ML20199F961

Monthly Operating Repts for Dec 1998 for Limerick Generating Station.With

ML20199F961
Person / Time
Site:	Limerick
Issue date:	12/31/1998
From:	Grimes J, Hinchey P PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9901220111
Download: ML20199F961 (6)

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4 PECO NUCLEAR nco % co, PO Box 2300 A Unit of PECO Energy -

Sanatoga, PA 19464-0920 l

i T.S.6.9.1.6 January 15,1999 Dxket Nos. 50-352 50-353 License Nos. NPF-39 NPF-85 i

~ ~U. S. Nuclear Regulatory Commission Attn: Document Contral Desk Washington, DC 2055'i t

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 I

month of December 1998 forwarded pursuant to Technical Specification 6.9.1.6.

l Very truly yours, P

Joseph P. Grimes 1

Director-Site Engineering 1

pah

\\j Enclosures.

cc:

H. J. Miller, Administrator, Region I, USNRC A. L. Burritt, USNRC Senior Resident Inspector LGS J. D von Suskil, Vice President, LGS g

G. H. Stewan, LGS Experience Assessment Branch, SSB2-4 S. A. Auve, LGS ISEG Branch, SSB4-2 9901220111 981231 PDR ADOCK.05000352 R

PDR.

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Docket No. 50-352 Attachment to Monthly Operating Report for December 1998 Limerick Generating Station Unit 1 December 1 through December'31,1998 j

1.

Narrative Summary of Operatino Experienge1 Unit 1 began the month of December 1998 at 100% of rated thermal power (RTP).

On December 4,1998 at 1252 hours0.0145 days <br />0.348 hours <br />0.00207 weeks <br />4.76386e-4 months <br />, power was reduced to 25% of RTP. The main turt>ine generator was taken off line at 1509 hours0.0175 days <br />0.419 hours <br />0.0025 weeks <br />5.741745e-4 months <br /> and the reactor was shutdown in preparation for the 1M32 planned maintenance outage at 1556 hours0.018 days <br />0.432 hours <br />0.00257 weeks <br />5.92058e-4 months <br />.

On December 14,1998 at 2041 hours0.0236 days <br />0.567 hours <br />0.00337 weeks <br />7.766005e-4 months <br />, the reactor mode switch was placed in start up.

The reactor was made critical on December 15, at 0205 hours0.00237 days <br />0.0569 hours <br />3.38955e-4 weeks <br />7.80025e-5 months <br /> and the main generator was synchronized to the grid on December 16, at 1010 hours0.0117 days <br />0.281 hours <br />0.00167 weeks <br />3.84305e-4 months <br />. Powerwas restored to 100% of RTP on December 19,1998 at 1830 hours0.0212 days <br />0.508 hours <br />0.00303 weeks <br />6.96315e-4 months <br />.

On December 20,1998 at 0810 hours0.00938 days <br />0.225 hours <br />0.00134 weeks <br />3.08205e-4 months <br />, power was reduced to 80% of RTP for a control rod pattem adjustment. Powerwac restored to 100% of RTP at 1642 hours0.019 days <br />0.456 hours <br />0.00271 weeks <br />6.24781e-4 months <br />.

On December 21,1998 at 2050 hours0.0237 days <br />0.569 hours <br />0.00339 weeks <br />7.80025e-4 months <br />, power was reduced to 85% of RTP for a control rod pattem adjustment. Power was restored to 100% of RTP on December 22

- at 1000 hours0.0116 days <br />0.278 hours <br />0.00165 weeks <br />3.805e-4 months <br />.

Unit 1 ended this month at 100 % RTP.

1 II.

Challenoes to Main Steam Safety Relief Valves There were no challenges to the Main Steam Safety Relief Valves during the month of December. There have been no challenges to the Main Steam Safety Relief Valves i

for the year 1998.

n OPERATING DATA REPORT DOCMET NO 50-352 DATE JANUARY 15,1999

~

COMPLETED BY PECO ENERGY COMPANY P. A. HINCHEY REPORTS ENGINEER SITE ENGINEERING LIMERICK GENERATING STATION TELEPHONE (610)7184797 OPERATING STATUS

1. UNIT NAME.

LIMERICK UNIT 1 1

2. REPORTING PERIOD *.

DECEMBERd998

3. DESIGN ELECTRICAL RATING (NET MWE):

11_34,

4. MAXIMUM DEPENDABLE CAPACITY (GROSS MWE):

t174 j

5. MAXIMUM DEPENDABLE CAPACITY (NET MWE):

1134 THIS MONTH YR-TO-DATE CUMULATNE

6. NUMBER OF HOURS REACTOR WAS CRITICAL 493.8 7,278.2 98,084.6

7. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 0.0

8. HOURS GENERATOR ON-LINE 481.0 7.081.8 94,355.8

9. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0

10. NET ELECTRICAL ENERGY GENERATED (MWH) 489,141 7,449,116 93,000,694 o

UNIT SHUTDOWNS DOCKETNO. 50-352 UNIT NAME LIMERICK UNIT 1 DATE JANUARY 15,iiiGE COMPLETED BY PECO ENERGY COMPANY P. A. HINCHEY REPORTS ENGINEER SITE ENGINEERING LIMERICK GENERATING STATION REPORT MONTH DECEMBER 1998 TELEPHONE (610)7183797 METHOD OF CAUSE AND CORRECTIVE TYPE DURATION REASON SHUTTING DOWN ACTION TO NO.

DATE (1)

(HOURS)

(2)

REACTOR (3)

PREVENT RECURRENCE 318 961204 S

283.0 B

1 REACTOR POWER WAS REDUCED TO 0% DUE TO MAINTENANCE OUTAGE 1M32 TO REPAIR DAMAGED FUEL 319-981220 S

H 4

REACTOR POWER WAS REDUCED TO 80% DUE TO CONTROL ROD PATTERN ADJUSTMENT.

320 961221 S

H 4

REACTOR POWER WAS REDUCED TO e5% DUE TO CONTROL ROD PATTERN ADJUSTMENT.

TOTAL HOURS 283.0 t

l (1)

(2)

(3)

F-FORCED REASON METHOD S -SCHEDULED A-EQUIPMENT FAILURE (EXPLAIN) 1 - MANUAL B-MAINTENANCE OR TEST 2-MANUAL SCRAM C-REFUEUNG 3-AUTOMATIC SCRAM

' D-REGULATORY RESTRICTION 4-OTHER (EXPLAIN)

E - OPERATOR TRA!NING + LICENSE EXAMINATION F-ADMINISTRATIVE G-OPERATIONAL ERROR (EXPLAIN)

H -OTHER (EXPLAIN)

Docket No. 50-353 Attachment to Monthly Operating Report for December 1998 Limerick Generating Station Unit 2 December 1 through December 31,1998 1.

Narrative Summary of Operatina Experiences Unit 2 began the month of December 1998 at 100% rated thermal power (RTP).

On December 6,1998 at 0025 hours2.893519e-4 days <br />0.00694 hours <br />4.133598e-5 weeks <br />9.5125e-6 months <br />, power was reduced to 95% of RTP for main turbine valve testing. Power was restored to 100% of RTP at 0219 hours0.00253 days <br />0.0608 hours <br />3.621032e-4 weeks <br />8.33295e-5 months <br />.

On December 12,1998 at 0035 hours4.050926e-4 days <br />0.00972 hours <br />5.787037e-5 weeks <br />1.33175e-5 months <br />, power was reduced to 87% of RTP for main turbine control valve testing and control rod scram time testing. Power was further reduced to 75% RTP for a control rod pattem adjustment at 05:30 hours. Power was restored to 100% of RTP at 1500 hours0.0174 days <br />0.417 hours <br />0.00248 weeks <br />5.7075e-4 months <br />.

On December 13,1998 at 2323 hours0.0269 days <br />0.645 hours <br />0.00384 weeks <br />8.839015e-4 months <br />, power was reduced to 96% of RTP for main tuitine valve testing. Power was restored to 100% of RTP at 2354 hours0.0272 days <br />0.654 hours <br />0.00389 weeks <br />8.95697e-4 months <br />.

I

\\

l On Decernber 19,1998 at 2225 hours0.0258 days <br />0.618 hours <br />0.00368 weeks <br />8.466125e-4 months <br />, power was reduced to 95% of RTP for main turbine valve testing. Power was restored to 100% of RTP at 2353 hours0.0272 days <br />0.654 hours <br />0.00389 weeks <br />8.953165e-4 months <br />.

On December 26,1998 at 2210 hours0.0256 days <br />0.614 hours <br />0.00365 weeks <br />8.40905e-4 months <br />, commenced power reduction to 95% of RTP for main turbine valve testing. Power was restored to 100% of RTP at 2345 hours0.0271 days <br />0.651 hours <br />0.00388 weeks <br />8.922725e-4 months <br />.

I Unit 2 ended this month at 100% of RTP.

II.

Challenaes to Main Steam Safety Relief Valves There were no challenges to the Main Steam Safety Relief Valves during the month of December. There have been no challenges to the Main Steam Safety Relief Valves for the year 1998.

t 1

i

e OPERATING DATA REPORT

^

i-DOCKET NO. 50-353 DATE JANUARY 15,1999 r

• COtFLETED BY PECO ENERGY COMPANY P. A. HINCHEY REPORTS ENGINEER SITE ENGINEERING LIMERICK GENERATING STATION TELEPHONE (610)718-3797 t

i OPERATING STATUS

1. UNIT NAME:

UMERICK UNIT 2

2. REPORTINGFERIOD-DECEMBER,1998

3. DESIGN ELECTRICAL RATING (NET MWE):

1115

4. MAXIMUM DEPENDABLE CAPACITY (GROSS MWE):

1155 S. MAXIMUM DEPENDABLE CAPACITY (NET MWE):

1115, THIS MONTH YR-TO-DATE CUMULAT1VE

6. NUMBER OF HOURS REACTOR WAS CRITICAL 744.0 8,402.3 72,549.3

7. REACTOR RESERVE SHUTDOWN HOUkS 0.0 0.0 0.0

8. HOURS GENERATOR ON-LINE 744.0 8,347.4 71.143.1

9. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0

10. NET ELECTRICAL ENERGY GENERATEC'(MWH) 838,007 9.257,884 73,889,686

UNIT SHUTDOWNS DOCKET NO. 50-353 UNITNAME LIMERICKUNIT2 DATE JANUARY 15,1999 COWLETED BY PECO ENERGY COMPANY P. A. HINCHEY REPORTS ENGINEER SITE ENGINEERING LIMERICK GENERATING STATION I

REPORT MONTH DECEMBER,1998 TELEPHONE (610)718-3797 l

METHOD OF CAUSE AND CORRECTIVE TYPE DURATION REASON SHUTTING DOWN ACTION TO NO.

DATE (1)

(HOURS)

(2)

REACTOR (3)

PREVENT RECURRENCE 339 961206 S

B 4

REACTOR POWER WAS REDUCED TO 95% DUE TO MAIN TURBINE VALVE TESTING.

W 981212 S

H 4

REACTOR POWER WAS REDUCED TO 87% FOR MAIN TURBINE VLV TESTING AND FURTHER REDUCED TO 75% DUE TO CONTROL ROD PATTERN AD.'U57 MENT.

341 961213 S

B 4

REACTOR POWER WAS REDUCED TO 96% DUE TO MAIN TURBINE VALVE TESTING.

342 961219 S

B 4

REACTOR POW"dR WAS REDUCED TO 95% DUE TO MAIN TURBINE VALVE TESTING.

343 961226 S

B 4

REACTOR POWER WAS REDUCED TO 95% DUE TO MAIN TURBINE VALVE TESTING.

TOTAL HOURS 1

(1)

(2)

(3)

F-FORCED REASON METHOD S-SCHEDULED A-EQUIPMENT FAILURE (EXPLAIN) 1 - MANUAL B-MAINTENANCE OR TEST 2-MANUAL SCRAM C - REFUELING 3-AUTOMATIC SCRAM D-REGULATORY RESTRICTION 4-OTHER (EXPLAIN)

E - OPERATOR TRAINING + LICENSE EXAMINATION F-ADMINISTRATIVE G-OPERATIONAL ERROR (EXPLAIN}

H-OTHER (EXPLAIN)

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