Text

Monthly Operating Repts for May 1993 for Limerick Generating Station,Units 1 & 2
	ML20045B915
Person / Time
Site:	Limerick
Issue date:	05/31/1993
From:	Helwig D, Meck K; PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	; NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
	NUDOCS 9306210260
	Download: ML20045B915 (12)
	v • d • e

s T.S.6.9.1.6 4

PHILADELPHIA ELECTRIC COMPANY LIMERICK GENERATING STATION P. O. BOX 2300 SANATOGA, PA 19464-2300 (215) 327-1200, EXT. 30(X)

June 11, 1993 DAVID R. HELWIG VICE PRESIDENT LIMERICK GENERATING STAi!ON 50-353 License Nos.

NPF-39 NPF-85 U.

S.

Nuclear Regulatory Commission Attn:

Document Control Desk Washington, DC 20555

Subject:

Limerick Generating Station Monthly Operating Report For Units 1 and 2 Enclosed are the monthly operating reports for Limerick Units 1 and 2 for the month of May 1993 forwarded pursuant to' Technical Specification 6.9.1.6.

Very truly yours, r

JJM/lz Enclosures cc:

T.

Martin, Administrator, Region I, USNRC (w/ enclosures)

N.

S.

Perry, USNRC Senior Resident Inspector LGS (w/ enclosures) 210002 9306210260 930531 1

PDR ADOCK 0500035g R

PDR

. Q.

~

Docket No. 50-352 Attachment to Monthly Operating Report for May 1993 Limerick Generating Station Unit 1 May 1 through May 31, 1993 I.

Narrative Summary of Operating Experiences Unit 1 began this operating period at 100% of rated thermal power (RTP).

On May 6, 1993 at 1349 hours0.0156 days 0.375 hours 0.00223 weeks 5.132945e-4 months a Reactor Water Cleanup (RWCU)

Isolation occurred due to high room temperatures as a result of Reactor Enclosure Heating Ventilation and Air Conditioning System being removed from service for maintenance work.

The RWCU System was returned to service at 1404 hours0.0163 days 0.39 hours 0.00232 weeks 5.34222e-4 months .

r On May 14, 1993 at 0842 hours0.00975 days 0.234 hours 0.00139 weeks 3.20381e-4 months power was reduced to 91% RTP for Main Turbine Valve Testing.

Power was restored to 100%

RTP at 1005 hours0.0116 days 0.279 hours 0.00166 weeks 3.824025e-4 months .

On May 21, 1993 at 1246 hours0.0144 days 0.346 hours 0.00206 weeks 4.74103e-4 months the

'lB' Reactor Feed Pump Min Flow Valve failed open.

Reactor level decreased to 28 inches (from 35 inches).

Reactor power had increased to 100.4% RTP.

Operational transient procedures were entered, power was reduced to 99% RTP and a manual valve in-service with the Reactor Feed Pump Min Flow Valve was closed.

The cause of the valve to fail open was due to an unexpected component failure on the valve control air regulator.

Power was rectored to 100% RTP at 1345 hours0.0156 days 0.374 hours 0.00222 weeks 5.117725e-4 months .

On May 22, 1993 at 0400 hours0.00463 days 0.111 hours 6.613757e-4 weeks 1.522e-4 months a power reduction began so that each condensate pump could be removed from service one at a time to align pump bearings.

Power-was reduced to 75% RTP by 0443 hours0.00513 days 0.123 hours 7.324735e-4 weeks 1.685615e-4 months .

Following the maintenance activities power was returned to 100% RTP at 0922 hours0.0107 days 0.256 hours 0.00152 weeks 3.50821e-4 months on May 23, 1993.

On May 23 at 2210 hours0.0256 days 0.614 hours 0.00365 weeks 8.40905e-4 months power was reduced to 96% RTP for a control rod pattern adjustment and then restored to 100% RTP.

Unit 1 ended this operating period at 100% of rated thermal power.

II. Challenges to Main Steam Safety Relief Valves There were no challenges to the Main Steam Safety Relief Valves during the month of May.

e

AVERQGE DQ1LY UNIT POWER LEVEL DOCKET MO. 50 - 352 UNIT LIMERICK UNIT 1 DATE JUNE 10,1993 COMPANY PHILADELPHIA ELECTRIC COMPANY KARL MECK REPORTS SUPERVISOR BUSINESS UNIT LIMERICK GENERATING STATION TELEPHONE (215)-327-1200 EXTENSION 3320

______~_.. __.___. __._____

MONTH MAY 1993 OAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MwE-NET)

(MWE-NET) 1 1043 17 1047 2

1043 18 1048 3

1044 19 1049 4

1044 20 1043 5

1037 21 1047 6

1046 22 824 7

1040 23 976 8

1045 24 1044 9

1039 25 1042 10 1036'-

26 1049 11 1032 27 1047 12 1038 28 1039 13 1047 29 1045 14 1039 30 1051 15 1047 31 1050 16 1037 we g

1

+

--m w

OPERSTING DaTQ REPORT DOCMET NO. 50 - 332

+

DATE JUNE 10.1993 COMPLETED BY PHILADELPHIA ELECTRIC COMPANY MARL MECK REPORTS SUPERVISOR BUSINESS UNIT LIMERICK GENERATING STATION TELEPHONE (215) 327-1200 EXTENSION 3320 OPERATING STATUS 1.

UNIT NAME:-LIMERICK UNIT 1 NOTES: THERE WAS ONE LOAD DROP 2.

REPORTING PERIOD:

MAY. 1993 GREATER THAN 20% TO 3.

LICENSED THERMAL POWER (MWT):

3293 CLEAN A CONDENSER 4 NAMEPLATE RATING (GROSS MwE) 1138 WATERBOX AND TO ALIGN g

5. DESIGN ELECTRICAL RATING (HET MWE):

1055 CONDENSATE PUMP MOTOR 6.

MAXIMUM DEPENDABLE CAPACITY (GROSS MwE): 1092 BEARINGS.

7. MAXIMUM DEPENDABLE CAPACITY (NET MwE):

1055

- 8.

IF CHANGES OCCUR IN CAPACITY RATINGS (ITEMS NUMBER 3 THROUGH 7) SINCE LAST REPORT. GIVE REASONS:

9.

power LEVEL TO WHICH RESTRICTED. IF ANf (NET MwE):

10. REASONS FOR RESTRICTIONS, IF ANY:

THIS MONTH VR-TO-DATE CUMULATIVE

11. HOURS IN REPORTING PERIOD 744 3.623 64.247

12. NUMBER OF HOURS REACTOR WAS CRITICAL 744.0 3.623.0 51.172.2

13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 0.0

14. HOURS GENERATOR ON-LINE 744.0 3.623.0 50,181.2

15. UNIT RESERVE SHuiDOWN HOURS 0.0 0.0 0.0

16. GROSS THERMAL ENERGY GENERATED (MWM).

2.426.112 11.869.625 153.603.090

17. GROSS ELECTRICAL ENERGY GENERATED (MwH) 797.100 3.924.900 49.901.040

18. NET ELECTRICAL ENERGY GENERATED (MWH) 769.358 3.788.338 47.828,855

__~_-__.-___

PAGE 1 OF 2

_... ~,

OPERATING DATA REPORT (CONTINUED)-

DOCnET NO. 50 - 352 a.

DATE JUNE 10.1993 THIS MONTH YR-TO-DATE COMULATIVE

19. UNIT SERVICE FACTOR 100.0 100.0 78.1

20. UNIT AVAILABILITY FACTOR 100.0 100.0 78.1

21. UNIT' CAPACITY FACTOR (USING MDC NET) 98.0 99.1 70.6

22. UNIT CAPACITY FACTOR (USING DER NET) 98.0 99.1 70.6

23. UNIT FORCED OUTAGE RATE O.0 0.0 4.9 24 SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS (TYPE, OATE. AND DURATION OF EACH)

25. IF 5HUTDOWN AT END OF REPORT PERIOD. ESTIMATED DATE OF STARTUP:

26. UNITE IN TEST STATUS (PRIOR TO COMMERCIAL OPERATION):

FORECAST ACHIEVED INITIAL CRITICALITY 12/19/84 12/22/u4 INITIAL ELECTRICITY M10 APRIL 65 4/13/85 COMMERCIAL OPERATION IST OTR 86 2/01/HG I

PAGE 2 OF 2 l

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UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50 - 352 UNIT NAME LIMERICK UNIT 1

^

DATE JUNE 10.1993 REPORT MONTH MAY. 1993 COMPLETED BV PHILADELPHIA ELECTRIC COMPANY KARL MECK REPORTS SUPERVISOR BUSINESS UNIT LIMERICK GENERATING STATION TELEPHONE (215) 327-1200 EXTENSION 3320' METHOD OF LICENSEE SYSTEM COMPONENT.

CAUSE AND CORRECTIVE

, TYPE DURATION REASON SHUTTING DOWN EVENT CODE CODE ACTION TO NO.

DATE (1)

(HOURS)

(2)

REACTOR (3)

REPORT a (4)

(5)

PREVENT RECURRENCE B

930514 S

000.0 8

4 N/A HA INSTRU REACTOR POWER W45 PEDUCED TO 91% FOR MAIN TURBINE CONTROL VALVE TESTING.

9 930522 S

000.0 B

4 N/A HF HTEMCH REACTOR POmER WAS REDUCED TO 75% TO CLEAN THE B LP CONDENSER WATERBOX AND TO ALIGN THE A.B.

& C CONDENSATE PUMP MOTOR BEARINGS.

10 930523 5

000.0 B j 4

N/A RB CONROD REACTOR PunER WAS HEDUCED TO 96% TO PERFORM A CON 1ROL ROD PATTERN ADJUSTMENT.

(1)

(2)

(3)

(4)

F - FORCED REASON METHOD EXHIBIT G - INSTRUCTIONS i

5-SCHEDULED A - EQUIPMENT FAILURE (EXPLAIN) 1 - MANUAL FOR PREPARATION OF DATA B - MAINTENANCE OR TEST 2 - MANUAL SCRAM.

ENTRY SHEETS FOR LICENSEE C - REFUELING-3 - AUTOMATIC SCRAM.

EVENT REPORT (LER)

D - REGULATORY RESTRICTION 4 - OTHER (EXPLAIN)

FILE (NUREG-0161)

E - OPERATOR TRAINING + LICENSE EXAMINATION F - ADMINISTRATIVE (5) l G - OPERATIONAL ERROR (EAPLAIN)

H - OTHER(EFPLAIN)

EAHIBIT 1'-

SAME SOURCE I

t

,n.-

,~-.--,,.n.-

'r Docket No. 50-353 Attachment to_ Monthly Operating Report for i

May 1993 i

Limerick Generating Station Unit 2 l

May 1 through May 31, 1993 i

I.

Narrative Summary of Operating Experiences Unit 2 began this operating period at 100% of rated thermal-power (RTP).

On May 1, 1993 at 0142 hours0.00164 days 0.0394 hours 2.347884e-4 weeks 5.4031e-5 months a power reduction began due to minimum generation requirements.

At 0303 hours0.00351 days 0.0842 hours 5.009921e-4 weeks 1.152915e-4 months RTP was at 60%.

On May 2, 1993 at 1420 hours0.0164 days 0.394 hours 0.00235 weeks 5.4031e-4 months power was restored to 100%

RTP.

On May 3, 1993 at 0517 hours0.00598 days 0.144 hours 8.54828e-4 weeks 1.967185e-4 months power was reduced to 98% RTP for a rod pattern adjustment and then restored to 100% RTP.

On May 4, 1993 at 0450 hours0.00521 days 0.125 hours 7.440476e-4 weeks 1.71225e-4 months power was reduced to 98% RTP for a rod pattern adjustment and then restored to 100% RTP.

On May 15, 1993 at 2330 hours0.027 days 0.647 hours 0.00385 weeks 8.86565e-4 months an Electro Hydraulic Control (EHC) leak was identified on the number 2 Main Turbine Control Valve Servo.

Power was reduced at 0424 hours0.00491 days 0.118 hours 7.010582e-4 weeks 1.61332e-4 months on May 16, 1993 per procedure.

Power was reduced to 19% RTP at 0630.

At 0657 the Main Turbine was removed from service to repair the EHC leak.

At 1412 hours0.0163 days 0.392 hours 0.00233 weeks 5.37266e-4 months the Turbine / Generator was placed in service.

At 0155 hours0.00179 days 0.0431 hours 2.562831e-4 weeks 5.89775e-5 months on May 17, 1993 power was restored to 100% RTP.

On May 17, 1993 at 1540 hours0.0178 days 0.428 hours 0.00255 weeks 5.8597e-4 months power was reduced to 90% RTP for a control rod pattern adjustment and then returned to 100% RTP.

On May 23, 1993 at 1200 hours0.0139 days 0.333 hours 0.00198 weeks 4.566e-4 months power was reduced to 95% RTP for a control rod pattern adjustment and then returned to 100% RTP.

On May 29, 1993 at 0910 hours0.0105 days 0.253 hours 0.0015 weeks 3.46255e-4 months power was reduced to 90% RTP for Main Turbine Valve testing.

Power was restored to 100%

RTP at 1130 hours0.0131 days 0.314 hours 0.00187 weeks 4.29965e-4 months .

Unit 2 ended this operating period at 100% of rated thermal I

power.

II. Challenges to Main Steam Safety Relief Valves i

There were no challenges to the Main Steam Safety Relief Valves during the month of May.

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OPERATING DATA REPORT (CONTINUED)

. DOCKET NO. 50 - 353 g

DATE JUNE 10.1993 THIS MONTH VR-TO-DATE CUMULATIVE

19. UNIT SERVICE FACTOR 99.0 59.4 83.4

20. UNIT AVAILABILITY FACTOR 99.0 59.4 83.4

___~________

21. UNIT CAPACITY FACTOR (U5ING MDC NET) 96.3 53.6 79.4

22. UNIT CAPACITY FACTOR (USING DER NET) 96.3 53.6 79.4

23. UNIT FORCED OUTAGE RATE 1.0 7.8 4.9

24. SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS (TYPE. DATE. AND DURATION OF EACH):

25. IF 5HUTDOWN AT END OF REPORT PERIOD, ESTIMATED DATE OF STARTUP

26. UNITS IN TEST STATUS (PRIOR TO COMMERCIAL OPERATION):

FORECAST ACHIEVED INITIAL CRITICALITY 08/12/89 08/12/89 INITIAL ELECTRICITY 09/01/89 09/01/89 COMMERCIAL OPERATION 02/01/90 01/08/90 PAGE 2 OF 2

~

UNIT SHUTDOWMS QND POWER REDUCTIONS DOCKET NO. 50 - 353 UNIT NAME LIMERICK UNIT 2 DATE JUNE 10.1993 REPORT MONTH MAY. 1993 COMPLETED BY FHILADELPHIA ELECTRIC COMPANY kARL MECK REPORTS SUPERVISOR BUSINESS UNIT LIMERICK GENERATING STATION TELEPHONE (215) 327-1200 EXTENSION 3320

\\

METHOD OF LICENSEE SYSTEM COMPONENT CAUSE AND CORRECTIVE TYPE l DURATION REASON SHUTTING DOWN EVENT CODE CODE ACTION TO NO.

DATE (1)! (HOURS)

(2)

REACTOR (3)

REPORT a (4)

(5)

PREVENT RECURRENCE I

19 930501 5

000.0 H

4 N/A ZZ ZZZZZZ REACTOR POWER WAS INITIALLY REDUCED TO 90%

DUE TO LOW ELECTRICAL DISTRIBUTION SYSTEM DEMAND. POWER wAS FURTHER REDUCED TO 60% TO l

ALIGN THE 2C CONDENSATE PUMP MOTOR BEARING.

UPON COMPLETION OF THE ALIGNMENT. POWER REMAINED AT 60% DUE TO LOW SYSTEM DEMAND.

20 930503 5

000.0 B

4 N/A RB CONROD REACTOR POWER WAS REDUCED TO 98% TO PERFORM A CONTROL ROD PATTERN ADJUSTMENT.

21 l 930504 5

000.0 B

4 N/A RB CONROD REACTOR POWER WAS REDUCED TO 98% TO PERFORM A CONTROL ROD PATIERN ADJUSTMENT.

22 930515 F

007.3 A

4 N/A HA PIPEXX REACTOR POWER WAS REDUCED TO 19% AND THE TURBINE TAKEN OFF LINE TO REPAIR A LEAK IN THE ELECTRO-HYDRAULIC CONTROL SYSTEM.

l 23 930517 S

000.0 8

4 N/A RB CONROD REACTOR POnER WAS REDUCED TO 90% TO PERFORM A CONTROL ROD PATTERN ADJUSTMENT, l

24 930523 S

000.0 l

8 4

N/A RB CONROD REACTOR POWER WAS REDUCED TO 95% TO PERFORM l

A CONTROL ROD PATTERN ADJUSTMENT..

i l

(1)

(2)

(3)

(4)

METHOD EXHIBIT G - INSTRUCTIONS F - FORCED REASON (EXPLAIN) 1 - MANUAL FOR PREPARATION OF DATA S - SCHEDULED A - EQUIPMENT FAILURE B - MAINTENANCE OR TEST 2 - MANUAL SCRAM.

ENTRY SHEETS FOR LICENSEE C - REFUELING 3 - AUTOMATIC SCRAM.

EVENT REPORT (LER) 0 - REGULATORY RESTRICTION 4 - OTHER (EXPLAIN)

FILE (HUREG-01G1)

E - OPERATOR TRAINING + LICENSE EXAMINATION F - ADMINISTRATIVE (5)

G - OPERATIONAL ERROR (EXPLAIN)

EXHIBIT I - SAME SOURCE H - OTHER(EXPLAIN) j

=

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50 - 353 UNIT NAME LIMERICK

' UNIT 2 DATE JUNE 10,1993 REPORT MONTH MAv. 1993 COMPLETED BY PHILADELPHIA ELECTRIC COMPANY MARL MECK REPORTS SUPERVISOR BUSINESS UNIT LIMERICK GENERATING STATION T E L E Pt+0N E (215) 327-1200 EXTENSION 3320 METHOD OF LICENSEE SYSTEMjCOMPONENT CAUSE AND CORRECTIVE TYPE OURATION REASON SHUTTING DOwN EVENT COOE I CODE ACTION TO NO.

DATE (1)

(HOURS)

(2)

REACTOR (3)

REPORT *

(4) l (5)

PREVENT RECURRENCE I

I 25 930529 l 5 000.0 B

4 N/A HA l INSTRU REACTOR POnER WAS REDUCED TO 90% TO PERFORM t

MAIN TURBINE CONTROL VALVE TESTING.

j._...

(

l 7.3 (1)

(2)

(3)

(4)

F - FORCED REASON METHOD ExHIDIT G - INSTRUCTIONS S - SCHEDULED A - EQUIPMENT FAILURE (EXPLAIN) 1 - M A rsV A L FOR PREPARATION OF DATA B - MAINTENANCE OR TEST 2 - MANUAL SCRAM.

ENTRY SHEETS FOR LICENSEE C - REFUELING 3-AUTOMATIC SCRAM.

EVENT REPORT (LER)

D-REGULATORY RESTRICTION 4 - OTHER (EXPLAIN)

FILE (NUREG-0161)

E - OPERATOR TRAINING + LICENSE EXAMINATION F - ADMINISTRATIVE (5)

G - OPERATIONAL ERROR (EXPLAIN)

H - OTHER(EXPLAIN)

EAnlBIT I - SAME SOURCE i

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-

ML20045B915

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