ML20151X351

Monthly Operating Repts for Aug 1998 for Limerick Generating Station Units 1 & 2.With

ML20151X351
Person / Time
Site:	Limerick
Issue date:	08/31/1998
From:	Grimes J, Hinchey P PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9809170019
Download: ML20151X351 (7)

Text

Lim: rick Gmtre. ting Stxtion

. =

-=.

PECO NUCLEAR  ;!f2"m?"*""

A UNir or PECO Emucy Sanatoga PA 19464-0920 T.S.6.9.1.6 September 14,1998 Docket Nos. 50-352 50-353 License Nos. NPF-39 NPF-85 U. S. Nuclear Regulatory Commission Attn: Docament Control Desk Washington, DC 20555 l

Subject:

Limerick Generating Station j Monthly Operating Report For Units 1 and 2 Enclosed are the monthly operating reports for Limerick Units 1 and 2 for the month of August 1998 forwarded pursuant to Technical Specification 6.9.1.6.

Very truly yours,

-Josebh P. Grimes Director - Site Engineering pah Enclosures cc: H. J. Miller, Administrator, Region I, USNRC er h A. L. Burritt, USNRC Senior Resident Inspector LGS /

J. D. von Suskil, Vice President, LGS G. H. Stewart, LGS Experience Assessment Branch, SSB2-4 S. A. Auve, LGS ISEG Branch, SSB4-2 i' [ ,

O N 352 PDR

. )

Docket No. 50-352 Attachment to Monthly )

Operating Report for ?

August 1998 i

Limerick Generating Station Unit 1 August i through August 31,1998

1. Narrative Summarv of Operatino Experiences Unit 1 began the month of August 1998 at 22% of rated thermal power (RTP).

l August 1,1998 at 0501 hours0.0058 days <br />0.139 hours <br />8.28373e-4 weeks <br />1.906305e-4 months <br />, the main turbine generator was synchronized to the grid after an EHC leak on the #4 main turbine control valve was repaired. (

August 2,1998 at 1200 hours0.0139 days <br />0.333 hours <br />0.00198 weeks <br />4.566e-4 months <br /> Power was restored to 100% of RTP.

On August 3,1998 at 0018 hours2.083333e-4 days <br />0.005 hours <br />2.97619e-5 weeks <br />6.849e-6 months <br />, power wcs reduced to 82% of RTP for a control rod pattern adjustment. Power was restored to 100% of RTP at 0356 hours0.00412 days <br />0.0989 hours <br />5.886243e-4 weeks <br />1.35458e-4 months <br />.  !

On August 6,1998 at 1330 hours0.0154 days <br />0.369 hours <br />0.0022 weeks <br />5.06065e-4 months <br />, power was reduced to 95% of RTP for a control rod pattern adjustment. Power was restored to 100% of RTP at 1810 hours0.0209 days <br />0.503 hours <br />0.00299 weeks <br />6.88705e-4 months <br />.

On August 10,1998 at 1426 hours0.0165 days <br />0.396 hours <br />0.00236 weeks <br />5.42593e-4 months <br />, power was reduced to 90% of RTP due to loss of the Perklomen pumps for cooling tower make-up. Power was restored to 100% of RTP i at 1736 hours0.0201 days <br />0.482 hours <br />0.00287 weeks <br />6.60548e-4 months <br />. l 1

On Augu!t 16,1998 at 0200 hours0.00231 days <br />0.0556 hours <br />3.306878e-4 weeks <br />7.61e-5 months <br />, power was reduced to 95% of RTP for main j turbine valve testing. Power was restored to 100% of RTP at 0500 hours0.00579 days <br />0.139 hours <br />8.267196e-4 weeks <br />1.9025e-4 months <br />.

Unit i ended this month ~at 100 % RTP.

i 11.' Challences to Main Steam Safety Ref sf Valves There were no challenges to the Main Steam Safety Relief Valves during the month of August. There have been no challenges to the Main Steam Safety Relief Valves year-to-date. I J

l

OPERATING DATA REPORT DOCKET NO. 50 -352 DATE SEPTEMBER 14,1998 ~

COMPLETED BY PECO ENERGY COMPANY P. A. HINCHEY REPORTS ENGINEER SITE ENGINEERING

- LIMERICK GENERATING STATION TELEPHONE (610)718-3797 OPERATING STATUS

1. UNIT NAME.

LIMERICK UNIT 1

2. REPORTING PERIOO:

AUGUST 1998

3. DESIGN ELECTRICAL RATING (NET MWE): 1134

4. MAXIMUM DEPENDABLE CAP /4 TTY (GROSS MWE): 1174

5. MA)0 MUM DEPENDABLE CAPACITY (NET MWE): 1134 THIS MONTH YR-TO-DATE . CUMIX.ATIVE

6. NUMBER OF HOURS REACTOR WAS CRITICAL - 744.0 4,500.4 93,385.8

7. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 ' O.0

8. HOURS GENERATOR ON-LINE 73A.0 4,415.8 91,700.8

9. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0

10. NET ELECTRICAL ENERGY GENERATED (MWH) 815,905 4,573,301 90,733,879 1

'b

. = _ _ ._ . .

UNIT SHUTDOWNS .

DOCMETNO. 50-352 .

UNITNAME LIMERICKUN!T1 -

DATE SEPTmnsq14,1gge COMPLETED BY PECO ENERGYCOWANY P. A.HINCHEY REPORTS ENGINEER SITE ENGINEERING UMERICK GENERATING STATION REPORT MONTH AUGUST,1998 TELEPHONE (610)7183797 METHOD OF CAUSE AND CORRECTNE TYPE DURATION _ REASON SHUTTING DOWN ACTION TO NO. DATE '(1) (HOURS) (2) REACTOR (3) PREVENT RECURRENCE 300 900001 F. 5.0 A 4 REACTOR POWER WAS REDUCED TO 0% BECAUSE OF .

CONTINUATION OF FORCED OUTAGE TO REPAIR EHC LEAK.

REACTOR POWER WAS RESTORED TO 100% AFTER REPAIRS WERE COMPLETED 301 900833 S H 4 REACTOR POWER WAS REDUCED TO 82% TO PERFORM ROD PATTERN ADJUSTMENT.

302 Canana .S H 4 REACTOR POWER WAS REDUCED TO 96% DUE TO ROD PATTERN ADJUSTMENT.

303 980610 F F. 4 REACTOR POWER WAS REDUCED TO 90% DUE TO LOSS OF COOUNG TOWER MAKE-UP.

304 900816 S B 4 REACTOR POWER WAS REDUCED TO 95% DOE TO MAIN TURBINE VALVE TESTING.

l TOTAL HOURS 5.0 l

(1) (2) (3)

F-FORCED REASON . [ METHOD S -SCHEDULED A- EQUIPMENT FAILURE (EXPl.AIN) 1 - MANUAL B -MAINTENANCE OR TEST 2-MANUAL SCRAM C-REFUEUNG 3- AUTOMATIC SCRAM D-REGUt.ATORY RESTRICTION 4-OTHER (EXPUUN)

E - OPERATOR TRAINING + LICENSE EXAMINATION F - ADMIN *cTRATNE G-OPERATIONAL ERROR (EXPLAIN)

H-OTHER (EXPLAIN)

1 1

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

1. Harrative Summary of Operatino Experiences Unit 2 began the month of August 1998 at 1000% rated thermal power (RTP).

August 1,1998 at 2305 hours0.0267 days <br />0.64 hours <br />0.00381 weeks <br />8.770525e-4 months <br />, power was reduced to 96% of RTP for main turbine valve testing. Power was restored to 100% of RTP on August 2,1998 at 0120 hours0.00139 days <br />0.0333 hours <br />1.984127e-4 weeks <br />4.566e-5 months <br />.

August 8,1998 at 2330 hours0.027 days <br />0.647 hours <br />0.00385 weeks <br />8.86565e-4 months <br />, power was reduced to 96% of RTP for main turbine valve testing. Power was further reduced to 85% to scram time test and restore control rod 06-31. Power was restored to 100% of RTP on August 9,1998 at 0340 hours0.00394 days <br />0.0944 hours <br />5.621693e-4 weeks <br />1.2937e-4 months <br />.

On August 10,1998 at 1423 hours0.0165 days <br />0.395 hours <br />0.00235 weeks <br />5.414515e-4 months <br />, power was reduced to 90% of RTP due to loss of the Perkiomen pumps for cooling tower make-up. Power was restored to 100% of RTP at 1651 hours0.0191 days <br />0.459 hours <br />0.00273 weeks <br />6.282055e-4 months <br />.

August 15,1998 at 2235 hours0.0259 days <br />0.621 hours <br />0.0037 weeks <br />8.504175e-4 months <br />, power was reduced to 96% of RTP for main turbine valve testing. Power was restored to 100% of RTP on August 16,1998 at 2350 hours0.0272 days <br />0.653 hours <br />0.00389 weeks <br />8.94175e-4 months <br />. j l

August 23,1998 at 0053 hours6.134259e-4 days <br />0.0147 hours <br />8.763227e-5 weeks <br />2.01665e-5 months <br />, power was reduced to 96% of RTP for main turbine l valve testing. Power was further reduced to 89% of RTP for a control rod pattem I adjustment at 0153 hours0.00177 days <br />0.0425 hours <br />2.529762e-4 weeks <br />5.82165e-5 months <br />. Power was restored to 100% of RTP at 0430 hours0.00498 days <br />0.119 hours <br />7.109788e-4 weeks <br />1.63615e-4 months <br />.

August 29,1998 at 2144 hours0.0248 days <br />0.596 hours <br />0.00354 weeks <br />8.15792e-4 months <br />, power was reduced to 96% of RTP for main turbine valve testing. Power was restored to 100% of I JP at 2255 hours0.0261 days <br />0.626 hours <br />0.00373 weeks <br />8.580275e-4 months <br />.

Unit 2 ended this month at 100% of RTP.

11.- Challenaes to Main Steam Safety Relief Valves There were no challenges to the Main Steam Safety Relief Valves during the month of August. There have been no challenges to the Main Steam Safety Relief Valves year-to-date.

OPERATING DATA REPORT DOCMET NO. ' 50-363 L DATE : SEPTNR 14,1998

~

COMPLETED BY PECO ENERGY COMPANY .

P. A.HINCHEY REPORTS ENGINEER S(TE ENGINEERING

. UMERICK GENERATING STATION TELEPHONE (610)718 3797.

OPERATING STATUS

1. UNIT NAME.

LIMERICK UNIT 2

2. REPORTINC MRIOO*-

AUGUSTdS98,

3. DESIGN ELECTRICA4. RATING (NET MWE): 1115

4. MAXIMUM DEPENDABLE CAPACITY (GROSS MWE): 1156-

5. MAXIMUM DEPENDABLE CAPACITY (NET MWE): 1115 THIS MONTH YR-TO-DATE CUMULATNE

6. NUMBER OF HOURS REACTOR WAS CRITICAL 744.0 5,473.3 - 69.6203

7. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 0.0

8. HOURS GENERATOR ON-UNE 744.0 5.418.4 68.214.1

9. UNIT RESERVE SHUTDOWN HOURS . 0.0 0.0 0.0

10. NET ELECTRICAL ENERGY GENERATED (MWH) 829,503 5,979,947 70fA1748

~ DOCKETNO. 50-3S3 ~.

UNITNAME UMERICKUNIT2 .

DATE SEPTEMBER 14,1998 COMPLETED BY PECO ENERGY CORF.UfY '

F. A. HINCHEnf

, REPORTS EP:GNEER SITE ENGINEERING LNERICK GENERATING STATION -

REPORT MONTH AUGUST,19C TELEPHONE (610)718-3797

~

METHOD OF CAUSE AND CORRECTNE '

TYPE DURATION REASON SHUTTING DOWN ACTION TO NO. DATE- (1) (HOURS) (2) REACTOR (3) PREVENT RECURRENCE 318 cannni S B 4 REACTOR POWER WAS REDUCED TO 911% DUE TO MAIN .

TURBINE VALVE TESTING.

319 annann S B 4 REACTOR POWER WAS REDUCED TO 911% DUE TO MAIN TURBINE VALVE TESTING AND FURTHER TO 85% TO SCRAM TIME TEST & RESTORE CONTROL ROO 06-31.

320 91pl810 F H 4 REACTOR POWER WAS REDUCED TO 90% DUE TO LOSS OF 4 COOUNG TOWER MAKE-UP.

321 900815 S B 4 REACTOR POWER WAS REDUCED TO 98% DUE TO MAIN TURBINE VALVE TESTING.

322 N S B- 4- REACTOR POWER WAS REDUCED TO 98% DUE TO MAIN TURBINE VALVE TESTING AND FURTHER TO 89% FOR ROD PAT ADJ.

f 323 980829 S B 4 REACTOR POWER WAS REDUCED TO 93% DUE TO MAIN TURE4.NE VALVE TESTING.

- TOTALHOURS (1) (2) (3)

F-FORCED REASON METHOD S-SCHEDULED A- EQUIPMENT FAILURE (EXPUUN) 1 - MANUAL B - MAINTENANCE OR TEST 2-MANUAL SCRAM C-REFUEUNG 3- AUTOMATIC SCRAM D- REGUt.ATORY RESTRICTION .

4 -OTHER(EXPLAIN)

E - OPERATOR TRAthlNG + LICENSE EXAMINATION F- ADMINISTRATNE G-OPERATIONAL ERROR (EXPLAIN)

H -OTHER (EXPLAIN)

_ _ _ _ _ _ .