ML20081B278

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Monthly Operating Repts for Feb 1995 for Limerick Generating Station
ML20081B278
Person / Time
Site: Limerick  Constellation icon.png
Issue date: 02/28/1995
From: Henricks D, Muntz J
PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
T.S.6.9.1.6, NUDOCS 9503160116
Download: ML20081B278 (11)
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Text

l Limerick Generating Station' 3

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. 'Egpr l PECO ENERGY ;5 J ;; ; * *"" i Sanatoga. PA 19464 4920 T.S.6.9.1.6 March.14, 1995 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 ,

Enclosed are the monthly operating reports for Limerick Units 1 and 2 for the month of February 1995 forwarded pursuant to Technical Specification 6.9.1.6.

Very truly yours, 9

b

    1. b(/

Uames A. Muntz Di' rector - Site Engineering I

drh Enclosures  ;

cc: T. T. Martin, Administrator, Region I, USNRC N. S. Perry, USNRC Senior Resident Inspector LGS W. G. MacFarland, Vice President, LGS I

l 160006 9503160116 950228 PDR ADOCK 05000352 R I PDR

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.4 Docket No. 50-352 r Attachment to Monthly l Operating Report for i February 1995 1 I

1 Limerick Generating Station Unit 1 February 1 through February 28,1995 - j

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1. Narrative Summary d Operating Exoerlences .}

l Unit 1 began the month of February at a nominal 100% of rated thermal power (RTP). :l l

On February 3,1995, at 0005 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br />, power was reduced to 95% RTP for a control rod pattom- i adjustment. Power was restored to 100% at 0325 hours0.00376 days <br />0.0903 hours <br />5.373677e-4 weeks <br />1.236625e-4 months <br />. L!

I On February 12,1995, at 1120 hours0.013 days <br />0.311 hours <br />0.00185 weeks <br />4.2616e-4 months <br />, power was reduced to 92% RTP for main turbine valve testing. Power was restored to 100% RTP at 1300 hours0.015 days <br />0.361 hours <br />0.00215 weeks <br />4.9465e-4 months <br />  ;

On February 21,1995, at 0308 hours0.00356 days <br />0.0856 hours <br />5.092593e-4 weeks <br />1.17194e-4 months <br />, whle capacitor replacement was ongoing at Whitpain Substation, a lightning arrestor exploded causing an electrical transient in the offsite power grid.

This disturbance caused a generator lockout and main turbine trip resulting in a reactor scram.

No complications resulted and no safety relief valves ilfted or emergency core cooling systems actuated. Reactor pressure and level were stabNized within five minutes.

i On February 21,1995, at 2046 hours0.0237 days <br />0.568 hours <br />0.00338 weeks <br />7.78503e-4 months <br /> the mode switch was placed in Startup and control rod ~

withdrawal commenced at 2123 hours0.0246 days <br />0.59 hours <br />0.00351 weeks <br />8.078015e-4 months <br />. The reactor achieved criticality on February 22,1995, at 0333 hours0.00385 days <br />0.0925 hours <br />5.505952e-4 weeks <br />1.267065e-4 months <br />. The mode switch was placeo !n Run at 1348 hours0.0156 days <br />0.374 hours <br />0.00223 weeks <br />5.12914e-4 months <br /> and the generator was synchronized to the grid at 1658 hours0.0192 days <br />0.461 hours <br />0.00274 weeks <br />6.30869e-4 months <br /> The Unit was restored to 100% RTP on February 24, 1995, at 2108 hours0.0244 days <br />0.586 hours <br />0.00349 weeks <br />8.02094e-4 months <br />.

On February 25,1995, at 1700 hours0.0197 days <br />0.472 hours <br />0.00281 weeks <br />6.4685e-4 months <br />, power was reduced to 88% RTP for a control rod pattom adjustment.' Power was restored to 100% RTP at 1900 hours0.022 days <br />0.528 hours <br />0.00314 weeks <br />7.2295e-4 months <br />.

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

I II. Challenges to Main Steam Pafety Relief Valves  ;

]

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

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AVERAGE DAILY UNIT POWER LEVEL DOCMET NO. 50 - 352 UNIT LIMERICK UNIT 1 DATE MARCH 13 1995 COMPANY PECO ENERGV COMPANY DAVID R. HENRICKS REPORTS ENGINEER SITE ENGINEERING LIMERICK GENERATING STATION TELEPHONE (610) 718-3772 MONTH FEBRUARY 1995 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWE-NET) (MWE-NET) 1 1062 17 1062 2 1062 18 1057 3 1063 19 1067 4 1063 20 1057 5 1067 21 131 6 1062 22 30 7 1067 23 585 8 1066 24 934 9 1063 25 1060 10 1068 26 1066 11 1063 27 1070 12 1059 28 1065 13 1067 14 1066 15 1058 16 1063

, . - - . _ - . .. . . , . _ - - - - ~ . . - . - . . , . . .- - -- . . - .

OPERATING DATA REPORT DOCKET NO. 50 - 352 DATE MARCH 13 1995 COMPLETED BY PECO ENERGY COMPANY DAVID R. HENRICKS REPORTS ENGINEER SITE ENGINEERING LIMERICK GENERATING STATION TELEPHONE (610) 718-3772 OPERATING STATUS 1 UNIT NAME: LIMERICM UNIT 1 NOTES: THERE WAS 1 LOAD DROP

2. REPORTING PERIOD: FEBRUARY. 1995 GREATER THAN 20% THIS MONTH.
3. LICENSED THERMAL POWER (MWT): 3293 DUE TO A REACTOR SCRAM.

4 NAMEPLATE RATING (GROSS MWE): 1138

5. OESIGN ELECTRICAL RATING (NET MwE)e 1055
6. MAXIMUM DEPENDABLE CAPACITY (GROSS MwE): 1092
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 ANY (NET MwE):
10. REASONS FOR RESTRICTIONS. IF ANY THIS MONTH YR-TO-DATE CUMULATIVE 11 HOURS IN REPORTING PERIOD 672 1.416 79.560
12. NUMBER OF HOURS REACTOR WAS CRITICI 652.5 1.396.5 65.504.8
13. REACTOR RESERVE SHUTDOWN HOURS b$b O.b b$b 14 HOURS GENERATOR ON-LINE 634.2 1.378.2 64.403.7
15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0
16. GROSS THERMAL ENERGY GENERATED (MwH) 2.154.240 4.507.512 198.824.050
17. GROSS ELECTRICAL ENERGY GENERATED (MwH) 676.900 1.462.100 64.646.380
18. NET ELECTRICAL ENERGY GENERATED (MWM) 652.842 1.411.976 62.055.982 PAGE 1 OF 2

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OPERATING DATA REPORT (CONTINUED) DOCKET NO. 50 - 352

_ _ _ _ . _ - - - . _ _ - - - - - - - - - - =_- .

DATE MARCH 13. 1995

'THIS MONTH YR-TO-DATE CUMULATIVE *

19. UNIT SERVICE FACTOR 94.4 97.3 80.9
20. UNIT AVAILABILITY FACTOR 94.4 97.3 80.9
21. UNIT CAPACITV FACTOR (USING MDC NET) 92.1 94.5 73.9
22. UNIT CAPACITY FACTOR (USING DER NET) 92.1 94.5 T3.9
23. UNIT FORCED OUTAGE RATE 5.6 2.7 4.2 24 SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS (TYPE. DATE. AND DURATION OF EACH):
25. IF SHUTDOWN AT END OF REPORT PERIOD, ESTIMATED DATE OP STARTUP:
26. UNITS IN TEST STATUS (PRIOR TO COMMERCIAL OPERATION): FORECAST ACHIEVED INITIAL CRITICALITY 12/19/84 12/22/84 INITIAL ELECTRICITV MID APRIL 85 4/13/85 COMMERCIAL OPERATION IST QTR 86 2/01/86 PAGE 2 OF 2

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9 UNIT SHUTDOWNS QND POWEQ REDUCTIONS DOCCET NO. 50 - 353

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UNIT NAME LIMERICK UNIT 1 DATE MARCH 13. 1995 .

= _ - - - - - = - _ _ - _ - _ . . _ . . _ _ . .

REPORT MONTH FEBRUARY. 1995 COMPLETED BY PECO ENERGY COMPANY DAVID R. HENRICKS

  • REPORTS ENGINEER SITE ENGINEERING LIMERICK GENERATING STATION TELEPHOdE (610) 718-3772

......._...__...._......__........_...._...._.............._.._..._..___..._..... ......._.-_. ...___............-- _ - - _ = .

METHOD OF LICENSEE SYSTEM COMPONENT CAUSE AND CORRECTIVE TVPE DURATION REASON SHUTTING DOWN EVENT CODE CODE ACTION TO NO. DATE (1) (HOURS) (2) REACTOR (3) REPORT a (4) (5) PREVENT RECURRENCE 50 950203 S 000.0 B 4 N/A RB CONROD REACTOR POWER WAS REDUCED TO 95% DUE TO A CONTROL ROD PATTERN ADJUSTMENT.

31 950212 S 000.0 B 4 N/A HA VALVEX REACTOR POWER WAS REDUCED TO 92% FOR MAIN TURBINE VALVE TESTING.

4 32 950221 F 037.8 H 3 N/A RB CONROD REACTOR SCRAM DUE TO ELECTRICAL DISTURBANCE At WHITPAIN SUBSTATION.

53 950225 S 000.0 9 4 N/A RB CONROD REACTOR POWER WAS REDUCED TO 86% DUE TO A CONTROL ROD PATTERN ADJUSTMENT.

37.8 (1) (2) (3) (4)

F - FORCED REASON METHOD EXHIBIT G - INSTRUCTIONS S- SCHEDULED A - EOUIPMEN' 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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Docket No. 50453 -

Attachment to Monthly Operating Report for.  ;

February 1995

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u Limerick Generating Station i Unit 2 -

February 1 through February 28,1995

l. Narrative Summarv of Operatina Experiences a Unit 2 began the month of February with refueling operations in progress.

On February 17,1995, at 0357 hours0.00413 days <br />0.0992 hours <br />5.902778e-4 weeks <br />1.358385e-4 months <br />, the mode switch was placed in Startup and control rod ' )

withdrawal commenced at 0420 hours0.00486 days <br />0.117 hours <br />6.944444e-4 weeks <br />1.5981e-4 months <br />.' The reactor achieved criticality at 0635 hours0.00735 days <br />0.176 hours <br />0.00105 weeks <br />2.416175e-4 months <br />. On ' I February 18,1995, at 0011 houm, the mode switch was placed in Run. On February 19,1995, .I at 0337 hours0.0039 days <br />0.0936 hours <br />5.57209e-4 weeks <br />1.282285e-4 months <br /> the main turbine was synchronized to the grid. Main turbine overspeed trip , i testing was then performed and the main turbine was again synchronized to the grid at 0616 )

hours, ending the third refueling outage On February 21,1995, at 0306 hours0.00354 days <br />0.085 hours <br />5.059524e-4 weeks <br />1.16433e-4 months <br />, while capacitor replacement was ongoing at Whitpain Substation, a lightning arrestor exploded causing an electrical transient in the offsite power grid.

This disturbance caused a generator lockout and main turbine trip resulting in a reactor scram.

No complications resulted and no safety relief valves lifted or emergency core cooling systems actuated. Reactor pressure and level were stabilized within five minutes.

On February 21,1996, at 1250 hours0.0145 days <br />0.347 hours <br />0.00207 weeks <br />4.75625e-4 months <br /> the mode switch was placed in Startup and control rod withdrawal commenced at 1354 hours0.0157 days <br />0.376 hours <br />0.00224 weeks <br />5.15197e-4 months <br />. The reactor achieved criticality at 2218 hours0.0257 days <br />0.616 hours <br />0.00367 weeks <br />8.43949e-4 months <br />. The mode switch was placed in Run 'on February 24,1995, at 0826 hours0.00956 days <br />0.229 hours <br />0.00137 weeks <br />3.14293e-4 months <br /> and the main generator was synchronized to ti,s grid at 1000 hours0.0116 days <br />0.278 hours <br />0.00165 weeks <br />3.805e-4 months <br />. The Unit was restored to 100% rated thermal power (RTP) on February 25,1996, at 0712 hours0.00824 days <br />0.198 hours <br />0.00118 weeks <br />2.70916e-4 months <br /> On February 25,1995, at 2018 hours0.0234 days <br />0.561 hours <br />0.00334 weeks <br />7.67849e-4 months <br />, power was reduced to 96% RTP for a control rod pattom adjustment. Power was restored to 100% shortly thereafter.

On February 26,1996, at 0049 hours5.671296e-4 days <br />0.0136 hours <br />8.101852e-5 weeks <br />1.86445e-5 months <br />, power was reduced to 95% RTP for a control rod pattom adjustment. Power was restored to 100% RTP at 0322 hours0.00373 days <br />0.0894 hours <br />5.324074e-4 weeks <br />1.22521e-4 months <br /> On February 26,1996, at 1001 hours0.0116 days <br />0.278 hours <br />0.00166 weeks <br />3.808805e-4 months <br />, power was reduced to 57% RTP for a control rod pattom adjustment. Power was restored to 100% RTP at 2137 hours0.0247 days <br />0.594 hours <br />0.00353 weeks <br />8.131285e-4 months <br />. l Unit 2 ended this operating period at 100% of RTP.

'l Challenoes to Main Steam Safety Relief Valves j

I There were no challenges to the Main Steam Safety Relief Valves during the month of February. q i

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DVEROGE DOILY UNIT POWER LEVEL

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DOCMET NO. 50 - 353 UNIT LIMERICK UNIT 2 DATE MARCH 13. 1995

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CCMPANY PECO ENERGY COMPANY DAVID R. HENRICMS REPORTS ENGINEER SITE ENG7bEERING LIMERICK GENERATING %TATION TELEPHONE (610) T18'3772

_... ...==_ _......____..

MONTH FEBRUARY 1995 DAY AVEAAGE DAILY POwEP LEVEL DAY A IRAGE DAILY POWER LEVEL (WWE-NET) (WWE-NET) 1 0 17 0 2 0 18 0 3 0 19 292 4 0 20 953 5 0 21 0 6 0 22 0 7 0 23 0 8 0 24 411 9 0 25 1094 10 0 26 1030 11 0 27 1142 12 0 28 1141 13 0 14 0 15 0 16 0

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9-OPERATING DATA REPORT a

DOCKET NO. 50 - 353 DATE MARCH 13 1995

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COMPLETED 8V PECO ENERGY COMPANY DAVID R. HENRICKS REPORTS ENGINEER SITE 8.NGINEERING LIMERICK GENERATING STATION TELEPHONE (610) 718-3772 OPERATING STATUS

1. UNIT NAME: LIMERICK UNIT 2 NOTES: THERE WERE TWO LOAD DROPS
2. REPORTING PERIOD: FEBRUARY. 1995 GREATER THAN 20% THIS MONTH
3. LICENSED THERMAL POwCR(WWT): 3458 DUE TO REACTOR SCRAM AND A 4 NAMEPLATE RATING (GROS $ WWE): 1163 CONTROL ROD PATTERN ADJUSTMENT
5. DESIGN ELECTRICAL RATING (NET MwE): 1115
6. MAXIMUM DEPENDA8LE CAPACITY (GROSS MWE): 1155
7. MAXIMUM DEPENDABLE CAPACITY (NET MwE): 1115
8. IF CHANGES OCCUR IN CAPACITY RATINGS (ITEMS NUMBER 3 THROUGH 7) SINCE LAST REPORT. GIVE REASONS:

UNIT 2 WAS POWER RERATED TO THESE NEW CAPACITV RATINGS.

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

THIS MONTH VR-TO-DA'.E CUWt'LATIVE 11 HOURS IN REPORTING PERIOD 672 1.416 45.072

12. NUMBER OF HOURS REACTOR WAS CRITICAL 262.4 896.4 40.259.4
13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 0.0 14 HOURS GENERATOR ON-LINE 754.8 788.8 39.393.7
15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0
16. GROSS THERMAL ENERGY GENERATED (MWH) 467.158 1.493.151 123.722.734 17 GROSS ELECTRICAL ENERGY GENERATED (MwH) 150.400 475.000 40.858.580

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18. NET ELECTRICAL ENERGY GENERATED (MwH) 142.156 447.757 39.349.957

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PAGE 1 OF 2

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2 OPEft4 TING DATA REPORT (CONTINUED) DOCKET NO. 50 - 353

_ = - . _

DATE MARCH 13 1995 THIS MONTH VR-TO-DATE CUMULATIVE *

19. UNIT SERVICE FACTOR 23.0 55.7 87.4

___=-- ______._____ __.________.

20. UNIT AVAILABILITY FACTOR 23.0 55.7 87.4.

21 UNIT CAPACITY FACTOR (USING MDC NET) 19.0 29.8 82.7

22. UNIT CAPACITY FACTDR (USING DER NET) 19.0 29.8 82.7
23. UNIT FORCED OUTAGE RATE 33.8 9.1 3.6 24 SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS (TYPE. DATE. AND DURATION OF EACH):

REFUELING OUTAGE ENDED ON 2/19/95 AT 06: 16

25. IF SHUTDOWN AT END OF REPORT PERIOD. E5TIMATED DATE OF STARTUP: 02/19/95
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 ODERATION 02/01/90 01/08/90 l

PAGE 2 OF 2

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3-e UNIT SHUTDOWNS AND POWER REDUCTIONS DOCRET NO. 50 - 353 -

UNIT NAME LIMERICK UNIT.2

. . . . . . _ _ - - - - - ==

d DATE MARCH 13 1995 .

REPORT MONTH FEBRUARY. 1995 COMPLETED BY'PECO ENERGY COMPANY

_ _ =. __... ____.__....----- - --

DAVID R. HENRICKS

  • REPORTS ENGINEER SITE ENGINEERING LIMERICK GENERATING STATION TELEPHONE (610) 718-3772

_ . = . --- ......_..____.__- _ - - -- __._...._.-- .____-

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 * (4) (5) PREVENT hECURRENCE

. . . . . _ _ . . . . _ . . . _ _ _ _ _ . . . . . . . . . _ _ . . . . _ . . . . . . . . . . . . = - - - . _ _ _ . . . . _ - __...-- _- .__-

35 950219 5 438.3 C 4 N/A RC FUt REACTOR STARTUP. GENERATOR SYNCHRONIZED TO THE GRID AFTER OUTAGE COMPLETION.

I 36 950221 F 078.9 H 3 N/A RB CONROO  ! REACTOR SCRAM DUE TO ELECTRICAL i DISTURBANCE AT WITPAIN SUBSTATION.

37 950225 5 000.0 B 4 N/A RB CONROD REACTOR POWER WAS REDUCED TO 96% DUE TO-4 A CONTROL ROD PATTERN ADJUSTMENT.

1 38 950225 5 000.0 8 4 N/A RB CONROD REACTOR POWER WAS REDUCED TO 95% DUE TO A CONTROL ROD PATTERN ADJUSTMENT.

39 950226 S 000.0 B 4 N/A RB CONROD REACTOR POWER WAS REDUCED TO 57% DUE TO A CONTROL ROD PATTERN ADJUSTMENT.

517.2 i

L (1) (2) (3) (4) t 5- - FORCED REASON METHOD EXHIBIT G - INSTRUCTIONS S - SCHEDULED A - EQUIPMENT FAILUNE (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 (NOREG-0161)

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

G - OPERATIONAL ERROR (EXPLAIN) r H - OTHER(EXPLAIN) EXHIBIT I - SAME SOURCE 4

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