ABB REL 301 Instruction Manual Download

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Summary of Contents for REL 301

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Page 2: ...nce and all details and variations of this equipment do not pur port to be covered by these instructions If further information is desired by purchaser regarding a particular in stallation operation o...

Page 3: ...air Repair work is done most satisfactorily at the factory When returning equipment contact your field sales representative for RMR authorization All equipment should be returned in the original packi...

Page 4: ...OVERCURRENT MEASUREMENTS UNDERVOLTAGE MEASUREMENTS 3 2 CALCULATION OF REL 301 302 SETTINGS 3 2 3 3 REQUIRED SETTINGS APPLICATIONS 3 7 3 4 RECLOSE INITIATION MODE PROGRAMMING 3 12 SECTION 4 INSTALLATIO...

Page 5: ...LOGIC SYSTEM DIAGRAM 2 30 LOSS OF CURRENT MONITORING LOGIC 2 30 OVERCURRENT SUPERVISION 2 31 INSTANTANEOUS OVERCURRENT HIGHSET TRIP LOGIC 2 31 REL 301 302 CLOSE INTO FAULT TRIP CIFT LOGIC 2 32 REL 301...

Page 6: ...GROUND TEST 5 22 A GROUND TEST DUAL POLARIZING 5 23 TABLES PAGE SECTION 2 PHASE AND GROUND SETTINGS 5 TABLES 2 4 2 5 SECTION 3 TRIP TIME CONSTANTS FOR CURVES 3 14 RECLOSING INITIATION MODE PROGRAMMING...

Page 7: ...phase fault distance trip performance by modifying the algorithms calculation method 1 3 Modified LED target coordination with stored target data for faulted phases 1 4 Modified the performance of the...

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Page 9: ...ode Line voltage current and phase angle monitoring Selectable polarizing for directional overcurrent ground units zero sequence nega tive sequence and dual Programmable Reclose initiation and reclose...

Page 10: ...ne Dead Bus Dead Line Live Bus logic Synchronism check 120 Volt phase to phase synchronism voltage input reference VS VSR Figure 4 2 1 3 REL 301 302 CONSTRUCTION All of the relay circuitry with the ex...

Page 11: ...1 Version 1 11 or 40 386 12 Version 1 1 for details Man machine interface LCD display module Optional consisting of a 2 line 16 character per line liquid crystal display LCD four pushbuttons for setti...

Page 12: ...compensation is performed High set instantaneous overcurrent and Zone1 distance unit tests are executed This will speed up tripping by as much as one cycle for high current close in faults Instantaneo...

Page 13: ...of the RAM data memory d Non volatile RAM Check All front panel entered constants settings are stored in non volatile RAM in three identical arrays These arrays are continuously checked by the progra...

Page 14: ...ing Speed from fault detection to trip contact close 60 Hz ac Voltage VLN ac Current In Rated Frequency Maximum Permissible ac Voltage Thermal Rating Continuous 10 Second Maximum Permissible ac Curren...

Page 15: ...5 876 149 mm Depth 6 626 168 mm Weight 24 lb 16 kg For Horizontal Mount 19 inch adapter plate 1 6 5 Environmental and Type Test Data Ambient Temperature Range For Operation 20 C to 60 C For Storage 4...

Page 16: ...check voltage T None N PILOT SYSTEM Pilot REL302 P Non Pilot REL 301 N PROGRAMMABLE CONTACT OUTPUTS 5 Contacts including one trip rated contact 5 None N COMMUNICATIONS PORT Flexible PONI Rear mounted...

Page 17: ...I L 40 386 3 1 10 10 94 2682F39 Sheet 1 of 2 Sub 2 Figure 1 2 REL 301 302 Layout Vertical...

Page 18: ...I L 40 386 3 10 94 1 11 2682F39 Sheet 2 of 2 Sub 2 Figure 1 3 REL 301 302 Layout Horizontal...

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Page 21: ...ound Disturbance in V or Mode Fault Relaying Calculations Zone1 and Pilot Zone Pilot Logic and Channel Control No Fault for 3 Cycles Mode Background Operator Panel Interface Hardware Self Checks N Y N...

Page 22: ...nction with the T3 trip func tion chosen to coordinate with adjacent terminal Zone2 timing The forward sensing option produces time delayed backup to other devices sensing forward faults Blinder measu...

Page 23: ...lculation of V2 magnitude and angle is likely to be incorrect in this application causing NSEQ polarization to give false directional sense see Section 2 4 11 2 2 2 Three Phase Fault Three phase 3 fau...

Page 24: ...d relay S which is in series with each trip contact in the tripping circuits The S relay will pick up if the trip current is higher than 0 5 Amp The operation of the S contact will turn on the breaker...

Page 25: ...tput satisfy AND 18 as shown in Figure 2 6 Similar operation occurs for Zone2 single phase to ground faults The Zone2G unit sees the fault and operates This plus the operation of the IOM FDOG and T2G...

Page 26: ...e Z3G unit is also supervised by the signal of FDOG when it is set for forward looking or by the signal of RDOG when it is set for reverse looking via logic OR 171B AND 171C or AND 171D as shown in Fi...

Page 27: ...l see the fault since they are set to overreach High speed trip will be performed HST signal operates the instanta neous reclosing scheme The breaker recloses and stays closed if the fault has been is...

Page 28: ...ing the LOP Blk LOPB to YES it is the intent to block all distance units from tripping should LOP condition exist However under a special system condition refer to Figure 2 11 both circuits are energi...

Page 29: ...H and IOH are forward directional and set high to detect those faults which occur in the Zone1 therefore their tripping will occur via OR 2 for HST as shown in Figure 2 14 These high set trip function...

Page 30: ...ound Z2G picks up and satisfies the third input to AND 25 via OR 6 However the signal from AND 24 is negated to AND 25 therefore AND 25 should have no output until the re mote end 3 pole trips At this...

Page 31: ...0 to 90 The sensitivity of this element is 3I0 5 and Ip 0 1 Amps 2 4 12 Instantaneous Forward Directional Overcurrent FDOG The instantaneous forward directional overcurrent ground function FDOG is a d...

Page 32: ...15 Output Contact Test A Push to Close feature is included in order to check all output relay contacts which include TRIP BFI RI2 RB AL1 AL2 GS Carrier Send Pilot Carrier Stop Pilot and each separate...

Page 33: ...tor generator set instability following delayed clearing on an external fault The Zone1 relay in all cases identified the fault location and type correctly and responded much later to the swing condit...

Page 34: ...systems OSC Date Zone2 Zone3 Flt Data Trip FDOG Time longer than 3 cycles Pilot Pilot G 150 overreach the next bus Zone1 Zone1G 80 of the protected line Zone3 Zone3G 100 of the reversed line Zone3 Rev...

Page 35: ...igure 2 20 The pilot phase and or pilot ground function s can be disabled by setting the Pilot and or Pilot G to the OUT position The POTT and Simplified Unblocking schemes include the following kinds...

Page 36: ...SEND indicator will be displayed after the breaker trips and the frequency shifts to trip or unblocking by the transmitter during the fault The memorized RX Ch1 indicator will be displayed after the...

Page 37: ...Pilot and PLTG are set to overreach The pilot channel is a frequen cy shift type device and the transmitter frequency should be different at each terminal its signal may be passed through metallic wi...

Page 38: ...ional display SystType should be set at the Blocking position a Tripping Logic Figure 2 24 1 For a forward internal fault the local pilot relay Pilot and or PLTG sees the fault output signal of OR 40...

Page 39: ...cy to trip falsely if the carrier start unit resets faster than the pilot trip unit The 0 50 ms timer between the OR 41 and AND 51 holds the carrier signal for 50 ms after the carrier start units have...

Page 40: ...unit RDOG The Reverse Block logic is as shown in Figure 2 31 At terminal A the RDOG disables the PLTG FDOG trip key functions via AND 35 and AND 30 At terminal B it will receive no carrier signal for...

Page 41: ...detec tion Zone3 Z3G and RDOG supply this requirement 2 5 5 3 terminal Line Application For a 3 terminal OUT application since the frequency of the 3 transmitters are the same any one transmitter star...

Page 42: ...condition c POTT Weakfeed For POTT and unblocking schemes at the weak source terminal the Zone3 Z3G distance relays should be set for reverse looking and the undervoltage units LVA LVB LVC should be u...

Page 43: ...of the functions described in this section can be directed single or combined to the programmable contact outputs Refer to Section 4 10 for further details 2 7 FAULT DATA The REL 301 302 system saves...

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Page 45: ...Zone3 set in reverse direction NOTE ZoneX G TRIP DIRECTION Reach ZoneXG R NON TRIP Reach Z2 Zone1G R Zone2G R FDOG RDOG jX Zone2 G Figure 2 2 Mho Characteristic for Phase Ground Faults Z3 Z1 Ang Pos...

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Page 47: ...e more than two 2 inputs OR INPUTS A B OUTPUT INPUTS OUTPUT A B 0 0 I I 0 I 0 I 0 I I I ELECTROMECHANICAL CONTACT EQUIVALENT SIGNAL INPUT WILL PRODUCE AN OUTPUT ALL INPUTS PRODUCE AN OUTPUT A B INCLUS...

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Page 50: ...I L 40 386 3 10 94 2 29 9655A81 Sub 1 Figure 2 9 Inverse Time Overcurrent Ground Backup Logic Figure 2 10 Loss of Potential Logic 9655A82 Sub 3...

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Page 52: ...I L 40 386 3 10 94 2 31 Figure 2 14 Instantaneous Overcurrent Highset Trip Logic Figure 2 13 Overcurrent Supervision 9658A85 Sub 1 9657A58 Sub 1...

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Page 58: ...I L 40 386 3 10 94 2 37 Figure 2 25 PLTG Supplemented by FDOG 9657A65 Sub 2 Figure 2 26 Power Reversed on POTT Unblocking Schemes 9654A17 Sub 1...

Page 59: ...I L 40 386 3 2 38 10 94 Figure 2 27 Unequal Pole Closing on Fault 9654A29 Sub 1 Figure 2 28 Additional Logic for POTT Unblocking Schemes on 3 Terminal Line Application 9654A30 Sub 1...

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Page 61: ...I L 40 386 3 2 40 10 94 1501B84 Sub 6 Figure 2 31 Reversible Zone3 Phase and Ground Reverse Block Logic...

Page 62: ...I L 40 386 3 10 94 2 41 Figure 2 32 CO 2 Curve Characteristics 619596 Sub 2...

Page 63: ...I L 40 386 3 2 42 10 94 Figure 2 33 CO 5 Curve Characteristic 619597 Sub 2...

Page 64: ...I L 40 386 3 10 94 2 43 Figure 2 34 CO 6 Curve Characteristic 619598 Sub 2...

Page 65: ...I L 40 386 3 2 44 10 94 Figure 2 35 CO 7 Curve Characteristic 619599 Sub 2...

Page 66: ...I L 40 386 3 10 94 2 45 Figure 2 36 CO 8 Curve Characteristic 619600 Sub 2...

Page 67: ...I L 40 386 3 2 46 10 94 Figure 2 37 CO 9 Curve Characteristic 619601 Sub 2...

Page 68: ...I L 40 386 3 10 94 2 47 Figure 2 38 CO 11 Curve Characteristic 619602 Sub 2...

Page 69: ...urrent units IAL IBL ICL for Load Loss Trip and Close Into Fault Trip with one setting Low I One ground overcurrent unit 3I0s for Loss Of Current monitoring Three non directional medium set overcurren...

Page 70: ...otential and Weakfeed Trip REL 302 only supervision with one setting Low V 40 to 60 Vrms in 1 Volt steps OHMS PER UNIT DISTANCE x Dist For fault locator measurement 0 300 1 500 in 0 001 Ohms per Dista...

Page 71: ...date a wide variety of system components and configurations However the selection of each setting has to be carefully considered if the maximum fault current is 200 Amperes secondary or above If the m...

Page 72: ...roduce a Zone1 time delay T1 of one or two cycles and using the 80 percent Zone1 reach calculation 3 2 3 Distance Unit Reverse Reach Settings Ground distance units in the REL 301 302 have a reverse re...

Page 73: ...ease its impedance by 30 then the Zone3 reach setting should be Zone3 6 25 x 1 3 x 240 600 19 and Zone3 G 19 NOTE Zone3 and Zone3 G can be set for different values if the applica tion is required 3 2...

Page 74: ...ttings OS Inner and OS Outer The requirements for setting the blinder units are Inner blinder must be set to accommodate maximum fault resistance for internal 3 phase fault Inner blinder should not op...

Page 75: ...eparation must however be based on the fastest out of step swing expected A 50 ms interval is inherent in the out of step sensing logic and the outer blinder must operate 50 ms or more ahead of the in...

Page 76: ...est local 21P 21NP pickup time Where channel time includes the transmitter and receiver times and the times which occur between these devices e g wave propagation interfacing relays etc For REL 302 fa...

Page 77: ...volts It has no effect on the protective relaying system For example set VT Ratio 600 3 3 5 Frequency Setting Freq Should be selected to match the power system operating frequency For example select...

Page 78: ...al 85CO input and controls the operation of pilot logic tripping and reclosing initiation The absence of ei ther signal will disable the pilot system logic The Pilot setting can be set either locally...

Page 79: ...ogic cannot produce a trip output 3 3 18 Zone3 Direction Setting Zone3 Zone3 and Zone3 G can be selected to be forward looking or reverse looking by set ting the Zone3 Zone3 forward or reverse setting...

Page 80: ...range is 0 5 to 4 0 amperes in 0 5 steps In general the current level setting criteria is IFmin 2 GB Pickup 2 x Max Residual 3I0 where IFmin Minimum ground fault current for a fault two buses away For...

Page 81: ...line side potential is used to sup ply the relay 3 3 26 Load Loss Trip Setting LL Trip Set LL Trip to YES FDOG or NO where YES LL Trip trip with Z2 supervision FDOG LL Trip with both Z2 and FDOG supe...

Page 82: ...1 For Non pilot and Pilot Systems 1 Select RI Type OFF 1PR 2PR or 3PR See Table 3 2 2 Use one of the two RI 1 or RI 2 output contacts for the reclosing initiation circuit 3 Select one or all of the F...

Page 83: ...Other Faults no reclosing 2PR G RI 1 RI 2 contacts close 3 Faults no reclosing 3PR All Faults RI 1 RI 2 contacts close TABLE 3 1 TRIP TIME CONSTANTS FOR CURVES CURVE T0 K C P R C02 111 99 735 00 0 67...

Page 84: ...Open all FT switches completely Do Not Touch the outer contacts of any FT 10 switch they may be energized c Release frame latches by pushing the top and bottom latches inward towards the center of th...

Page 85: ...Terminals TB3 11 TB3 12 Terminals TB3 13 TB3 14 Terminals TB3 15 TB3 16 Terminals TB3 17 TB3 18 Terminals TB3 19 TB3 20 Terminals TB3 21 TB3 22 Terminals TB3 23 TB3 24 Terminals TB3 15 TB3 26 Terminal...

Page 86: ...comes with LEDs on the front panel IN SERVICE LED should be on all other indicators are off in normal conditions but after a trip the ones related to the trip blink If a second trip occurs the LEDs r...

Page 87: ...natively be tween the first and last characters on the second line At this point other values for the same function can be scrolled through by depressing the LOWER or RAISE push button When the desire...

Page 88: ...e system trips again the original L Flt information is transferred to the P Flt memory The latest trip informa tion is stored in the L Flt memory and the L Flt related LEDs double blink If Flt Data is...

Page 89: ...d Analog Input Circuit bit 4 Normal ly the test mode should show For reference the binary to hexadecimal conversion is shown below Right HEX Digit 3 2 1 0 Left HEX Digit 7 6 5 4 BINARY REPRESENTATION...

Page 90: ...g the FT switch red handles 4 5 JUMPER CONTROLS All jumpers are set at the factory the customer normally does not need to move the jumpers Refer to Tables 5 1 5 2 and 5 3 for the recommended jumper po...

Page 91: ...able in two styles One is identified by a 25 pin DB 25S fe male connector it is usually black and has a single data comm rate of 1200 bps The second style is identified by a 9 pin DB 9P male connector...

Page 92: ...bles One additional piece of hardware that is required in some applications is a null mo dem Null modem s function is to connect the transmit line TXD pin 2 of a 25 pin connector by RS 232C standard t...

Page 93: ...ns the problem remains try to remove the power from the relay and apply it again If the communication still fails several attempts the communica tion board needs to be serviced 4 8 SIXTEEN FAULT TARGE...

Page 94: ...and a dropout timer can also be individually set for each programmable contact output Programming the output contacts is made via RCP and requires the password to be entered An example of the program...

Page 95: ...ogic Input Logic True T or Logic Negative F Refer to Table 4 4 for a description of the functions REL 301 302 PROG CONTACTS Contact C P P 3 S 2 E P S F A I Z Z Z Z L L I E O R T C C 1 I Z Z C L W T D...

Page 96: ...4 1 REL 301 302 Terminals Dtp drawing 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 2 3 4 Output 1 Output 2 1 2 3 4 5 6 7 8 9 10 1 2 3 4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 2...

Page 97: ...ER aa AUX SW EARLY CLOSE WHEN BREAKER CLOSES a AUX SW CLOSED WHEN BREAKER IS CLOSED bb AUX SW EARLY CLOSE WHEN BREAKER OPENS b AUX SW CLOSED WHEN BREAKER IS OPEN CC CLOSE COIL TC TRIP COIL X CLOSE AUX...

Page 98: ...I L 40 386 3 10 94 4 15 Figure 4 3 REL 301 302 Systems External Connection Sub 3 1613C80 Sheet 2 of 2 SEE SHEET 1 FOR DETAILS OF FT CONNECTIONS Denotes Change...

Page 99: ...T Type 5 1 amps Read out I and V in Primary or secondary units Read Out Primary Units Secondary Units Reactance for fault location X Dist 0 300 1 500 mile or km dependent on DistUnit setting Fault loc...

Page 100: ...reach PilotG R Disabled OUT 0 01 50 00 Zone1 phase unit Zone1 Disabled OUT 0 01 50 00 Zone1 ground unit Zone1G Disabled OUT 0 01 50 00 Zone1 ground reverse reach Zone1G R Disabled OUT 0 01 50 000 Zon...

Page 101: ...Zone3 ground reverse reach Zone3G R Disable OUT 0 01 50 00 Zone3 ground timer T3 G Blocked BLK 0 10 9 99 sec Zone3 direction Zone3 Forward dir FWD Reverse dir REV Pos seq line impedance angle Ang Pos...

Page 102: ...3 Choice of directional or non directional ground backup GB Dir Yes No Close into fault trip CIF Trip CIF TRIP CIF TRIP W DELAY NO CIF TRIP Load loss trip LL Trip Yes No FDOG Loss of potential block L...

Page 103: ...ase B voltage magnitude angle VBG magnitude Amps and angle Phase C current magnitude angle IC magnitude Amps and angle Phase C voltage magnitude angle VCG magnitude Amps and angle Time and date TimeDa...

Page 104: ...rip Zone3 Z3P Yes No Zone3 ground trip Zone3G Z3G Yes No Pilot phase trip Pilot PLTP Yes No Pilot ground trip Pilot G PLTG Yes No High set phase trip Inst ITP Yes No High set ground trip Inst G ITG Ye...

Page 105: ...C fault voltage VCB Flt VPC magnitude Volts and angle 3V0 fault voltage 3V0 Flt 3V0 magnitude volts and angle Phase A fault current IA Flt IPA magnitude Amps and angle Phase B fault current IB Flt IP...

Page 106: ...Low set ground overcurrent indication SEND Carrier Send OSB Out of step block pickup RI2 Reclose initiation TBM TBM signal blocking scheme CR1 Receive Channel 1 signal CR2 Receive Channel 2 signal 21...

Page 107: ...port 9 pin DCE To Modem 25 pin DTE See IL 40 610 For settings DB 9S RS 232C connected to PC Straight 2 3 5 7 8 To port 9 pin DTE To PC 9 or 25 pin DCE See Table 4 6 For settings DB 9S RS 232C connect...

Page 108: ...y Metering mode display test Settings application Hardware Verification Impedance Accuracy Check Tests of all inputs and contact outputs Additionally if the relay under test is a REL 302 the pilot log...

Page 109: ...12 Sync Check Voltage Reference VA P13 Receiver 2 Input Voltage Selection 48 125 Vdc Table 5 1 Power Supply Module See Figure 5 2 for Location Jumper Identification Jumper Purpose Factory Setting JMP1...

Page 110: ...ith reclosing the front panel has additional LED s up to 6 with sync check and the MMI has a switch to toggle between the reclosing settings and protection settings Separation of reclosing settings fr...

Page 111: ...set should be reviewed for correctness before continuing with this procedure Setting application example OSC Data setting 1 Press the RAISE push button to display the OSC Data setting upper left corn...

Page 112: ...voltages and as sociated angles See Table 4 2 for the details of the METER mode displayed quanti ties 5 1 3 TEST MODE The TEST display mode provides diagnostics and testing capabilities for REL 301 3...

Page 113: ...heck routine All data stored in the EEPROM is written to 3 identical arrays These arrays are continuously checked for agreement with each other If any of the 3 arrays disagree 2 arrays must agree with...

Page 114: ...is used to switch from background mode to fault mode processing In fault mode only processing related to fault calculation trip logic analysis are done All background mode functions not related to tr...

Page 115: ...ages VA VB VC 3V0 and Currents IA IB IC IP All trip associated contact outputs should be monitored as a part of this test Connect appropriate monitoring equipment to the dry contact outputs to be moni...

Page 116: ...fault voltage When the relay trips remove the fault current Zone1 and BG LED s will light The LCD display will indicate the fault distance Using the RAISE and LOWER push buttons the complete fault rec...

Page 117: ...oltage The relay should not trip Apply rated dc voltage to terminals TB4 5 and TB4 6 Again apply an AG fault with a current of 2 Amp at an angle of 75 lagging the fault voltage The relay should trip a...

Page 118: ...between 3 and 177 Or 90 87 where 90 could be referred to as the zero torque angle 5 1 7 Output Contact and Input Circuit Verification Test STEP 11 The purpose of this test is to check the hardware con...

Page 119: ...y rated voltage and as each input is energized the associated display segment changes from to This completes the REL 301 and REL 302 non pilot Acceptance Test 5 2 PILOT ACCEPTANCE TESTS FOR REL 302 ON...

Page 120: ...terminals TB4 9 and TB4 10 for tests a and b below a Blocking System Test Apply an AG fault as described in Step 6 The REL 302 should trip When the relay trips remove the fault current PILOT and AG LE...

Page 121: ...ot G YES Fault Voltages VA VB VC 3V0 and Currents IA IB IC IP Pressing the front panel RESET push button will cause the LCD display to switch to the METER display and the LEDs will stop flashing Recei...

Page 122: ...in equipment 5 3 1 4 Perform the Acceptance Test Performing this test is optional if all other test results are acceptable 5 4 CALIBRATION 5 4 1 Pre Calibration NOTE When the REL301 302 is being calib...

Page 123: ...Set the voltmeter input to 4 99634 Vdc Adjust Pot 17 until the Value display reds 3FF4 see A D Converter Gain adjustment 13 Turn OFF the dc power supply 14 Remove the battery voltage from TP1 and TP2...

Page 124: ...I L 40 386 3 10 94 5 17 Figure 5 1 Filter Input Module 1612C34 Sheet 3 of 3 Sub 2 52a 52b EXT RESET PILOT RCVR RCVR SYNC CHECK REFERENCE 2 1 ENABLE Not Used...

Page 125: ...86 3 5 18 10 94 Figure 5 2 Power Supply Output Module JMP1 NO NC JMP2 NO NC JMP5 NO NC JMP4 NO NC JMP3 NO NC JMP6 NC NO JMP7 NC NO CARRIER STOP CARRIER SEND OC 4 OC 3 AL 1 AL 2 OC 2 1612C68 Sheet 4 of...

Page 126: ...I L 40 386 3 10 94 5 19 Figure 5 3 Microprocessor Module JP6 JP5 JP3 JP4 Clock Battery 1613C55 Sheet 3 of 3 Sub 6...

Page 127: ...386 3 5 20 10 94 Figure 5 4 Test Connection for A Ground Test Va Vb Vc If 20 19 18 17 16 15 14 11 12 13 REL 301 302 Front View Rated dc Voltage Check Nameplate Install this jumper if dual polarizing n...

Page 128: ...386 3 10 94 5 21 Figure 5 5 Test Connection for B Ground Test Va Vb Vc If 20 19 18 17 16 15 14 11 12 13 REL 301 302 Front View Rated dc Voltage Check Nameplate Install this jumper if dual polarizing n...

Page 129: ...386 3 5 22 10 94 Figure 5 6 Test Connection for C Ground Test Va Vb Vc If 20 19 18 17 16 15 14 11 12 13 REL 301 302 Front View Rated dc Voltage Check Nameplate Install this jumper if dual polarizing n...

Page 130: ...I L 40 386 3 10 94 5 23 Figure 5 7 Test Connection for A Ground Test Dual Polarizing Va Vb Vc If 20 19 18 17 16 15 14 11 12 13 REL 301 302 Front View Rated dc Voltage Check Nameplate Ip...

Page 131: ...ed T3 2 00 sec Zone3 G Disabled Zone3G R 0 01 Ohms T3 G 2 50 sec Zone3 Forward Dir Ang Pos 75 Ang Zero 75 Z0L Z1L 3 0 Low V 60 Volts Low I 0 50 amps IM 0 50 amps 3IOs 0 50 amps 3IOm 0 50 amps Inst Dis...

Page 132: ...01 Ohms T2G Type Definite Time T2G Time 1 50 sec Zone3 Disabled T3 2 00 sec Zone3 G Disabled Zone3G R 0 01 Ohms T3 G 2 50 sec Zone3 Forward Dir Ang Pos 75 Ang Zero 75 Z0L Z1L 3 0 Low V 60 Volts Low I...

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