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I.L. 40-386.3

(10/94)

5-7

b.

The “TEST” display mode also provides access for testing for REL 301/302 output relay
contacts. All output relays will be tested using the procedure described in Step 12. In asso-
ciation with the contact test, receiver 1 and/or 2 units can be simulated for verification of
REL 302 pilot logic. These input simulations will be used later in

Section 5.2 Pilot Accep-

tance Tests for REL 302.

As previously stated, when REL 301 or REL 302 are energized the system performs a
complete self-test/startup/initialization routine. Upon successful completion of the
startup routine the system firmware enters what is referred to as the background
mode. In the background mode all “non-fault analysis” functions are performed. In the
background mode, current and voltage sampling is done continuously (2 millisecond
resolution) as well as the calculation of current and voltage phasors. Also, when the
system is in background mode MMI functions and (continuous) self-checking are per-
formed.

See Figure 1-6 for software flowchart reference.

Tripping decisions are made in the fault mode. Both the REL 301 and REL 302 utilize
a unique disturbance detector that 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 tripping are stopped.

The operate criteria for the disturbance detector (Fault Detector) are:

Phase current (

∆

IA,

∆

IB, or

∆

IC) > 1.0A peak and 12.5% change

Ground current (

∆

I0)>0.5 A peak

Phase voltage (

∆

VA,

∆

VB, or

∆

VC) >7V and 12.5% change with a current change of

∆

I>0.5 A

When one of the above is met, REL 301 or REL 302 will switch to fault mode process-
ing.

In order to perform all tests, voltages will be applied first then the designated value of
current has to be

suddenly

applied. If REL 301 or REL 302 does not trip, adjust the

current to a higher value, and then suddenly reapply current. Unlike conventional
electromechanical relays, slowly ramping up the current will not cause

Zone

1 tripping.

The current required to trip is shown for each test.

5.1.4

Zone

1 Impedance Accuracy Check

STEP 6

With the system under test connected

as shown in Figure 5-4

and with the settings

from

Table 5-1 (5-2 for REL 302)

applied to the system, adjust the voltages as follows:

V

A

= 30 ang 0

°

V

B

= 70 ang -120

°

V

C

= 70 ang 120

°

Apply current to the A phase current input as shown. The current required to trip is
4.00 amps

±

5% at an angle of 75

°

lagging the fault voltage. This is the “maximum

torque angle” test.

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Содержание REL 301

Страница 1: ......

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 8: ......

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 19: ......

Страница 20: ......

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 44: ......

Страница 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...

Страница 46: ......

Страница 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...

Страница 48: ......

Страница 49: ......

Страница 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...

Страница 51: ......

Страница 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...

Страница 53: ......

Страница 54: ......

Страница 55: ......

Страница 56: ......

Страница 57: ......

Страница 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...

Страница 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...

Страница 60: ......

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

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

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

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

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

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

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

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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