USER MANUAL - seb barlassina
Contents
1. Meiste esse 17 D4 Function selection i S eode ode eno ect eco e blouse 18 55 Nominal values set up fig 4 2 od ea ooo ae Ae oio eoo 18 5 6 Thresholds and time delays set up fig 4 esee 19 5 6 1 1 52 and S3 thresholds programming fig 4 20 5 6 2 SA threshold programming fig 4 23 5 7 X Output relays programming fig 4 2 25 5 8 Digital inputs function programming fig 4 see 26 5 9 Special function voltage memory function fig 4 27 5 10 Parameter values visualization fig 5 eese 27 AB CLS DRE 28 5 12 TRIPS COUNTERS fig B loa retener tede aeree 31 Di ANSTALLATON tea teet e tex tone deed cot 32 uppliBd dp anto alti ii dg 32 G2 vOaSblIng eoe entes act ci eo e tL LO lia 33 6 3 Relays R3 and R4 Signaling Command 37 6 4 RS485 serial communication rnrn nrerenn 37 7 TIME DEPENDENT CURVES nt pte todo Coe pat si 39 8 TECHNICAE CHARAC TERIS TIGOS aec oeil eed dan eas cid ue sapi pue ppl Dre sed eeu ues 40 9r TABLES cte cate ete etudes te tut deo te a Le ete 42 Information printed in this manual subject to change without prior notice This manual must not be rep2. E4 ANGOLAR SECTOR THRESHOLD SET UP programmable 1 nnn D D1 nnn nnn threshold parameters expressed in degree ref paragraph 1 1 DI characteristic angle programmable from 180 to 180 Do1 sector width programmable from 015 to 180 Please use the right arrow push button to select the sign or the digit to be modified and the down arrow push button to select the parameter to be modified DI 030 o2 090 000 1 090 D 2 075 D 3 180 NOTE When a sector width D 1 is defined equal to 180 the related threshold 1 lt becomes NON directional and it will be sensible only to the earth current threshold the overvoltage threshold Us1 gt will be indifferent as ANSI 51N Examples E5 TIME DELAY SET UP programmabile TI eeeee XX XX S Set up of the time delay to the activation TRIP of the programmed output relays when the S1 directional threshold operates Parameter TI 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
3. The insertion diagram is presented in figure 7 the IAD3N relay is a single phase relay therefore it can be used in system assumed to be balanced generators The current and the voltage must be applied as following cross polarization Current Ir Voltage U s t Current Is Voltage U t r Current It Voltage U r s The following characteristic angles are suggested as presented in figure 8 Directional active power 90 Directional reactive power 0 With these angles set up the IAD3N relay will operate when the active or reactive power is negative It is available a 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 Us1 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 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 gt right arrow down arrow programming session activation or parameter confirmation change or increment of the selected parameter RESET VISUALIZATION
4. 51 51 Gece T 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 S1 S2 S3 and SA only the counter related to the active thresholds are shown see selections to ref C1 R9 R11 TOTAL PROGRAMMING SESSIONS AND DATE TIME OF THE LAST PROGRAMMING SESSION TOT 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 31 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 IAD8N with rear socket e transparent front panel for rack installation e blister with items 1 2 3 4 5 CS VERSION flush mounting installation e protection relay module IADSN with rear socket e transparent front panel for rack flush mounting installation e n 2 brackets for flush mounting e blister with items 1 2 3 4 5 e blister with item 6 Sacchetto BL
5. Sed DIVISIONE ELETTRONICA E SISTEMI IAD3N DIGITAL DIRECTIONAL EARTH FAULT OR DIRECTIONAL POWER RELAY USER MANUAL P500D806 October 2007 SEB Divisione Elettronica e Sistemi INDEX INDEX 1 GENERAL CHARACTERISTICS saran cement datant iren 1 11 arectonal thresholds in edet ette eth lp SLI 3 1 2 Directional earth fault 3 independent thresholds nnna 5 1 3 Directional earth fault with non operating zone around the origin 5 1 4 Directional earth fault characteristic 9 6 1 5 Directional overcurrent or power detection ANSI 67 32 7 2 J RRONT PANEL KEYS eint tertie tcu ditior dud iedtutt rdc ez 8 3 FRONT PANEL LED SIGNALING 0 cu meio test nna oe i Qu cited dade eden ie muda 9 A PROGRAMMING AND TES 5221 einen ona tado 10 4 1 Howto program the protection relay eren etn 10 4 2 How to modify a visualized 11 AS 1 RESET E 11 44 TOSCORQUIPUDPe Ryan 12 5x IBISPEAY AND PROGRAMMING und 13 5 1 Standard eL LLL eL 13 Be MisHaliZauemnsiiellle nuno ot tUe ha 14 5 9 Address and tme fig 3 role
6. the first threshold 81 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 Tl The additional time delay activation is controlled by the digital inputs to allow the use of the IAD3N relay with cooperating protection relays The available settings for each time delay are listed in Table A OUTPUT RELAYS the IAD3N 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 SEB Divisione Elettronica e Sistemi GENERAL CHARACTERISTICS START instantaneous activation of the output relay when electrical parameters exceed the programmed threshold values TRIP activation of the output relay when the programmed time delay or TI TA related to a threshold expires 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 DIGITAL INPUTS there are available 3 digital inputs to activate the following functions when enabled by the programmed set up e additiona
7. INDIP 01 50 s E8 ADDITIONAL TIME DELAY SET UP programmable TA SA 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 the time delay function ref G1 G2 G3 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 is programmed at least equals to 50 ms digital input acquisition time 40 ms E9 DIGITAL INPUT ACTIVE ON THRESHOLD non programmable TA SA XX XX S 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 24 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING DISABLED none of the digital inputs has been programmed to activate an additional time delay related to the threshold SA DIG1 digital input DIG1 activates the TA delay on threshold SA DIG2 digital input DIG2 activates the TA delay on threshold SA DIG3 digital input DIG3 activates the TA delay on threshold SA 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 G2 G3 paragraph 5 8 5 7 Output relays programm
8. O 1 4 W 38 SEB Divisione Elettronica e Sistemi TIME DEPENDENT CURVES 7 TIME DEPENDENT CURVES Curva Curve A Curva Curve B 1000 1000 20 15 t SECONDI t SECONDI 01 K 001 N OO n wo amp tT wu amp VIR Curva Curve 1000 Time dependent characteristic Ki K 2 0 02s 10 1 1 gt Curve IEC 255 4 A B C Ki 0 44 13 5 80 0 02 1 2 n K Parameter 0 01 20 00 s Ratio between the measured current sa and the threshold ls1 gt K 0 08 39 SEB Divisione Elettronica e Sistemi TECHNICAL CHARACTERISTICS 8 TECHNICAL CHARACTERISTICS Measuring inputs Rated phase current In Thermal withstand continuously Thermal withstand for 1 s Rated voltage Un 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
9. OF PARAMETERS reset of the protection relay ref 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 and 5 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 SEB Divisione Elettronica e Sistemi FRONT PANEL LED SIGNALING 3 FRONT PANEL LED SIGNALING POWER 46 auxiliary supply available green FAIL amp fault condition detected by SELF DIAGNOSIS software or by red PILOT WIRE FAULT MONITORING function REMOTE communication session active on RS485 port red S1 SA trip condition on S1 or SA thresholds red S2 SA trip condition on S2 or SA thresholds red 53 amp trip condition on S3 threshold red 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 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 PARAM
10. Q3 Q4 Q5 El 1 gt El UA1 El 2 gt El UA2 gt y yyy In y yyy Un y yyy In y yyy Un Q6 Q7 El DA El DDA 090 45 Q8 ACTIVATED OUTPUT RELAYS El RELAY nnnnnnn It shows the list of the output relay activated by the threshold trip El RELAY E3 RELAY Lo 1A When no output relays have been activated no relays programmed to TRIP on the threshold the following message will be displayed El RELAY NONE Examples 29 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING Q9 TOTAL TIME DELAY ON TRIP 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 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 Q10 DIGITAL CHANNELS RELATED TO MEMORIZED EVENT El DIG due 33 The list of the digital inputs related to the memorized event is displayed STATUS function command or additional time TA enabled ref par 5 6 If no digital inputs were activated the message NONE is displayed Q11 Q12 Q13 MEMORIZED MEASURES ON EVENT The values of the measur
11. S3 disabled 26 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING OF SA threshold SA disabled OF ALL all thresholds disabled STATUS activation of status function see paragraph 1 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 DIGITAL INPUT DIG3 SET UP programmable DIG3 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 4 When the relay is working as directional power relay ANSI 67 32 function MAX 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 Us1 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 MEMORIA TENS cc cc ON enabled function OFF disabled function 5 10 Parameter v
12. Un programmed from 110 to 400 V terminals 12 13 voltages with Un programmed from 0 to 100 V Other circuits output relays etc It is suggested to terminate the wiring using plug terminals Minimum suggested wire cross section 1 5 mm 33 SEB Divisione Elettronica e Sistemi INSTALLATION CARICO PLANT 11 0 380V 12 0 100V 142 gt I ux a PE m af a A2 In 5A R2 PAD B2 In 1A 02 In 1 In 5A B1 In 1A O 9 Zr ED na ps da db DIG 1 R4 LINEA LINE 7 T M hE Uaux Colo oS lt Holmgreen L LINE L 20 gt 8 225 9 Figure 6 Directional earth fault insertion Sa TEST Meg in P1 P2 34 SEB Divisione Elettronica e Sistemi INSTALLATION lt N Gi J gt ui t Figure 7 Lu 96 Sj e gt W ojo UR IR Figura 8 UT US UST Directional power insertion 35 SEB Divisione Elettronica e Sistemi INSTALLATION 172 9 IITT III CJ Dimensioni meccaniche Case outlines N 4 fori 84 6 Dima montaggio da incasso Flush mounting panel cut out Montaggio incassato Flush mounting Dimensioni pannello frontale trasparente Transparent front panel sizes 208 x 89 5 mm 36 SEB Divisione Elettronica e Sistemi INSTALLATION 6 3 Relays R3 and R4 Signaling Command set up The protection relay is supplied wi
13. nominal voltage selection nominal secondary voltage of plant VT selectable between the followings 57 73 63 50 72 16 100 110 125 190 220 230 380 400 PRIMARY CT s CURRENT programmable I prim XXXXX prim primary phase current value of the installed CT it is programmable from 0001 to 18500 A D4 PRIMARY VT s VOLTAGE programmable V prim XXXXXX V V prim primary voltage value of the installed VT it is programmable from 000001 to 999999 V D5 STANDARD DISPLAY SELECTION programmable DISPLAY It allows to select the standard displayed information ref 1 when no trip condition occurs and no fault condition has been detected by the self diagnosis module the available selections are the following ANSI ANSI code of the available functions CURRENT Measured current VOLTAGE Measured voltage ANGLE Measured angle between voltage and current Examples DISPLAY DISPLAY DISPLAY ANSI CURRENT ANGLE D6 DISPLAY CONTRAST LEVEL programmable CONTRAST LEV x The display contrast level is programmable from 0 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 5 6 Thresholds and time delays set up fig 4 Only the thresholds enabled at the FUNCTION SELECTION ref C1 are presented Selection MAX I thresholds S1 S2 S3 19 SEB Divisione
14. 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 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 11 SEB Divisione Elettronica e Sistemi PROGRAMMING AND TEST 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 4 ref F6 it is possible to command 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 or RESET push button is pressed e the ENTER push button is pressed and the sequence at points 3 and 4 is repeated presenting OFF condition The same procedure will be used for R2 R3 and R4 relays 12 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING 5 DISPLAY AND PR
15. the new protection set up 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 10 SEB Divisione Elettronica e Sistemi PROGRAMMING AND TEST 4 2 to 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 will 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 gt 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
16. 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 3125 15 21 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING NOTE the index K or s is shown coherently to the selected time delay characteristic when the push button ENTER is pressed E6 ADDITIONAL TIME DELAY SET UP programmabile The selection is displayed only when a TIME DEFINITE characteristic has been selected TI INDIP at ref E5 when TIME DEPENDENT characteristic has been programmed the selection will not be displayed TA 81 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 the time delay function ref G1 G3 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 is programmed at least equals to 50 ms digital input acquisition time 40 ms E7 DIGITAL INPUT ACTIVE ON THRESHOLD non programmable TA S1 It shows the digital input programmed to activate the additional time delay TA the displayed threshold The parameter eeeeeeee can show one of the following values DISABLED none of the digital inputs ha
17. DDRESS 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 B6 SOFTWARE REVISION LEVEL not programmable SW REV ZZ ZZ 17 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING 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 function selection defines the available thresholds FUNCTION ANSI SELECTIONS THRESHOLDS Directional earth fault with 3 67N EARTH 1 S1 S2 53 independent thresholds Directional earth fault with NON EARTH 2 SA S3 operating zone Directional power relay 67 32 MAX I 51 52 53 Examples FUNCTION FUNCTION FUNCTION MAX I EARTH 1 EARTH 2 5 5 Nominal values set up fig 4 D1 NOMINAL CURRENT SELECTION In programmable In xA In nominal phase current programmable 1 A or 5 A D2 NOMINAL VOLTAGE SELECTION Un programmable Un XXX XX V 18 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING Un
18. ETER All parameters can be freely modified the proper protection set up as required by the plant management is submitted to the operator s judgment 4 1 Howto program the protection relay The programmable parameters are showed in Figures 3 4 and 5 at the following references B2 B7 relay address RS485 and date time C1 protection function D1 D6 nominal values contrast etc E1 E9 thresholds and time delays F1 F6 output relays functions G1 G3 digital input functions H1 voltage memory R1 R11 partial trip counters reset The programming sequence is the following 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 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
19. Elettronica e Sistemi DISPLAY AND PROGRAMMING Selection EARTH 1 thresholds S1 S2 S3 Selection EARTH 2 thresholds SA S3 5 6 1 51 52 and S3 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 E1 ON OFF THRESHOLD programmabile 51 ccc ccc ON enabled threshold OFF disabled threshold available but not active E2 CURRENT THRESHOLD LEVEL SET UP programmable Isl nn nn In Threshold level referred to the current nominal value In nn nn directional power relay ANSI 67 32 n nnn directional earth fault ANSI 67N Examples Isl Is2 Is3 01 50 In 02 00 In 0 500 In E3 VOLTAGE THRESHOLD LEVEL SET UP programmable Usl n nnn Un n nnn threshold level referred to the voltage nominal value Un Usl gt Us2 gt Us3 gt 0 050 Un 0 200 Un 1 000 Un When the measured voltage is lower than the threshold the voltage memory function if enabled will be activated see par 1 and par 5 9 Examples NOTE when selected the MAX function ref function selection C1 the voltage thresholds Us2 gt and Us3 gt are equal to the programmed value Us1 gt and they are not programmable 20 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING
20. ISTER 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 two brackets for flush mounting and 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 current wire terminals 5 n 8 growers to be used to fix current wire terminals 6 items to fix the brackets for flush mounting only with CS version 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 32 SEB Divisione Elettronica e Sistemi INSTALLATION 6 2 Cabling Current circuits It is suggested to terminate the current wirings using eyelet terminals Minimum suggested wire cross section 2 5 mm With reference to the insertion diagram in the next page the currents measured by the protection relay have the following matching programmed nominal current In 2 5A terminals A1 A2 programmed nominal current In 2 1A terminals B1 B2 Voltage circuits It is suggested to terminate the voltage wirings using plug terminals Minimum suggested wire cross section 1 5 mm With reference to the insertion diagram in the next page the voltages measured by the protection relay have the following matching U terminals 11 13 voltages with
21. Number of inputs External control voltage Typical current sink Data transmission Standard Communication protocol Transmission speed Optional Auxiliary supply Range 1Aor5A 4 In 100 In 57 73 63 50 72 16 100 110 V 125 190 220 230 380 400V 2 Un 2Un 50 60 Hz 1 18500 A 1 999999 V 4 1 5 250 V change over 0 5A 0 2 A gt 106 3 as Uaux 2 RS 485 half duplex MOD BUS ASCII 300 9600 baud selectable fibre optic module 24 320 Vdc 20 48 230 Vac 20 Frequency Vac 47 63 Hz Burdens min max 5 10 W Environmental conditions Operation 10 60 C Transport and storage 25 1 80 C Relative humidity without condensation lt 95 Protection degree for flush mounting IP 52 optional IP 54 Weight 2 5 kg 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 SEB Divisione Elettronica e Sistemi TECHNICAL CHARACTERISTICS Note 3 The output contacts of R3 and R4 relays can be configured as signaling or tripping relays 41 SEB Divisione Elettronica e Sistemi TABLES 9 TABLES Table A THRESHOLDS Settin Us d Resolution Characteristic angle Thresholds and time delays DIRECTIONAL EARTH FAULT ANSI 67N ON OFF 0 005 9 999 In 0 01 In 0 004 1 200 Un 0 001 Un 180 180 Setting Resolution Setting Resolution DIRECTIONAL PO
22. OGRAMMING The contents and the structure of the displayed messages are shown in figures 3 4 and 5 the references A1 B1 B2 etc identify specific displayed messages in the figures 5 1 Standard display 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 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 angle 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 51 52 53 SA 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 FAULT CONDITION When a permanent or temporary fault condition is detected by the self diagnosis module the fol
23. REMOTE glows the operator on front panel can view the relay set up but changes of parameters are disabled ENTER and buttons disabled VOLTAGE MEMORY FUNCTION when the relay is working as directional power relay ANSI 67 32 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 Us 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 1 1 Directional thresholds The IAD3N protection relay measures a voltage a current and computes the phase angle between the voltage reference Vo or V23 and the current lo or 11 The nominal current and voltage are programmable two current inputs are available 1 A and 5 A to match the nominal current of plant CT SEB Divisione Elettronica e Sistemi GENERAL CHARACTERISTICS Three independent directional thresholds S1 S2 and S3 are available each threshold is defined by the following parameters Isx gt overcurrent threshold Usx gt overvoltage threshold 5 lt angular sector threshold ANGULAR SECTOR THRESHOLD the threshold is defined by the following paramete
24. WER RELAY ANSI 67 32 ON OFF 0 01 30 00 In 0 01 In 0 004 1 200 Un 0 001 Un 180 180 Setting 15 180 15 180 Resolution Time Delays ira Setting 0 02 99 99 s 0 02 99 99 s Definite Time Resolution 0 015 0 01 s Dependent time Additional delay Drop off ratio Is Us Characteristic curves IEC 255 4 Characteristic constant Resolution A B C 0 01 20 00 s 0 01 s 0 00 99 99 s gt 0 95 Hysteresis of directional detection Overshoot time Output relays R1 R2 R3 R4 0 01 20 005 0 01 s 0 00 99 99 s lt 30 ms 42 Programmable for each threshold START TRIP and normally ON OFF 43 44 SEB DIVISIONE ELETTRONICA E SISTEMI UFFICIO COMMERCIALE Via Segantini 5 20825 BARLASSINA MB tel 39 0362 5669 1 fax 39 0362 556622 web site www seb barlassina it mail to servizio clienti seb barlassina it
25. alues visualization fig 5 L1 L4 THRESHOLDS STATUS The actual status of each threshold is displayed only the thresholds actionable as function of the FUNCTION SELECTION are presented For each threshold are displayed the threshold identification 81 SA etc and the threshold status the status can show one of the following values ON active threshold OFF disabled threshold programmed OFF at ref E1 see par 5 6 27 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING OFF_DIG threshold programmed active but disabled by a digital input actual status ref G1 G3 see par 5 8 S1 52 SA ON ON OFF M1 M2 OUTPUT RELAY STATUS Examples The actual status of each output relay is displayed for each relay the following information is displayed e relay identification R1 R2 R4 e relay status ON activated OFF non activated Note that ON OFF do not necessary mean energized or de energized see ref G1 1 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 0161 DIG2 DIG3 e digital input status HI or LO P1 P2 P3 MEASUREMENT DISPLAY The actual values of the measures and of the computed parameters are displayed currents voltages phase angles the parameters related to disabled thresholds are not displayed For each measure the following informat
26. ctional and the voltage threshold is indifferent only the modules of the measured currents 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 SEB Divisione Elettronica e Sistemi GENERAL CHARACTERISTICS Every threshold can be programmed ON OFF or disabled with an external command through digital inputs 1 2 Directional earth fault 3 independent thresholds The 3 independent directional earth fault thresholds are defined by the followings threshold S1 Is1 gt Us1 gt 51 lt parameters D 1 and D1 threshold S2 152 gt Us2 gt 52 lt parameters D 2 and 92 threshold S3 Is3 Us3 gt s3 lt parameters D 3 and 93 Each current threshold Isx gt voltage threshold Usx gt and each angular sector characteristic angle x and sector width D x is independently programmable 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 Usx gt and if the current phasor is in the angular sector sx lt defined as Dx with the measured voltage as reference The available setti
27. ctional earth fault characteristic angles When it operates as directional earth fault the following characteristic angles Sx where x 1 2 3 A are suggested e unearthed 90 e solidly earthed 75 e via earthing resistor 180 e via earthing transformer 90 e via Petersen coil 180 6 SEB Divisione Elettronica e Sistemi GENERAL CHARACTERISTICS The suggested sector width D x in the first 4 cases is 85 With unearthed systems the threshold S3 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 5 Directional overcurrent or power detection ANSI 67 32 There are available 3 directional overcurrent independent thresholds defined by the following current and voltage thresholds and angular threshold parameters threshold 1 151 gt Us1 gt s1 lt parameter D 1 and o1 threshold S2 152 gt Us2 gt 52 lt parameter D 2 and 2 threshold S3 Is3 gt Us3 gt s3 lt parameter D 3 and Each current threshold Isx and each angular sector characteristic angle x and sector width D x is independently programmable the voltage thresholds Us2 and Us3 gt are equal to Us1 gt The threshold S1 can be programmed as definite time or dependent time whilst the remaining thresholds are time definite only see curves paragraph 7
28. e 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 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 digital 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
29. es at the event are displayed current voltage and angle between the current and the voltage the values are expressed as relative terms In and Un Examples Q11 Q12 Q13 E3 I E3 U E3 ANG n nnn In n nnn Un nnn Q14 Q15 Q16 DIGITAL INPUTS STATUS ON EVENT E El El DIGI vv IG2 vv DIG3 vv Jg The status of the digital inputs at the event are displayed The parameter vv can assume the value HI or LO Q17 Q18 DATE AND TIME OF THE EVENT El Date El Time dd mm yy hh mm ss The date and time of the event are showed 30 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING 5 12 TRIPS COUNTERS fig 5 In this section are displayed the total and partial 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 R8 TRIP COUNTERS
30. g 4 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 1 STATUS function recording of measures on external command d pilot wire fault monitoring only DIG2 monitors DIG1 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 b the ALL selection ALL the thresholds has the priority on single threshold selection G1 DIGITAL INPUT DIG1 SET UP programmabile cc XXXXXXXX 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 NONE no functions active related to digital input DIG1 TA S1 additional time delay on the threshold S1 TA S2 additional time delay on the threshold S2 TA S3 additional time delay on the threshold S3 TA SA additional time delay on the threshold SA TA ALL additional time delay on all thresholds OF 51 threshold S1 disabled OF S2 threshold S2 disabled OF S3 threshold
31. ing fig 4 The session allows to program the activation of the output relays R1 R2 R3 or R4 on START or TRIP conditions for each threshold 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 activated NORM OFF normally de energized energized status on activation NORM ON normally energized de energized status on activation F2 OUTPUT RELAY ACTIVATION ON THRESHOLD 1 programmable R1 51 The parameter xxxxxxxx is selectable as the following START instantaneous output relay R1 activation when the threshold operates TRIP output relay R1 activation when the threshold is operating for at least Tl or TI TA seconds NONE no activation related to threshold F5 OUTPUT RELAYS ACTIVATION ON THRESHOLDS S2 SA and S3 programmable Examples R1 52 R1 SA R1 53 XXXXXXXX XXXXXXXX XXXXXXXX 25 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING Output relays activation on START or TRIP conditions related to S2 SA and S3 thresholds as threshold S1 ref F2 F6 TEST OF OUTPUT RELAYS R1 TEST R1 XXXXXXXX See paragraph 4 4 5 8 Digital inputs function programming fi
32. ion is displayed measure identification I V ANGLE actual values expressed as Amperes Volts and degrees 5 11 Events fig 5 On the display are shown the memorized information related to the last 8 TRIP or STATUS events The 8 events are recorded and identified with a progressive number from 1 to 8 the more recent event shows a lower number Q1 EVENT NUMBER El cccccccc The index E1 E2 E8 identifies the memorized event 28 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING The parameter cccccccc gives information on the kind of event and it can show one of the following values NONE no event memorized S1 event on trip threshold S1 S2 event on trip threshold S2 S3 event on trip threshold 53 SA event on trip threshold SA STATUS information recorded on external command POWER ON switch on of the protection relay auxiliary power For the events NONE and POWER ON no other information is presented for the other events the following displays give more detailed information on the event Q2 Q7 PARAMETERS RELATED TO THE 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 Q4 current thresholds Q4 showed only for threshold SA Q3 Q5 voltage thresholds Q5 showed only for threshold SA Q6 characteristic angle OX where X 1 2 3 A Q7 sector width D X where X 1 2 3 A Q2
33. l time delay related to one or more thresholds e on off thresholds e STATUS function recording of measures on external event e pilot wire fault monitoring only DIG2 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 all the measured and computed parameters can be transmitted to an external controller through the RS485 port EVENTS information related to the last 8 events TRIP or STATUS are recorded in the EEPROM memory Information includes the threshold set up and activated relays TRIP event only the measured current voltage phase 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 a red LED on front panel 2 SEB Divisione Elettronica e Sistemi GENERAL CHARACTERISTICS e R5 output relay drop off The fault condition signaling stays until faults are pointed out by the monitoring module during this condition the protection functions ar
34. lowing message will be displayed FAIL F PILOT Detected 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 13 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING 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 5 2 Visualization structure A1 ANSI ALTERNATIVE FAIL TRIP V ANGLE XX XXX DISPLAYS 51 nnn B1 B2 B3 B4 B5 B6 B7 UARAN PROTOCOL BAUDRATE NR RELAY SER NR VERS SW dd mm yy mod T4 YYYYYYYY nnnn XXX ZZZZZZZ7Z 22 22 hh mm ss C1 FUNCTION Function selection aaaaaaaa MAX I EARTH 1 EARTH 2 SET UP NOMINAL Nominal data VALUES FIG 4 THRESHOL THRESHOLDS set up SET UP FIG 4 RELAYS OUTPUT RELAYS set up FUNCTION FIG 4 DIGITAL DIGITAL INPUTS set up INPUT FIG 4 SPECIAL SPECIAL FUNCTION set up FUNCTION FIG 4 J1 CONFIRM PROG MEASURES SIGNAL Display of SIGNALS and OUTPUT RELAYS status amp EVENTS STATUS FIG 5 EVENTS Display of EVENTS data FIG 5 COUNTERS Display of COUNTERS da
35. ngs for each time delay are listed in Table A 1 3 Directional earth fault with non operating zone around the origin The thresholds S1 and S2 current thresholds 151 gt and 152 gt and voltage thresholds Us1 gt and Us2 gt are logically combined OR to obtain the threshold SA and they allow you to have an operating voltage current characteristic as showed in figure 1 for any angular sector lt this characteristic allows very low voltage and current thresholds with a NON operating zone around the origin the threshold S3 remains independent The threshold SA has only one angular sector threshold lt defined by the parameters and That is SA logical OR threshold S1 Is1 gt Us1 gt threshold S2 152 gt Us2 gt angular sector threshold DA lt DA DPA The constraints on the current and voltage thresholds are the followings Isi x Is2 gt Us1 gt gt Us2 gt These constraints are verified by the protection relay during the set up and an error message will be displayed if required The S3 threshold operates normally with the parameters Is3 gt Us3 gt and s3 lt SEB Divisione Elettronica e Sistemi GENERAL CHARACTERISTICS Uo d operating area zona intervento Usi 4 NON operating area zona NON intervento Us2 151 gt Is2 gt Figure 1 gt NON operating area zona NON intervento X gt operating area zona intervento Figure 2 1 4 Dire
36. nnn Un D 3 nnn XX XX S XX XX S eeeeeeee 1 2 F4 F5 F6 RELAYS R1 R1 S Rl S2 Rl SA R1 3S3 TEST R1 FUNCTION ORM ccc XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX R2 R2 S R2 S2 R2 SA R2 S3 TEST R2 ORM ccc XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX R3 R3 S R3 S2 R3 SA R3 53 TEST R3 ORM ccc XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX YYYYYYYY R4 RA 5 RA 52 RA SA RA 53 TEST R4 ORM ccc XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX present only with present only with always present I MAX amp EARTH 1 EARTH2 selected G1 G2 G3 DIGITAL DIG1 cc DIG2 cc DIG3 cc INPUT XXXXXXXX XXXXXXXX XXXXXXXX m H1 SPECIAL MEMORIA FUNCTION TENS I 41 CONFIRM PROG To FIGURE 5 Figure 4 15 DISPLAY AND PROGRAMMING SEB Divisione Elettronica e Sistemi G ss ww yy AA ww pp 2220 2999 1 0999 d 2999 L 0999 d 2999 1 0999 d 2999 1 0999 Sud ANIL Dd ALYA LOL XS XS ES s cs cs IS TS SUALNONOO LLY Old 6 8H ZH 9 SY ve M LU 8a SS u
37. roduced 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 IAD3N is designed to perform one of the following functions Directional earth fault 67N lo Vo Directional overcurrent and directional power 67 32 11 V23 detection active or reactive The IAD3N relay as directional earth fault relay is used in electrical systems with unearthed neutral neutral solidly earthed neutral earthed through a resistor neutral earthed through 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 IAD3N relay manages up to 3 independent directional thresholds 51 52 and 53 each threshold is defined by the following programmable information e current threshold Is e voltage threshold Us e characteristic angle and sector width The directional earth fault function can be selected as e 3 INDEPEDENT DIRECTIONAL thresholds e DIRECTIONAL with NON operating zone around the origin see fig 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 TI is available for each threshold
38. rs Dx characteristic angle e g 41 related to directional threshold S1 sector width e g D 1 related to directional threshold 51 Characteristic angle The characteristic angle is defined with the measured voltage as reference straight line C in figure 2 The characteristic angle can be programmed from 180 to 180 and it is shown using the notation Dx The angle cx of the sector axis is positive when lagging the voltage vector see figure 2 Sector width the sector width is symmetrically defined referred to the straight line C The sector width can be programmed from 15 to 180 and it is shown using the notation Dx DIRECTIONAL THRESHOLD OPERATION The directional threshold S1 operates when the following conditions are verified e the measured current is greater than the threshold Is1 gt e the measured voltage is greater than the threshold Us1 gt e the measured current phasor is within the sector defined by the parameter 1 and Do1 therefore if the following characteristic angle is programmed o1 90 Do1 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 Isx gt Usx gt and of the parameters x and D x please refer to Table A NON DIRECTIONAL THRESHOLDS When the sector width D x is defined equal to 180 the threshold becomes non dire
39. s 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 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 G3 paragraph 5 8 22 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING 5 6 2 SA threshold programming fig 4 E1 ON OFF THRESHOLD programmable SA GGG ccc ON enabled threshold OFF disabled threshold available but not active E2 E3 CURRENT THRESHOLDS SET UP programmable E2 E3 IA1 gt TA2 gt n nnn In n nnn In n nnn threshold level referred to the current nominal value In 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 if the condition is not verified an error message will be displayed Examples E4 E5 OVERVOLTAGE THRESHOLDS LEVEL SET UP programmable E4 E5 1 gt UA2 gt n nnn Un n nnn Un n nnn threshold level referred to the voltage nominal
40. ta FIG 5 Figure 3 14 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING From FIGURE 3 DI D2 D3 D4 D5 D6 SET UP NOMINAL In j A Un I prim V prim DISPLAY CONTRAST VALUES XXX XX V yyyyy A XXXXXX V LEV n S1 and S2 thresholds are present only when MAX or EARTH 1 function is selected 1 2 4 5 E6 E7 THRESHOL SL cece Isl Usl 1 nnn TI eeeee TA S1 TA 51 SET UP nn nn In n nnn Un Dol nnn XX XX S XX XX S eeeeeeee S2 ccc Is2 gt Us2 gt 2 nnn TI eeeee TA 52 TA 52 nn nn In n nnn Un 2 nnn XX XX S XX XX S eeeeeeee SA threshold is present only when EARTH2 function is selected E1 E2 E3 E4 ES E6 E7 SA ccc 1 gt IA2 gt 1 gt UA2 A nnn TI eeeee nn nn In nn nn In n nnn Un n nnn Un DA nnn xtc Se p E9 E8 TA SA TA SA eeeeeeee XX XX S S3 threshold always present 53 ced Is3 0835 3 nnn TI eeeee TA 53 TA 53 nn nn In n
41. th R3 and R4 relays configured as SIGNALING RELAYS with 2 change over output contacts with breaking capability equals to 0 2 A at 110 Vdc 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 PQRAN 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 paragraph 5 3 When the MODBUS communication protocol is selected the transmission speed can be programmed between 300 to 9600 bauds ref B3 par 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 It is suggested to use a shielded twisted pair AWG22 terminal 19 not connected internally can be used for shields connections To integrate the protection relay in control systems the documentation related to the protocol is freely available on request 37 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
42. u uu ee uu bb MM 9I0 MM ZOIG MM 2227 un ur TX eyed TA Ta Ta ONY Td A Ta Ta 810 LIO 90 SLO glo cio LLO uuuuuuuu S MM MM x C r o UUU o UUU uu uu uu uu uu uu uu uu 0220022002 DIO Ta 301 1 Ta SISI Ta xad xd TH XV TH lt XVI TH XX TH lt XXI TH a SLNHAG 60 80 10 90 so yo co LO Q UUU A AAAAK SALVLS WIONV XXX X XX XX I SHZASVAN d MM COIG SOLVIS MM DIG MM TOIC N LN ZI SOLVIS 299 299 TI SAVIHNI CIN LW 5012235 514235 5022345 sn je qs SOLWLS SOLVLS SINHAH s XS cs IS TOHSAYHL S IVNDIS Suns VdN l 1 V1 7 IYNODIH 1 16 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING 5 3 Address and time fig 3 B1 RELAY MODEL not programmable IAD3N The same protection relay can be used with CT s rated 1 Aor 5 A B2 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 selected by the protection relay B4 A
43. value Un UA1 gt UA2 gt 0 500 Un 0 100 Un 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 E6 ANGOLAR SECTOR THRESHOLD SET UP programmable DA nnn DOA nnn nnn threshold parameters expressed in degree ref paragraph 1 1 DA characteristic angle programmable from 180 to 180 DA sector width programmable from 015 to 180 23 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING Please use the right arrow push button to select the sign or the digit to be modified and the down arrow push button to select the parameter to be modified 090 D A 090 NOTE When a sector width D A is defined equal to 180 the related threshold SA becomes NON directional and it will be sensible only to the earth current threshold the overvoltage threshold UA gt will be indifferent as ANSI 51N Examples It is suggested to use as non directional threshold the threshold S3 instead of the threshold SA E7 TIME DELAY SET UP programmabile TI INDIP XX XX S Set up of the time delay to the activation TRIP of the programmed output relays when the SA directional threshold operates Parameter xx xx 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 TI
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