions ref C1 FUNCTION SELECTION e Measured parameters the display shows one of the measures current voltage impedance etc or the auto reclosing status The measure is visualized as primary values ON TRIP CONDITION When a trip condition occurs the protection relay visualizes the TRIP message that includes the threshold related to the trip the displayed messages are as the following TRIP TRIP TRIP TRIP 81 NS2 21 Uo gt gt The information of the trip as well the glowing of the related LED s is displayed until the RESET push button is pressed If a new trip condition occurs the displayed information will be updated information related to previous trips are recorded in EVENTS memory When the auto reclosing function ANSI 79 status is selected during the operation the following messages will be displayed ON auto reclosing function programmed OF auto reclosing function inhibited not programmed OF DIG auto reclosing function temporary inhibited by external command digital input IN CORSO auto reclosing function in progress FAIL RIC failed auto reclosing function FAULT CONDITION When a permanent or temporary fault condition is detected by the self diagnosis module the following message will be displayed 19 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING FAIL F PILOT De
20. INSTALLATION 6 2 Cabling INSERTIONS Directional overcurrent ANSI 67 figure 8 NON directional overcurrent ANSI 50 51 figure 8 current inputs only Directional earth fault ANSI 67N figure 8 inputs lo Uo Earth fault overcurrent ANSI 51N figure 8 input lo Uo Directional under impedance ANSI 21 NON directional under impedance ANSI 21 Phase to phase voltages figure 8 Phase to earth voltages figure 9 For the terminal numbers on the rear sockets please refers to figure 10 Current circuits It is suggested to terminate the current wiring using eyelet terminals Minimum suggested wire cross section 2 5 mm 56 SEB Divisione Elettronica e Sistemi INSTALLATION 1 yH 68144 1 16 0 380V CB1 17 0 125V 1 SH oera gt Uo R1 CB1 18 lt gt gt CB1 43 gt gt Hem R2 GIO CB1 B1 S 5 lo CB1 B2 lt gt CB1 40 gt cora CB1 30 gt 8 1 1 S x n 1 1 31 CBI A2 S R3 NA yH oes gt CB2 A1 lt B SH gt 9 4 CB2 A2 lt 15 1 34 CB2 B1 lt 9 4 2 2 lt CB126 gt 1 24 gt LS 08125 SH c8 gt CB1 11 0 380V CB1 12 0 125V SH c8127 gt Ut lt R4
21. LEVEL SET UP programmable Examples NS1 threshold voltage level programming 37 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING 1 gt n nnn n nnn threshold level referred to the voltage nominal value Uon Uol Uon Uo3 Uon 0 050 0 200 Note the overvoltage threshold is independently programmable for each threshold NS1 NS2 and NS3 Examples E4N CHARACTERISTIC ANGLE SET UP programmable 1 t nnn tnnn programmable from 180 to 180 The characteristic angle is defined with the measured voltage as reference see paragraph 1 1 NI ON2 090 075 Please use the down arrow push button to select the sign or the digit to be modified Examples E5N SECTOR WIDTH SET UP programmable DON1 o nnn nnn programmable from 015 to 180 It represents the width of the angular sector see paragraph 1 1 1 090 180 NOTE When a sector width D Nx is defined equal to 180 the related overcurrent threshold NSx becomes non directional and the related overvoltage threshold 1 Uo2 gt and Uo3 gt will be indifferent Examples E6N TIME DELAY SET UP programmable TI eeeee XX XX S 38 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING Set up of the time delay to the activation TRIP of the programmed output relays when the directional thresholds operates Parameter eeeee time delay characteristic For the NS1
22. ON no other information is presented for the other events the following displays give more detailed information on the event For the events CHINT and APINT only the status of the last reclosing command Q21 the digital input status Q22 Q27 and the time and date Q28 and Q29 Q2 Q5 TRIP THRESHOLD The parameters of the threshold that caused the TRIP condition and their values are shown This information is not presented on STATUS event Q2 current or impedance threshold Q3 voltage threshold Q4 characteristic angle DX where X 1 2 3 A 51 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING Q5 sector width DX where X 1 2 3 A For the threshold SA the Q2 and Q3 displays are doubled to present the values of the two current thresholds lo1 gt 102 and the two voltage thresholds Uo1 gt Uo2 gt When the thresholds are programmed as NON directional the information related to the angles is not presented Q4 and Q5 For the thresholds related to ANSI 50 51 the display of the voltage threshold Q3 and the angle information Q4 Q5 are omitted for the threshold ANSI 59N the display of the current threshold Q2 and the angle information Q4 Q5 are omitted Examples related to NSA threshold Q11 Q3 bis Q3 Q2 bis El 1 gt El 1 gt El 2 gt El UA2 gt Q4 5 1 El Q6 ACTIVATED OUTPUT RELAYS El RELAY nnnnnnn It shows the list of the output relay activated by
23. ZZ 22 Yi CZ VI 29999 IL 2 cao lt szn uuo 24 22 Ic ISNV S XXxX S XX XX o UUU uuu u XX XXXXX uz u uuu TZ TZ WL TZ WL 29999 IL 12 12 sz uuo gt IZ gt IZ Ic ISNV 263 283 213 299 299 273 zeg 2 213 LZ ISNV YSGNN S XX XX S XX XX o UUU o UUU uuu u uu UU 9925 ES s vi ES vi 9999 IL 5 ES un 550 lt ESI MM ISNV S XX XX S XX XX UUU o UUU uuu u uu uu 25 25 VI 25 WL 9999 IL 25 25 un 550 UI 451 MM ISNW gx XX S XX XX o UUU o UUU uuu u uu uu 290 IS 4171908 TS WL TS WL 9999 IL TS d TS un 550 UI ISI MM ISNW VUOLVHVL Sed 829 599 599 Sv SSA szg SI SpjouseJui LNAUHHNOHINO 16 06 ISNV TVNOILLO3HIQ NON 40 9ISNV TVNOLLOG3HIG U AIT A ZZZZZZ 222222 Y RO KKK A XX XXX WA UOT LSVulNOO AVIdSIG un or I uon UN vi ur TUNIHON an Las 60 80 va La e Bly 22 DISPLAY AND PROGRAMMING SEB Divisione Elettronica e Sistemi G n
24. can operate properly The memorized reference voltage is related to system frequency before the incidence of the fault 1 1 Directional thresholds The ZFD8N protection relay measures voltages and currents and computes the phase angle between each voltage reference and the related current The nominal current In and nominal voltages Un and Uon are programmable as regards the nominal earth current lon two models of ZFD8N relay 1A or 5A are available to match the nominal current of the installed earth CT In general terms each directional threshold is defined independently of each other by the following parameters Ix Zx lt overcurrent or under impedance threshold e g 11 Z1 Ux overvoltage threshold e g USs ANSI 67 lt angular sector threshold ANGULAR SECTOR THRESHOLD the threshold is defined by the following parameters Dx characteristic angle e g PNS1 related to ANSI 67N SEB Divisione Elettronica e Sistemi GENERAL CHARACTERISTICS Dx sector width e g DOZ2 related to ANSI 21 CHARACTERISTIC ANGLE The characteristic angle is defined with the measured voltage as reference straight line C in figure 1 The characteristic angle can be programmed from 180 to 180 and it is shown using the notation The angle of the sector axis is positive when lagging the voltage vector see figure 1 SECTOR WIDTH the sector width is symmetrically defined referred to the straight line C
25. defined in terms of Zn Zn Un In Each threshold Z1 Z2 and Z3 can be activated or disabled by the user The protection operates on the directional threshold Zx if AT THE SAME TIME e the measured impedance is lower than the thresholds Zx lt e the current phasor is in the angular sector defined as Zx D Zx with the measured voltage as reference When the sector width D Zx is defined equal to 180 the threshold becomes non directional this functionality allows the programming of additional non directional thresholds to obtain a higher degree of protection The available settings for each threshold and time delay are listed in Table A NON DIRECTIONAL OPERATION At function selection level ref paragraph 5 4 C2 it is possible to select the NO DIREZ NON directional selection the selection is effective for ALL THE UNDER IMPEDANCE THRESHOLDS The protection operates only on the measured impedance modules INSERTION At function selection level ref paragraph 5 4 C1 it is possible to select the relay insertion MIN Z D operation measuring the phase to phase voltages MIN Z Y operation measuring the phase to earth voltages The insertion diagrams are in the following figures 10 SEB Divisione Elettronica e Sistemi GENERAL CHARACTERISTICS fig 8 phase to phase cross polarization fig 9 phase to earth voltage insertion MEASURED VALUES The measured values of the impedances and their thresholds are ex
26. set up and activated relays TRIP event only the measured currents voltages phases impedance the digital input status date and time of the event SELF DIAGNOSIS the software includes a non stop monitoring module that controls the functionality of all hardware and software resources of the protection relay Detected fault conditions are reported by e diagnostic message on the display e glow of ared LED on front panel e RS output relay drop off The fault condition signaling stays until faults are pointed out by the monitoring module during this condition the protection functions are suspended to avoid unsuitable tripping STATUS FUNCTION when the STATUS function is activated by one of the digital input when programmed the protection relay memorizes information related to measured parameters and digital input status see par 5 11 EVENTS The recorded information allows an analysis of trip causes in co operative protection relays systems PILOT WIRE FAULT MONITORING when the function is programmed the digital input DIG2 is used to control the correct functionality of the pilot wire Digital input DIG2 is always expected to be complementary of DIG1 input HI LO or LO HI to identify faults on pilot wire SEB Divisione Elettronica e Sistemi GENERAL CHARACTERISTICS The fault condition is reported as detected by the self diagnosis module but the protection functions are not suspended only the functions related to DIG1 di
27. threshold the time delay can be selected between one of the followings INDIP definite time delay DIP A time delay as curve A IEC 255 4 inverse time DIP B time delay as curve B IEC 255 4 very inverse time DIP C time delay as curve C IEC 255 4 extremely inverse time For the thresholds NS2 and NS3 the TI parameter is fixed as INDIP definite time Parameter xx xx Time definite time delay seconds to activate the programmed output relays the output relay trips when the measured current exceeds the threshold level programmable from 00 02 to 99 99 s Time dependent value of the parameter K see formulas paragraph 7 TI DIP B TI DIP A TI INDIP 02 50 K 10 00 K 03 25 5 NOTE the index K or s is shown coherently to the selected time delay characteristic when the push button ENTER is pressed E7N ADDITIONAL TIME DELAY SET UP programmable TA NS1 XX XX S The selection is displayed only when a TIME DEFINITE characteristic has been selected TI INDIP at ref EGN when TIME DEPENDENT characteristic has been programmed the selection will not be displayed The additional time delay TA is programmable from 00 00 to 99 99 seconds please note that at least one of the digital inputs should be programmed to activate the time delay function ref G1 G6 paragraph 5 8 The additional time delay TA is added to the time delay TI to obtain the output relay trip when the TI TA time expires The additional time delay TA will be
28. to the 3 directional overcurrent thresholds at the minimum value allowed by the installation characteristics to obtain the relay operates independently from the voltage level it is suggested to avoid to program the threshold USs gt lower then 1 V VT secondary value When the measured voltage is lower than the threshold the voltage memory function if enabled will be activated see par 1 2 and par 5 9 ref H1 Note the voltage threshold is programmable only at S1 threshold set up at 52 and 53 thresholds set ups the voltage value is presented but it is not programmable E4S CHARACTERISTIC ANGLE SET UP programmable The programming of the characteristic angle is presented only if the directional operation has been selected selection DIREZ par 5 4 ref C2 51 t nnn tnnn programmable from 180 to 180 The characteristic angle is defined with the measured voltage as reference see paragraph 1 1 51 52 090 075 Please use the down arrow push button to select the sign or the digit to be modified Examples E5S SECTOR WIDTH SET UP programmable The programming of the sector width is presented only if the directional operation has been selected selection DIREZ par 5 4 ref C2 DOS1 o nnn nnn programmable from 015 to 180 It represents the width of the angular sector see paragraph 1 1 51 53 090 180 NOTE When a sector width D Sx is defined equal to 180 the rel
29. ANSI 50N 51N Residual overvoltage ANSI 59N All the functions related to ANSI code 67 50 51 67N 51N 59N and 79 are available at the same time to guarantee with a protection module all the functions to manage e protection of main rings e protection of MV feeders The directional or NON directional under impedance function ANSI 21 can be activated as alternative to the phase overcurrent functions ANSI 67 or ANSI 50 51 and auto reclosing function ANSI 79 The directional earth fault function is used in electrical systems with unearthed neutral neutral solidly earthed neutral earthed through a resistor via earthing transformer neutral earthed through Petersen coil All the set up and measured parameters can be visualized on the front panel display and transmitted on the RS485 communication serial port THRESHOLDS the following thresholds are available e 3 directional or non directional overcurrent thresholds e 3 directional or non directional earth fault thresholds earth current and residual voltage e 1 residual overvoltage threshold or e 3 directional or non directional under impedance thresholds SEB Divisione Elettronica e Sistemi GENERAL CHARACTERISTICS e 3 directional or non directional earth fault thresholds earth current and residual voltage e 1 residual overvoltage threshold The directional earth fault function can be selected as e 3INDEPENDENT DIRECTIONAL thresholds e DIRECTIONAL with NON operatin
30. I 67N TA Uo gt gt additional time delay on the threshold Uo gt gt ANSI 59N TA ALL additional time delay on all thresholds OF 6751 threshold S1 disabled ANSI 67 OF 6752 threshold S2 disabled ANSI 67 OF 6753 threshold S3 disabled ANSI 67 OF 5051 threshold S1 disabled ANSI 50 OF 5082 threshold 52 disabled ANSI 50 OF 5053 threshold S3 disabled ANSI 50 OF Z1 threshold Z1 disabled ANSI 21 OF Z2 threshold Z2 disabled ANSI 21 OF Z3 threshold Z3 disabled ANSI 21 OF 67NS1 threshold NS1 disabled ANSI 67N OF 67NS2 threshold NS2 disabled ANSI 67N OF 67NSA threshold NSA disabled ANSI 67N OF 67NS3 threshold NS3 disabled ANSI 67N OF Uo gt gt threshold Uo disabled ANSI 59N OF RR short time first reclosing function disabled ANSI 79 OF RL long time reclosing function disabled ANSI 79 OF RICH reclosing function disabled STATUS activation of status function see paragraph 1 48 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING CHINT switch gear CLOSE command detection ANSI 79 function APINT switch gear OPEN command detection ANSI 79 function G2 DIGITAL INPUT DIG2 SET UP programmable DIG2 XXXXXXXX Programming of the function related to digital input channel 2 DIG2 the selections available are the same as presented for DIG1 ref G1 plus the following MONITOR activation of pilot wire monitor function G3 G6 DIGITAL INPUTS DIG3 DIG6 SET UP programmable DIG3
31. MIN Z D thresholds Z1 Z2 Z3 ref 5 6 25 4 2 Selection EARTH 1 thresholds NS1 NS2 3 Uo ref 5 6 3 5 6 5 Selection EARTH2 thresholds NSA NS3 Uo gt gt ref 5 6 3 5 6 4 5 6 5 5 6 1 ANSI 67 thresholds programming fig 4 The information and set ups related to threshold S1 in the following points are effective for the thresholds S2 and S3 if not specifically written just taking into consideration the change of the threshold identification The available settings for each threshold are listed in Table A E1S ON OFF THRESHOLD programmable ANSI ww 51 ww ANSI code related to the threshold see selection C2 par 5 4 67 selection DIREZ 50 selection NO DIREZ ON enabled threshold OFF disabled threshold available but not active E2S CURRENT THRESHOLD LEVEL SET UP programmable Isl gt In nn nn nn nn threshold level referred to the current nominal value In Isl In Is2 gt In Is3 gt In 01 50 02 00 03 50 E3S VOLTAGE THRESHOLD LEVEL SET UP programmable Examples The voltage threshold level programming is presented only when the directional operation has been selected selection DIREZ par 5 4 ref C2 0758 Un n nnn n nnn threshold level referred to the voltage nominal value Un Examples USs gt Un USs gt Un 0 050 0 200 31 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING It is suggested to program the overvoltage threshold USs common
32. ONICA E SISTEMI UFFICIO COMMERCIALE Via Segantini 5 20825 BARLASSINA MB tel 39 0362 5669 1 fax 39 0362 556622 web www seb barlassina it mail to servizio clienti seb barlassina it
33. SO auto reclosing function in progress FAIL failed reclosing function function blocked 50 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING 5 11 Events fig 7 On the display are shown the memorized information related to the last 5 TRIP or STATUS events The 5 events are recorded and identified with a progressive number from 1 to 5 the more recent event shows a lower number Q1 EVENT NUMBER El cccccccc The index E1 E2 E5 identifies the memorized event The parameter gives information on the kind of event and it can show one of the following values NONE no event memorized 6751 event on trip threshold S1 ANSI 67 6752 event on trip threshold 52 ANSI 67 6753 event on trip threshold 53 ANSI 67 67NS1 event on trip threshold NS1 ANSI 67N 67NS2 event on trip threshold NS2 ANSI 67N 67NS3 event on trip threshold NS3 ANSI 67N 67NSA event on trip threshold NSA ANSI 67N 5081 event on trip threshold 51 ANSI 50 5052 event on trip threshold 52 ANSI 50 5053 event on trip threshold S3 ANSI 50 Uo event on trip threshold Uo gt gt ANSI 59N Z1 event on trip threshold Z1 ANSI 21 Z2 event on trip threshold Z2 ANSI 21 23 event on trip threshold Z3 ANSI 21 STATUS information recorded on external command POWER ON switch on of the protection relay auxiliary power CHINT switch gear closing command acquisition APINT switch gear opening command acquisition For the events NONE and POWER
34. TIME DEPENDENT characteristic has been programmed the selection will not be displayed The additional time delay TA is programmable from 00 00 to 99 99 seconds please note that at least one of the digital inputs should be programmed to activate the time delay function ref G1 G6 paragraph 5 8 The additional time delay TA is added to the time delay TI to obtain the output relay trip when the TI TA time expires The additional time delay TA will be added if the time delay TI is programmed at least equals to 50 ms digital input acquisition time 40 ms 33 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING E8S DIGITAL INPUT ACTIVE ON THRESHOLD non programmable TA S1 eeeeeee It shows the digital input programmed to activate the additional time delay TA on the displayed threshold The parameter eeeeeeee can show one of the following values DISABLED none of the digital inputs has been programmed to activate an additional time delay related to the threshold S1 DIG1 digital input DIG1 activates the TA delay on threshold S1 DIG2 digital input DIG2 activates the TA delay on threshold S1 DIG3 digital input DIG3 activates the TA delay on threshold S1 DIG4 digital input DIG4 activates the TA delay on threshold S1 DIG5 digital input DIG5 activates the TA delay on threshold S1 0106 digital input DIGG activates the TA delay on threshold S1 When a TIME DEPENDENT characteristic threshold has been programmed the visual
35. TION ON THRESHOLDS ANSI 67N 59N programmable F8 F9 F10 F11 F12 R1 67NS1 RI 67NS2 R1 67NS3 Rl 67NSA Rl Uo gt gt XXXXXXXX XXXXXXXX XXXXXXX XXXXXXXX XXXXXXXX Programming of the R1 output relay activation on the ANSI 67N and ANSI 59N thresholds as threshold 6751 ref F2 F13 OUTPUT RELAYS ACTIVATION ON AUTO RECLOSING FUNCTION Relay R1 R1 579 XXXXXXXX The parameter xxxxxxxx is selectable between the following NO AZION relay disabled on function ANSI 79 RICHIUS relay enabled as switch gear reclosing command 79 OK relay activation on successful reclosing function 79 FR relay activation on failed reclosing function 79 ON relay activation when reclosing function in progress F14 TEST OF OUTPUT RELAYS R1 TEST R1 XXXXXXXX See paragraph 4 4 5 8 Digital inputs function programming fig 6 For each digital input one of the following functions are selectable a additional time delay related to one or more thresholds only time definite threshold b ON OFF threshold see paragraph 1 STATUS function recording of measures on external command d pilot wire fault monitoring only DIG2 monitors DIG1 e switch gear close command detection ANSI 79 function f switch gear open command detection ANSI 79 function When the function of more than one digital input refers to a threshold the priority will be the following a OF selection threshold disabled has the priority on TA function additional time delay
36. When a sector width is defined equal to 180 the related overcurrent threshold NSA becomes NON directional and the overvoltage thresholds UA1 and UA2 gt will be indifferent As consequence is suggested to set up the threshold NS3 as NON directional threshold using the functional mode EARTH 1 instead of using the NSA threshold Examples 41 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING E8A TIME DELAY SET UP programmable TI INDIP XX XX S Set up of time delay to the activation TRIP of the programmed output relays when the directional threshold NSA operates The time delay is programmable from 00 02 to 99 99 S Example H I INDIP 01 50 s E9A ADDITIONAL TIME DELAY SET UP programmable TA NSA S The additional time delay TA is programmable from 00 00 to 99 99 seconds please note that at least one of the digital inputs should be programmed to activate the time delay function ref G1 G6 paragraph 5 8 The additional time delay TA is added to the time delay TI to obtain the output relay trip when the TI TA time expires The additional time delay TA will be added if the time delay TI is programmed at least equals to 50 ms digital input acquisition time 40 ms E10A DIGITAL INPUT ACTIVE ON THRESHOLD not programmable TA NSA eeeeeee It shows the digital input programmed to activate the additional time delay TA on the displayed threshold The parameter
37. added if the time delay TI is programmed at least equals to 50 ms digital input acquisition time 40 ms E8S DIGITAL INPUT ACTIVE ON THRESHOLD not programmable TA NS1 39 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING It shows the digital input programmed to activate the additional time delay TA on the displayed threshold The parameter eeeeeeee can show one of the following values DISABLED none of the digital inputs has been programmed to activate an additional time delay related to the threshold NS1 DIG1 digital input DIG1 activates the TA delay on threshold NS1 DIG2 digital input DIG2 activates the TA delay on threshold NS1 DIG3 digital input DIG3 activates the TA delay on threshold NS1 DIG4 digital input DIG4 activates the TA delay on threshold NS1 DIG5 digital input DIG5 activates the TA delay on threshold NS1 DIG6 digital input DIGG activates the TA delay on threshold NS1 When a TIME DEPENDENT characteristic threshold has been programmed the visualization is omitted as no additional time delays can be defined and programmed on time dependent delays More than one digital input can activate the same additional time delay e g DIG 1 3 Please note that to activate the additional time delay at least one of the digital inputs should be programmed ref G1 G6 paragraph 5 8 5 6 4 ANSI 67N threshold SA programming fig 5 E1A ON OFF THRESHOLD programmable ANSI 67N NSA ccc cc
38. al or NON directional trip condition on directional earth fault or residual overvoltage thresholds failed reclosing function The last trip condition threshold indication is also showed on front panel display more information on trip condition are presented in the recorded EVENT see par 5 11 15 SEB Divisione Elettronica e Sistemi PROGRAMMING AND TEST 4 PROGRAMMING AND TEST The protection relay is easily programmable following the instructions in the next paragraphs e HOW TO PROGRAM THE PROTECTION RELAY e HOW TO MODIFY A VISUALIZED PARAMETER All parameters can be freely modified the proper protection set up as required by the plant management is submitted to the operator s judgment 41 How to program the protection relay The programmable parameters are showed in Figures 3 4 5 6 and 7 at the following references B2 B7 relay address RS485 and date time C1 protection relay function and insertion D1 D9 nominal values contrast etc E1S E8S thresholds and time delays ANSI 67 and ANSI 50 51 E1Z E9Z thresholds and time delays ANSI 21 E1N thresholds and time delays ANSI 67N E1A ESA thresholds and time delays ANSI 67N EARTH 2 E1V ESV thresholds and time delays ANSI 59N 1 E11R thresholds and time delays ANSI 79 1 14 output relays functions G1 G6 digital input functions H1 special function R1 R22 partial trip counters reset The programming sequence is the follo
39. artial counters of the output relay activation on TRIP conditions for each thresholds and the numbers of programming sessions with the date and time of the last confirmed programming session The total counters the number of confirmed programming sessions and the date and time of the last confirmed programming session are not modifiable or resettable the information related to the last programming session are used to control unauthorized access The partial counter can be modified following the standard set up procedure for parameters as described at paragraph 4 2 the partial counters are immediately modified in the memory the recorded values are immediately resetted without the need of the programming confirmation R1 R22 TRIP COUNTERS S1 S1 P ecec T EEE Display of the partial P and total T counters of the TRIP condition related to each threshold When the value exceed 9999 the counter starts again from 0000 The counters are identified by the threshold name 6751 6752 6753 67NS1 67NS2 67NS3 67NSA 5051 5052 5083 Uo gt gt Z1 Z2 Z3 only the counter related to the active thresholds are shown see selections to ref C1 and C3 R23 R25 TOTAL PROGRAMMING SESSIONS AND DATE TIME OF THE LAST PROGRAMMING SESSION PRG DATE PRG TIME PRG eeee dd mm yy hh mm ss Display of the number of confirmed programming sessions from the factory set up and the date and time of the last confirmed programming session
40. ated NORM OFF normally de energized energized status on activation NORM ON normally energized de energized status on activation F2 F4 OUTPUT RELAY ACTIVATION ON THRESHOLDS 67 50 programmable When the directional overcurrent function ANSI 67 selection DIREZ par 5 4 ref C2 is enabled the following information is displayed F2 F3 F4 Rl 6751 Rl 6752 R1 6753 XXXXXXXX XXXXXXXX XXXXXXXX When the NON directional overcurrent function ANSI 50 selection NO DIREZ par 5 4 ref C2 is enabled the following information is displayed F2 F3 F4 Rl 5051 Rl 5052 R1 5053 XXXXXXXX XXXXXXXX XXXXXXXX The parameter xxxxxxxx is selectable as the following START instantaneous output relay R1 activation when one of the measured currents exceeds the programmed threshold TRIP output relay R1 activation when one of the measured currents exceeds the programmed threshold level for at least Tl or TI TA seconds NONE no activation related to thresholds F5 F7 OUTPUT RELAYS ACTIVATION ON THRESHOLDS ANSI 21 programmable When the under impedance function ANSI 21 directional or NON directional is enabled the following information is displayed FS F6 F7 R1 21 R1 22 R1 23 Programming of the R1 output relay activation on the Z1 Z2 and Z3 thresholds as threshold 6751 ref F2 46 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING F8 F12 OUTPUT RELAYS ACTIVA
41. ated overcurrent threshold Sx becomes NON directional ANSI 50 51 and the overvoltage threshold USs gt will be indifferent Examples 32 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING E6S TIME DELAY SET UP programmable TI eeeee XX XX S Set up of the time delay to the activation TRIP of the programmed output relays when the directional thresholds operates Parameter eeeee time delay characteristic For the S1 threshold the time delay can be selected between one of the followings INDIP definite time delay DIP A time delay as curve A IEC 255 4 inverse time DIP B time delay as curve B IEC 255 4 very inverse time DIP C time delay as curve C IEC 255 4 extremely inverse time For the thresholds S2 and S3 the TI parameter is fixed as INDIP definite time Parameter xx xx Time definite time delay seconds to activate the programmed output relays the output relay trips when the measured current exceeds the threshold level programmable from 00 02 to 99 99 s Time dependent value of the parameter K see formulas paragraph 7 TI DIP B TI DIP A TI INDIP 02 50 K 10 00 K 03 25 5 NOTE the index K or s is shown coherently to the selected time delay characteristic when the push button ENTER is pressed E7S ADDITIONAL TIME DELAY SET UP programmable TA 51 5 The selection is displayed only when a TIME DEFINITE characteristic has been selected TI INDIP at ref E6S when
42. c ES 25 MM 15 MM TOHSHYHL S IVNDIS SAYASVAN 011 61 81 1 91 81 v1 el c1 V1 60044 WAIANOD Lr SNuL NOT LONOA VISONWMHNWN IVIONdS LH XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX SINANI 9914 GDIG DId 99 99 9 eo S FYNOIH Uo y 34NOIW won 24 DISPLAY AND PROGRAMMING SEB Divisione Elettronica e Sistemi 1 eunBi4 Ss uu uu 66 Dens 2999 L 09099 0999 L 0999 d ANIL ALVA LOL on N6G on N6G SN NL9 SN NL9 voy EZH 124 OC 614 2922 L 2999 L 4 L 4 4 VSN NL9 VSN NL9 ZSN NL9 ZSN NL9 TSN NL9 ISN NL9 ez 81H 114 OLY SLY viu ely 614 4 L 4 2999 4 2999 2999 L 2999 1 ez TZ 24 TZ 227 TZ TZ TZ TZ TZ ES XX ES XX 25 25 TS XX TS XX SUALNNOD LLY Old 6 ZH 9 SH vH
43. c ON enabled threshold OFF disabled threshold available but not active E2A E3A CURRENT THRESHOLDS LEVEL SET UP programmable E2A E3A 1 gt Ion TA2 gt Ion n nnn n nnn n nnn threshold level referred to the current nominal value lon IA1 gt IA2 gt 0 050 In 0 100 In NOTE The threshold level IA2 gt must be greater or equal to the threshold level IA1 gt it the condition is not verified an error message will be displayed Examples 40 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING E4A E5A OVERVOLTAGE THRESHOLDS LEVEL SET UP programmable E4A E5A gt Uon UA2 gt Uon n nnn n nnn n nnn threshold level referred to the voltage nominal value Uon UA1 gt Uon UA2 gt Uon 0 500 0 100 NOTE The threshold level UA1 gt must be greater or equal to the threshold level UA2 gt it the condition is not verified an error message will be displayed Examples E6A CHARACTERISTIC ANGLE SET UP programmable DNA nnn tnnn programmable from 180 to 180 The characteristic angle is defined with the measured voltage as reference see paragraph 1 1 DNA DNA 090 075 Please use the down arrow push button to select the sign or the digit to be modified Examples E7A SECTOR WIDTH SET UP programmabile DONA o nnn nnn programmable from 015 to 180 It represents the width of the angular sector see paragraph 1 1 DONA DONA 090 180 NOTE
44. cc XXXXXXXX Programming of the function related to digital input channel 3 DIG3 the selections available are the same as presented for DIG1 ref G1 5 9 Special function voltage memory function fig 6 When the relay is working as directional overcurrent relay ANSI 67 or a directional impedance relay ANSI 21 the VOLTAGE MEMORY function can be programmed by the operator When the function is active if a close fault condition occurs and the reference voltage suddenly drops to very small values lower than the threshold USs gt related to the directional overcurrent thresholds S1 S2 S3 or lower then threshold UZs gt related to the directional under impedance thresholds Z1 Z2 Z3 the protection relay keeps for 500 ms a memorized reference voltage corresponding to the system voltage prior to the fault and thus the relay can operate properly The memorized reference voltage is related to system frequency before the incidence of the fault MEMORIA TENS ON enabled function OFF disabled function 5 10 Parameter values visualization fig 6 L1 L12 THRESHOLDS STATUS The actual status of each threshold or the status of the auto reclosing function is displayed For each threshold are displayed the threshold identification 6751 67NS2 etc and the threshold status the status can show one of the following values 49 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING ON active thresh
45. ction will stay inhibited until the protection relay acquires the following signals e protection RESET e SWitch gear closing command CHINT Two of the digital input 6 available must be programmed as SWitch gear closing command CHINT e switch gear opening command APINT Switch gear closing command CHINT When detected by the protection relay programmed digital input see 5 8 the switch gear closing command CHINT will cause the reset of the auto reclosing function ready to operate The command is managed equivalent to the first reclosure RR Switch gear opening command APINT When detected by the protection relay programmed digital input see 5 8 the switch gear closing command CHINT will cause the reset and inhibition of the auto reclosing 12 SEB Divisione Elettronica e Sistemi GENERAL CHARACTERISTICS function the inhibition will stay inhibited until the protection relay acquires a protection RESET command or a switch gear closing command CHINT The following signaling functions can be programmed on output relays e successful reclosing function 79 OK e failed reclosing function 79 FR e reclosing function in progress 79 ON When the signaling function 79 OK and 79 FR are active the related output relays will be activated for 1 sec the relay programmed as 79 ON will stay activated during the reclosing function operations The status of the last reclosing operation is recorded in the EVENT
46. d an output relay one at the time to trip from the current status allowing functional tests on electrical plants The output relays are activated with the following sequence 1 SELECT THE VISUALIZATION of the desired output relay to be tested TEST R1 OFF 2 PRESS ENTER to activate the test session the message OFF will start to blink 3 PRESS and the message on the display will change as TEST R1 ON 4 PRESS ENTER to command the instantaneous trip of the output relay change of the current status The relay will stay on the new condition until e the 5 RESET push button is pressed e the ENTER push button is pressed and the sequence at points and 4 is repeated presenting OFF condition The same procedure will be used for R2 and relays 18 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING 5 DISPLAY AND PROGRAMMING The contents and the structure of the displayed messages are shown in figures 3 7 the references A1 B1 B2 etc identify specific displayed messages in the figures 51 Standard display fig 3 A1 STANDARD DISPLAY fig 3 It is the standard displayed message without operator s intervention no push buttons pressed for at least 5 minutes or when the RESET push button has been pressed The displayed information is function of the protection relay status NORMAL FUNCTIONING During this state the following information can be visualized as defined by set up
47. ed by the protection relay B4 ADDRESS programmable NR RELAY 001 Programmable address from 001 to 255 The number is used on RS485 port to address a specific relay when two or more protection relays are linked on the same serial line B5 RELAY SERIAL NUMBER not programmable SER NR 0012345 26 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING B6 SOFTWARE REVISION LEVEL not programmable SW REV ZZ ZZ B7 TIME DATE programmable dd mm yy hh mm ss Time and date are programmable and they are used to mark recorded events NOTE the clock is not provided with back up battery therefore a loss of auxiliary supply will force time date to the following condition 01 01 90 00 00 00 5 4 Function selection fig 3 C1 FUNCTION SELECTION programmable FUNCTION XXXXXXXX The selection of the function performed by the protection relay defines the available thresholds AVAILABLE FUNCTION ANSI SELECTION THRESHOLDS 2 phase overcurrent 67 directional or non directional 50 51 2 PHASE 3 phase overcurrent 67 directional or non directional 50 51 VPHASE ES Under impedance using phase to phase voltages 21 Z1 Z2 Z3 directional or non directional Under impedance using phase to earth voltages 21 MIN Z Y Z1 Z2 Z3 directional or non directional The directional earth fault function 67N thresholds NS1 NS2 NS3 and NSA and the residual overvoltage function 59N threshold U
48. eeeeeeee can show one of the following values DISABLED none of the digital inputs has been programmed to activate an additional time delay related to the threshold NSA DIG1 digital input DIG1 activates the TA delay on threshold NSA DIG2 digital input DIG2 activates the TA delay on threshold NSA DIG3 digital input DIG3 activates the TA delay on threshold NSA DIG4 digital input DIG4 activates the TA delay on threshold NSA DIG5 digital input DIG5 activates the TA delay on threshold NSA DIG6 digital input DIGG activates the TA delay on threshold NSA More than one digital input can activate the same additional time delay e g DIG 1 3 Please note that to activate the additional time delay at least one of the digital inputs should be programmed ref G1 G6 paragraph 5 8 42 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING 5 6 5 ANSI 59N threshold Uo gt gt programming fig 5 The available settings for each threshold are listed in Table A E1V ON OFF THRESHOLD programmable ANSI 59N Uo gt gt ccc ccc ON enabled threshold OFF disabled threshold available but not active E2V VOLTAGE THRESHOLD LEVEL SET UP programmable Uo gt gt Uon n nnn n nnn threshold level referred to the voltage nominal value Uon Examples Uo gt gt 0 050 E3V TIME DELAY SET UP programmable TI INDIP XX XX S Set up of the time delay to the activation TRIP of the programmed output relays when the
49. g 6 EVENTS Display of EVENTS data Fig 7 COUNTERS Display of COUNTERS data Fig 7 Figure 3 21 DISPLAY AND PROGRAMMING SEB Divisione Elettronica e Sistemi y eun6i4 9 9 14 ely S XX XX S XX XX o UUU o UUU uuu u 2514 CSN WL 25 WL 09999 IL Z SNOd 25 200 201 NL9 ISNY S XX XX S XX XX o UUU uuu u uuu u ISN WL ISN WL 090999 IL TSNOU uon ron UOI lt TOI NL9 ISNV N81 NZ3 N93 NSA Nya Neg Nea NLA uonoejes LHL MWA spiouseuu LINVA HLYVA TWNOILOSUIG ZSN PUE SN S XX XX S XX XX Q UUU o UUU un uuu u XX XXXXX uz u uuu EZ Z VI Z WL 209999 IL 20 lt szn uuo gt EZ gt EZ Ic ISNV S XX XX S XX XX Uuu o UUU un uuu u XX XXXXX uz u uuu
50. g zone around the origin see 1 4 1 The available settings for each threshold are listed in Table A the operation of the directional thresholds is described in paragraph 1 1 TRIP DELAYS a programmable time delay is available for each threshold it can be programmed as definite time the first threshold of the function ANSI 67 50 51 91 and ANSI 67N 51N NS1 can be programmed as time definite or time dependent in compliance with IEC 255 4 standard For each threshold programmed as definite time an additional programmable time delay TA is available the additional time delay is added to time delay TI The additional time delay activation is controlled by the digital inputs to allow the use of the ZFD8N relay with cooperating protection relays The available settings for each time delay are listed in Table A OUTPUT RELAYS the ZFD8N controls 4 output relays named R1 R2 R3 and R4 these relays can be programmed to be activated on START or TRIP conditions of one or more thresholds START instantaneous activation of the output relay when at least one of the measured current or parameter exceeds the programmed threshold value TRIP activation of the output relay when the programmed time delay or TI TA related to a threshold expires The output relays can be also programmed on auto reclosing functions ANSI 79 such as reclosing command to switch gear successful reclosing function 79 OK failed reclosing functio
51. gital input are suspended as the DIG1 status cannot be longer considered as true The fault condition is reported when DIG1 and DIG2 signals are not complementary for more then 100 ms REMOTE COMMUNICATION the opto insulated serial port RS485 can communicate with a personal computer or a remote control and monitoring system equipped with an RS485 interface or with a standard RS485 RS232 converter It is possible to select the communication standard between STANDARD ASCII 7 bit Seb protocol or MODBUS ASCII mode SLAVE All the set up and measured parameters can be transmitted on the RS485 communication serial port when communication is active LED REMOTE glows the operator on front panel can visualize the relay set up but changes of parameters are disabled ENTER and buttons disabled VOLTAGE MEMORY FUNCTION when the relay is working as directional overcurrent relay ANSI 67 or a directional impedance relay ANSI 21 the VOLTAGE MEMORY function can be programmed by the operator When the function is active if a close fault condition occurs and the reference voltage suddenly drops to very small values lower than the threshold USs gt related to the directional overcurrent thresholds S1 S2 S3 or lower then threshold UZs gt related to the directional under impedance thresholds Z1 Z2 Z3 the protection relay keeps for 500 ms a memorized reference voltage corresponding to the system voltage prior to the fault and thus the relay
52. graph 5 3 When the STANDARD SEB communication protocol is selected the transmission speed is automatically selected between 300 to 9600 bauds and the protocol is ASCII HEX When the MODBUS communication protocol is selected the transmission speed can be programmed between 300 to 9600 bauds ref B3 par 5 3 To integrate the protection relay in control systems the documentation related to the protocol is freely available on request It is suggested to use a shielded twisted pair AWG22 terminal 19 not connected internally can be used for shields connections 61 SEB Divisione Elettronica e Sistemi INSTALLATION 120 Ohm 120 Ohm 1 CONTROLLORE PROTEZ 1 PROTEZ 2 PROTEZ 3 It is suggested to terminate the serial line with a resistance 120 O 1 4 W 62 SEB Divisione Elettronica e Sistemi TIME DEPENDENT CURVES IEC 255 4 7 TIME DEPENDENT CURVES IEC 255 4 Curva Curve B Curva Curve A 1000 t SECONDI t SECONDI 01 OO van o 1 lthresh Curva Curve C 1000 0 1 1 linresh 20 15 K 001 1000 t SECONDI 2 lthresh Time dependent characteristic Ki K
53. ill appear a blinking cursor If no parameters are modifiable no blinking cursor will appear 2 MODIFY THE PARAMETER pressing the arrow push buttons and when two parameters are modifiable the push button allows to point out the parameter to be modified the selected parameter will blink when numerical parameters are pointed out the push button allows to select the digit to be modified increasing of the parameter a the digits are increased by 1 unit b the other parameters are presented following the selection list 3 PRESS ENTER to end parameter modification session The modification session is ended and the parameter stops to blink NOTE if a numerical parameter is selected out of the accepted range as shown in Table A when the push button ENTER is pressed for few seconds an error message will be displayed as Data Error and the parameter will be displayed again with the former value 4 3 Reset When the push button RESET is pressed the protection relays returns to the standard condition 17 SEB Divisione Elettronica e Sistemi PROGRAMMING AND TEST e reset of glowing LED s e drop off of tripped relays e reset of any parameter changed but not confirmed parameters are shown as confirmed at the end of the last programming session e display on STANDARD MODE Fig 3 ref A1 par 5 1 4 4 Test of output relays When the output relays test is selected Fig 5 ref F14 it is possible to comman
54. ime delay are listed in Table A NOTE t is suggested to program the overvoltage threshold USs common to the 3 thresholds at the minimum value allowed by the installation characteristics to obtain the relay operates independently from the voltage level it is suggested to avoid to program the threshold USs gt lower then 1 V VT secondary value VOLTAGE MEMORY FUNCTION When the function is active if a close fault condition occurs and the reference voltage suddenly drops to very small values lower than the threshold USs gt related to the directional overcurrent thresholds S1 S2 S3 the protection relay keeps for 500 ms a memorized reference voltage corresponding to the system voltage prior to the fault and thus the relay can operate properly The memorized reference voltage is related to system frequency before the incidence of the fault 2 PHASE or 3 PHASE INSERTION it is possible to select 2 PHASE or 3 PHASE insertion ref paragraph 5 4 C1 depending on CT s available For the insertion please refer to figure 8 paragraph 6 CHARACTERISTIC ANGLES when it operates as directional overcurrent the following characteristic angles are suggested refer to figure 3 for the surveillance direction 5 30 for MV feeders and ring mains Sx 45 for transformer feeders in order to ensure correct relay operation for fault beyond the transformer For these applications the suggested sector width D Sx is 83 In main ring
55. in Table A 1 6 Under impedance ANSI 21 The under impedance relay is used as back up protection to generators and generator transformer groups for the following functions e overcurrent e loss of excitation e under excitation The operating characteristics are the followings DIRECTIONAL under impedance circular sector on the plan R X NON DIRECTIONAL under impedance circle on the plan R X SEB Divisione Elettronica e Sistemi GENERAL CHARACTERISTICS DIRECTIONAL OPERATION There are available 3 directional independent under impedance thresholds defined by the following parameters threshold 21 Z1 lt UZs gt 21 lt parameter 971 and DOZ1 threshold Z2 Z2 lt UZs gt DZ2 lt parameter 22 and DOZ2 threshold Z3 Z3 lt UZs gt Z3 lt parameter 23 and DOZ3 Each under impedance threshold Zx lt and each angular sector characteristic angle 2 and sector width D Zx is independently programmable the voltage threshold UZs gt is common to the 3 directional threshold and it is defined in the Z1 threshold programming section The thresholds are definite time only It is suggested to program the overvoltage threshold UZs common to the 3 thresholds at the minimum value allowed by the installation characteristics to obtain the relay operates independently from the voltage level it is suggested to avoid to program the threshold UZs gt lower then 1 V VT secondary value The under impedance thresholds are
56. isione Elettronica e Sistemi INSTALLATION 24 25 26 1 27 2 28 3 29 4 30 5 31 E 32 7 33 34 35 9 10 36 37 38 12 13 39 40 14 di 45 42 16 43 17 44 18 19 M 20 48 21 22 23 CB2 CB1 Terminal inputs position REAR VIEW Figure 10 59 SEB Divisione Elettronica e Sistemi INSTALLATION Dimensioni meccaniche Case outlines Dima montaggio da incasso Flush mounting panel cut out Dimensioni frontali mini rack per incasso Mini rack front sizes flush mounting 198 2 x 177 4U mm L L 101 5 0 3 60 N 4 fori 26 3 Raggio max 7 162 0 1 SEB Divisione Elettronica e Sistemi INSTALLATION 6 3 Relays R3 and R4 Signaling Command set up The protection relay is supplied with R3 and R4 relays configured as SIGNALING RELAYS with 2 change over output contacts with breaking capability equals to 0 2 A at 110 L R 40 ms 100000 operations Each R3 and R4 relay can be configured as COMMAND RELAY with 1 change over output contact with breaking capability equals to 0 5 A at 110 Vdc L R 40 ms 100000 operations The new configuration is obtained with the following cabling 6 4 RS485 serial communication port The digital protection relay ZFD8N presents an insulated serial interface RS485 half duplex that allow the multi drop connection up to 31 protection units There are available 2 selectable communication protocols ref B2 para
57. ization is omitted as no additional time delays can be defined and programmed on time dependent delays More than one digital input can activate the same additional time delay e g DIG 1 3 Please note that to activate the additional time delay at least one of the digital inputs should be programmed ref G1 G6 paragraph 5 8 5 6 2 ANSI 21 thresholds programming fig 4 The information and set ups related to threshold Z1 in the following points are effective for the thresholds Z2 and Z3 if not specifically written just taking into consideration the change of the threshold identification The available settings for each threshold are listed in Table A E1Z ON OFF THRESHOLD programmable ANSI 21 21 CCE ccc ON enabled threshold OFF disabled threshold available but not active E2Z UNDER IMPEDANCE THRESHOLD LEVEL SET UP programmable Zi Zn n nnn n nnn threshold level referred to the impedance nominal value Zn Examples 34 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING 71 Zn Z2 lt Zn 23 lt Zn 0 550 2150 3 500 2 UNDER IMPEDANCE THRESHOLD VISUALIZATION IN OHM programmable Zi Ohm XXXX XX XXXX XX threshold level presented as Ohm primary values see par 1 6 E4Z VOLTAGE THRESHOLD LEVEL SET UP programmable The voltage threshold level programming is presented only when the directional operation has been selected selection DIREZ par 5 4 ref C2
58. lay on threshold Uo gt gt More than one digital input can activate the same additional time delay e g DIG 1 3 Please note that to activate the additional time delay at least one of the digital inputs should be programmed ref G1 G6 paragraph 5 8 5 6 6 ANSI 79 Auto reclosing function programming fig 5 The available settings for each parameter are listed in the table at paragraph 1 7 The programming of the auto reclosing function will not be available when the under impedance function has been selected selection MIN Z Y or MIN Z D at FUNCTION par 5 4 ref C1 E1R AUTO RECLOSING FUNCTION ENABLED programmable ANSI 79 ON enabled function OFF disabled function E2R ADDITIONAL RECLOSURES programmable R LENTE NRL n n number of enabled additional reclosures 0 4 E3R E4R SHORT TIME RECLOSING DEAD and RECLAIM TIME PROGRAMMING programmable E3R E4R TRR TN1 XXX X S XXX X S TRR DEAD TIME short time first reclosure TN1 RECLAIM TIME short time first reclosure TRR TN1 000 3 5 005 0 5 44 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING E5R E7R LONG DEAD TIME RECLOSURES PARAMETER programmable E5R EGR E7R TRL TN2 XXX X S XXX X S XXX X S TRL Long dead time TN2 Reclaim time TD Lockout time inhibition of further reclosures E8R E9R E10R E11R THRESHOLDS ENABLING ON AUTO RECLOSING FUNCTION programmable
59. mable from 000001 to 999999 V D8 STANDARD DISPLAY SELECTION programmable It allows to select the standard displayed information ref A1 when no trip condition occurs and no fault condition has been detected by the self diagnosis module the available selections are the following SELECTION DISPLAY ANSI code of the ANSI available functions SELECTION DISPLAY STATO 79 CEI reclosing function status PHASE1 Angle U1 11 PHASE2 Angle 02 12 PHASE3 Angle U3 13 o 0 lu votagevi ur Votage uz uo votagevo Angie zi _ z2 wa The presented selection are coherent with the functions selected at ref C1 C2 and C3 e g when selected 2 PHASE the impedance selection will not be presented DISPLAY 2221 ANSI 1 D9 DISPLAY CONTRAST LEVEL programmable CONTRAST LIV x The display contrast level is programmable from O to 9 The backlighted display is switched off if no push button is pressed for at least 5 minutes when one of the front panel push button is pressed the display is switched on Examples 5 6 Thresholds and time delays set up fig 4 Only the thresholds enabled at the FUNCTION SELECTION ref C1 and EARTH FAULT MODE SELECTION C3 are presented 30 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING Selection 2 PHASE 3 PHASE thresholds 51 52 S3 ref 5 6 15 4 1 Selection MIN Z Y
60. memory related to the following TRIP condition of the protection relay 13 SEB Divisione Elettronica e Sistemi FRONT PANEL KEYS 2 FRONT PANEL KEYS The 5 push buttons on the front panel allow to visualize all the protection parameters and to modify the protection set up 2 right arrow down arrow programming session activation or parameter confirmation change or increment of the selected parameter RESET VISUALIZATION OF PARAMETERS reset of the protection relay rif par 4 3 e all visualizations are circular and they can be displayed using the two arrow push buttons e the structure of the visualizations and their contents are showed in Fig 3 4 5 6 and 7 e when the sealable transparent front panel is installed only the arrow push buttons and the RESET push button are accessible to prevent unauthorized modification of the protection set up MODIFICATION OF PARAMETERS e remove the transparent sealable front panel to access ENTER and push buttons 14 SEB Divisione Elettronica e Sistemi FRONT PANEL LED SIGNALING 3 FRONT PANEL LED SIGNALING POWER green FAIL red REMOTE red 21 67 50 red 67N 59N red FR S red auxiliary supply available fault condition detected by SELF DIAGNOSIS software or by PILOT WIRE FAULT MONITORING function communication session active on RS485 port trip condition on under impedance or overcurrent thresholds direction
61. n 79 FR reclosing function in progress 79 ON The quiescent state of each single relay R1 R2 R3 and R4 can be programmed as normally energized ON or normally de energized OFF An additional relay R5 normally energized is controlled by the self diagnosis routines to report detected fault conditions Related to each threshold partial and total counters of TRIP conditions are available SEB Divisione Elettronica e Sistemi GENERAL CHARACTERISTICS DIGITAL INPUTS there are available 6 digital inputs to activate the following functions when enabled by the programmed set up additional time delay related to one or more thresholds on off thresholds STATUS function recording of measures on external event pilot wire fault monitoring sensing of commands to the switch gear close open For each digital input can be programmed the condition that activates the related functions HI voltage gt 20 V dc ac LO voltage 0 10 V dc ac The digital input acquisition is valid when the voltage value stays in the range HI or LO for at least 40 ms DISPLAY OF MEASURES the user can select the continuous display of a measured parameter current voltage phase impedance etc all the measured and computed parameters can be transmitted to an external controller through the RS485 port EVENTS information related to the last 5 events TRIP or STATUS are recorded in the EEPROM memory Information includes the threshold
62. o gt gt are always available Examples FUNCTION FUNCTION FUNCTION 2 PHASE 3 PHASE MIN Z Y 27 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING C2 SET UP DIRECTIONAL OPERATIONS programmable SET DIR XXXXXXXX The set up of the directional operations allows to select the DIRECTIONAL or NON DIRECTIONAL operating of the overcurrent thresholds ANSI 67 or ANSI 50 51 or under impedance thresholds ANSI 21 as selected at ref C1 The NON DIRECTIONAL OPERATION of only one threshold can also be obtained programming the sector width equals to 180 see paragraph 1 1 OPERATION SELECTION ANSI 67 when selected TE 2 PHASE 3 PHASE Directional operation m when selected MIN Z D or MIN Z Y 50 51 when selected 2 PHASE or 3 PHASE NON directional operation 91 when selected MIN Z D or MIN Z Y Examples SET DIR SET DIR DIREZ NO DIREZ C3 EARTH FAULT MODE SELECTION programmable MOD 67N XXXXXXXX It allows to define the operation mode of the directional earth fault thresholds ANSI 67N see paragraph 1 4 and 1 4 1 the following selections are available AVAILABLE EARTH FAULT MODE ANSI SELECTION THRESHOLDS Directional earth fault thresholds 67N and residual overvoltage threshold 59N INHIBITED Directional earth fault with 3 67N EARTH 1 NS1 NS2 NS3 Uo independent thresholds Directional earth fault with NON Pug NSA NS3 Uc operating zone 28 SEB Divisione Elett
63. old OFF disabled threshold programmed OFF at ref E1 see par 5 6 1 5 6 5 OFF DIG threshold programmed active but disabled by a digital input actual status ref G1 G6 paragraph 5 8 Examples 67 S1 67 52 67 53 OFF M1 M2 OUTPUT RELAY STATUS The actual status of each output relay is displayed for each relay the following information is displayed e relay identification R2 R3 R4 e relay status ON activated OFF non activated Note that ON OFF do not necessary mean energized or de energized see ref G1 N1 N2 DIGITAL INPUT STATUS The actual status of each digital input is displayed For each digital input the following information is presented e digital input identification DIG1 DIG2 DIG3 DIG4 DIG5 DIG6 e digital input status HI or LO P1 P18 MEASUREMENT DISPLAY The actual values of the measures and of the computed parameters are displayed currents voltages phase angles impedances the parameters related to disabled thresholds are not displayed For each measure the following information is displayed measure identification 11 12 13 lo 01 actual values expressed as In lon Un Uon Zn etc actual primary values For the auto reclosing function the following information is displayed ON enabled auto reclosing function OF disabled auto reclosing function programmed OF DIG enabled auto reclosing function temporarily disabled by a digital input IN COR
64. pressed in terms of Zn and impedance Ohm The impedance value is function of e plant CT s ratio e plant VT s ratio e n of circuits x1 insertion MIN Z Y x2 insertion MIN Z D MINIMUM CURRENT INHIBITION 0 1 In The under impedance function is inhibited when the measured current is lower than 0 1 In When the measured voltage is lower than the programmable voltage threshold UZs common to the 3 thresholds and the related measured current is greater than 0 1 In the relay trips when non directional function is selected activates the voltage memory function when the directional function is selected VOLTAGE MEMORY FUNCTION When the function is active if a close fault condition occurs and the reference voltage suddenly drops to very small values lower than the threshold UZs gt related to the directional overcurrent thresholds Z1 Z2 Z3 the protection relay keeps for 500 ms a memorized reference voltage corresponding to the system voltage prior to the fault and thus the relay can operate properly The memorized reference voltage is related to system frequency before the incidence of the fault 1 7 Auto reclosing function ANSI 79 The multi shot auto reclosing function can be activated for one or more of the thresholds related to ANSI 67 50 51 67N 51N and 59N 59Vo the auto reclosing is INHIBITED when the under impedance function ANSI 21 is selected The function starts when one of the threshold ENABLED on the au
65. programmable the threshold NS1 can be programmed as definite time or dependent time whilst the remaining thresholds are time definite only see curves paragraph 7 Each threshold NS1 NS2 and NS3 can be activated or disabled by the user The protection operates on the directional threshold NSx if AT THE SAME TIME the measured current and voltage are greater than the thresholds lox and Uox gt and if the current phasor is in the angular sector NSx defined as ONSx DONSx with the measured voltage as reference The available settings for each time delay are listed in Table A 1 4 1 Directional earth fault with non operating zone around the origin The thresholds 1 and N2 current thresholds lo1 gt and lo2 gt and voltage thresholds Uo1 gt and Uo2 gt are logically combined OR to obtain the threshold NA and they allow you to have an operating voltage current characteristic as showed in figure 2 for any characteristic angle 5 lt this characteristic allows very low voltage and current thresholds with a NON operating zone around the origin the threshold N3 remains independent The threshold NSA has only one angular sector threshold lt defined by the parameters and DONA NSA logical OR threshold NS1 lof Uo1 gt threshold NS2 lo2 gt Uo2 angular sector threshold lt DONA The constraints on the current and voltage thresholds are the followings lo1 gt lt 102 gt 1 gt gt
66. ronica e Sistemi DISPLAY AND PROGRAMMING Examples MOD 67N MOD 67N MOD 67N EARTH 1 OFF EARTH 2 5 5 Nominal values set up fig 4 D1 NOMINAL CURRENT SELECTION In programmable x A In x A Ion 1 A 5 A In nominal phase current programmable 1 A or 5 A lon nominal earth current defined by models manufacturer set up lon 5 A ZFD8N model A5 see ref B1 lon 1 A ZFD8N model A1 see ref B1 D2 D3 NOMINAL VOLTAGE SELECTION Un and Uon programmable D2 D3 Un Uon V V Un nominal line voltage selection nominal secondary voltage of plant VT s Uon nominal residual voltage selection nominal secondary residual voltage VT selectable between the followings 57 73 63 50 72 16 100 110 125 190 220 230 380 400 D4 05 PRIMARY PHASE AND EARTH CURRENT programmable D4 D5 In prim Ion prim XXXXX XXXXX In prim primary phase current value of the installed phase CT s lon prim primary current value of the installed earth CT s The values are programmable from 0001 to 18500 A NOTE when Holmgreen insertion is used select lon prim In prim D6 D7 PRIMARY VT s VOLTAGES programmable D6 D7 Un prim Uon prim XXXXXX V XXXXXX V Un prim primary voltage value of the installed line VT s 29 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING Uon prim primary voltage value of the installed residual VT s The values are program
67. s it is possible to use the pilot wire thresholds with additional time delay controlled by digital inputs that allows a shorter time to disconnect the faulty section two delay values and the same threshold independently of the number of sections NON DIRECTIONAL OPERATION When a sector width D Sx is defined equal to 180 the related overcurrent threshold Sx becomes non directional ANSI 50 51 for the available settings of the thresholds please refer to Table A SEB Divisione Elettronica e Sistemi GENERAL CHARACTERISTICS 1 3 Phase overcurrent ANSI 50 51 At function selection level ref paragraph 5 2 C2 it is possible to select the NO DIREZ NON directional selection the selection is effective for ALL THE OVERCURRENT THRESHOLDS and the protection operates as NON DIRECTIONAL overcurrent ANSI 50 51 When the NO DIREZ selection is active only the overcurrent thresholds are presented 151 gt 152 1532 1 4 Directional earth fault 3 independent thresholds The 3 independent directional earth fault thresholds are defined by the followings threshold 1 lo1 gt 1 gt NS1 lt parameters 51 and 51 threshold 2 lo2 gt Uo2 NS2 lt parameters 52 and 52 threshold NS3 lo3 gt Uo3 53 lt parameters 53 and DONS3 Each current threshold lox voltage threshold Uox and each angular sector characteristic angle 5 and sector width D NSx is independently
68. tected fault condition on pilot wire the function related to DIG1 digital input is suspended Corrective action verify pilot wire short or open circuit The string eeeeeeee can be HARDWARE Detected fault condition on hardware or software resources of the protection relay all functions are suspended Corrective action replace the protection relay and contact Seb post sales service 20 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING 5 2 Visualization structure A1 ANSI ALTERNATIVE FAIL TRIP Z1 ohm XX XXX DISPLAYS eeeeeeee S1 1 B2 B3 B4 B5 B6 B7 ZFD8N PROTOCOL BAUDRATE NR RELE NR SERIE VERS SW gg mm aa mod nn YYYYYYYY nnnn XXX ZZZZZZZZ 22 22 hh mm ss C1 FUNCTION aaaaaaaa LINEA B LINEA T MIN Z MIN Y Function selection C2 PREDISP aaaaaaaa DIREZ NO DIREZ Directional set up selection C3 MOD 67N i OFF EARTH1 EARTH2 Farhat fun tion solup SET UP NOMINAL _ Nominal data VALUES Fig 4 THRESHOL THRESHOLD set up SET UP Fig 4 5 RELAYS OUTPUT RELYS set up FUNCTION Fig 5 DIGITAL DIGITAL INPUTS set up INPUT Fig 6 SPECIAL SPECIAL FUNCTION set up FUNCTION Fig 6 J1 CONFIRM PROG MEASURES SIGNALS Display of SIGNALS and OUTPUT RELAY status amp EVENTS STATUS Fi
69. the threshold trip El RELAY E3 RELAY 1 3 4 1 4 When no output relays have been activated no relays programmed to TRIP on the threshold the following message will be displayed El RELAY NONE El T Tot WWW WW S It is shown the total delay to the TRIP of the output relays from the overcurrent detection when additional delays are activated the change of the status of the digital input that controls the additional delay during the delay itself could bring to a total time different from the sum of the programmed delays If the total time is greater than 999 seconds the display of tenths is omitted Examples Q7 TOTAL TIME DELAY ON TRIP 52 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING When the event is memorized on the external command STATUS the message N A Not Applicable is shown instead of the number of seconds El T Tot N A Q8 DIGITAL CHANNELS RELATED TO MEMORIZED EVENT El DIG dij Age 6 The list of the digital inputs related to the memorized event is displayed STATUS function command or additional time TA enabled ref par 5 8 If no digital inputs were activated the message NONE is displayed Q9 Q20 MEMORIZED MEASURES ON EVENT The values of the measures at the event are displayed currents or impedances voltages and angles between each current and the related voltage the values are expressed as relative terms In lon Zn Un Uon Examples Q9 Q14 Q20 11
70. threshold operates The time delay is programmable from 00 02 to 99 99 s E4V ADDITIONAL TIME DELAY SET UP programmable TA Uo gt gt XX XX S The additional time delay TA is programmable from 00 00 to 99 99 seconds please note that at least one of the digital inputs should be programmed to activate time delay function ref G1 G6 paragraph 5 8 The additional time delay TA is added to the time delay TI to obtain the output relay trip when the TI TA time expires The additional time delay TA will be added if the time delay TI is programmed at least equals to 50 ms digital input acquisition time 40 ms E5V DIGITAL INPUT ACTIVE ON THRESHOLD not programmable TA Uo gt gt eeeeeee It shows the digital input programmed to activate the additional time delay TA on the displayed threshold 43 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING The parameter eeeeeeee can show one of the following values DISABLED none of the digital inputs has been programmed to activate an additional time delay related to the threshold Uo gt gt DIG1 digital input DIG1 activates the TA delay on threshold Uo DIG2 digital input 0122 activates the TA delay on threshold Uo DIG3 digital input DIG3 activates the TA delay on threshold Uo DIG4 digital input DIG4 activates the TA delay on threshold Uo gt gt DIG5 digital input DIG5 activates the TA delay on threshold Uo gt gt DIGG digital input 0106 activates the TA de
71. to reclosing function trips one of the output relays must be programmed on the auto reclosing function ref F12 paragraph 5 7 It is possible to program the first reclosure RR on the first TRIP condition and from 0 to 4 additional reclosures RL on the following trips During the reclosing operations the condition is showed on the display The programmable parameters are showed in the table below 11 SEB Divisione Elettronica e Sistemi GENERAL CHARACTERISTICS Parameters Setting Resolution N of additional reclosures ME except first Dead time 2 3 4 5 0 1 200 05 Reclaim time 2 3 4 5 0 1 200 05 Lockout time inhibition of further reclosures 0 0 200 0 s 0 15 The lockout time TD is activated at the same time with the dead time TN2 and if a trip of a protection threshold occurs during the lockout time the auto reclosing function will be inhibited reclosing function FAIL The lockout time TD must be shorter than the programmed TN2 time this constraint is verified by the protection relay during the set up and an error message will be displayed if required The reclosing function will be also inhibited if one of the protection function operates TRIP during the last programmed reclosing operation during TN1 if NRL 0 or during TN2 if NRL 2 1 The output relay programmed on the auto reclosing function ref F12 paragraph 5 7 will be activated for 100 ms The auto reclosing fun
72. values DISABLED none of the digital inputs has been programmed to activate an additional time delay related to the threshold Z1 DIG1 digital input DIG1 activates the TA delay on threshold Z1 DIG2 digital input DIG2 activates the TA delay on threshold Z1 DIG3 digital input DIG3 activates the TA delay on threshold Z1 DIG4 digital input DIG4 activates the TA delay on threshold Z1 DIG5 digital input DIG5 activates the TA delay on threshold Z1 DIG6 digital input DIGG activates the TA delay on threshold Z1 More than one digital input can activate the same additional time delay e g DIG 1 3 Please note that to activate the additional time delay at least one of the digital inputs should be programmed ref G1 G6 paragraph 5 8 5 6 3 ANSI 67N thresholds programming fig 4 and fig 5 The information and set ups related to threshold NS1 in the following points are effective for the thresholds NS2 and NS3 if not specifically written just taking into consideration the change of the threshold identification The available settings for each threshold are listed in Table A E1N ON OFF THRESHOLD programmable ANSI 67 51 ccc ccc ON enabled threshold OFF disabled threshold available but not active E2N CURRENT THRESHOLD LEVEL SET UP programmable Tol gt Ion n nnn n nnn threshold level referred to the current nominal value lon Iol gt Ion 2 gt Ion To3 gt Ion 0 850 2 000 3 500 E3N OVERVOLTAGE THRESHOLD
73. wing 1 SELECT the visualization on display of the parameter to be modified using the arrow push buttons 2 ACTIVATE the PARAMETER MODIFICATION session depressing the ENTER push button and modify the parameter value 3 END the parameter modification session depressing again the ENTER push button 4 REPEAT the procedure from 1 to 3 for all the parameters required to obtain the new protection relay set up 5 CONFIRM the new protection relay set up at the visualization CONFIRM PROG Fig 3 ref J1 within 5 minutes depressing the push buttons ENTER and up to visualize YES and ENTER again to confirm NOTE The protection relay continues to operate using the previous set up until the new set up is confirmed as at point 5 above the visualization of the modified parameters before the new set up confirmation is only temporary to allow an easy definition of the new protection set up 16 SEB Divisione Elettronica e Sistemi PROGRAMMING AND TEST If the new set up is not confirmed within 5 minutes from the last pressed push button the protection relay visualizes again the previous set up the parameters set up that the protection relay is still using 4 2 modify a visualized parameter When the parameter to be modified is visualized on front panel display do the following sequence 1 PRESS ENTER to activate the parameter modification session If one or more parameters are modifiable on the first of them w

USER MANUAL - seb barlassina

Contents

Download Pdf Manuals

Related Search

Related Contents