ML021570339

1 to AP-RHR.2, Loss of RHR While Operating at RCS Reduced Inventory Conditions

ML021570339
Person / Time
Site:	Ginna
Issue date:	05/21/2002
From:	Widay J Rochester Gas & Electric Corp
To:	Clark R Document Control Desk, NRC/NRR/DLPM/LPD1
References
Download: ML021570339 (18)

Text

R E A Subsidiary of RGS Energy Group, Inc.

ROCHESTER GAS AND ELECTRIC CORPORATION - 89 EAST AVENUE, ROCHESTER, N.Y 14649-0001 ° 716-771-3250 www.rge.com JOSEPH A. WIDAY VICE PRESIDENT & PLANT MANAGER GINNA STATION May 21, 2002 U.S. Nuclear Regulatory Commission Document Control Desk Attn: Robert Clark Project Directorate I Washington, D.C. 20555

Subject:

Emergency Operating Procedures R.E. Ginna Nuclear Power Plant Docket No. 50-244

Dear Mr. Clark:

As requested, enclosed are Ginna Station Emergency Operating Procedures.

Very truly yours, A. Widay JAW/jdw xc:

U.S. Nuclear Regulatory Commission Region I 475 Allendale Road King of Prussia, PA 19406-1415 Ginna USNRC Senior Resident Inspector Enclosure(s):

AP Index AP-RHR.2, Rev 11

REPORT NO.

01 REPORT: NPSP0200 DOC TYPE:

PRAP PARAMETERS:

DOC TYPES -

PRAP PROCEDURE NUMBER AP-CCW. 1 AP-CCW. 2 AP-CCW. 3 AP-CR.1 AP-CVCS.1 AP-CVCS.3 AP-CW. 1 AP-ELEC. 1 AP-ELEC.2 AP-ELEC.3 AP-ELEC.14/16 AP-ELEC. 17/18 AP-FW. 1 AP-IA. 1 AP-PRZR.1 AP-RCC. 1 AP-RCC.2 AP-RCC.3 AP-RCP. 1 AP-RCS.1 AP-RCS.2 AP-RCS.3 AP-RCS.4 AP-RHR.1 GINNA NUCLEAR POWER PLANT PROCEDURES INDEX ABNORMAL PROCEDURE PRPT PRRSSP STATUS: EF QU 5 YEARS PROCEDURE TITLE LEAKAGE INTO THE COMPONENT COOLING LOOP LOSS OF CCW DURING POWER OPERATION LOSS OF CCW -

PLANT SHUTDOWN CONTROL ROOM INACCESSIBILITY CVCS LEAK LOSS OF ALL CHARGING FLOW LOSS OF A CIRC WATER PUMP LOSS OF 12A AND/OR 12B BUSSES SAFEGUARD BUSSES LOW VOLTAGE OR SYSTEM LOW FREQUENCY LOSS OF 12A AND/OR 12B TRANSFORMER (BELOW 350 F)

LOSS OF SAFEGUARDS BUS 14/16 LOSS OF SAFEGUARDS BUS 17/18 PARTIAL OR COMPLETE LOSS OF MAIN FEEDWATER LOSS OF INSTRUMENT AIR ABNORMAL PRESSURIZER PRESSURE CONTINUOUS CONTROL ROD WITHDRAWAL/INSERTION RCC/RPI MALFUNCTION DROPPED ROD RECOVERY RCP SEAL MALFUNCTION REACTOR COOLANT LEAK LOSS OF REACTOR COOLANT FLOW HIGH REACTOR COOLANT ACTIVITY SHUTDOWN LOCA LOSS OF RHR REV 014 015 013 017 012 002 010 022 009 010 003 003 012 017 012 007 009 004 013 015 010 009 011 016 05/21/02 PAGE:

1 ONLY:

EFFECT DATE 01/09/01 09/14/01 09/14/01 05/11/01 05/01/98 02/11/00 07/16/98 10/31/01 03/22/99 10/31/01 03/15/01 10/31/01 02/11/00 12/02/99 03/26/01 05/22/01 09/14/01 11/16/98 06/09/00 09/08/00 12/14/98 04/01/02 12/02/99 09/14/01 LAST REVIEW 05/01/98 08/17/99 08/17/99 01/11/00 05/01/98 02/26/99 05/01/98 05/01/98 03/22/99 05/01/98 01/22/02 01/22/02 02/27/98 05/01/98 12/02/99 05/14/98 01/22/02 02/27/98 05/01/98 05/01/98 05/01/98 04/01/02 05/01/98 05/01/98 NEXT REVIEW 05/01/03 08/17/04 08/17/04 01/11/05 05/01/03 02/26/04 05/01/03 05/01/03 03/22/04 05/01/03 01/22/07 01/22/07 02/27/03 05/01/03 12/02/04 05/14/03 01/22/07 02/27/03 05/01/03 05/01/03 05/01/03 01/22/07 05/01/03 05/01/03 ST EF EF EF EF EF EF EF EF EF EF EF EF EF EF EF EF EF EF EF EF EF EF EF EF

(

REPORT NO.

01 REPORT: NPSP0200 DOC TYPE:

PRAP PARAMETERS: DOC TYPES PROCEDURE NUMBER AP-RNR.2 AP-SG.1 AP-SW.1 AP-SW.2 AP-TURB.1 AP-TURB.2 AP-TURB.3 AP-TURB.4 AP-TURB.5 PRAP GINNA NUCLEAR POWER PLANT PROCEDURES INDEX ABNORMAL PROCEDURE PRPT PRRSSP STATUS:

EF QU 5 YEARS ONLY:

PROCEDURE TITLE LOSS OF RHR WHILE OPERATING AT RCS REDUCED INVENTORY CONDITIONS STEAM GENERATOR TUBE LEAK SERVICE WATER LEAK LOSS OF SERVICE WATER TURBINE TRIP WITHOUT RX TRIP REQUIRED TURBINE LOAD REJECTION TURBINE VIBRATION LOSS OF CONDENSER VACUUM RAPID LOAD REDUCTION REV 011 001 016 001 010 017 EFFECT DATE 05/21/02 07/18/01 10/31/01 04/01/02 02/12/99 02/11/00 05/21/02 PAGE:

2 LAST REVIEW 03/31/00 09/08/00 06/03/98 10/31/01 01/22/02 05/13/98 NEXT REVIEW 03/31/05 09/08/05 06/03/03 10/31/06 01/22/07 05/13/03 010 02/11/00 02/10/98 02/10/03 014 05/01/98 05/01/98 05/01/03 005 06/09/00 06/09/00 06/09/05 ST EF EF EF EF EF EF EF EF EF TOTAL FOR PRAP 33

£

ITLE:

LOSS OF RHR WHILE OPERATING AT RCS REDUCED INVENTORY CONDITIONS REV: 11 PAGE 1 of 14 ROCHESTER GAS AND ELECTRIC CORPORATION GINNA STATION CONTROLLED COPY NUMBER RESPONSIBLE NAGER EFFECTIVE DATE CATEGORY 1.0 REVIEWED BY:

1ITLE:

?-RHR.2 LOSS OF RHR WHILE OPERATING AT RCS REDUCED REV:

11 INVENTORY CONDITIONS PAGE 2 of 14 A.

PURPOSE -

This procedure provides guidance necessary for maintaining core cooling and protecting the reactor core in the event that RHR cooling is lost during RCS reduced inventory operation, (i.e.,

at indicated Loop Levels of less than 64 inches with fuel in the vessel).

B.

ENTRY CONDITIONS/SYMPTOMS

1. SYMPTOMS -

The following symptoms are indicative of LOSS OF RHR AT RCS REDUCED INVENTORY CONDITIONS:

a.

No RHR pumps running, or

b.

Annunciator A-20, RESIDUAL HEAT REMOVAL LOOP LO FLOW 2900 GPM (Set at 400 GPM per 0-2.2 in RHR Cooling mode)

lit, or

c.

Unexpected increase in RCS temperature while on RHR cooling at low loop levels,; or

d.

Erratic or no flow on FI-626

LOSS OF RHR WHILE OPERATING AT RCS REDUCED INVENTORY CONDITIONS REV:

11 PAGE 3 of 14 CAUTION o

CHANGES IN RCS PRESSURE COULD RESULT IN INACCURACIES IN RCS LOOP LEVEL INDICATIONS.

"O SHOULD CORE BOILING OCCUR, "SURGE LINE FLOODING" MAY RESULT IN RCS PRESSURIZATION AND ERRONEOUS HIGH LOOP LEVEL INDICATION.

"o DO NOT START ANOTHER RHR PUMP UNTIL THE CAUSE OF THE ABNORMAL RHR INDICATIONS HAS BEEN DETERMINED AND CORRECTED.

IF A RUNNING PUMP HAS TRIPPED FOR REASONS OTHER THAN LOW LOOP LEVEL OR LOSS OF SUCTION FLOW, THEN REDUNDANT PUMP MAY BE STARTED.

"o IA TO CNMT MAY BE REQUIRED FOR RCS MAKEUP AND SHOULD NOT BE ISOLATED UNTIL DIRECTED BY THIS PROCEDURE.

NOTE:

Conditions should be evaluated for site contingency reporting (Refer to EPIP-l.0, GINNA STATION EVENT EVALUATION AND CLASSIFICATION).

1 Initiate CNMT Closure (Refer to O-2.3.1A, CONTAINMENT CLOSURE CAPABILITY IN TWO HOURS DURING RCS REDUCED INVENTORY OPERATION)

LOSS OF RHR WHILE OPERATING AT RCS REDUCED INVENTORY CONDITIONS REV:

11 PAGE 4 of 14 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 2 Check If RHR Pumps Should Be Stopped:

a.

RHR pump ANY RUNNING

b.

Check RCS level:

o Level -

GREATER THAN 6 INCHES o

Level -

STABLE

c.

RHR flow - LESS THAN 500 GPM

d.

RHR pumps cavitating:

"o RHR pump flow -

OSCILLATING

-OR "o RHR pump NPSH - APPROXIMATELY ZERO (PPCS Group Display NPSH)

e. Stop RHR pumps 3 Isolate Letdown And Known Drain Paths

a. Verify the following valves CLOSED o RCDT pump suctions from sump B, MOV-1813A and MOV-1813B

• Loop B cold leg to REGEN Hx, AOV-427 o Low pressure letdown pressure control valve, PCV-135 o RHR letdown flow control valve, HCV-133 o Excess letdown isolation valve, AOV-310

b. Evaluate normal drain lineups

c. Evaluate maintenance activities affecting RCS or RHR system

a.

Go to Step 3.

b. Stop RHR pumps and go to Step 3.

c. Reduce RHR flow as necessary.

d.

Go to Step 1'8.

a. Manually close valves.

ITLE:

LOSS OF RHR WHILE OPERATING AT RCS REDUCED REV: 11 INVENTORY CONDITIONS PAGE 5 of 14 4 Start Available CNMT RECIRC Fans NOTE:

Personnel remaining in CNMT to assist in event mitigation should consult Radiation Protection for changes in radiological concerns.

5 Initiate Actions To Protect Personnel In CNMT:

a. Evacuate non-essential personnel from CNMT

b. Periodically monitor CNMT radiation CAUTION "o PERSONNEL WORKING IN CNMT SHOULD BE WARNED BEFORE REFILLING THE RCS TO AVOID INADVERTANT CONTAMINATION OF PERSONNEL WORKING NEAR RCS OPENINGS.

"o THE S/G OFFICE SHOULD BE NOTIFIED BEFORE RAISING LOOP LEVEL.

"o ONLY BORATED WATER SHOULD BE ADDED TO THE RCS TO MAINTAIN ADEQUATE SDM.

• 6 Check RCS Temp Go to Step 11.

"o Core Exit TC's - LESS THAN 200OF "o No visual steam at RCS vents

LOSS OF RHR WHILE OPERATING AT RCS REDUCED INVENTORY CONDITIONS REV:

11 PAGE 6 of 14 SACTION/EXPECTED RESPONSEI REPOS NOT OBTAINEDI 7 Check RCS Loop Level -

LESS THAN 30 INCHES Go to Step 12.

NOTE:

The next four steps are sequenced to indicate the preferred order of RCS refill methods if core boiling is not occurring.

8 Refill The RCS By Gravity Feed From The RWST

a. Dispatch AO to locally throttle open RHR pump suction from RWST, MOV-856

b.

Close RHR pump discharge valve to loop B cold leg, MOV-720

c. Verify MOV-856 indicates midposition

c.

Perform the following:

1) Open MOV-720.

2)

Go to Step 9.

d. Verify RCS loop level INCREASING AS EXPECTED

e.

Check RCS loop level GREATER THAN 30 INCHES

f.

Manually close MOV-856

g.

Open RHR pump discharge valve to B loop cold leg, MOV-720

d.

Perform the following:

1) Close MOV-856.

2) Open MOV-720.

3)

IF RCS loop level greater than 6 inches, THEN go to Step 9.

IF NOT, THEN go to Step 11.

e. Continue filling RCS.

WHEN RCS loop level greater than 30

inches, THEN do Steps 8f through h.

f.

Direct AO to locally close valve.

g.

IF MOV-720 does NOT open, THEN open core deluge valves MOV-852A and MOV-852B.

h.

Go to Step 12

LOSS OF RHR WHILE OPERATING AT RCS REDUCED INVENTORY CONDITIONS REV:

11 PAGE 7 of 14 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 9 Refill The RCS By Charging To B Loop Cold Leg:

a. Verify IA to CNMT, AOV-5392 OPEN

b.

Open and verify open charging line valve to loop B cold leg, AOV-294

c. Ensure HCV-142 demand at 0%

d. Start operable charging pump and increase flow to maximum

e. Verify charging flow -

GREATER THAN ZERO

f.

Verify RCS loop level INCREASING AS EXPECTED

g.

Check RCS loop level THAN 30 INCHES GREATER

a. Manually open valve.

b. Open alternate charging line to loop A cold leg, AOV-392B, and go to Step 9d.

e. Perform the following:

1) Stop operating charging pump.

2)

Close AOV-294.

3)

Go to Step 10.

f.

Perform the following:

1) Open or verify open alternate charging line to loop A cold leg, AOV-392B.

2)

Close AOV-294.

3) Verify loop level increasing as expected.

IF NOT, THEN perform the following:

a) Stop operating charging pump.

b) Close AOV-392B.

c) Close IA to CNMT, AOV-5392.

d)

Go to Step 10.

g.

Continue filling RCS.

WHEN loop level greater than 30 inches, THEN do Steps 9h through j.

h.

Stop running charging pump

i.

Close or verify closed charging line valve to loop B cold leg, AOV-294 and AOV-392B

j.

Go to Step 12 ILE:

I

LOSS OF RHR WHILE OPERATING AT RCS REDUCED INVENTORY CONDITIONS REV:

11 PAGE 8 of 14 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINEDl 10 Refill RCS Using SI Pumps To Cold Legs:

a. Open the appropriate SI pump discharge valves to loop cold legs

• 'A SI Pump

• B SI Pump

• C SI Pump MOV-878B MOV-878D MOV-878B AND/OR MOV-878D

b. Open SI pump suction valves from RWST

• MOV-825A

• MOV-825B

c.

Start operable SI pump

d. Verify the following:

"o SI flow -

GREATER THAN ZERO "o RCS loop level -

INCREASING AS EXPECTED

a. Ensure at least one valve open.

IF valves can NOT be opened, THEN dispatch AO to check breakers.

"* MOV-878B, MCC D position 8C

"* MOV-878D, MCC D position 8F

b. Ensure at least one valve open.

IF valves can NOT be opened, THEN dispatch AO to check breakers.

"* MOV-825A, MCC C position 9J

"* MOV-825B, MCC D position 9J

d. Perform the following:

1) Stop operating SI pump.

2) Close loop cold leg inlet valves.

• MOV-878B

• MOV-878D

3)

Go to step 11.

e.

Check RCS loop level GREATER THAN 30 INCHES

f.

Stop running SI pump

g.

Close SI discharge valves to loop cold legs, MOV-878B and MOV-878D

e. Continue filling RCS.

WHEN loop level greater than 30 inches, THEN do steps 10f through h.

h.

Go to Step 12

LOSS OF RHR WHILE OPERATING AT RCS REDUCED INVENTORY CONDITIONS REV:

11 PAGE 9 of 14 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED NOTE:

SI Pump makeup should not be secured when core boiling is indicated.

11 Refill RCS Using SI Pumps To Hot Legs:

a. Open the appropriate SI pump discharge valves to loop hot legs

• A SI Pump

• B SI Pump

• C SI Pump MOV-878A MOV-878C MOV-878A AND/OR MOV-878C

b. Open SI pump suction valves from RWST

• MOV-825A

• MOV-825B

c. Start operable SI pump

d.

Verify the following:

o SI flow GREATER THAN ZERO o

RCS loop level AS EXPECTED INCREASING

e. Operate SI Pump as necessary to maintain the following parameters:

"o Core Exit TC's -

LESS THAN 2000 F "o No visual steam at RCS vents "o RCS loop level -

GREATER THAN 30 INCHES

a. Ensure at least one valve open.

IF valves can NOT be opened, THEN dispatch AO to check breakers.

e MOV-878A, MCC C position 8C o MOV-878C, MCC C position 8F

b. Ensure at least one valve open.

IF valves can NOT be opened, THEN dispatch AO to check breakers.

• MOV-825A, MCC C position 9J o MOV-825B, MCC D position 9J

d.

Perform the following:

1) Stop operating SI pump.

2) Close loop hot leg inlet valves.

a MOV-878A e MOV-878C

3)

Ensure makeup flow is initiated

"* Gravity feed from RWST

"* Charging pumps

"* SI pumps to cold legs

"* VCT overpressure

"* RWST purification pump

e.

IF core exit TC's continue to increase, THEN return to Step 9 to establish additional charging or SI flow to the RCS cold legs.

---

11"

LOSS OF RHR WHILE OPERATING AT RCS REDUCED INVENTORY CONDITIONS REV:

11 PAGE 10 of 14 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 12 Identify And Isolate Any RCS Leakage NOTE:

If adequate time to completely vent the RHR system is not available, then air can be swept out of the RHR lines by running an RHR pump at a flowrate between 1200 gpm and 1400 gpm.

13 Vent RHR System As Necessary

a. Maintain RCS level while venting RHR system

b. Direct AO to vent RHR suction line from loop A at valve V-2764 (in CNMT by loop A)

CAUTION THE RHR PUMP FLOW CONTROL VALVES WILL FAIL PRESSURE.

OPEN ON LOSS OF INSTRUMENT AIR 14 Check IA system:

"o Verify adequate air compressors RUNNING "o Verify IA pressure GREATER THAN 60 PSIG Reset and start additional IA compressors as necessary (75 kw each).

IF IA pressure can NOT be restored, THEN perform the following:

a. Dispatch AO with locked valve key to locally throttle RHR Hx outlet valves to approximately half open.

• A RHR Hx, HCV-625 handwheel

• B RHR Hx, HCV-624 handwheel

b.

WHEN conditions permit, THEN refer to AP-IA.I, LOSS OF INSTRUMENT AIR, to restore IA.

Zý1-

TITLE:

LOSS OF RHR WHILE OPERATING AT RCS REDUCED REV: 11 INVENTORY CONDITIONS PAGE 11 of 14 STEP ACTION/EXPECTED RESPONSE fRESPONSE NOT OBTAINED 15 Establish Conditions To Start RHR Pump:

a.

Check RHR cooling valve alignment NORMAL (Refer to Attachment NORMAL RHR COOLING)

b. Verify CCW cooling to RHR system IN SERVICE

c. Verify the following RCS conditions:

"o Core exit TC's LESS THAN 2000 F "o No visual steam at RCS vents "o RCS loop level GREATER THAN 30 INCHES

d.

RHR pump AVAILABLE

a. Manually or locally align valves as necessary.

b. Restore CCW cooling.

c.

Perform the following:

1) Start trending core exit TCs.

2)

Return to Step 5.

d.

Perform the following:

1) Start trending core exit TCs.

2) Place RCDT pumps in service (Refer to ER-RHR.1, RCDT OPERATION FOR CORE COOLING).

3) Return to Step 5.

LOSS OF RHR WHILE OPERATING AT RCS REDUCED INVENTORY CONDITIONS REV:

11 PAGE 12 of 14 STEP ACTION/EXPECTED RESPONSEI RESPONSE NOT OBTAINEDI CAUTION STARTING AN RHR PUMP MAY RESULT IN AN RCS LEVEL DECREASE DUE TO SHRINK OR VOID COLLAPSE.

R F

16 Restore RHR Flow:

a. Close RHR pump flow control valves o HCV-624 o HCV-625

b.

Place RHR Hx bypass valve, HCV-626, to MANUAL and close valve

c. Start one RHR pump

d. Ensure RHR flow - LESS THAN 1500 GPM

e.

Check RCS loop level THAN 30 INCHES GREATER

a. IF IA NOT available, THEN ensure AO has locally throttled RHR Hx outlet valves and go to step 16c.

d.

IF IA NOT available, THEN dispatch AO with locked valve key to locally adjust flow using RHR Hx outlet valves.

• A RHR Hx, HCV-625 handwheel o B RHR Hx. HCV-624 handwheel

e. Establish adequate makeup flow to stabilize RCS loop level at greater than 30 inches.

f.

Gradually increase RHR bypass flow to desired flowrate

g.

RHR flow -

RESTORED

g.

Perform the following:

1) Start trending core exit T/Cs.

2)

Place RCDT pumps in service (Refer to ER-RHR.1, RCDT OPERATION FOR CORE COOLING).

3) Return to Step 5.

h. Establish desired RCS cooldown rate

ITLE:

LOSS OF RHR WHILE OPERATING AT RCS REDUCED INVENTORY CONDITIONS

.1 REV:

11 PAGE 13 of 14

• STEPH ACTION/EXPECTED RESPONSEI RESPONSE NOT OBTAINEDI NOTE:

Consult with Plant Staff to determine alternatives for long term cooling.

17 Establish Stable Plant Conditions:

a. Verify Core Exit TC's

- LESS THAN 200°F

b.

Check RCS loop level:

"o Level GREATER THAN 30 INCHES "o Level STABLE

c.

Stop any running SI pump

d.

Stop any running charging pump

e. Maintain RCS level stable using RWST gravity feed as necessary 18 Check CCW System Operation:

o CCW pumps AT LEAST ONE RUNNING "o CCW to RHR Hxs, MOV-738A AND MOV-738B OPEN AS NECESSARY "o Annunciator A-21, COMP COOLING HX OUT HI TEMP EXTINGUISHED "o Annunciator A-22, CCW PUMP DISCHARGE LO PRESS - EXTINGUISHED "o Annunciator A-30, CCW PUMP INLET HEADER HI TEMP EXTINGUISHED

a. Continue cooling with RHR.

Return to Step 16d.

b. IF RCS loop level increasing, THEN reduce makeup rate to stabilize level.

IF RCS loop level decreasing, THEN return to Step 8.

e. Initiate makeup to the RCS using either of the following:

"o One charging pump at maximum flow

-OR "o One SI pump To restore CCW cooling to RHR Hxs, perform the following:

a. Ensure the standby CCW pump is running.

b. Open MOV-738A and MOV-738B as necessary.

IF CCW can NOT be restored, THEN continue attempts to restore CCW (Refer to AP-CCW.3, LOSS OF CCW PLANT SHUTDOWN).

EOP:

TITLE:

AP-RHR.2 LOSS OF RHR WHILE OPERATING AT RCS REDUCED REV:

11 SINVENTORY CONDITIONS PAGE 14 of 14 STP ACTION/EXPECTED RESPONSE[

RESPONSE NOT OBTAINEDI 19 Check Core Exit TC's:

Continue cooling with RHR.

Return to Step 16d.

o Temperature - LESS THAN 140°F o

Temperature -

STABLE OR DECREASING 20 Initiate Monitoring of RCS Temperature NOTE:

Refer to 0-9.3. NRC IMMEDIATE NOTIFICATION, for reporting requirements.

21 Notify Higher Supervision 22 Return To Procedure Or Guidance In Effect

.END -

LOSS OF RHR WHILE OPERATING AT RCS REDUCED INVENTORY CONDITIONS REV:

11 PAGE 1 of 1 AP-RHR.2 APPENDIX LIST TITLE

1)

ATTACHMENT NORMAL RHR COOLING (ATT-14.0)