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Monthly Operating Repts for Mar 1997 for Limerick Generating Station,Units 1 & 2
	ML20137T476
Person / Time
Site:	Limerick
Issue date:	03/31/1997
From:	Canfield B, Sproat E; PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	; NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
	NUDOCS 9704160102
	Download: ML20137T476 (11)
	v • d • e

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l Limstick GanIrating Station

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_y PECO NUCLEAR eeco ree,2vcomneev Po Box 2300 A UNIT Or PECO ENtucy Sanatoga. PA 19464-o020 l

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T.S.6.9.1.6 j 1

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April 9,1997 l

Docket Nos. 50-352 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 0

Enclosed are the monthly operating reports for Limerick Units 1 and 2 for the month of March 1997 forwarded pursuant to Technical Specification 6.9.1.6.

s l Very truly yours, j 4

h[ ;

. Edward F. Sproat, III !

Director - Site Engineering bec I Enclosures I H. J. Miller, Administrator, Region I, USNRC I cc: 'g N. S. Perry, USNRC Senior Resident Inspector LGS W. G MacFarland, Vice President, LGS h +

9704160102 970331 .g PDR ADOCK 05000352 -

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Dock 1t No. 50-352 1 Attichmant to Monthly l

. Operating Report for

! . . March 1997 Limerick Generating Station

. Unit 1 I

March 1 through March 31,1997 4 ' l. Narrative Summary of Operatina Experiences Unit i began the month of March 1997 at a nominal 100% of rated thermal power (RTP).

i On March 1,1997 at 0303 hours0.00351 days 0.0842 hours 5.009921e-4 weeks 1.152915e-4 months , power was reduced to 98% of RTP for main turbine ;

valve testing. Power was restored to 100% RTP at 0351 hours0.00406 days 0.0975 hours 5.803571e-4 weeks 1.335555e-4 months .

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On March 7,1997 at 2210 hours0.0256 days 0.614 hours 0.00365 weeks 8.40905e-4 months , power was reduced to 98% of RTP for main turbine l valve testing. Power was restored to 100% RTP at 2318 hours0.0268 days 0.644 hours 0.00383 weeks 8.81999e-4 months .

t On March 14,1997 at 2300 hours0.0266 days 0.639 hours 0.0038 weeks 8.7515e-4 months , power was reduced to 98% of RTP for main turbine j - valve testing. Powerwas restored to 100% RTP at 2318 hours0.0268 days 0.644 hours 0.00383 weeks 8.81999e-4 months .

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. On March 21,1997 at 2300 hours0.0266 days 0.639 hours 0.0038 weeks 8.7515e-4 months , power was reduced to 92% of RTP for main turbine valta testing. Power was restored to 100% RTP on March 22,1997 at 0110 hours0.00127 days 0.0306 hours 1.818783e-4 weeks 4.1855e-5 months .

t !

On March 28,1997 at 2200 hours0.0255 days 0.611 hours 0.00364 weeks 8.371e-4 months , power was reduced to 98% of RTP for main turbine )

valve testing. Power was restored to 100% RTP on March 28 at 2300 hours0.0266 days 0.639 hours 0.0038 weeks 8.7515e-4 months .

Unit 1 ended this month operating at 100% RTP.

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t l li. Challenoes to Main Steam Safety Relief Valves I

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

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AVERAGE DAILY POWER LEVEL - ,

DOCKET NO. 50-352 ,

UNIT LIMERICKUNIT1 DATE APRIL 9,1997 -

3 COMPANY PECO ENERGY COMPANY BRUCE E. CANFIELD f REPORTS Ei4GINEER -

SITE ENGINEERING LIMERICK GENERATING STATION TELEPHONE (610)718-3794 L10 NTH MARCH,1997 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWE-NET) (MWE-NET) 1 1115 17 1119 2 1110 18 1115 3 1119 19 1115 4 1119 20 1115 5 1119 21 1107 r 6 1115 22 1103 7 1123 23 1116 8 1115 24 1120 9 1119 25 1112 10 1119 26 1103 i l

11 1119 27 1102 ;

12 1123 28 1090 y 13 1119 29 1095 5

14 1119 30 1096 6

15 1118 31 1101 16 1123 s

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OPERATING DATA REPORT DOCKET NO. 50- 352 DATE APRIL 9,1997 -

COMPLETED BY PECO ENERGY COMPANY BRUCE E. CANFIELD REPORTS ENGINEER

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SITE ENGINEERING LIMERICK GENERATING STATION i TELEPHONE (610)718 3794 OPERATING STATUS

1. UNIT NAME: L. I.M. .ER.I.C..K UN.._IT 1..

2. REPORTING PER!OD: MA,R_CH,1997_,

GREATER THAN 20% THIS MONTH.

3. LICENSED THERMAL POWER (MWT):- 3456

4. NAMEPLATE RATING (GROSS MWE): 1100

5. DESIGN ELECTRICAL RATING (NET MWE): 1105

6. MAXIMUM DEPENDABLE CAPACITY (GROSS MWE): 1145

7. MAXIMUM DEPENDABLE CAPACITY (NET MWE): 1105

8. IF CHANGES OCCUR IN CAPAChY RATINGS (ITEMS 3 THROUGH 7 ) SINCE LAST REPORT, GIVE REASONS:

9. POWER LEVEL TO WHICH RESTRICTED,:F ANY(NET MWE):

10. REASONS FOR RESTRICTIONS,IF ANY:

THIS MONTH YR-TO-DATE CUMULATIVE

11. HOURS IN REPORTING PERIOD 744 2.160 97,848

12. NUMBER OF HOURS REACTOR WAS CRillCAL 744.0 2,160.0 82,287.4

13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 0.0 ,

14. HOURS GENERATOR ON-LINE 744.0 2,160.0 80,920.0

15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0

16. GROSS THERMAL ENERGY GENERATED (MWH) 2,570,899 7,462,708 253,216,871 ,

17. GROSS ELECTRICAL ENERGY GENERATED (MWH) 854,300 2,488,800 82,560,380

18. NET ELECTRICAL ENERGY GENERATED (MWH) 828,168 2,409.513 79,342,610 PAGE 10F 2

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OPERATING DATA REPORT (CONTINUED)

DOCKET NO. 50 -352 .

.DATE. APRIL 9,1997 THIS MONTH YR-TO-DATE CUMULATIVE

19. UNIT SERVICE FACTOR 100.0 % 100.0 % 82,7 %

20. UNIT AVAILABILITY FACTOR ' 100.0 % 100.0 % 82.7 %

21. UNIT CAPACITY FACTOR (USING MDC NET) 100.7 % 101.0 % 76.4 %

22. UNIT CAPACITY FACTOR (USING DER NET) 100.7 % 101.0 % 76.4 %

23. UNIT FORCED OUTAGE RATE - .0% .0 % 4.1 %

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

PLANNED MAINT OUTAGE,4/11/97, SCHEDULED 2 DAY DURATION

25. IF SHUTDOWN AT THE END OF REPORT PERIOD, ESTIMATED DATE OF STARTUP:

26. UNITS IN TEST STATUS (PRIOR TO COMMERCIAL OPERATIONS): FORECAST ACHIEVED INITIAL CRITICALITY 12/19/84 12/22/84 INITIAL ELECTRICITY mfd APRIL 85 04/13/85 COMMERCIAL OPERATION 1ST QTR 86 0201/86 i

t PAGE 2 OF 2

UNIT SHUTDOWNS AND POWER REDUCTIONS .. ,

i DOCKET NO. 50-352 ., l UNITNAME UMERICKUNIT1 '

r DATE APRIL 9.1997 -

COMPLETED BY PECO ENERGY COMPANY BRUCE E. CANFIELD REPORTS ENGINEER .

SITE ENGINEERING ;

UMERICK GENERATING STATION [

REPORT MONTH MARCH,1997 TELEPHONE (610)718-3794 ;

i METHOD OF UCENSEE SYSTEM COMPONENT CAUSE AND CORRECTIVE TYPE DURATION REASON SHUTTING DOWN EVENT CODE CODE ACTION TO NO. DATE (1) (HOURS) (2) REACTOR (3) REPORT # (4) (5) PREVENT RECURRENCE 181 970301 S 1.0 8 4 N/A HA VALVEX REACTOR POWER WAS REDUCED TO 98% DUE TO ;

MAIN TURBINE VALVE TESTING. .;

182- 970307 S 1.0 B 4 N/A HA VALVEX REACTOR POWER WAS REDUCED TO 90% DUE TO MAIN TURBINE VALVE TESTING. j 183 970314 S 1.0 B 4 N/A HA VALVEX . REACTOR POWER WAS REDUCED TO 98% DUE TO MAIN TURBINE VALVE TESTING.

184 970321 S 2.0 B 4 N/A HA VALVEX REACTOR POWER WAS REDUCED TO 92% DUE TO MAIN TURBlNE VALVE TESTING 185 970329 S 1.0 B 4 N/A HA VALVEX REACTOR POWER WAS REDUCED TO 98% DUE TO !

MAIN TURBINE VALVE TESTING 6.0 TOTAL HOURS

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(1) (2) (3) (4) f F-FORCED REASON METHOD EXHIBIT G-INSTRUCTIONS S- SCHEDULED A - EQUIPMENT FAILURE (EXPLAIN) 1 - MANUAL FOR PREPARATION OF DATA B - MAINTENANCE OR TEST 2.MANUALSCRAM ENTRY SHEETS FOR LICENSEE C- REFUELING 3- AUTOMATIC SCRAM EVENT REPORT (LER) l D- REGULATORY RESTRICTION 4-OTHER (EXPLAIN) FILE (NUREG-0161) ,

E - OPERATOR TRAINING + LICENSE EXAMINATION 1 F- ADMINISTRATIVE (5)

G- OPERATIONAL ERROR (EXPLAIN) EXHIBIT 1- SAME SOURCE H - OTHER (EXPLAIN)

'l Dock:t No. 50-353 Attichmint to Monthly Operating Report for j , ,

March 1997 l I

4 l

j Limerick Generating Station L Unit 2

March 1 through March 28,1997 i - 1. Narrative Summary of Operatina Experiences i

1 i Unit 2 began the month of March 1997 at 25% rated thermal power (RTP) in power ascension

from a refueling outage. l

! On March 3,1997 Power was restored to 100% RTP at 1509 hours0.0175 days 0.419 hours 0.0025 weeks 5.741745e-4 months .

On March 4,1997 at 2025 hours0.0234 days 0.563 hours 0.00335 weeks 7.705125e-4 months , power was reduced to 65% of RTP due to a feedwater heat

' exchangerleak. Powerwas restored to 100% RTP on March 7,1997 at 0044 hours5.092593e-4 days 0.0122 hours 7.275132e-5 weeks 1.6742e-5 months .

On March 8,1997 at 2214 hours0.0256 days 0.615 hours 0.00366 weeks 8.42427e-4 months , power was reduced to 88% of RTP for main turbine valve

. testing. Power was restored to 100% RTP on March 9, at 0059 hours6.828704e-4 days 0.0164 hours 9.755291e-5 weeks 2.24495e-5 months .

t i On March 15,1997 at 1345 hours0.0156 days 0.374 hours 0.00222 weeks 5.117725e-4 months , power was reduced to 98% of RTP for main turbine valve j testing. Power was restored to 100% RTP at 1428 hours0.0165 days 0.397 hours 0.00236 weeks 5.43354e-4 months .

3 On March 23,1997 at 0740 hours0.00856 days 0.206 hours 0.00122 weeks 2.8157e-4 months , power was reduced to 85% of RTP due to a main transformer high combustible gas reading. Powerwas restored to 100% RTP on March 24, at 0120 hours0.00139 days 0.0333 hours 1.984127e-4 weeks 4.566e-5 months .

l On March 27,1997 at 1436 hours0.0166 days 0.399 hours 0.00237 weeks 5.46398e-4 months , power was reduced to 86% of RTP due to tuibine generator i excitor alterex in contact with its bearing.

3 Unit 2 ended this operating penod at 22% of RTP. l II. Challenaes to Main Steam Safety Relief Valves There were no challenges to the Main Steam Safety Relief Valves during the month of March. ;

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AVERAGE DAILY POWER LEVEL. ..

DOCKET NO, 50-353 ' ,

UNIT LIMERICK UNIT 2 -

DATE APRIL 9,1997 ~

COMPANY PECO ENERGYCOMPANY BRUCE E. CANFIELD

- REPORTS ENGINEER '

SITE ENGINEERING LIMERICK GENERATING STATION TELEPHONE (610)718-3794

-(

MONTH MARCH,1997 -

t DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWE-NET) (MWE-NET) 1 309 17 1130 2 686 18 1'30 ;

3 1075 19 1134 4 1044 20 1125 5 901 21 1120

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6 961 22 935 7 1140 23 1021 :

8 1123 24 1131 9 1135 25 1131 i

10 1135 26 1110 11 1130 27 1004 L

12 1138 28 775 .i

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13 1138 29 792 i

14 1129 30 771 ,

t 15 1132 31 0 ;

i 16 1138 l

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OPERATING DATA REPORT DOCKET NO. 50 -3S3 DATE APR!L 9,1997 -

COMPLETED BY PEC 3 ENERGY CCMPANY i"!UCE E. CANFIELD REPORTS ENGINEER '

SITE ENGINEERING LIMERICK GENERATING STATION TELEPHONE (610)718-3794 OPERATING STATUS

1. UNIT NAME- __

LIMERICK UNIT 2 NOTES: THERE WERE 2 LOAD DROPS

2. REPORTING PERIOD: MA.RCH,1997 GREATER THAN 20% THIS MONTH

3. LICENSED THERMAL POWER (MWT): _ _ _3458 DUE TO RECIRC PUMP 4 NAMEPLATE RATING (GROSS MWE): ..._ .1163 VIBRATIONSB FEEDWATER HTR

5. DESIGN ELECTRICAL RATING (NET MWE): _.

1115 LEAK AND TURB GEN ALTEREX

6. MAXIMUM DEPENDABLE CAPACITY (GROSS MWE): __ 11_55 BEARING

7. MAXIMUM DEPENDABLE CAPACITY (NET MWE): 1115

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

IN CONTACT WITH ITS

9. POWER LEVEL TO WHICH RESTRICTED, IF ANY (NET MWE):

'c. REASON 5 FOR RESTRICTIONS,IF ANY:

i THIS MONTH YR-TO-DATE CUMULATIVE

91. HOURS IN REPORTING PERIOD 744 2,160 63,360

12. NUMBER OF HOURS REACTOR WAS CRITICAL 744.0 1,519.8 57,547.0

13. REACTOR RESER'E SHUTDOWN HOURS OO O.0 0.0

14. HOURS GENERATOR ON-LINE 720.0 1,447.6 56,386.7

15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0

16. GROSS THERMAL ENERGY GENERATED (MWH) 2.256,453 4,240,593 180,665,337

17. GROSS SLECTRICAL ENERGY GENERATED (HWH) 759,700 1,400,500 59,790,780

18. NET ELECTRICAL ENERGY GENERATED (MWH) 734,774 1,347,220 57,651,951 PAGE 1 OF 2

OPERATING DA FA REPORT (CONTINUED)

DOCKET NO. 50-353 -

DATE APRIL 9.1997 THIS MONTH YR-TO-DATE CUMULATIVE

19. UNIT SERVICE FACTOR 96.8 % 67.0 % 89.0 %

20. UNIT AVAILABILITY FACTOR 96.8 % 67.0 % 89.0 %

21. UNIT CAPACITY FACTOR (USING MDC NET) 88.6 % 55.9 % 84.8 %

22. UNIT CAPACITY FACTOR (USING DER NET) 88.6 % 55.9 % 84.8 %

23. UNIT FORCED OUTAGE RATE .0 % .0 % 3.5 %

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

PLANNED MAINT OUTAGE. 3/31/97 SCHEDULED 4 DAY DURATION

25. IF SHUTDOWN AT THE END OF REPORT PERIOD, ESTIMATED DATE OF STARTUP: 403/97

26. UNITS IN TEST STATUS (PRIOR TO COMMERCIAL OPERATIONS): FORECAST ACHIEVED INITIAL CRITICALITY 08/12/89 08/12/89 INITIAL ELECTRICITY 09/01/89 09/01/89 COMMERCIAL OPERATION 02/01/90 01 M 90 PAGE 2 OF 2

UNIT SHUTDOWNS AND POWER REDUCTIONS

{

DOCKET NO. 50-353 UNIT NAME LIMERICK UNIT 2 -

DATE APRIL 9,1997 i COMPLETED BY PECO ENERGY COMPANY I BRUCE E. CANFIELD REPORTS ENGINEER -

SITE ENGINEERING [

LIMERICK GENERATING STATION t REPORT MONTH MARCH,1997 TELEPHONE (610)718-3794 METHOD OF LICENSEE SYSTEM COMPONENT CAUSE AND CORRECTIVE TYPE DURATION REASON SHUTTING DOWN EVENT CODE CODE ACTION TO i NO DATE (1) (HOURS) (2) REACTOR (3) REPORT # (4) (5) PREVENT RECURRENCE 167 970304 F 28.0 A 4 N/A CH HTEXCH REACTOR POWER WAS REDUCED TO 65% DUE TO FEEDWATER HEAT EXCHANGER LEAK.

168 970308 S 2.0 B 4 N/A HA VALVEX REACTOR POWER WAS REDUCED TO 88% DUE TO MAIN TI)RBINE VALVE TESTING. L 189 970315 S 1.0 8 4 N/A HA VALVEX REACTOR POWER WAS REDUCED TO 98% DUE TO MAIN TURBINE VALVE TESTING.

i 170 970323 F 17.0 A 4 N/A EG TRANSF REACTOR POWER WAS REDUCED TO 85% DUE TO l MAIN TRANSFORMER HIGH COMBUSTIBLE GAS READING.

171 970327 F 105.0 A 4 N/A HA TURBiN REACTOR POWER WAS REDUCED TO 86% DUE TO TURBINE GENERATOR EXCITOR ALTEREX IN CONTACT WITH ITS BEARING. .

TOTAL HOURS 153 0 ,

i (1) (2) (3) (4)

F-FORCED REASON METHOD EXHIBIT C -INSTRUCTIONS S - SCHEDULED A - EQUIPMENT FAILURE (EXPLAIN) 1 - MANUAL FOR PREPARATION OF DATA B - MAINTENANCE OR TEST 2- MANUAL SCRAM ENTRY SHEETS FOR UCENSEE i C - REFUELING 3- AUTOMATIC SCRAM EVENT REPORT (LER)

D - REGULATORY RESTRICTION 4- OTHER (EXPLAIN) FILE (NUREG4161) ,

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

G - OPERATIONAL ERROR (EXPLAIN) EXHIBIT I- SAME SOURCE H - OTHER (EXPLAIN)

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ML20137T476

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