ML20076F369

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Monthly Operating Repts for Sept 1994 for Limerick Generating Station Units 1 & 2
ML20076F369
Person / Time
Site: Limerick  Constellation icon.png
Issue date: 09/30/1994
From: Kelley S, Muntz J
PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9410170123
Download: ML20076F369 (11)
v • d • e


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Sanatoga. PA 19464-0920 T.S.6.9.1.6 October 13, 1994 Docket Nos. 50-352 50-353 License Nos. NPF-39 NPF-85 1

U. S. Nuclear Regulatory Commission Attn:

Document Control Desk Washington, DC 20555

Subject:

Limerick Generatina 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 September 1994 forwarded pursuant to Technical Specification 6.9.1.6.

Very truly yours, h

f James A.

Muntz Director - Site Engineering sjk Enclosures cc:

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

N.

S. Perry, USNRC Senior Resident Inspector LGS (w/ enclosures)

D.

R. Helwig, Vice President, Limerick Generating Station 1iv t.

9410170123 940930

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Docket No. 50-352 Attachment to Monthly Operating Report for September 1994 Limerick Generating Station Unit 1 September 1 through September 30, 1994 I.

Narrative Summary of Operating Experiences Unit 1 began the month of September at a nominal 100% of rated thermal power (RTP).

On September 25, 1994, at 0825 hours0.00955 days <br />0.229 hours <br />0.00136 weeks <br />3.139125e-4 months <br />, power was reduced to 91% RTP for Main Turbine valve testing.

Power was restored to 100% RTP at 0925 hours0.0107 days <br />0.257 hours <br />0.00153 weeks <br />3.519625e-4 months <br />.

Unit 1 ended this operating period at 100% of RTP.

II.

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

CVERAGE DAILY UNIT POWER LEVEL DOCKET WO. 50 - 352 UNIT LIMERICK UNIT 1 DATE OCTOBER 13,1994 COMPANY PECO ENERGY COMPANY s

STEVEN J.

MELLEY REPORTS ENGINEER SITE ENGINEERING LIMERICK GENERATING STATION TELEPHONE (610) 327-1200 EXTENSION 3763 MONTH SEPTEMBER 1994 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MwE-NET)

(WWE-NET) 1 1045 17 1039 2

1053 18 1053 4 '

3 1053 19 1053 4

1054 20 1049 5

1057 21 1050 6

1052 22 1046 7

1051 23 1046 8

1037 24 1051 9

1037 25 1044 10 1047 26 1045 11

~1C56 27 1044 12 1055 28 1051 13 1046 29 1055 14 1039 30 1056 15 1047 16 1044

OPERATING DATA REPORT DOCKET NO. 50 - 352 DATE OCTOBER 13.1994 COMPLETED BY PECO ENERGY COMPANY STEVEN J.

KELLEY REPORTS ENGINEER SITE ENGINEERING LIMERICK GENERATING STATION TELEPHONE (610) 327-1200 EXTENSION 3763 OPERATING STATUS 1.

UNIT NAME: LIMERICK UNIT 1 NOTES: THERE WERE NO LOAD DROPS

2. REPORTING PERIOD: SEPTEMBER. 1994 GREATER THAN 20% THIS 3.

LICENSED THERMAL POWER (MWT):

3293 MONTH.

4. NAMEPLATE RATING (GROSS MwE):

1138

5. DESIGN ELECTRICAL RATING (NET MWE):

1055

6. MAXIMUM DEPENDABLE CAPACITY (GROSS MWE): 1092
7. MAXIMUM DEPENDABLE CAPACITY (NET MWE):

1055 8.

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

9. POWER LEVEL TO WHICH RESTRICTED. IF ANY (NET MWE):
10. REASONS FOR RESTRICTIONS. IF ANY:

THIS MONTH YR-TO-DATE CUMULATIVE

11. HOURS IN REPORTING PERIOD 720 6.551 75.935
12. NUMBER OF HOURS REACTOR WAS CRITICAL 720.0 5.700.2 61.899.3
13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 0.0
14. HOURS GENERATOR ON-LINE 720.0 5.643.7 60,828.5
15. UNIT RESERVE SHUTDOWN HOURS O.0 0.0 0.0
16. GROSS THERMAL ENERGV GENERATED (MWH) 2.369.686 17.793.826 187.244.585
17. GROSS ELECTRICAL ENERGY GENERATED (MWH) 781.050 5.804.550 60,846.590
18. NET ELECTRICAL ENERGY GENERATED (MWh) 754.880 5.600.027 58.386.017 j

PAGE 1 OF 2 l

I l

OPERATING DATA REPORT (CONTINUED)

DOCKET NO. 50 - 352 DATE OCTOBER 13.1994 THIS MONTH VR-TO-DATE CUMULATIVE

19. UNIT SERVICE FACTOR 100.0 86.2 80.1
20. UNIT AVAILABILITV FACTOR 100.0 86.2 80 1
21. UNIT CAPACITV FACTOR (USING MDC NET) 99.4 81.0 72.9
22. UNIT CAPACITY FACTOR (USING DER NET) 99.4 81.0 72.9
23. UNIT FORCED OUTAGE RATE O.0 1.0 4.4 24 SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS (TYPE. DATE. ANC DURATION OF EACH):
25. IF SHUTDOWN AT END OF REPORT PERIOD. ESTIMATED DATE OF STARTUP:
26. UNITS IN TEST STATUS (PRIOR TO COMMERCIAL OPERATION):

FORECAST ACHIEVED INITIAL CRITICALITV 12/19/84 12/22/84 INITIAL ELECTRICITY MID APRIL 85 4/13/85 COMMERCIAL OPERATION IST OTR 86 2/01/86 I

4

.I PAGE 2 OF 2

- =

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50 - 352 UNIT NAME <!MERICK UNIT 1 DATE OCTOBCR 13.1994 REPORT MONTH SEPTEMBER, 1994 COMPLETED BY PECO EHERGY COMPANY STEVEN J.

KELLEY REPORTS ENGINEER SITE ENGINEERING LIMERICK GENERATING STATION TELEPHONE (610) 327-1200 EXTENSION 3763

____.--_-________________________________________...________..___._________________.___-~~~_-__----.....____________________

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 i

32 940925 S

000.0 B

4 N/A HA INSTRU REACTOR POWER WAS REDUCED TO 91% FOR MAIN TURBINE VALVE TESTING.

1 -

(1)

(2)

(3)

(4)

F - FORCED REASON METHOD EXHIBIT G-INSTRUCTIONS S - 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 (S)

G - OPERATIONAL ERROR (EXPLAIN)

H-OTHER(EXPLAIN)

EXHIBIT I - SAME SOURCE l

l I

l I

Docket No. 50-353 Attachmont to Monthly Operating Report for September 1994 Limerick Generating Station Unit 2 September 1 through September 30, 1994 I.

Narrative Summary of Ocerating Experiences Limerick Unit 2 began the month of September at a nominal 100% of Rated Thermal Power (RTP).

On September 7, 1994, at 1645 hours0.019 days <br />0.457 hours <br />0.00272 weeks <br />6.259225e-4 months <br />, power was reduced due to lower than normal stator water cooling flow due to a clogged strainer.

At 2253 hours0.0261 days <br />0.626 hours <br />0.00373 weeks <br />8.572665e-4 months <br /> power was at 25% RTP.

The main turbine was removed from service in order to correct the low stator water cooling flow.

On Septen6er 8,

1994, reactor power was reduced to 6% due to an increase in unidentified drywell leakage.

It was later identified that a feedwater check valve bearing end cap was the source of the leak.

The stator water cooling strainer and feedwater check valve were fixed and power was increased at 1735 hours0.0201 days <br />0.482 hours <br />0.00287 weeks <br />6.601675e-4 months <br /> on September 9, 1994.

The main turbine was connected to the grid at 0323 hours0.00374 days <br />0.0897 hours <br />5.340608e-4 weeks <br />1.229015e-4 months <br /> on September 10th and power ascension continued. Power was restored to 100% RTP at 0911 hours0.0105 days <br />0.253 hours <br />0.00151 weeks <br />3.466355e-4 months <br /> on September 12, 1994.

On September 18, 1994, at 0935 hours0.0108 days <br />0.26 hours <br />0.00155 weeks <br />3.557675e-4 months <br />, power was reduced to 91% RTP for Main Turbine valve testing.

Power was restored to 99% RTP at 1115 hours0.0129 days <br />0.31 hours <br />0.00184 weeks <br />4.242575e-4 months <br />.

On September 21, 1994, at 1805 hours0.0209 days <br />0.501 hours <br />0.00298 weeks <br />6.868025e-4 months <br />, power was reduced to 95% RTP in order to remove the 5A, B, and C feedwater heaters from service.

Following the removal of the feedwater heaters from service, power was restored to 100%

RTP at 2015 hours0.0233 days <br />0.56 hours <br />0.00333 weeks <br />7.667075e-4 months <br />.

Unit 2 ended this operating period at 100% of RTP.

II.

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

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50 - 353 UNIT LIMERICK UNIT 2 DATE OCTOBER 12.1994 COMPANY PECO ENERGY COMPANY STEVEN J.

KELLEY REPORTS ENGINEER SITE ENGINEERING LIMERICK GENERATING STATION TELEPHONE (610) 327-1200 EXTENSION 3763 MONTH SEPTEMBER 1994 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILV POWER LEVEL (MwE-NET)

(MWE-NET) 1 1044 17 1039 i

2 1051 18 1043 3

1052 19 1039 4

1051 20 1040 5

1054 21 1027 6

1049 22 1033 7

903 23 1032 0

0 24 1033 9

11 25 1030 10 332 26 1028 11 891 27 1026 12 993 28 1033 13 1044 29 1037 14 1039 30 1035 15 1048 16 1044

OPERATING DATA REPORT DOCKET NO. 53 - 353 DATE OCTOBER 12.1994 COMPLETED BY PECO ENERGY COMPANY STEVEN J.

KELLEY REPORTS ENGINEER SITE ENGINEERING LIMERICK GENERATING STATION TELEPHONE (610) 327-1200 EXTENSION 3763 OPERATING STATUS 1.

UNIT NAME: LIMERICK UNIT 2 NOTES: THERE WERE ONE LOAD DROP 2.

REPORTING PERIOD: SEPTEMBER, 1994 GREATER THAN 20% THIS 3.

LICENSED THERMAL POWER (WWT):

3293 MONTH DUE TO STATOR 4 NAMEPLATE RATING (GROSS MWE):

1138 WATER COOLING.

5.

DESIGN ELECTRICAL RATING (NET MWE):

1055 6.

MAXIMUM DEPENDABLE CAPACITY (GROSS WWE): 1092 7.

MAXIMUM DEPENDABLE CAPACITY (NET MWE):

1055 8.

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

9.

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

10. REASONS FOR RESTRICTIONS. IF ANY:

THIS MONTH YR-TO-DATE CUMULATIVE

11. HOURS IN REPORTING PERIOD 720 6.551 41.447
12. NUMBER OF HOURS REACTOR WAS CRITICAL 720.0 6.551.0 37,193.6
13. REACTOR RESERVE SHUTDOWN HOURS O.0 0.0 0.0
14. HOURS GENERATOR ON-LINE 672.7 6.503.7 36.450.4
15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0
16. GROSS THERMAL ENERGY GENERATED (MWH) 2.144.755 21.251.612 116.556.693
17. GROSS ELECTRICAL ENERGY GENERATED (MWH) 699.100 7.082.560 38.575.086
18. NET ELECTRICAL ENERGY GENERATED (MWM) 673.668 6.838.459 37.169.151 PAGE 1 OF 2

OPERATING DATA REPORT (CONTINUED)

DOCKET NO. 50 - 353 DATE OCTOBER 12.1994 THIS MONTH VR-TO-DATE CUMULATIVE

19. UNIT SERVICE FACTOR 93.4 99.3 87.9
20. UNIT AVAILABILITY FACTOR 93.4 99.3 87.9
21. UNIT CAPACITV FACTOR (USING MDC NET) 88.7 98.9 85.0
22. UNIT CAPACITY FACTOR (USING DER NET) 88.7 98.9 85.0
23. UNIT FORCED OUTAGE RATE 6.0 0.7 3.5 24 SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS (TYPE. DATE. AND DURATION OF EACH):
25. IF SHUTDOWN 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 I

PAGE 2 OF 2

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

. UNIT 2 OATE OCTOBER 12,1994 REPORT MONTH SEPTEMSER. 1994 COMPLETED BY PECO ENERGY COMPANY STEVEN J.

KELLEY REPORTS ENGINEER SITE ENGINEERING LIMERICK GENERATING STATION TELEPHONE (610) 327-1200 EXTENSION 3763 METHOD OF LICENSEE ISYSTEM COMPONENT! CAUSE AND CORRECTIVE TYPE DURATION REASON SHUTTING DOWN EVENT l CODE CODE l ACTION TO NO.

DATE (1)

(HOURS)

(2)

REACTOR (3) l REPORT s ]

(4)

(5) l PREVENT RECURRENCE 20 940907 F

043.2 H

1 N/A WA HTEXCH REACTOR POWER WAS REDUCED TO 6% DUE TO THE STATOR WATER COOLING SYSTEM.

21 940918 5

000.0 B

4 N/A HA INSTRU REACTOR DOWER WAS REDUCED TO 91% FOR MAIN TURBINE VALVE TESTING.

22 940921 S

000.0 C

4 N/A CH HTEXCH REACTOR POWER WAS REDUCED TO 95% DUE TO THE REMOVAL OF A FEEDWATER HEATER.

l l

43.2 l

(1)

(2)

(3)

(4)

F - FORCED REASON METHOD EXHIBIT G-INSTRUCTIONS S - 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)

G - OPERATIONAL ERROR (EXPLAIN)

H - OTHER(EXPLAIN)

EXHIBIT I - SAME SOURCE

.

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