ML20039A750
| ML20039A750 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 12/18/1980 |
| From: | Justin Poole SOUTH CAROLINA ELECTRIC & GAS CO. |
| To: | |
| Shared Package | |
| ML20039A749 | List: |
| References | |
| TASK-A-44, TASK-OR EOP-4, GL-81-04, GL-81-4, NUDOCS 8112210263 | |
| Download: ML20039A750 (16) | |
Text
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.',.; 1 SOUTH CAROLINA . ELECTRIC AND~ GAS COMPANY VIRGIL C. SUMMER NUCL5hR STATION NUCLEAR CPERATIONS
- I O TO O P J EMERGENCY OPERATING PROCEDURS ih
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E0P-4 STATION BLACKOUT OPERATION REVISION 1 DECEMBER 18, 1980 SAFETY RELATED (X) f~
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E0P-4 PAGE i
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' REVISION 1 12/18/80 LIST OF EFFECTIVE PAGE5 M Revision i 1 11 1 1 1 2 1 3 1 4 -
1 5 1 6 1 7 1 8 1 .
9 1 ATTACHMENTS ATTACHMENT ! 1 ATTACHMENT II 1
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EOP PAGE 11 Il
' REVISION 1 12/18/80 TABLE'0F CONTENTS' E.a_ge, List of Effective Pages 'i
- 1. 0. PURPOSE = 1 2.0. REFERENCES-AND GLOSSARY 1
- 2. 1 -References 2.2 Glossary ,
30 ' CONDITIONS 2-3.1 Station Blackout 3.2 Loss of ESF Buse(s)
ATTACHMENTS ATTACHMENT I - 460 Volt BOP Desired Loads ATTACHMENT II - KW Rating.for'ESF Equipment c.
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REVISION 1 12/18/80 1.0 PURPOSE.
Tais procedure provides symptoms, automatic actions, immediate operator actions, follow up actions, and - final conditions f or a Station Blackout and a loss of ESF Buse(s) .
2.0 REFERENCES
AND GLOSSARY 2.1 References.
2.1.1 Virgil C. Summer Nuclear Station Final Safety Analysis
~ Report - Chapter 8 Section 8.3 Virgil C. Summer Nuclear Station Technical Specification 2.1.2 Section 3/4.8.
2.2 Glossary 2.2.1 Abbreviations A. BOP - Balance of Plant B. D/G - Diesel Generator C. ESF - Engineered Safety Feature I^ D. ESFLS - Engineered Safety Feature Loading. Sequencer E. EVAC - Heating, Ventilation, and Air Conditioning-F. L.C.O. - Limiting Condition for Operation G. MCB - Main Control Board H. PZR - Pressuricer I. RBCV - Reactor Building Cooling Unit J. SI - Safety Injection 2.2.2 Definitions A. Loss of.Offsite Power -. Condition sensed by 3/3-relays ~on-1/1 loss of voltage sensor _on one ESF Bus
< 5760 volts for > .25 seconds.. This definition includes'the degraded voltage of 6480 volts for-
>3.0 seconds.
B. Station Blackout - The loss of power to all 7'.2 KV BOP and ESF buses f rom Normal and Alternate power sources.
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E0P-4 PAGE 2 REVISION 1 12/18/80
, 30 CONDITIONS 3.1 Station Blackout 3 1.1 Symotoms A. . Reactor Trip
,- B. Turbine Trip C. Loss of Normal Lighting D. 7KV ESF Channel A Breaker Trip Alarm.
E. 7KV ESF Channel B Breaker Trip Alarm.
F. Train A Blackout Sequence initiated status light.
G. Train B Blackout Sequence initiated status light.
H. D/G A Emergency Start status light.
I. D/G B Emergency Start status light.
3 1.2 Automatic Actions.
A. Reactor Trip with a turbine trip.
B. Load Shedding occurs on XSW-lDA and XSW-lDB.
C. D/G A and B Auto Starts and- their breakers close to energize XSWlDA and XSW1DB within 10 seconds.
D. The ESFLS energizes the Saf e Shutdown equipment.
. E. The Turbine Driven Emergency Feedwater Pump starts and Emergeeny Feedwater is being delivered to all steam, generators at a maximum rate of flow.
3.1 3 Immediate Ooerator Action A. Verify Reactor Trip / Turbine Trip.
1). Verify all control and shutdown rods are fully .
inserted by digital rod position indication and-rod bottom lights.
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y_g PAGE 3 REVISION 1 .
12/18/30 2). When power is available, ' emergency borate 17 minutes (approximately 100 ppm) for each control or shutdown rod not fully inserted by opening MVT-8104 and verify flow on PI-110.
3). Verify reactor power is decreasing and transfer NR-45 recorder to one source range and one intermediate range channel.
B. Verify pressurizer _ level and pressure recovering from transient.
43 1). If not recovering, evaluate conditions for safety injection symptoms. If necessary safety
. 4 inject and go to E0P-1, Safety Injection in conjunction with this procedure.
C. Verify 1). Diesels lA and 1B started.
2). Buses XSW-lDA and XSW-lDB energizes.
3). ESFLS sequence completed (Train A & B Blackout Sequence complete monitor lights lit).
I_- 4). Emergency feedwater being supplied tc all steam generators.
D. Announce the condition over the plant page system.
3 1.4 Follow Uo Action l NOTE: Check or initial indicated steps wnen completed.l A. Verify all immediate action steps have been completed.
B. Adjust D/G voltage and frequency for both diesel generators to 7.2 KV and 60 HZ.
C. If ESFLS fails to function completely start the following equipment in each train.
1). Load Block 1 a). SI/ Charging Pump
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" EOP-4 PAGE 4 REVISION l 12/18/00
, b). Relay Room Cooling System Flow.
c). ESF Switchgear Room Cooling System Flow.
d). Service Water Normal Supply Fan.
e). Control Room Normal Supply Fan.
f). Control Room Emergency Filter System Flow.
g). Battery Room Exhaust Fan.
u D h). Speed Switch Room Fan. .
2). RER Pump (If SI Signal- is present) .
3). Service Water Pump (Fast Speed).
4). HVAC Chilled Water Pump.
5). Component Cooling Water Pump.
6). Emergency Feedwater Pump.
7). Reactor Building Cooling Units (Slow Speed) (one on each train).
8). Fuel Handling Building Exhaust Fan.
9). HVAC Chillers.
10). SW Booster Pump.
D. Establish Natural Circulation per E0P-13, Natural Circulation and stabilize the plant in conjunction with this procedure.
E. Reset the ESFLS for A and B Train.
F. Secure any unncessary equipment upon shift supervisor approval.
G. Notify System Load Dispatcher of conditions.
H. Verify. Emergency Bearing 011 Pump running for the main turbine.
I. Verify emergency oil pump _ running for. all feedwater pump turbines.
. - -EOP-4 -
-, PAGE 5 REVISION 1 12/,18/80 J. Place the PZR Backup heaters in service (if needed and per Shift Supervisor Approval) by the following steps:
- 1. Locally open all individual heater breakers.
2.. Turn the MCB control switches for the PZR Backup Heaters to the Start position. -
3 Locally close the individual heater breakers while observing the KW meter for the diesel generators.
CAUTION: Do not exceed the following diesel generator loading limits:
4250KW continuous 4676KW 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> out of 24 for 1 year 4676KW for 7 days 5100KW for 30 minutes K. Complete Followup Actions of any emergency procedure used in conjunction with this procedure.
1). EOP-1, Safety Injection 2). EOP-5, Reactor Trip r
- c. 3). E0P-13, Natural' Circulation L. If power is to be out for an extended period . of time and it is deemed necessary, prepare to energize BOP electrical buses by opening and racking out (if applicable) all breakers on XSWlB1 and XSWlB3 except for the following:
NOTE: This step is required in order to complete steps M-through R. If not reouired, skip to Step S.
- 1. Emerg. Feed -f rom ESF Bus XSW-lDB1-ES XSWlB3 (038) .
- 2. Emerg. Feed from ESP Bus XSW-1DAl-ES XSWlBl'(05B).
M. If there is sufficient KW available - and it is deemed necessary, energize XSWlB1, and XSWlB3 from the ESF buses and load as follows:
CAUTION: Do not exceed the - following diesel generator loading limits:
4250KW continuous 4676KW 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> out cf 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> for 1 year 4676KW for 7 days 5100KW for 30 minutes
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E0P-4 PAGE 6 REVISION 1 12/28/80 1
- 1. Close Bu~s 131-1DAl Tie Breaker on MCB and observe that XSWlB1 potential lights illuminated.
- 2. Close Bus 133-lDB1 Tie Ereaker on MCB and observe that XSWlB3 potential lights illuminate.
3 Energize the electrical buses listed on Attachment I, 480 Volt BOP desired. loads, one at a time observing the KW load limite on the diesel generators.
N. Start the Turbine Closed Cycle Cooling Pump "B" XPP-46B.
O. Start th,e TGOP and secure the EBOP.
P. Verify the oil lif t pumps are running.
Q. At zero speed verify the Main Turbine turning gear is engaged and operating.
R. Verify the main oil pump for " A" and "B" Feedwater pumps are running and secure the emergency (DC) 011 pump for each.
S. Refer to Technical Specifications Sections 3/4.8 for applicable LCO and Actions.
3.1.5 Final Conditions A. The plant is being maintained in a stable condition using E0P-13 Natural Circulation.
B. Work is being performed to restore power to the 7.2KV BOP and ESF buses.
3.2 Loss of Offsite Power (ESP Bus or Buses) .
3 2.1 Symptoms A. 7KV ESF Channel A Breaker Trip Alarm.
B. 7KV ESF Channel B Breaker Trip Alarm.
C. Train A Blackout Sequence Initiated Status Light.
D. Train B Blackout Sequence Initiated Status Light.
i E. D/G A Emergency Start status light.
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'- E0P-4 PAGE 7 REVISION 1 12/18/80 F. D/G B Emergency Start Status Light.
3.~2.2 Automatic Actions A. Load Shedding occ.cs on XSW1DA and/or XSW1DB.
B. D/G A and/or B starts and the creakers . close to energize XSWlDA and/or XSWlDB within 10 seconds.
C. The ESFLS energizes the SAFE SHUTDOWN equipment on the affected buses.
7 D. Emergency Feedwater Pump (s) auto start and supp'ly emergency feedwater to all steam generators.
I NOTE: Loss of ESF Buses will not cause a reactor trip or safety injection.
3.2 3- Immediate Operator Action A. Verify Automatic Action.
1). Diesel 1A and 1B started.
2). Buses XSW1DA and XSWlDB energized.
3). ESFLS Sequence completed (Train A and/or B
, Blackout Sequence complete monitor light lit).
4). Emergency feedwater pump (s) started and supplying water to all steam generators.
B. Announce the condition over the plant page system.
3.2.4 Follow Up Action l NOTE: Check or initial completed steps as indicated. l A. Verify immediate actions completed.
i B. Monitor plant parameters for reactor trip conditions. _
1). If reactor trip has occured or is required
, impliment E0P-5, Reactor Trip in conjunction
, with this procedure.
C. Monitor Plant Parameters for safety injection conditions.
1). If safety. injection has occured or is required impliment EOP-1. Safety Injection in conjunction with this procedure.
. PAGE 8 REVISION 1 12/18/80
, , D. ' Adjust D/G voltage and f requency to 7.2 KV and 60 HZ.
E. In the event the ESFLS failed to. function completely, energiz'e the following equipment en the affected/ train (s).
1). Load Block 1 a). SI/ Charging Pump b). Relay Room Cooling System Flow.
c). ESF Switchgear Room Cooling System Flow.
d). Service Water Normal Supply Fan.
e). Control Room Normal Supply Fan.
f). Control Room Emergency Filter System Flow..
g). Battery Room Exhaust Fan.
h). Speed Switch Room Fan.
2). Service Water Pump (Fast Speed).
3). Chilled Water Pump.
4). Component Cooling Water Pump. -
5). Energency Feedwater Pump.
.6 ) . Reactor Building Cooling Unit 7). Fuel Handling Building Exhaust Fan.
3). HVAC Chillers. -
F. Reset the ESFLS for- the affected train (s) . '
G. Monitor plant parameters.and stabilize the plant.
H. Stop any equipment not required for continued plant operation per Shif t Supervisors direction.
I. Refer.to Technical Specification, SectionL3/4.8 for-applicable limiting-condition-for operation and action statements.
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PAGE 9 REVISION 1 12/18/80
, J. Notify System Dispatcher of Conditions. ,
3 2.5 Final conditions A. The plant is stable and work is in progress to retiten the ESF Bus (es) to normal operation.
B. Follow Up Actions in any emergency procedure (s) used in conjunction with this procedure is in progress.
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. ATTACHMENT I PAGE 1 0F 2 EZVISION-1 480 VOLT BOP DESIRED LOADL CAUTION: Ensure all breakfE7 are open and racked out (if applicable) on the following Electrical Buses ,
exceot as listed below.
XSW-1B1 (436 TB)
- 1. Turbine Closed Cycle. Cooling Pump B XPP-46 B-TC (05A). '
- 2. Emerg. Feed f rom ESP Bus XSW1DAl-ES (0"B).
3 Alternate feed to substation '05C).
- 4. motor Control Center FDR XMC1BlX (06B).
XSW-133 (436 AB)
- 1. Motor Conte. Center for XMClB3Y-Es (01B).
- 2. Motor Conte. Center for XMClB3X-ES (02B).
- g. . 3 Emerg. Feed from ESF Bus XSWlDB1-ES (03B).
XMCIA1X (412 TB)
- 1. Feedwater Pump A Turbine turning gear (17AB).
- 2. FW Pump Turbine "A" Main Oil Pump TPP-0022A (20IK).
- 3. Lighting panel 2 normal lighting APN-8002-EM (06KM).
- 4. Lighting panel 29 normal lighting APN-8029-EM (07CE). -
- 5. Lighting panel 33 normal lighting APN-8033-EM (08AC).
- 6. Lighting panel 39 normal lighting APN-8039-EM (09AC).
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- EOP-4 ATTACHMENT I
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REVISION 1
- XMC-1BlX (436 TB)-
Lighting panel 1 normal lighting XPN-8001-EM (14KM)~.
- 2. Feeder XMC131Y XMC131Y-ES (15CE).
3 Emerg, Aux. Transf 1 CLRS, Pumps XTF-0031-ES (16 DEL).
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- 4. Emerg. Aux. Tranaf 2 CLRS, Pumps XTF-0032-ES (16 DER).
, 3 5 Peedwater Pump Turbine B Main Oil Pump (16IK).
- 6. Turbine Turning Gear XTG-0001-TA (12AK).
XMC-1BlY (436 TB)
- 1. Main Turb 011 Lift Pump, Bearing 6 XPP-0095TA
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(06AB).
- 2. Main Turb 011 Lift Pump, Bearing 7 XPP-0095TA (06CO).
3 FW Pump B Turb Turning Gear (02IJ).
- 4. Main Turb 011 Lif t Pump, Bearing 4 XPP-0091-2A (05CD)'.
,... 5. Main Turb 011 Lift pump, Bearing 5 XPP-0092-TA (05EF).
- 6. Main Turb 011 Lif t Pump,- Bearing 8 XPP-0093-TA (05GH).
- 7. Main Turb 011 Lift Pump, Bearing 2 XPP-0094-TA (05IJ).
- 6. Main Turb 011 Lift Pump, Bearing 3 XPP-0094-TA (05KL).
XMC-1B3x (463 AB)
- 1. Lighting Panel Transformer 42 XTF-8042-EM (02IL).
- 2. Transf-for Lighting Panel 9 Normal Lighting XFT-8009-EM. (05HJ).
XMC-1B3Y (436 F.H.B)
- 1. - Lighting Pn1 30 Transformer XTF-8030-EM ( 06 KM) . -
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. ' ATTACHMENT II
- l' AGE l'0F 2
, RE'/ISICN 1 KW RATING OF ESF EQUIPMENT XSW1DA EQUIPMENT- KW RATING Component Cooling Water Pump A(C) 464 (fast)/207-L(Slow)
Service Water' Pump A(C) 532 (fast)/261.(Slow)
Charging Pump A(C) 729 RER Pump A 264
- Emergency Feedwater Pump A 470 RB-Spray Pump A 323 Spent Fuel Cooling Pump A 62 ,
- service Water Booster Pump A' 290 HVAC Chiller Unit A(C) 281
-FNAC Chiller Pump A(C) 56
_7. FHB Exhaust Fan. 50 RB Cooling Units (2 Units) .78 AB Charcoal Exhaust Fan 104 XMClDA2X 336 XMC1DA2Y- 215 XMC1DA2Z 86 XMClEA1X 91-PZR Backup Heaters-(Group 1) 537 4
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* :EOP-4
-ATTACHMENT II.
.,' PAGE 2u0F 2 REVISION 1 KW RATING OF ESF1 EQUIPMENT XSW1DB EQUIPMENT KW RATING t
Component Cooling Water Pump B(C) 414 (fast)/207 (Slow)
Service Water Pump B(C) .532 (rast)/261 (Slow)
Service Water Booster Pump B 240
'il3 Charging Pump B(C)
RHR Pump B '
~{264 Emergency'Feedwater Pump B 470 lJ RB Spray Pump B 323 Spent Fuel Cooling Pump B '62 i 4
HVAC Chiller Unit B(C) 281 e f HVAC ChillerLPump B(C) 56
- . ). FHB Exhaust Fan- 50 3
RB Cooling. Units (2 Units) 78 AB Charcoal Exhaust' Fan 104'
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Backup Instrument Air Compressor 124 Technical Support' Center 32 XMC1DB2X 135 XMC1DB2Y 240 i XMC1DB2Z 70 t XMClEB1X 139 PZR Backup Heaters (Group 2) 537 4
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