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Instruction Manual for BE1-79M

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1. 133 4 _ 50 12 7 TYP 12 s 1 47 19 11 mus 1 i 1 00 2 25 4 2 108 7 3 20 1 63 81 3 41 4 1 16 29 5 1 1 68 17 3 1 16 29 5 3 20 81 3 2 28 1 63 57 9 41 4 E 63 16 0 DIA 108 7 m 29 I 3 PLACES TYP 1 47 69 1 175 87 3 i 25 1 75 19 1 DIA 6 4 y 20 PLACES i 66 8 5 25 D1427 05 133 4 2 17 93 NUMBERS IN PARENTHESES INDICATE METRIC DIMENSIONS MILLIMETERS ALL OTHER DIMENSIONS ARE IN INCHES Figure 4 5 S1 Case Double Ended Projection Mounting Panel Drilling Diagram Rear View BE1 79M Installation 9170100990 Rev M 5 56 141 3 D1427 24 7 9 93 20 12 8 68 220 7 9 1 Figure 4 6 51 Double Ended Semi Flush Mounting Outline Dimensions Rear View 9170100990 Rev M BE1 79M Installation 4 7 5 56 141 3 D1427 02 7 9 93 20 12 8 68 220 7 Figure 4 7 51 Case Double Ended Projection Mounting Outline Dimensions Rear View 4 8 BE1 79M Installation 9170100990 Rev M BE1 79M OPERATING BE1 79M 4 POPERATING POWER POWER SENSING POWER NON ISOLATED SENSING ISOLATED SENSING LEGEND RI RECLOSE INITIATE SENSING INPUT CONTACTS DRIVE TO LOCKOUT SENSING INPUT CONTACTS 52b CIRCUIT BREAKER SENSING
2. 2 1 Figures Figure 2 1 Location of Controls and 2 1 Tables Table 2 1 BE1 79M Controls and Indicators Refer to Figure 2 1 2 2 Table 2 2 Logic Switch S23 Positions and Functions 2 3 9170100990 Rev M BE1 79M Human Machine Interface i This page intentionally left blank BE1 79M Human Machine Interface 9170100990 Rev SECTION 2 HUMAN MACHINE INTERFACE CONTROLS AND INDICATORS Figure 2 1 illustrates the location of controls and indicators on the front panel Table 2 1 explains the call outs shown in Figure 2 1 Table 2 2 lists the functions enabled per logic switch S23 position 2 C D E 1 79 RECLOSING RELAY Style No A7J DOMOF G Serial No H12345678 P0061 88 U S PATENT 4 845 594 7 cR2 CRE C49 EN 2 523 4 LOGIC SWITCH LOGIC SWITCHES ACCESSED ON LEFT SIDE OF RELAY WHEN CRADLE ASSEMBLY IS REMOVED FROM CASE Figure 2 1 Location of Controls and Indicators 9170100990 Rev M BE1 79M Human Machine Interface 2 1 Table 2 1 BE1 79M Controls and Indicators Refer to Figure 2 1 RECLOSE TIME Establish reclose time delays for corresponding time Controls 1 2 3 delayed reclo
3. 4 1 DIELECTRIC TEST eet ttt s 4 1 et dtt eta Dv tae Teo estu frueris ta ues ideo 4 1 GONNEGTIONS nh etn 4 1 Figures Figure 4 1 Panel Drilling Diagram Flush Mounting seem 4 2 Figure 4 2 51 Case Outline Dimensions Front 4 3 Figure 4 3 51 Case Double Ended Semi Flush Mounting Side 4 4 Figure 4 4 51 Case Double Ended Projection Mounting Side View 4 5 Figure 4 5 51 Case Double Ended Projection Mounting Panel Drilling Diagram Rear View 4 6 Figure 4 6 51 Case Double Ended Semi Flush Mounting Outline Dimensions Rear View 4 7 Figure 4 7 51 Case Double Ended Projection Mounting Outline Dimensions Rear View 4 8 Figure 4 8 Sensing Input 4 9 Figure 4 9 External Terminal 4 9 Figure 4 10 Typical Output 4 10 Figure 4 11 Typical Internal 4 11 9170100990 Rev M BE1 79M Installation i This page intentionally left blank BE
4. amupa auqa nnns 1 2 Style Number Example uz Ue eti er uui iss yuq 1 2 Style Number Change uu un usus ui Saa ulus Sana ou Ds ua kus 1 2 Oe a EP DP ec Ud erbe edd 1 2 SPECIFICATION S tse te cree teer eret E Ret te HE E te HR a 1 4 Temperature em eon elitm detenti teat atis 1 4 Figures Figure 1 1 Style Number Identification 1 3 Tables Table 1 1 Burden Nominal Per Non isolated Sensing 1 6 Table 1 2 Power Supplies 9170100990 Rev M BE1 79M General Information i This page intentionally left blank BE1 79M General Information 9170100990 Rev M SECTION 1 GENERAL INFORMATION PURPOSE The BE1 79M Multiple Shot Reclosing Relay automatically recloses circuit breakers which have been tripped by protective relays or other devices in power transmission and distribution systems e Over 90 of faults occurring on overhead lines may be cleared by momentarily de energizing the line Once the circuit breaker has been opened to de energize the line the BE1 79M provides a reliable automatic reclosure The advantages are e Improved Service Continuity returns the line to service quickly preserving line integrity and minimizing outage effects on critical loads e System Stability prevents disjointing of the sy
5. Manual Revision and Date Change M 01 11 e Updated Note 2 for Style Chart in Section 1 e Updated Figure 2 1 to match latest board layout L 06 09 e Updated Storage statement in Section 6 e Removed In House Repair from Section 6 Removed BE1 79M Test Set from Section 6 e Updated power supply options descriptions in Style Chart e Added manual part number and revision letter to page footers K 11 06 e Added Notes 1 and 4 to style chart in Section 1 J 06 98 e Deleted reference to Service Manuals e Replaced Power Supply paragraph on page 3 6 starting with Basler Electric enhanced the power supply e Deleted Figure 3 4 and added Table 3 3 e Corrected the Figure numbering following Figure 3 4 e Changed the burden data for new power supply in Table 1 2 e Separated Section 4 into two sections Now Section 5 is TESTS and ADJUSTMENTS e Revised all numbers referring to figures tables and sections involved in this change e Added new dimension figures to include all options available S1 Double Ended and both mounting positions e Added case ground to Figure 4 9 e Changed the format of the manual 1 01 97 e Corrected Figure 1 1 by adding 7 8 to note 2 e Changed Specifications to reflect the updates in the Outputs RFI and Surge Withstand Capability e Clarified first paragraph on page 3 3 e Changed INST to 2 TIME DELAY in Figure 3 7 e Added disconnects to 20 and 11 in Figure 4 3
6. Z L NOILdO pue 9es 66 0 20 0 87 O N 3l v NOlLdO Pug 9 puz PARRI 14548 9 1103201 005 666 1 O N O11 peyejos IN 295 007 071181 yndu Burisues fejeg 295 6 66 1 0 ZV ejqeu3 du 1 295 0001 01 snoeuejuejsu v euoN 0 pejejosp uow 1 fejeg O 298 666 10 OV euoN 0 1ous nini 3dAL NOILdO NOILdO YAWIL 13534 INIL 5114110 TOULNOO 9NISN3S 0 64 1 NOILVOISILNAG 1 185 9170100990 Rev BE1 79M Difference Data OUTPUT CONTACT 19 17 15 13 11 EXTERNAL CONNECTIONS 20 18 16 14 12 L MODULE NOTE 1 wa 11019 1817 7675747 3 EXTERNAL CONNECTIONS fylelelelelelelelele FOR CONTACT INPUTS AND POWER SUPPLY Reclosing SOLID STATE PROTECTIV 1 AND 2 OUTPUT CONTACT EXTERNAL CONNECTIONS D806 011 11 16 95 NOTE 1 When projection mounting has been selected the power module must be removed prior to installation and then attached to the rear of the mounting panel after the relay has been installed External contact sensing inputs are then wired to the power module Figure
7. JsnW pue 1 201 JON 117 10 JSNW pue 1 04201 JON V pawos IN indui 1981105 p lelosi uoN 1 NOILdO p x 1n03907 eJd V 1 0 uonoefoJd d 4 euoN 0 juowubissy NOILdO v NOILdO NOILdO Jemod Buisues op 1 51 SALON O N OLld I orig 001 1 O N al H p 5 O N al 5 peo1 13538 O N al 3 O N Or 1981uoo 16009 euog N 911 390 g 1281005 O 9 211 snoeuejuelsu Car pug pue pug 481 6 66 1 0 spuooes 66 0 6070 pig pue pu 666 L 01183 spuooes 6 66 1 0 V spuooes 6 66 10 9v A 062 Z OPA Sz 87 1 89 3 LA 021 001 OPA 921 SLNdLNO TOHLNOD AlddNS
8. RU eo ECL nai maa aym Lu e Pe 3 1 Contact Iriterface niter e RE en rg 3 3 LOGIC SWITCH 22424 E 3 3 Rss C M 3 4 Instantaneous Trip Enable Optional 3 4 e EE Med db Maie ag rte tbe endis 3 4 Program rd ome EHE Pede e EE ee EP deat cas ER 3 4 Power Loss Detector ue bre oce bn EH t er EC ERR 3 4 HE mah un waqsa 3 5 Power Supply u muyun at Em en rte pd outs te 3 5 OPERATIONAL CHARACTERISTICS n 3 6 3 6 3 7 3 7 Reclosing Sequences 3 8 Dicere 3 8 Maximum Gy Cle OI nM Maa 3 8 et pete er Ir e dani eire 3 8 Control Outputs and Special Contact Assignments 3 11 REGLOSING EVENT MEMORY 4 eese hte ree eere D e de Eae e eb rte 3 11 nec cm Ec m D Reni 3 11 Data Retrieyal c s iow ee misuse ettet 3 12 Data Retentlor
9. af TRIP S f TRIP ZN CLOSED ITEC ITEC ITEC ITEC ITEC ITEC gt r INST J T IF IF T TD3 IF DEDE S1E S2E S3E S4E S5E 777777777777777 LOCKOUT RECLOSE INITIATE SEQUENCE WITH INSTANTANEOUS RECLOSE BYPASS SIGNAL 1ST 2ND 3RD 4TH BREAKER gt RESET TRIP RECL 2 X RECL TRIP ZN CLOSED 5 ITEC ITEC ITEC ITEC ITEC gt SS TD4 1 IF 9 TD2 9 TD3 3 IF IF BREAKER 53 S4E S5E OPEN ey YS LOCKOUT PILOT INITIATED SEQUENCE 1ST 2ND 3RD 4TH BREAKER gt RESET RECL X f TRIP ZN CLOSED 2 lt ITEC ITEC ITEC ITEC ITEC INST lt J TD2 F IF 39 IF F BREAKER S1E S2E S4E S5E S1E OPEN 777777777777777 LOCKOUT NOTES ZN IF CONTROL OUTPUT IS F OR G ITEC WILL BE OPEN RECLOSE TIME DELAY OPTION IS 8 THEN THIS IS PILOT TIME DELAY ITEC INSTANTANEOUS TRIP ENABLE OUTPUT CONTACTS CLOSED SE INSTANTANEOUS TRIP SWITCH BEDS INST INSTANTANEOUS RECLOSURE NO INTENTIONAL DELAY RECLOSURE TIME DELAY SETTING xx UNKNOWN TIME INTERVAL lt RESET TIME SETTING Figure 3 5 Reclosing Sequences 9170100990 Re
10. NOTE Be sure that the BE1 79M is hard wired to earth ground with no smaller than 12 AWG copper wire attached to the ground terminal on the rear of the unit case When the BE1 79M is configured in a system with other devices it is recommended to use a separate lead to the ground bus from each unit 9170100990 Rev M BE1 79M Introduction i First Printing January 1986 Printed in USA 2009 2011 Basler Electric Highland Illinois 62249 USA All Rights Reserved January 2011 CONFIDENTIAL INFORMATION of Basler Electric Highland Illinois USA It is loaned for confidential use subject to return on request and with the mutual understanding that it will not be used in any manner detrimental to the interest of Basler Electric It is not the intention of this manual to cover all details and variations in equipment nor does this manual provide data for every possible contingency regarding installation or operation The availability and design of all features and options are subject to modification without notice Should further information be required contact Basler Electric BASLER ELECTRIC ROUTE 143 BOX 269 HIGHLAND IL 62249 USA http www basler com info basler com PHONE 1 618 654 2341 FAX 1 618 654 2351 BE1 79M Introduction 9170100990 Rev M REVISION HISTORY The following information provides a historical summary of the changes made to this instruction manual 9170100990 of the BE1 79M
11. SEE P N 9 1702 06 101 WITH PI US P N 9 1702 06 102 WITHOUT PI NON ISOLATED SENSING ISOLATED SENSING WITH 2 WITH TYPE Z POWER SUPPLY POWER SUPPLY LEGEND RI RECLOSE INITIATE SENSING INPUT CONTACTS DTL DRIVE TO LOCKOUT SENSING INPUT CONTACTS 52b CIRCUIT BREAKER SENSING INPUT CONTACTS 61601 IRB INSTANTANEOUS RECLOSE BYPASS SENSING INPUT CONTACTS PI PILOT INITIATE SENSING INPUT CONTACTS OPTIONAL Figure 7 2 Sensing Input Connections ASSEMBLING ADAPTER TO TEST PLUG STEP 1 Remove top and bottom covers of test adapter by removing the 4 retaining screws STEP 2 Remove ten black thumbnuts from test plug 3 The studs of the test plug may be entered into the ten matching holes of the adapter Before assembling the test plug to the adapter it necessary to orient the two units to each other by holding the black side of the test plug UP as it engages the adapter The adapter itself is held topside UP i e front panel letters are upright STEP 4 Replace the ten black thumbnuts Firmly hand tighten each thumbnut STEP 5 Replace top and bottom covers and fasten using 4 retaining screws removed in step 1 1 4 BE1 79M Difference Data 9170100990 Rev M TEST PLUG BASLER P N 10095 ADAPTER BASLER P N 9170111XXX BLACK THUMB NUTS TYPICAL 10 PLACES Figure 7 3 Test Plug and Adapter TEST PLUG SUPPLEMENTARY TERMINALS TERMINALS Q Q Figu
12. a ama Cad tae ad to 5 1 REQUIRED TEST EQUIPMENT tite 5 1 OPERATIONAL eR ederent Tete C 5 1 RECLOSING EVENT MEMORY 5 5 Data dere etti HO ERR 5 5 Data Retention 5 6 Clearing Stored r u iicet e eti HE E P o me 5 6 Figures Figure 5 1 Operational Test 5 2 9170100990 Rev M BE1 79M Tests and Adjustments i This page intentionally left blank BE1 79M Tests and Adjustments 9170100990 Rev M SECTION 5 TESTS AND ADJUSTMENTS GENERAL Procedures in this section are for use in testing and adjusting a relay for the desired operation in a protec tive scheme If a relay fails an operational test or if an adjustment discloses a faulty relay refer to Section 6 Maintenance REQUIRED TEST EQUIPMENT Minimum test equipment required for relay testing and adjustment is listed below Refer to Figure 5 1 for the test setup NOTE Commercially available frequency relay test sets with frequency and time gene rating accuracies exceeding those of the relay and including electronic switching may be used Appropriate ac or dc power source for relay operatio
13. e Revised Section 5 paragraph 1 to include both Service Manual numbers e Corrected an error on page 5 2 H e Changed Introduction to include Service Manual Publication 9170100623 e Added new Figures 4 3 and 4 9 G e Changed Style Number Identification Chart first character from A to B in response to ECA 12237 e Changed operational Test Procedure Section 4 to improve procedures and correct typographical error e Added old Style Number Identification Chart to Section 7 9170100990 Rev M BE1 79M Introduction iii Manual Revision and Date Change F e Manual revised to support the following relay changes o Six additional control output options o Two additional reclose time delay options o power supply option o Reset timer 1 100 second time delay option o Four additional special contact assignments options o A four function field selectable logic switch Moved sensing input power module from outside the case to inside the case e Added Section 7 Difference Data to support BE1 79M Relay revision D and previous E e Operational test procedure revised e Pages 5 5 and 5 6 added e Section 6 added D e Page 3 9 Subsection entitled Reclosing Event Memory rewritten for clarification e Pages 4 2 through 4 5 Operational test procedure revised e Pages 5 2 through 5 4 Subsection entitled Test Plug Adapter added e Added Qualifications to specifications listing rev
14. BE1 79M Model Number B Multiple shot 6 Lockout and reset with reclose fail and maximum cycle A Instantaneous trip enable Reclose time delay adjustable from 0 1 to 99 9 seconds J Operating power derived from 125 Vdc 120 Vac source Reset time delay adjustable from 10 to 1000 seconds 0 Standard contact assignment L Non isolated contact sensing 0 No option 3 available Semi flush mounting Style Number Change Effective November 18 1991 serial number 2812 and subsequent the BE1 79M Multiple Shot Reclosing Relay style number identification for multiple shot is changed from A to B This style number change was made to differentiate relays with sensing input power module on the outside of the case style number A and relays with the sensing input power module inside the case style number B Section 7 of this manual provides difference data for style number A relays Compatibility Relays with style number B are backwards compatible That is they may be used in place of relays with style number A The only exception is for a relay with a type Z power supply 250 Vdc 230 Vac and isolated sensing For details see section 7 of this manual Relays with style number A are NOT forward compatible They may NOT be used in place of relays with style number B 1 2 BE1 79M General Information 9170100990 Rev M uonoes enuen uononasu eas 3 9 10 p
15. G ysnw 87071 uondo nul 165 5 p HEM Z 52 062 OPA 092 2 OPASZL 318VHO LIMS OPA 1 OPA 021001 OPA 92 5 ONOLIS ON au I 2118 H O N 917 peo1 9 9 peo1 O N 3lI 1963002 O N 917 pue ejeniu wey eJnjre pue 8 pue jesey pue pue eJnjre jesey pue 9 pue pue G pue p jesey pue 2 7923009 D N 31I 2 JORWUOD INSWNOISSV pug 8 puz 181 JORIUOD YIM sn iues 4 LOVLNOS 1912348 295 666 0 917 olg pue
16. ZAY BE NO OR NC Figure 4 10 Typical Output Connections BE1 79M D729 007 5 13 91 4 10 79 Installation 9170100990 Rev NON ISOLATED CONTACT ISOLATED CONTACT SENSING WY LOCKOUT RECLOSE RECLOSEFAIL RELAY FAIL PILOT PRE LOCKOUT PADDLE OPERATED SHORTING BARS ONLY IF NC CONTACTS ARE USED TO MICROPROCESSOR 12Vdc TT BRIDGE OPTO eq RECTIFIER ISOLATOR EXTERNAL CASE COM GROUND TERMINAL SENSING INPUT GND TO OPTOCOUPLERS VENE OPTOCOUPLER I4 J2 48Vdc OR 125Vdc FIELD SELECTABLE LINK PADDLE OPERATED SHORTING BAR ONLY IF NC CONTACT IS USED BLOCK LTC POWER E SUPPLY 7 O 6 6 9 e BE1 79M 932 002 06 24 98 Figure 4 11 Typical Internal Connections 9170100990 Rev M BE1 79M Installation This page intentionally left blank 4 12 BE1 79M Installation 9170100990 Rev SECTION 5 TESTS AND ADJUSTMENTS TABLE OF CONTENTS SECTION 5 TESTS AND 5 5 1 GENERA Lia tre cae
17. 7 1 External Connections TEST PLUG ADAPTER Function Relays revision D and previous have voltage dropping resistors mounted externally on the back side of the case These resistors are part of the internal circuitry despite their external location When using test plug Basler part number 10095 with these relays compensating resistors must be added For ease of use Basler Electric has manufactured test plug adapters with internal compensating resistors Table 7 1 provides the appropriate test plug adapter part number for each power supply type The test plug adapter is shown attached to the test plug in Figure 7 3 The adapter should be attached to the test plug before it is inserted into the relay If the correct adapter is not available a test setup may be improvised by inserting the proper resistors in series with certain test plug terminals as shown in Figure 7 4 Notice that supplementary terminals not supplied by Basler Electric have been added for convenience in making the connections 9170100990 Rev M BE1 79M Difference Data 7 3 Table 7 1 Test Adapters Power Supply Type Test Adapter Part Number 125 V 9170111102 230 V 9170111104 The surface of 230 units may become hot OPERATING POWER 250 230 Vac 3 4 5 6 7 r SENSING TB1 MODULE POWER 250 Vdc OPERATING 230 Vac P N 9 1702 06 107 WITH PI P N 9 1702 06 108 WITHOUT PI SENSING MODULE I Z on 5
18. Fail microprocessor or supply These contacts open the completion of the power up sequence Reclose Fail Normally open contacts are closed to indicate that the breaker has not Optional responded to the reclose command output in the allotted time Normally open contacts are closed to energize the closing coil of the controlled Pilot Optional circuit breaker on the first reclosure attempt of a pilot initiated reclosing sequence Normally open contact that is closed to signify that the last programmed reclose Optional emol eking place is Normally open or normally closed contacts change state to enable an instantaneous tripping scheme during the reclosing sequence These contacts Instantaneous Trip are controlled by the front panel switches and the selected reclosing sequence Enable Optional normally open ITE will close to enable instantaneous tripping and a normally closed ITE will open to enable instantaneous tripping Block Load Tap Normally closed or normally open contacts change state to disable automatic Changer Optional load tap changer operation during a reclosing sequence Power Supply Basler Electric enhanced the power supply design for unit case relays This new design created three wide range power supplies that replace the four previous power supplies Style number identifiers for these power supplies have not been changed so that customers may order the same style num
19. INPUT CONTACTS IRB INSTANTANEOUS RECLOSE BYPASS SENSING INPUT CONTACTS PI PILOT INITIATE SENSING INPUT CONTACTS OPTIONAL RST INH RESET INHIBIT SENSING INPYT CONTACTS OPTIONAL REC WAIT RECLOSE WAIT SENSING INPUT CONTACTS OPTIONAL RP RECLOSE PERMISSIVE SENSING INPUT CONTACTS OPTIONAL OPTION 418 4 PI IS REPLACED WITH RST INH IF OPTION 1 IS 2 RI IS REPLACED WITH REC WAIT BE1 79M IF OPTION 115 4 D729 006 RI IS REPLACED BY RP 11 14 91 Figure 4 8 Sensing Input Connections Reclosing SOLID STATE PROTECTIV CASE GROUND 2 TER Figure 4 9 External Terminal Connections 9170100990 Rev M BE1 79M Installation 4 9 RECLOSE FAIL LOCKOUT ALARM LEGEND 79M MULTIPLE SHOT RECLOSING RELAY 50 INSTANTANEOUS OVERCURRENT RELAY 51 TIME OVERCURRENT RELAY 52 CIRCUIT BREAKER 52a CIRCUIT BREAKER AUXILIARY CONTACTS 52b CIRCUIT BREAKER AUXILIARY CONTACTS K1 RECLOSING OUTPUT CONTACTS K2 LOCKOUT ALARM OUTPUT CONTACTS RECLOSE FAIL ALARM OUTPUT CONTACTS LOCKOUT AND RESET 2 5 6 8 K4 INSTANTANEOUS TRIP ENABLE OUTPUT CONTACTS CONTROL OUTPUT A C K5 BLOCK LOAD TAP CHANGER OUTPUT CONTACTS CONTROL OUTPUT B C K6 RELAY FAIL ALARM OUTPUT CONTACTS K7 PILOT RECLOSING OUTPUT CONTACTS LOCKOUT AND RESET 3 5 7 8 TC TRIP COIL CC CLOSING COIL ONTROL CIRCUIT FUSING IF USED
20. atr donet uel bu ned 6 1 9170100990 Rev M BE1 79M Maintenance This page intentionally left blank BE1 79M Maintenance 9170100990 Rev SECTION 6 MAINTENANCE GENERAL BE1 79M Multiple Shot Reclosing Relay requires no preventive maintenance other than a periodic opera tional test refer to Section 5 Tests and Adjustments for operational test procedure If factory repair is desired contact the Customer Service Department of the Power Systems Group Basler Electric for a return authorization number prior to shipping STORAGE This device contains long life electrolytic capacitors For devices that are not in service spares in sto rage the life of these capacitors can be maximized by energizing the device for 30 minutes once per year TEST PLUG Test plug Basler P N 10095 provides a quick easy method of testing relays without removing them from the case The test plug is simply substituted for the connection plug This provides access to the external stud connections as well as to the internal circuitry The test plug consists of a black and red phenolic molding with twenty electrically separated contact fingers connected to ten coaxial binding posts The ten fingers on the black side are connected to the inner binding posts black thumbnuts and tap into the relay internal circuitry The ten fingers on the red side of the test plug are connected to the outer binding posts red t
21. latch to simulate breaker opening LOCKOUT LED should light immediately If the BLTC NC option is present a continuity check should show continuity between terminals 1 and 2 If the BLTC NO option is present a continuity check should NOT indicate continuity between terminals 1 and 2 BE1 79M Tests and Adjustments 9170100990 Rev M 5 10 5 11 5 12 5 13 5 14 5 15 5 16 Press and release switch 57 K1 reset to simulate breaker closed Reset the timer 60 seconds the LOCKOUT LED should go out and the RESET LED should light Toggling the front panel RESET lever should extinguish the STATUS 1 2 and 3 LEDs If automatic reset of STATUS LEDs is selected on logic switch 523 the STATUS 1 2 and 3 LEDs will extin guish when the relay reaches RESET Press and release switch S2 DTL The RESET LED should go out and the LOCKOUT LED should light A continuity check across terminals 19 and 20 should indicate continuity In ap proximately 60 seconds the LOCKOUT LED should go out and the RESET LED should light Open switch S3 IRB Change RECLOSE TIME 1 thumbwheel setting to 000 Press and release switch S6 K1 latch The RESET LED should go out and the INST LED should light Press and release S6 again The LOCKOUT LED should light A continuity check across terminals 19 and 20 should indicate continuity Press and release switch 57 reset In 60 seconds the LOCKOUT LED
22. now ready for data retrieval Before proceeding notice that the following controls and indicators are re defined whenever the REM function is in use RECLOSE TIME thumbwheel 3 least significant digit only Selects the type of event for which data is to be retrieved Refer to Table 3 4 for event and switch positions STATUS LEDs INST 1 and 2 Verify that the digit selected on RECLOSE TIME thumbwheel 3 is correct The STATUS LEDs will be ON as shown in Table 3 4 RECLOSE TIME thumbwheel 1 3 digits Indicates the number of accumulated events when ma nually rotated so that RESET LED and STATUS 3 LED are both ON STATUS LED 3 Means lt less than RESET LED Means gt greater than To retrieve REM data complete the following procedure e Remove relay from service and position NORMAL TEST switch to TEST e Position RESET thumbwheel switch to 00 e Select the type of event MODE desired by setting RECLOSE TIME thumbwheel 3 as indicated in Table 3 4 Verify that the desired mode is selected by observing the INST 1 and 2 STATUS LEDs e Observe the STATUS LED 3 and RESET LED These indicators identify whether the number selected on RECLOSE TIME 1 thumbwheel is less STATUS LED 3 ON or greater RESET LED ON than the number stored in memory e Position RECLOSE TIME 1 thumbwheel until both STATUS LED and RESET LED are ON When both indicators ON the selected number on RECLOSE TIME 1 thumbwheel
23. setting is equal to the stored number Table 3 4 REM Data Retrieval Modes RECLOSE TIME 3 Thumbwheel STATUS LED Type of Event Least Significant Digit inst 0 0 0 1 0 1 1 Instantaneous 1st time delayed 2nd time delayed 3rd time delayed Pilot reclosure Unsuccessful reclosures 5 None Any other NOTE 1 the STATUS Indication column indicates LED is ON Data Retention To retain data stored in memory and resume the event count e Position the NORMAL TEST switch on the logic board to NORMAL e Return front panel controls to their regular settings e Place the relay back in service 3 12 BE1 79M Functional Description 9170100990 Rev M Clearing Stored Data To clear the data from memory Toggle the RESET lever once Position the NORMAL TEST switch on the logic board to NORMAL Return front panel controls to their regular settings Place the relay back in service It is a good practice to verify that the memory is cleared by repeating the data retrieval procedure and observing the results 9170100990 Rev M BE1 79M Functional Description 3 13 This page intentionally left blank 3 14 BE1 79M Functional Description 9170100990 Rev SECTION 4 INSTALLATION TABLE OF CONTENTS SEGTION TALLATION LOSS S ehe WP eer be eae 4 1 4 4 RELAY OPERATING
24. up sequence STATUS LEDs 1 2 Latched ON to indicate progression of reclosing sequence 3 Extinguished by RESET lever power loss or when relay reaches RESET if STATUS LED reset is optionally selected by logic switch S23 LOCKOUT ON when relay is in LOCKOUT Non latching INSTANTANEOUS TRIP Five toggle switches which enable or block instantaneous Optional tripping of circuit breaker Numbers correspond to the relay state or a specific trip depending on the type of reclosing sequence in progress RECLOSE FAIL LED ON when circuit breaker 52b contact does not open within Optional selected time after reclose output has been energized RECLOSE FAIL Control Limits duration of reclose command signal Thumbwheel Optional adjustable from 0 1 to 9 9 seconds in 0 1 second increments For a setting of 00 the reclose command signal is continuous until the breaker closes MAX CYCLE LED ON when maximum cycle limit as established by the MAX Optional CYCLE control has been exceeded 2 2 BE1 79M Human Machine Interface 9170100990 Rev M CYCLE or PILOT TIME With MAX CYCLE establishes maximum cycle limit Control Optional maximum allowable interval from initiation of reclosing sequence until RESET or LOCKOUT Thumbwheel adjustable from 1 to 1000 seconds in 1 second increments A setting of 000 allows a 1000 second maximum cycle With reclose time delay option A8 PILOT TIME the two least signifi
25. uu cde e eere 3 12 Clearing Stored Data eee tree t reti 3 13 Figures Figure 3 1 Functional Block 3 2 Figure 3 2 Contact Sensing Board Link 3 3 Figure 3 3 Recognition Dropout Timing 3 4 Figure 3 4 Power up Flow 3 7 Figure 3 5 Reclosing Sequences Sa RRA ash 3 9 Figure 3 6 Reclosing Flow 2 020 22121 2 1222 4 44041114 006 uQ 3 10 Tables Table 3 1 Function of Sensing 3 1 Fable 3 2 Output COntacls 5 Hn obtigit 3 5 Table 3 3 Wide Range Power Supply Voltage 3 6 Table 3 4 REM Data Retrieval 3 12 9170100990 Rev M BE1 79M Functional Description i This page intentionally left blank BE1 79M Functional Description 9170100990 Rev M SECTION 3 FUNCTIONAL DESCRIPTION GENERAL The BE1 79M Multiple Shot Reclosing Relay is a microprocessor based device which responds to the state of external contacts In responding the Relay provides automatic reclosure once the circuit breake
26. 0100990 BE1 79M Difference Data i This page intentionally left blank BE1 79M Difference Data 9170100990 Rev SECTION 7 DIFFERENCE DATA GENERAL This section provides the information necessary to support BE1 79M Multiple Shot Reclosing Relays Revision D and previous DIFFERENCES BE1 79M Multiple Shot Reclosing Relay Revision F added the following features and capabilities Six additional control output options Two additional reclose time delay options Y type power supply option Reset timer 1 100 second time delay option Four additional special contact assignment options A four function 16 position field selectable logic switch Moved sensing input power module from outside the case to inside the case The following style number identification chart is applicable to relays revision D and previous and will identify those relay features and capabilities Disregard information contained in Sections 2 through 6 of this instruction manual that are peculiar to relays revision F and subsequent For installation testing and maintenance of revision D and previous relays the following information is necessary COMPATIBILITY Revision E and subsequent are backward compatible with revision D and previous with one exception This exception is a relay with a type Z power supply 250 Vdc 230 Vac and isolated sensing To use a relay revision E or subsequent in a revision D or previous relay installation cas
27. 01084 H 8501244 L SI L NOILdO HNI 534 L3S3 51 VY 110 100 OL aul SSVdAd ISNI Id SLVILINI 1011 829 SLVILINI VN Figure 3 1 Functional Block Diagram 9170100990 Rev M tion BE1 79M Functional Descrip SYOLVOIGNI STSSHMEWNHL LINK 16 E C16 J1 ces cee 125 VOLTS R 5 9 4 mn 95 10 30 06 Figure 3 2 Contact Sensing Board Link Position Recognition and response to closure of the sensing contacts is time dependent All contact sensing inputs must be present for a minimum of 6 milliseconds before recognition For a reclosing sequence to begin the 52b contact closure must occur within 17 5 milliseconds after either RI or PI has dropped out For a longer output recognition 200 milliseconds logic switch S23 provides a fi
28. 1 79M Installation 9170100990 Rev SECTION 4 INSTALLATION GENERAL When not shipped as part of a control or switchgear panel the relays are shipped in sturdy cartons to prevent damage during transit Immediately upon receipt of a relay check the model and style number against the requisition and packing list to see that they agree Visually inspect the relay for damage that may have occurred during shipment If there is evidence of damage immediately file a claim with the carrier and notify the Regional Sales Office or contact the Sales Representative at Basler Electric High land Illinois In the event the relay is not to be installed immediately store the relay in its original shipping carton in a moisture and dust free environment When the relay is to be placed in service it is recommended that the operational test procedure Section 5 be performed prior to installation RELAY OPERATING PRECAUTIONS Before installation or operation of the relay note the following precautions 1 The relay is a solid state device If a wiring insulation test is required remove the connection plugs and withdraw the cradle from its case 2 When the connection plugs are removed the relay is disconnected from the operating circuit and will not provide system protection Always be sure that external operating monitored conditions are stable before removing a relay for inspection test or service 3 Be sure the relay case is hard wi
29. AIL Inhibited 00 setting MAX Cycle 1000 0 seconds 000 setting NOTES 1 If reset timer option is D set RESET to 60 2 If reclose time delay option is A7 set RECLOSE TIME 2 to 010 and RECLOSE TIME to 015 3 If reclose time delay option is A8 set PILOT TIME to 99 9170100990 Rev M BE1 79M Tests and Adjustments 5 1 1 79 D735 003 6 18 91 STEP 3 STEP 4 STEP 5 STEP 6 STEP 7 STEP 8 STEP 9 oS cf iS E i 0229 51 5 SU DTL 52 7 52 DTL IRB c o 33 10 3 oS BEL 8 54 427 PI 52b K1 aux 6 K1 aux 52b ISOLATED SENSING OPTION 2 M NON ISOLATED SENSING OPTION 2 L RECLOSE NOTES IF OPTION 1181 P1 IS REPLACED WITH RST INH IF OPTION 1 152 RI IS REPLACED WITH REC WAIT IF OPTION 154 RI IS REPLACED BY 2A SPECIAL TEST SET IS AVAILABLE THAT CONVENIENTLY PROVIDES THE TEST SET UP ILLUSTRATED HERE SEE SECTION 5 FOR DETAILS Figure 5 1 Operational Test Setup If Instantaneous Trip Enable option is present in your unit place all INSTANTANEOUS TRIP toggle switches in the Block position Apply relay operating power POWER LED and RELAY FAIL LED should light In 60 seconds RELAY FAIL LED should go out and RESET LED should light If the BLTC option is present a continuity check should show continuity between terminals 1 and 2 If BLTC NO option is present a continuity c
30. H3MOd ANWIL 3S0 103H 110111111111111 1111 lal L weza 06 19004 pue 64 pue 1n0320 8 pue aNu pue 1n0320 ejo o pue ainsojoey pue 9 pue 9164 pue 1n0320 G pue 1n0320 r ayu pue pue 1n03201 2 pue 19538 1003201 jous nini AdAL LAdNI 9NISN3S Figure 1 1 Style Number Identification Chart BE1 79M General Information 9170100990 Rev M SPECIFICATIONS The BE1 79M Relay is available with the following features and capabilities Contact Sensing Reclose Initiate Breaker 52b Pilot Initiate Instantaneous Reclose Bypass Drive to Lockout Power Supply Outputs Timing Reclose Pilot Optional Reset Reclose Fail Optional Maximum Cycle Optional Temperature Operating Storage 1 4 The contact sensing circuits require user supplied contacts with a minimum rating of 0 025 A at 250 Vdc Sensing current is supplied by the relay in styles with isolated sensing Styles with non isolated sensing require an appl
31. INSTRUCTION MANUAL FOR MULTIPLE SHOT RECLOSING RELAY BE1 79M Basler 1 05 X04s 1 X1 0s f 1 05 IT X1 0s 1 RECLOSE 4 2 3 RESET CYCLE FAIL Dot RECLOSE TIME O O60000 INST 1 2 3 LOCKOUT status 1 2 3 4 5 A A A A A RELAY OUTPUT PILOT FAIL ENERGIZE INSTANTANEOUS TRIP POWER BE1 79M RECLOSING RELAY Style BBA A7J DOMOF Serial No H12345678 U S PATENT 4 845 594 046 01 Lj Basler Electric Publication 9170100990 Revision M 01 11 INTRODUCTION This instruction manual provides information about the operation and installation of the BE1 79M Multiple Shot Reclosing Relay To accomplish this the following information is provided e General Information and Specifications e Controls and Indicators e Functional Description e Installation e Testing e Maintenance WARNING To avoid personal injury or equipment damage only qualified personnel should perform the procedures in this manual
32. ay fail contacts close and all further functions of the relay cease until input power is removed and restored When power is restored the microprocessor uses this data if logic switch S23 memory save function is enabled and the power loss occurred during a reclosing sequence to resume operation from the point of power loss The relay compensates for any change of state of the breaker which may have occurred during power off 3 4 BE1 79M Functional Description 9170100990 Rev M However the remaining least significant digits of the maximum cycle time reclose delay time and the remaining reclose fail time are not stored If the two most significant digits of the remaining maximum cycle time at power loss are 00 the least significant digit is seen as 9 on power restoration If the relay is in RESET when power is lost and logic switch S23 power up to reclose function is enabled the relay will close the breaker during power up if RI or PI is present Outputs Output commands from the microprocessor light LED indicators and are amplified by driver circuits to energize the coils of the output relays Individual output contacts and their functions are listed in Table 3 2 Table 3 2 Output Contacts R Normally open contacts are closed to energize the closing coil of the controlled eclose circuit breaker Normally open contacts are closed to indicate lockout Normally closed contacts will be closed to indicate a malfunction of the Relay
33. bers that they ordered previously The first newly designed power supplies were installed in unit case relays with EIA date codes 9638 third week of September 1996 A benefit of this new design increases the power supply operating ranges such that the 48 125 volt selector is no longer necessary Specific voltage ranges for the three new power supplies and a cross reference to the style number identifiers are shown in Table 3 3 Relays with a Y type power supply also have a field selectable link J2 on the contact sensing board to match the power supply nominal input voltage of 48 Vdc or 125 Vdc The contact sensing functional description at the beginning of this section described the field selectable link J2 9170100990 Rev M BE1 79M Functional Description 3 5 Table 3 3 Wide Range Power Supply Voltage Ranges Power Supply Style Chart Identifier Nominal Voltage Voltage Range 48 125 24 to 150 Mid Range JK Y 120 Vac 90 to 132 Vac m 125 250 62 to 280 9 9 120 240 90 to 270 Vac 14 Vdc required to start the power supply Relay operating power is developed by the wide range isolated low burden flyback switching solid state power supply Nominal 12 12 Vdc is delivered to the relay internal circuitry Input source voltage for the power supply is not polarity sensitive A red LED turns ON to indicate that the power supply is func tioning properly OPERATIONAL CHARACTERISTICS Du
34. cant digits are used for the pilot time delay for a pilot reclose attempt Thumbwheel adjustable from 0 03 to 0 99 seconds A setting of 00 01 and 02 is equivalent to 03 setting NORMAL TEST Switch Provides selection of relay operating mode Logic Switch Field selectable 16 position switch S23 enables combinations of the following functions Memory save Power up to reclose Recognition dropout Status LED reset Refer to Table 2 2 for switch positions and functions enabled To be enabled function changes require relay power removal and power up after setting switch position CAUTION With Power up to Reclose enabled relay will close the breaker during power up if relay was in RESET when powered down and Pilot Initiate or Reclose Initiate is present during power up Table 2 2 Logic Switch S23 Positions and Functions Enabled Functions Enabled 9170100990 Rev M BE1 79M Human Machine Interface 2 3 Functions Enabled Default position from factory Recognition Dropout Status LED Reset Memory Save Power up to Reclose Refer to Caution preceding Table 2 2 BE1 79M Human Machine Interface 9170100990 Rev SECTION 3 FUNCTIONAL DESCRIPTION 5 SECTION FUNCTIONAL 3 1 GENERALE ET EAT 3 1 FUNCTIONAL DESCRIPTION 06 usai 3 1 Contat Sensing
35. dered in reclosing is supervisory control Supervisory control allows the operator to maintain control of the system at all times The BE1 79M has inputs available to bypass the instantaneous reclose attempt and to drive the relay to LOCKOUT inhibiting relay operation at any time In addition a separate input is available which may be used to initiate a pilot reclosing sequence The fourth major factor is system coordination The BE1 79M has outputs available which may be used to block or enable instantaneous tripping of the circuit breaker and block a transformer s automatic load tap changer operation during a reclosing sequence 9170100990 Rev M BE1 79M General Information 1 1 MODEL AND STYLE NUMBER The electrical characteristics and operational features included in a specific relay are defined by a combination of letters and numbers which constitutes the device s style number The style number together with the model number describe the features and options in a particular device and appear on the front panel drawout cradle and inside the case assembly The model number BE1 79M designates the relay as a Basler Electric Class 100 Multiple Shot Reclosing Relay The BE1 79M style chart is shown in Figure 1 1 Style Number Example The following style number identification chart illustrates the features and options for BE1 79M relays For example if the style number were BE1 79M B6A A6J COLOF the device would have the following features
36. e the external sensing module part number 9170206101 or part number 9170206102 must be removed from the wiring scheme and connected for isolated sensing as shown in Figure 4 8 All other revision E and subsequent relays may be installed into existing installations cases without rewiring NOTE Be sure the relay case is hard wired to earth ground with no smaller than 12 AWG copper wire attached to the ground terminal on the rear of the relay case When the relay is configured in a system with other protective devices it is recommended to use a separate lead to the ground bus from each relay CONNECTIONS External connections for the contact sensing inputs are made at the power module on the rear of the relay case Figure 7 1 External connections for the output contacts are made at the relay case terminals If a type Z power supply has been selected external connections for the contact sensing inputs are made at the sensing input module located external to the relay The sensing input module may be located remote ly from the relay Typical sensing input module connections wired to the remote power module are shown in Figure 7 2 Connections should be made using a minimum wire size of 14 AWG stranded wire except as noted for the ground wire 9170100990 Rev M BE1 79M Difference Data 7 1 16 11 1 700 449 62 138 9 10 p 2 snw 7071 ejeniu 8
37. e to the microprocessor based design of the BE1 79M Multiple Shot Reclosing Relay many of its operational characteristics are not apparent in the block diagram The remaining information in this sec tion is focused on the software controlled features of the relay Power Up The application of operating power results in one of four states as illustrated in Figure 3 4 Depending on conditions and the RESET delay setting the interval from power application to the resultant state may be from 10 to 1000 seconds or optionally from 1 to 100 seconds When the resultant state is reached the relay fail output contacts open and the RELAY FAIL LED is extinguished 3 6 BE1 79M Functional Description 9170100990 Rev M 1 79 D757 012 4 22 91 POWER 15 APPLIED RESTORE OUTPUT 2 STATES OPEN RELAY FAIL SEC POWER LOST DURING REC SEQ IS MEMORY SAVE ENABLED IS CIRCUIT BREAKER OPEN IS POWER UP TO RECLOSE ENABLED BREAKER OPEN BEFORE RESET RECLOSE WITH FIRST CONTINUE PROGRAMMED RECLOSING RECLOSE SEQUENCE LOCKOUT Figure 3 4 Power up Flow Chart RESET A reclosing sequence may only be initiated when the relay is in RESET RESET is indicated by a front panel LED For the relay to reach RESET the controlled breaker must remain closed for the duration of the reset time delay setting If the breaker reopens prior to this time the relay will p
38. eld selectable option recogni tion dropout If RI and PI are initiated simultaneously PI takes priority If a Pilot reclosing sequence is initiated IRB has no effect DTL overrides all other inputs The function of each set of sensing contacts is described in Table 3 1 Contact Interface Contact interface circuits provide current limiting filtering and optoisolation This interfacing translates the state of the individual sensing contacts to logic levels These logic levels are entered onto the data bus via buffers for use by the microprocessor Logic Switch Logic switch S23 is a field selectable 16 position switch 0 through F that enables any combination of four functions Refer to Table 2 2 for logic switch positions and functions enabled The four functions are Memory Save Power up to Reclose Recognition Dropout and Status LED Reset e Memory Save When power is lost the relay initiates the memory circuit to store the exact point at which the reclosing sequence was interrupted Within 100 milliseconds of when power is reap plied the relay will resume the reclosing sequence Memory save function will occur ONLY if the relay was in a reclosing sequence It will not occur if the relay was in RESET RELAY FAIL or LOCKOUT e Power up to Reclose When power is lost during a RESET condition the relay initiates a first programmed reclose after power is restored if the breaker is open 52b and normal initiate RI or Pl is pre
39. ermissive input contact is open A reclose permissive input is required for a reclose sequence RECLOSING EVENT MEMORY Purpose In the normal service mode the reclosing event memory REM increments software counters to record significant events of the reclosing sequence When the relay is reset the accumulated data is transferred to and stored in a nonvolatile memory The data is retained even though power is lost Only data accumu lated prior to the last reset is retained in the non volatile memory If the relay loses power during a reclosing sequence the data accumulated during this uncompleted sequence will not be saved The REM counts and stores the cumulative number of attempts made in the following categories Instantaneous reclosures First time delayed reclosures Second time delayed reclosures Third time delayed reclosures Pilot reclosures Unsuccessful reclosures Maximum count is 999 attempts per event type Drive to Lockout events are not counted REM is not affected when the relay is in the test mode or by the position of the logic switch S23 reclose sequence memory save enable 9170100990 Rev M BE1 79M Functional Description 3 11 Data Retrieval In order to retrieve data from REM the relay must first be taken out of service and placed in the test mode Do this by setting the logic board NORMAL TEST switch see Figure 2 1 to the TEST position Then set the front panel RESET thumbwheel switch to 00 The relay is
40. f Press and release S7 There should be continuity between terminals 17 and 18 If Control Output option is or Cold Load terminals 17 and 18 will NOT have continuity Disconnect continuity tester In 60 seconds the RESET LED should light and the LOCKOUT LED should extinguish Tog gling the front panel RESET lever should extinguish the STATUS 1 2 3 and INST LEDs If automatic reset of STATUS LEDs is selected the STATUS 1 2 3 and INST LEDs will extin guish when the relay reaches RESET Place all INSTANTANEOUS TRIP switches into the BLOCK position NOTE Step 18 applies only to units with the Reclose Failure options i e Lockout and Reset options 2 5 6 or 8 Disconnect the test circuit from terminal 16 Set RECLOSE FAIL thumbwheel setting to 50 i e 5 0 seconds Press and release switch S6 K1 latch The INST and OUTPUT ENERGIZE LEDs should light In approximately 5 seconds the OUTPUT ENERGIZE LED should go out and the RECLOSE FAIL and LOCKOUT LEDs should light Check for continuity between ter minals 12 and 13 Press and release switch 57 K1 reset Wait for RESET LED to light Toggling the front panel RESET lever should extinguish the INST LED If automatic reset of STATUS LEDs is selected on logic switch 523 the STATUS INST LED will extinguish when the relay reaches RESET Reconnect the test circuit to terminal 16 NOTE Step 19 applies only to units with the Maximum Cycle opt
41. heck should NOT show conti nuity between terminals 1 and 2 Set test timer to zero Close RI switch S1 If option 1 is 2 Reclose Wait do NOT close RI Place switch S5 to the RECLOSE position terminal 15 Press and quickly release switch S6 K1 latch to simulate breaker opening The OUTPUT ENERGIZE LED should light briefly The INST STATUS LED should light and stay lit Timer should indicate 50 milliseconds or less The RESET LED should light in 60 seconds Toggling the front panel RESET lever should extinguish the INST STATUS LED Close switch S3 IRB Reset the timer Press and release switch S6 K1 latch to simulate breaker opening After a short interval the OUTPUT ENERGIZE LED should light briefly and the STATUS 1 LED should light Timer should indicate 5 40 05 seconds If the BLTC NC op tion is present a continuity check should NOT show continuity between terminals 1 and 2 If BLTC NO option is present a continuity check should show continuity between terminals 1 and 2 Reset the timer Press and release switch S6 K1 latch to simulate breaker opening After a short interval the OUTPUT ENERGIZE LED should light briefly and the STATUS 2 LED should light Timer should indicate 10 40 1 seconds Reset the timer Press and release switch S6 K1 latch After a short interval the OUTPUT ENERGIZE LED should light briefly and the STATUS 3 LED should light Timer should indi cate 15 40 15 seconds Press and release switch S6 K1
42. humbnuts and to the relay case terminals When testing circuits connected to the bottom set of case terminals the test plug is inserted with the numbers 1 through 10 facing up When using the test plug in the upper part of the relay the numbers 11 through 20 are face up It is impossible due to the construction of the test plug to insert it with the wrong orientation 9170100990 Rev M BE1 79M Maintenance 6 1 This page intentionally left blank BE1 79M Maintenance 9170100990 Rev SECTION 7 DIFFERENCE DATA TABLE OF CONTENTS SECTION 7 DIFFERENCE DATA 7 1 UEM 7 1 DIFFERENCES eni coiere d ett n eet 7 1 COMPA TIBI Ltd e tT PEU 7 1 EET 7 1 5 uu iR eie PRI Oei fe 7 3 FUNCION LM TR 7 3 ASSEMBLING ADAPTER TO 7 4 Figures Figure 7 1 External Connections tenente nna 7 3 Figure 7 2 Sensing Input 7 4 Figure 7 3 Test Plug and Adapter E 7 5 Figure 7 4 Improvised Test 7 5 Tables Table 7 1 Test Adapters dnte id esee 7 4 917
43. ied sensing voltage equal to the relay dc power supply input rating Burden per contact for non isolated sensing dependent on power supply type is listed in Table 1 1 Refer to Table 1 2 Output contacts are rated as follows Resistive 120 Vac Make break and carry 7 Aac continuously 250 Make and carry 30 Adc for 0 2 seconds carry 7 Adc continuously break 0 3 Adc 500 Make and carry 15 Adc for 0 2 seconds carry 7 Adc continuously break 0 3 Adc Inductive 120 Vac 125 Vdc 250 Break 0 3 A L R 0 04 Adjustable from 00 1 to 99 9 seconds in 0 1 second increments Accurate within 1 of setting or 0 05 seconds whichever is greater Optionally adjustable from 1 to 999 seconds in one second increments for the second and third reclose time delays Accurate within 1 of setting or 0 5 seconds whichever is greater Optionally adjustable from 0 03 to 0 99 seconds in 0 01 increments Accurate to within 0 005 seconds of setting If reclose time delay option is not specified pilot reclose time is less than 0 030 seconds Adjustable from 10 to 1 000 seconds in 10 second increments or optionally adjustable from 1 to 100 seconds in 1 second increments A setting of 00 indicates a 1000 second reset time or optionally a 100 second reset time Accurate within 1 of setting or 0 5 seconds whichever is greater Adjustable from 0 1 to 9 9 seconds in 0 1 second increments Accurate within 1 of setting or 0 05 seco
44. ight The number shown on RECLOSE TIME 1 setting equals the number of events record ed Data Retention To retain the data that is stored in memory and resume the event count proceed as follows STEP 1 Position the NORMAL TEST switch on the logic board to NORMAL STEP 2 Return all front panel controls to their normal service positions STEP 3 Return relay to service Relay will resume normal operation and the event count from that point Clearing Stored Data To clear the old data from memory before returning the relay to normal service proceed as follows STEP 1 Toggle RESET lever once This action clears memory Memory clear can be verified by keeping RECLOSE TIME at 000 and by rotating the 150 of RECLOSE TIME 3 from 0 through 5 The STATUS 3 and RESET LEDs should light at each setting STEP2 Position the NORMAL TEST switch on the logic board to NORMAL STEP 3 Return all front panel controls to their normal service position STEP 4 Return the relay to service The relay will resume normal operation and begin a new count of events 5 6 BE1 79M Tests and Adjustments 9170100990 Rev M SECTION 6 MAINTENANCE TABLE OF CONTENTS SECTION 6 MAINTENANGE cca re eh ten a lie endive 6 1 GENERAL e PU e m 6 1 et odes d turn DLE a aaa 6 1 TESTIPEUG n idee ti
45. ions Lockout and Reset options 4 6 7 or 8 Set MAX CYCLE thumbwheel setting to 020 If present set RECLOSE FAIL thumbwheel setting to 00 Press and release switch S6 K1 latch The INST and OUTPUT ENERGIZE LEDs should light In approximately 20 seconds the MAX CYCLE and LOCKOUT LEDs should light Press and release switch S7 K1 reset and wait for RESET LED to light Toggling the front panel RESET lever should extinguish the INST LED If automatic reset of STATUS LEDs is selected on logic switch 523 INST LED will extinguish when the relay reaches RE SET Reconnect the test circuit to terminal 16 NOTE Steps 20 through 23 apply only to units with option 1 special contact assignment 3 Pre lockout STEP 20 Close RI and IRB input switches STEP 21 Press and release 57 K1 reset and allow time delay to expire STEP 22 After the breaker recloses and before reset time delay expires press and release S6 K1 latch and allow time delay to expire 5 4 BE1 79M Tests and Adjustments 9170100990 Rev M 5 23 5 24 5 25 5 26 5 27 5 28 5 29 5 30 5 31 Monitor terminals 14 and 16 for continuity Repeat Step 22 until the last programmed reclose occurs When the last programmed reclose occurs terminals 14 and 16 should have continuity NOTE Step 24 applies only to units with option 1 special contact a
46. irely before placing the relay into normal service operation from the point reclose was interrupted in Step 29 This concludes the operational test procedure RECLOSING EVENT MEMORY REM Data Retrieval The following procedure is an example of retrieving data from the Reclosing Event Memory STEP 1 STEP 2 STEP 3 STEP 4 Remove the relay from service Position the NORMAL TEST switch on logic board to TEST Position RESET thumbwheels to 00 Adjust RECLOSE TIME 3 LSD thumbwheel to the desired type of event data to be retrieved Refer to Table 3 4 9170100990 Rev M BE1 79M Tests and Adjustments 5 5 STEP 5 Verify that the appropriate STATUS LEDs light The correlation between the STATUS LEDs and the RECLOSE TIME 3 LSD verify proper memory addressing STEP 6 Position RECLOSE TIME 1 thumbwheels to 000 STEP 7 Observe STATUS 3 LED and RESET LED These two LEDs guide the operator as to wheth er the RECLOSE TIME 1 thumbwheel number is less than or greater than the actual number of events stored in memory STEP 8 Begin with MSD of RECLOSE TIME and increase setting until RESET LED lights and STATUS LED goes out Setting is now greater than event count in memory Decrease setting one number STEP 9 Increase the setting on RECLOSE TIME 1 2nd MSD until RESET LED lights and then decrease the setting one number STEP 10 Increase the setting on RECLOSE TIME 1 LSD until the STATUS LED 3 and RESET LED l
47. ised isolation test and dielectric test e Page 3 2 Added footnote to Table 3 1 e Added two paragraphs beginning with Each reclose attempt e Page 3 7 Figure 3 2 corrected B e Page 3 3 Subsection entitled Instantaneous Trip Enable clarified e Manual revised to reflect software changes which introduced an additional category Unsuccessful Reclosers to the Reclose Event Memory 01 86 e Initial release BE1 79M Introduction 9170100990 Rev M CONTENTS SECTION 1 GENERAL INFORMATION 1 1 SECTION 2 HUMAN MACHINE INTERFACE 2 1 SECTION FUNCTIONAL 3 1 1 ra tede ai d n UR OM dines 4 1 SECTION 5 TESTS AND 5 5 5 1 SECTION 6 6 1 SECTION 7 DIFFERENCE 7 1 9170100990 1 79 Introduction This page intentionally left blank vi BE1 79M Introduction 9170100990 Rev M SECTION 1 GENERAL INFORMATION TABLE OF CONTENTS SECTION 1 GENERAL INFORMATION 1 1 PURPOSE ertet 1 1 APPLICATION tosta tetti i c N 1 1 MODEL AND STYLE
48. itiate input and the RESET INHIBIT LED is mutually exclusive with the PILOT LED Reclose Wait Input Option A closed reclose wait input inhibits all timers from timing All output contacts remain in the previous state unless the reclose or pilot outputs are energized prior to the input closing If the reclose or pilot outputs are energized when reclose wait is closed the outputs will open When reclose wait input opens reclosing will continue in the sequence to the next time delay or LOCKOUT The reclose wait input replaces the reclose initiate input and RI is not re quired to initiate the reclosing sequence Closing the 52b input initiates the reclosing sequence Reclose Permissive Input Option An open reclose permissive contact inhibits all front panel controlled delay timers and manual STATUS LED reset The RESET LED flashes during this condition An energized reclose or pilot output is de energized when the reclose permissive con tact opens When the reclose permissive input contact closes reclosing continues in the sequence to the next time delay or LOCKOUT A full reclose sequence one instantaneous followed by up to three time reclosures is enabled when the reclose permissive contact is closed and the 52b input contact is closed The reclose initiate input is replaced by the reclose permissive input IRB and PI are latching inputs with this option IRB and PI latch if closed when 52b input is closed and reclose p
49. losing attempts may be limited by adjusting any one of the reclose time delay settings to 000 This produces LOCKOUT when a breaker trip occurs at this point in a reclosing sequence Reclose Fail The reclose fail option allows the user to limit the duration of reclose command outputs If the breaker fails to respond to the reclose command in the allotted time the reclose fail and lockout contacts close and their associated LEDs light The first reclosure attempt in a pilot initiated reclosing sequence is continuous regardless of the reclose fail setting All reclose command outputs are continuous if the reclose fail option is not present or if the RECLOSE FAIL setting is 00 Maximum Cycle The maximum cycle option limits the duration of a reclosing sequence as determined from sequence initiation presence of 52b and RI or PI to automatic relay RESET or LOCKOUT If RESET or LOCKOUT is not reached in the allotted time the MAX CYCLE LED lights and the relay drives to LOCKOUT Block Load Tap Changer The optional block load tap changer output contacts are opened to disable automatic transformer load tap changer operations while a reclosing sequence is in progress 3 8 BE1 79M Functional Description 9170100990 Rev M RECLOSE INITIATED SEQUENCE 1ST 2ND 3RD 4TH 5TH BREAKER gt RESET
50. n b Appropriate ac source for frequency sensing A source with frequency stability of 0 00002 Hz must exhibit phase noise of less than 90 db for accurate measurement The accuracy and stability of this source is necessary as the relay precisely measures the period between positive going zero crossings of the applied waveform and responds instantaneously to the sensed condition c Hardware battery and lamp multimeter etc or method of determining that the output contacts close OPERATIONAL TEST The following procedure verifies operation of the relay STEP 1 STEP 2 CAUTION Performing the Operational Test Procedure with the relay in the NORMAL Mode will increment the reclosing event memory Prior to initiating the Operational Test Procedure record the contents of the reclosing event memory Care must be taken not to exceed output contact ratings Connect the circuit as shown in Figure 5 1 K1 is a latching relay with a set of Form B aux iliary contacts to simulate a controlled breaker If the Pilot Initiate option is not present S4 and the connections to terminals 8 and 14 are not needed Press and release switch S7 K1 reset to assure that K1 auxiliary contacts are open breaker closed Set thumbwheel switches as indicated below RESET Note 1 60 0 seconds 06 setting RECLOSE TIME Note 2 and Note 3 1 05 0 seconds 050 setting 2 10 0 seconds 100 setting 3 15 0 seconds 150 setting RECLOSE F
51. nds whichever is greater Adjustable from 1 to 1000 seconds in 1 second increments Accurate within 1 of setting or 0 5 seconds whichever is greater 40 40 F to 70 C 158 F 65 85 F to 100 C 212 F BE1 79M General Information 9170100990 Rev M Radio Frequency Interference RFI Shock Vibration Isolation Surge Withstand Capability Oscillatory Fast Transient Impulse Test GOST R Certification Weight Case Size 9170100990 Rev M Maintains proper operation when tested for interference in accordance with IECC C37 90 2 1989 Trial Use Standard Withstand Capability of Relay Systems to Radiated Electromagnetic Interference from Transceivers and 99 1188 field tested using a 5 watt hand held transceiver operating at random frequencies centered around 144 MHz and 440 MHz with the antenna located 6 inches from the relay in both horizontal and vertical planes In standard tests the relay has withstood 15g in each of three mutually perpendicular planes without structural damage or degradation of performance In standard tests the relay has withstood 2g in each of three mutually perpendicular planes swept over the range of 10 to 500 Hz for six sweeps 15 minutes each sweep without structural damage or degradation of performance At terminals 1 through 4 and 11 through 20 the maximum voltage applied must be no greater than 300 V because of the MOV suppressors employed at these locations At
52. ply only to units with the Instantaneous Trip Enable option Control Outputs A C D or Set RECLOSE TIME 1 2 and 3 thumbwheel switches to 010 If reclose time delay option is A7 set RECLOSE TIME 2 and 3 to 001 Verify that the RESET LED is lit Simultaneously place all INSTANTANEOUS TRIP toggle switches in the ENABLE position Verify that switch NOTE Step 16 should be performed in less than 60 seconds to prevent the relay from going into RESET 23 IRB is still open reference step 11 Prepare for continuous continuity testing between terminals 17 and 18 Initial test should indi cate continuity if NO option is selected If NC option is selected all continuity indications will be the opposite of that described for this step 9170100990 Rev M BE1 79M Tests and Adjustments 5 3 5 17 5 18 5 19 a Press and release 56 The INST LED should light and there should be continuity between terminals 17 and 18 b Press and release S6 In 1 second the STATUS 1 LED should light and there should be continuity between terminals 17 and 18 c Press and release S6 In 1 second the STATUS 2 LED should light and there should be continuity between terminals 17 and 18 d Press and release S6 In 1 second the STATUS 3 LED should light and continuity between terminals 17 and 18 should exist e Press and release S6 The LOCKOUT LED should light
53. r has opened to de energize the line Refer to Section 1 for major factors to consider when establishing a reclosing philosophy FUNCTIONAL DESCRIPTION The following paragraphs describe the Relay circuit functions illustrated in Figure 3 1 Contact Sensing Depending on style contact sensing current is obtained either directly from the Multiple Shot Reclosing Relay or from any power source with a voltage rating the same as the Relay power supply dc input vol tage When the Relay provides the contact sensing current isolated contact sensing is employed When another power source provides the contact sensing current non isolated contact sensing is employed Relays with a Y type wide range power supply have a field selectable link J2 on the contact sensing board to match the nominal power supply input voltage of 48 Vdc or 125 Vdc Selection must be done at the time of installation and prior to application of power This option is factory set for 125 Vdc Figure 3 2 shows the link set to the 125 Vdc position Table 3 1 Function of Sensing Contacts ince Pilot Initiate Form A contact which when closed initiates a pilot reclosing Optional Optional sequence This contact is also required during the Note A1 sequence to initiate each reclose attempt Breaker 52b Form B auxiliary contact of the controlled breaker utilized to determine the state of the breaker Form A contact which when closed initiates a normal
54. re 7 4 Improvised Test Setup BE1 79M D806 010 6 19 91 RETAINER SCREW TYPICAL 4 P LACES BE1 79M 0806 012 6 24 91 9170100990 Rev BE1 79M Difference Data 7 5 This page intentionally left blank 7 6 BE1 79M Difference Data 9170100990 Rev M gt Basler Electric 12570 State Route 143 Highland IL 62249 1074 USA www basler com info 9 basler com Phone 1 618 654 2341 Fax 1 618 654 2351
55. reclose output contacts in this sequence e Pilot Initiated Sequence Initiated by the 52b and PI signals this sequence produces one instan taneous reclosing attempt through the pilot output contacts and up to two time delayed reclosing attempts through the reclose output contacts The time delayed reclosing attempts are controlled by RECLOSE TIME delay settings 2 and 3 RECLOSE TIME delay setting 1 is bypassed in this sequence unless set to 000 in which case the relay drives to LOCKOUT The IRB signal has no influence on this sequence Each reclose attempt requires the presence of either the RI or PI contact input before the respective reclose sequence can be performed The RI input must also be present prior to each individual time delay When a Pilot Initiated reclose sequence has been started by the presence of the PI input the associated closure of the reclose output relay also requires the presence of the PI input If the breaker re opens after the instantaneous closure of the reclose output relay then the RI or PI input must be present in order for the second reclose time delay to occur The RI or PI input must also be present for the third time delay The flow chart of Figure 3 6 is a simplified representation of reclosing sequence initiation and progres sion In actual operation all reclosing attempts are continuous as indicated by the dashed lines unless limited by the reclose fail or maximum cycle options The number of rec
56. reclosing Reclose Initiate sequence This contact is also required during the sequence to Note A2 initiate the individual time delays and subsequent reclose output closures Instantaneous Form A contact which when closed cause the instantaneous Reclose Bypass reclosure attempt to be bypassed Form A contact which when closed instantaneously drives the Multiple Shot Reclosing Relay into lockout Drive to Lockout NOTES f the appropriate initiate contact RI or Pl is not received within the corresponding period the relay is forced to the lockout state Input is Reset Inhibit RES INH if option 1 is 1 A2 Input is Reclose Wait REC WAIT if option 1 is 2 Input is Reclose Permissive RP if option 1 is 4 9170100990 Rev M BE1 79M Functional Description 3 1 NOILdO 41 SAISSINYAd 3S0 193 SI L6 LZ 0L 900 7120 0162 1398 1 1 dvi avol 95018 SNOANVLNVLSNI 1 01 484 8507084 3SO 1933 YOLINOW LIGIHNI 19584 1 Z SI 1 NOILdO Al LIVM 284 3501999 SI LAdNI 3O1V109S33 3SV1TOA 5501 ZrwYutow 2 lt HOSS3OOHdOMWDIN JAYS 3S0 103 OL AYOWAN 148544 031 SNLYLS 1 NOILINDOOSY 2501084 HOLIMS 21901 3ZIOH3N3 85
57. red to earth ground using the ground terminal on the rear of the unit It is recommended to use a separate ground lead to the ground bus for each relay DIELECTRIC TEST In accordance with IEC 255 5 and ANSI IEEE C37 90 1989 one minute dielectric high potential tests up to 2500 Vac 45 65 Hz may be performed except across open contacts which may be tested up to 1500 Vac Note that this device employs decoupling capacitors to ground from terminals 3 4 5 6 7 8 9 and 10 At 2500 Vac a leakage current of approximately 5 mA per terminal is to be expected MOUNTING Because the relay is of solid state design it does not have to be mounted vertically Any convenient mounting angle may be chosen Relay outline dimensions and panel drilling diagrams are shown in Figures 4 1 through 4 7 CONNECTIONS Incorrect wiring may result in damage to the relay Be sure to check model and style number against the options listed in the Style Number Identification Chart before connecting and energizing a particular relay NOTE Be sure the relay case is hard wired to earth ground with no smaller than 12 AWG copper wire attached to the ground terminal on the rear of the relay case When the relay is configured in a system with other protective devices it is recommended to use a separate lead to the ground bus from each relay Connections should be made with minimum wire size of 14 AWG except as noted for the ground wire Typical e
58. roceed to the next reclosing attempt If the number of programmed reclosing attempts has been exhausted the relay will drive to LOCKOUT LOCKOUT LOCKOUT a state inhibiting relay operation is produced by any of the following conditions Number of breaker openings exceeds the number of programmed reclosure attempts Closure of the drive to lockout input contacts Reclose failure Duration of a reclosing sequence exceeds the maximum cycle setting 9170100990 Rev M BE1 79M Functional Description 3 7 The lockout output contacts close and the LOCKOUT LED lights to indicate lockout LOCKOUT is termi nated when the controlled breaker is closed manually or by other means and remains closed for the duration of the reset time delay setting Reclosing Sequences The BE1 79M Multiple Shot Reclosing Relay can generate three types of reclosing sequences Each type is described in the following paragraphs and illustrated in Figure 3 5 and Figure 3 6 Reclose Initiated Sequence Initiated by the 52b and RI signals this sequence produces in stantaneous reclosing attempt followed by up to three time delayed reclosing attempts All reclose command outputs occur through the reclose output contacts in this sequence Reclose Initiated Sequence with Instantaneous Reclose Bypass Initiated by the 52b RI and IRB signals this sequence produces up to three time delayed reclosing attempts All reclose command outputs occur through the
59. sent e Recognition Dropout This function replaces the standard recognition dropout time of 17 5 milli seconds The relay initiates a reclosing sequence if a 52b occurs within 200 milliseconds of an RI or PI Figure 3 3 illustrates the recognition dropout timing relationship e Status LED Reset After a reclosing sequence the relay initiates STATUS LED reset INST 1 2 3 and PILOT when the relay reaches RESET 9170100990 Rev M BE1 79M Functional Description 3 3 Switch S23 on the edge of the contact sensing board is accessible by removing the drawout cradle from the case When S23 is changed to select different functions the relay must be powered down and power reapplied to enable selected functions eee 52b EE RI Pl 1 1 1 I RECOGNITION m DROPOUT TIME D806 008 6 17 91 Figure 3 3 Recognition Dropout Timing Thumbwheels Front panel thumbwheel switches allow the user to program various time settings and limit reclosure attempts The switches select individual diodes producing binary coded decimal words which are read by the microprocessor Instantaneous Trip Enable Optional Five front panel toggle switches allow the user to select ENABLE or BLOCK instantaneous tripping of the circuit breaker Instantaneous tripping may be enabled or disabled for any single trip or combination of trips The microprocessor interrogates the individual switches at appropriate times
60. should go out and the RESET LED should light Toggling the front panel RESET lever should extinguish the INST LED If automatic reset of STATUS LEDs is se lected on logic switch S23 the STATUS INST LED will extinguish when the relay reaches RESET Change RECLOSE TIME 1 thumbwheel setting to 050 NOTE Steps 13 and 14 apply only to units with the Pilot Initiate option Lockout and Reset 3 5 7 or 8 Reset the timer Open switch 51 RI If option 1 is 4 Reclose Permissive do NOT open 51 Close switch S4 Pl Place switch S5 to the PILOT position terminal 14 Press and release switch S6 K1 latch The PILOT LED should light The timer should indicate 50 milliseconds or less If reclose time delay option is A8 PILOT TIME delay will be 0 99 0 005 seconds Before the relay reaches RESET reset the timer Place switch S5 to the RECLOSE position terminal 15 Press and release switch S6 K1 latch After 10 seconds the OUTPUT ENERG IZE LED should light briefly and the STATUS 2 LED should light The timer should indicate 10 10 seconds In 60 seconds the RESET LED should light Toggling the front panel RESET lever should extinguish the STATUS 2 and PILOT LEDs If automatic reset of STATUS LEDs is selected on logic switch S23 the STATUS 2 and PILOT LEDs will extinguish when the relay reaches RESET Open switch 54 PI Close switch 51 RI If option 1 is 2 Reclose Wait do NOT close 51 NOTE Steps 15 through 17 ap
61. ssignment 1 Reset Inhibit Repeat Steps 20 and 21 but close the Reset Inhibit input Pl before the reset time delay expires Verify RESET INHIBIT LED lights when reset inhibit input is closed After 60 seconds verify relay is NOT RESET Open Reset Inhibit input and verify relay advances to reset after the remaining time expires from the point reset was interrupted in Step 24 and RESET INHIBIT LED extinguishes NOTE Step 26 applies only to units with option 1 special contact assignment 2 Rec lose Wait Initially leave Reclose Wait input RI open Repeat Steps 20 through 22 but close the Reclose Wait RI input while reclose time delay is timing Verify that after five seconds expires no reclose occurs Open Reclose Wait input and verify relay recloses after the remaining time expires from the point reclose was interrupted in Step 26 NOTE Step 29 applies only to units with option 1 special contact assignment 4 Rec lose Permissive Repeat Steps 20 and 21 but before reclose time delay expires open the Reclose Permissive RI input Verify that RESET LED flashes and no reclose occurs after reclose time delay expires Close Reclose Permissive RI input and verify relay recloses after the remaining time expires CAUTION Performing the Operational Test Procedure has incremented the reclosing event memory Record the contents of the reclosing event memory or clear the memory ent
62. stem grid Higher Line Loading decreases likelihood of loss of line APPLICATION Four major factors should be considered when establishing a reclosing philosophy Desired number of reclosure attempts e Time delay between breaker opening and reclosure e Supervisory control e System coordination The first major factor is the desired number of reclosure attempts Where most faults are attributable to heavy tree exposure as in distribution networks multiple reclosure attempts are common This is possible because of low voltage levels and is desirable considering customer inconvenience during outages The BE1 79M is programmable for up to four reclosure attempts per sequence This allows tailoring of the reclosing sequence to the specific needs of the circuit The second major factor is the time delay between breaker opening and reclosure On subtransmission and distribution networks it is necessary to ensure that motors are no longer running and that local generation is off line prior to attempting reclosure At the same time a rapid reclosure minimizes damage ionization and system shock in transmission networks After the first reclosure attempt additional attempts are generally delayed to allow for de ionization of the interrupter The BE1 79M incorporates one instantaneous reclosing attempt with bypass capability and up to three individually adjustable time delayed reclosing attempts A third major factor to be consi
63. sure attempts Individually thumbwheel adjustable from 00 1 to 99 9 seconds in 00 1 second increments or if reclose time delay option is A7 second and third RECLOSE TIME thumbwheels are adjustable from 001 to 999 seconds in one second increments A setting of 000 on a RECLOSE TIME thumbwheel indicates the reclosing attempt is not desired and sends the relay to lockout at this point in the reclosing sequence RESET Control Establishes automatic reset interval Thumbwheel adjustable from 10 to 1000 seconds in 10 second increments Optionally adjustable from 1 to 100 seconds in 1 second increments A setting of 00 indicates a reset time of 1000 seconds or optionally 100 seconds RESET Switch Momentary toggle switch which extinguishes STATUS LEDs except LOCKOUT Accessible by linkage which extends through bottom of front cover RESET LED ON when relay is in RESET PILOT or RESET INHIBIT With PILOT option LED is ON when pilot output relay coil LED Optional is energized Remains ON until activation of manual RESET lever power loss or when relay reaches RESET if STATUS LED reset is optionally selected by logic switch 23 With RESET INHIBIT option LED is ON when reset inhibit input is closed POWER LED ON when the power supply is delivering a nominal x12 to internal circuitry ENERGIZE LED ON when reclose output relay coil is energized RELAY FAIL LED ON when relay is not operable Also ON during power
64. the remaining terminals 2 500 Vac at 60 Hz for one minute may be applied in accordance with IEC 255 5 and ANSI IEEE C37 90 1989 Dielectric Test Qualified to ANSI IEEE C37 90 1 1989 Standard Surge Withstand Capability SWC Tests for Protective Relays and Relay Systems Qualified to ANSI IEEE C37 90 1 1989 Standard Surge Withstand Capability SWC Tests for Protective Relays and Relay Systems Qualified to IEC 255 5 GOST R certified per the relevant standards of Gosstandart of Russia 13 pounds 1 BE1 79M General Information 1 5 Table 1 1 Burden Nominal Per Non Isolated Sensing Contact Power Supply Type Nominal Burden Per Input NOTE For type Y Power supply use burden for type K or type J power supply depending on nominal operating voltage Table 1 2 Power Supplies Burden at Nominal K Mid Range 48 24 to 150 J Mid Range 125 24 to 150 5 3 W g 120 Vac 90 to 132 Vac 13 2 L Low Range 24 12 to 32 48 24 to 150 Vde 5 4W 250 Vde 62 to 280 5 4 W 2 High Range 240 Vac 90 to 270 Vac 14 1 Type L power supply may initially require 14 Vdc to begin operating Once operating the voltage may be reduced to 12 Vdc and operation will continue 1 6 BE1 79M General Information 9170100990 Rev M SECTION 2 HUMAN MACHINE INTERFACE TABLE OF CONTENTS SECTION 2 HUMAN MACHINE INTERFACE 2 1 CONTROLS AND
65. to determine the desired state of the instantaneous trip enable output contacts When LOCKOUT or RESET occurs and normally open ITE the instantaneous trip enable output contacts are closed while the breaker is closed if instantaneous trip enable switch 1 is in the enable position Microprocessor The BE1 79M uses an 8 bit low power CMOS microprocessor which performs all timing and decision making functions Program Monitor Operation of the microprocessor is monitored by the program monitor In normal operation the micropro cessor outputs pulses at regular intervals If these pulses are disrupted the program monitor stops microprocessor operation and forces the output buffers to high impedance This causes all output con tacts to assume their normal states and lights the RELAY FAIL LED If this situation is the result of something other than hardware failure it may be remedied by momentarily interrupting operating power Power Loss Detector The power loss detector circuit compares the output of the power supply to a reference voltage If the power supply output falls below the reference voltage the power loss detector circuit sends an interrupt signal to the microprocessor Upon receipt of this signal the microprocessor stores status data in the non volatile reclose sequence memory This data indicates the progression of a reclosing sequence or state of the Multiple Shot Reclosing Relay at the time power was lost At this point the rel
66. v M BE1 79M Functional Description 3 9 1088072 4 MHL NGOS 1 BALLON 886975 Figure 3 6 Reclosing Flow Chart 9170100990 Rev M 79M Functional Description BE1 3 10 Control Outputs and Special Contact Assignments Control output contacts and special contact assignments are options controlled by software The functions of these contacts are as follows T E Cold Load Normally Open Option The instantaneous trip enable output will remain open in the LOCKOUT condition Thus when a breaker is manually closed from LOCKOUT the output will be open until the relay goes to reset The normal option NOT I T E cold load has the instantaneous trip enable output closed immediately after the breaker is manually closed e Pre lockout Alarm Output Normally Open Option The pre lockout alarm output will close imme diately whenever the relay is attempting the last programmed reclose attempt This output is mutually exclusive with the pilot reclose output This output will remain closed until the relay reaches RESET e Reset Inhibit Input Option A closed reset inhibit input inhibits the reset timer from timing and lights the RESET INHIBIT LED When the input contact opens the reset timer continues timing from the point of interruption and the RESET INHIBIT LED extinguishes The reset inhibit input is mutually exclusive with the pilot in
67. xternal connections are shown in Figures 4 8 through 4 10 Internal connections are shown in Figure 4 11 9170100990 Rev M BE1 79M Installation 4 1 5 69 2 144 5 2 84 Be 72 1 8 25 8 63 209 6 219 1 4 13 4 31 104 8 109 5 25 6 35 DIA ERN 4 5 77 0 aes 154 0 MOUNT RELAY USING 4 10 SCREWS NUMBERS IN PARENTHESES INDICATE METRIC DIMENSIONS MILLIMETERS ALL OTHER DIMENSIONS ARE IN INCHES Figure 4 1 Panel Drilling Diagram Flush Mounting 4 2 BE1 79M Installation 9170100990 Rev 6 65 x 168 91 9 32 236 73 P0046 06 Figure 4 2 S1 Case Outline Dimensions Front View 9170100990 Rev M BE1 79M Installation 4 3 10 32 SCREWS 046 07 2 195 MOUNTING PANEL Figure 4 3 S1 Case Double Ended Semi Flush Mounting Side View 4 4 BE1 79M Installation 9170100990 Rev MOUN IING PANEL 5 16 18 STUD 2 PLACES 25 RET 6 4 DETAIL A A SHOWING THE ADDITION OF WASHERS OVER THE BOSS TO TIGHTEN THE RELAY AGAINST THE PANEL MOUNTING PANEL 10 32 SCREWS P0046 08 TERMINAL EXTENSION TYP FOR DETAILED INSTRUCTIONS SEE THE TERMINAL PROJECTION MOUNTING KIT SUPPLIED Figure 4 4 S1 Case Double Ended Projection Mounting Side View 9170100990 Rev M BE1 79M Installation 4 5 5 25

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