ML17251A632
| ML17251A632 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 03/22/1985 |
| From: | ROCHESTER GAS & ELECTRIC CORP. |
| To: | |
| Shared Package | |
| ML17251A631 | List: |
| References | |
| PT-32.5, NUDOCS 8604140074 | |
| Download: ML17251A632 (6) | |
Text
ROCHEST GAS AND ELECTRIC CORPORAT/ON l
GINNA STAT10N CONTROLLED COPY NUMBER OAT~:-
ilk",E:-
PROCEDURE NO ~
PT-32.5 REV.
NO.
2 REACTOR TRIP BREAKERS "A" & "B" TRAIN
RESPONSE
TIME TESTING TECHNICAL REVIEW PORC REVIEW DATE D~O 8Q QC R VIEW PLANT S ERINTENDENT EFFECTIVE DATE QA NON-QA
'CATEGORY 1.0 REVIEWED BY:
THIS PROCEDURE CONTAINS 5
PAGES Hb0%1%0074 8b0407 PDR ADOCK 05000244 p
PT-32.5:1 PT-32.5 REACTOR 'TRIP BREAKERS'An
& nBn TRAIN
RESPONSE
TIME TESTING
1.0 PURPOSE
1.2 To provide instructions for testing the trip response time of the reactor trip breakers from a trip signal to the undervoltage coil.
To provide instructions for testing the trip response time of the reactor trip breakers from a trip signal to the shunt coil.
2.0 TEST RE UIREMENTS:
2 ~ 1 To demonstrate that the reactor trip breakers open within 0.167 seconds (10 cycles) of a trip signal to the undervoltage coi,l or tithe shunt trip 'coil.
Should the response time exceed 8 cycles the breaker.
shall either be repaired or tested again in six months.
3.0 REFERENCES
3.1 RG&E Drawing 33013-673, Ginna Station Reactor Breaker Schematic.
4.0 INITIALCONDITIONS 4.1 Test may be conducted with plant at hot or cold shutdown status.
4 '
Reactor trip breakers are available for service.
4.3 Install simulators to satisfy reactor trip signals.
4 '
Test personnel are qualified in accordance with A-1102.
4.5 Notify Shift Supervisor and Head Control Operator prior to starting test.
PT-32.5:2 4.6 Notify Q.C. prior to starting test.
5.0
5.1 PRECAUT1ONS
Observe normal company safety practices.
6.0 INSTRUCTIONS
6.1 Electric Shop place Reactor Trip Breakers into the operating position.
6.2 6.2.1 Train "A" Testing.
At the Train "A" Reactor Protection Racks set up test equipment per attached sketch.
6.2. l. 1 Connect Trace 3 to Fox 1 rack per attached sketch.
6.2.2 Close "A" Reactor Trip Breaker by actuating RTA set switch in RLTR-1 Rack.
6.2.3 Start visicorder, and then energize Breaker Trip Coil by actuating RTA Trip Switch in RLTR-1 Rack.
6.2.4 Label visicorder trace 6 calculate trip response time.
Response
Time:
sec.
6.2.5 Close "A" Reactor Trip Breaker by actuating RTA set switch in RLTRl Rack.
6.2.6 Start visicorder, and then de-energize breaker UV coil by activating the Zirconium Guide Tube Interlock Trip Signal.
- 6. 2.7 Label visicorder trace
& calculate trip response time.
, Response Time:
Sec.
e PT-32.5:3 6.2.8 6.3 6.3.1 Disconnect test equipment.
Train "B" Testing.
At the Train "B" Reactor Protection Racks set up test equipment per attached sketch.
6.3.1.1 Connect Trace 3 to Fox 2 rack per attached sketch.
6.3.2 Close "B" Reactor Trip Breaker by actuating RTB set switch in RLTR-2 Rack.
6.3
~ 3 Start visicorder, and then energize Breaker Trip Coil by actuating RTB Trip switch in RLTR-2 Rack.
6.3.4 Label visicorder trace
& calculate trip response time.
Response
Time:
. Sec.
6 '
Close "B" Reactor Trip Breaker by actuating RTB Set switch in RLTR-2 Rack.
6.3.6 Start visi;corder trace, and then de-energize breaker UV coil by activating the Zirconium Guide Tube Interlock Trip Signal.
6.3 '
Label visicorder trace
& calculate trip response time.
Response
Time:
Sec.
6.3.8 6
~ 4 6.5 Disconnect test ecpxipment.
Electric Shop place Reactor Trip Breakers into position desired by 'Operations.
I&C Supervisor and Electric Shop Foreman compare the response times obtained in this test to previous test
- times, and evaluate them for signs of degradation.
I&C SUPERVISOR:
. ELECTRIC SHOP FOREMAN:
COMMENTS:
COMPLETED BY:
DATE COMPLETED:
HEAD CONTROL OPERATOR:
SHIFT SUPERVISOR:
RESULTS
& TEST REVIEW'ATE
TEST SETUP FOR REACTOR TRIP BREAKERS RESPONSE TIME TESTING VARIAC AC TIME TRACE VISICORDER RLTR 1
TRACE 1
SHUNT TRIP COIL TRACE 2 DC POWER SUPPLY UV COIL TRACE 3 FOX RACKS 1
OR 2 ZIRCONIUM GUIDE TUBE INTERLOCK TRIP SIGNAL 0
Q DC POWER SUPPLY RLTR 2
RTA Q
RTA 4
125 VDC BREAKER TEST RELAY GREEN LIGHT REACTOR TRIP BREAKER OPEN TRACE 4