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Monthly Operating Repts for Jul 1995 for Limerick Generating Station
	ML20087F079
Person / Time
Site:	Limerick
Issue date:	07/31/1995
From:	Gallagher M, Henricks D; PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	; NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
	NUDOCS 9508150111
	Download: ML20087F079 (11)
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Sanatoga, PA 19464-0920 T.S.6".9.1.6 l

August 10, 1995 Docket Nos. 50-352 50-353 License Nos. NPF-39 NPF-85 a

U. S. Nuclear Regulatory Commission Attn:

Document Control Desk j

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 July 1995 forwarded i

pursuant to Technical Specification 6.9.1.6.

i Very truly yours, Midhael P. Gallagher

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Director - Site Engineering drh-Enclosures cc:

T. T. Martin, Administrator, Region I, USNRC N. S. Perry, USNRC Senior Resident Inspector LGS l

W. G. MacFarland, Vice President, LGS I53100 9508150111 950731 PDR-ADOCK 05000352

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Attachment to Monthly l

Operating Report for.

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Jtsy 1996 j

q Limerick Generating Station Unit 1 -

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~ July 1 through July 31,1996, j

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l Narrative Summary of Operatina Experiences

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, Unit 1 began the month of July at a nominal 100% of rated thermal power (RTP).

j On July 4,1996, at 0102 hours0.00118 days 0.0283 hours 1.686508e-4 weeks 3.8811e-5 months , power was reduced to 90% RTP for main.

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turbine valve testing. Power was restored to 100% RTP shortly thereafter.

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On July 5, 6,13,14,16,16,17,18, 24, 26, 26, 27, 28 and 29,1906, power was reduced slightly due to high turbine backpressure as a result of elevated outside l

air temperature. Power was restored to 100% RTP when turbine ' =4- ::N j

was retumed to acceptable values.

j

,m On July 8,1996, at 1320 bc um, power was reduced to 90% RTP to insert control j

rod 34-43 in order to supprass power near the suspected fuel leak. Power was :

restored to 100% RTP at 1442 hours0.0167 days 0.401 hours 0.00238 weeks 5.48681e-4 months On July 19,1996, at 1642 hours0.019 days 0.456 hours 0.00271 weeks 6.24781e-4 months , the reactor pressure vessel level increased to.

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42 inches, the C feedwater hester string lantatart and reactor power traces,

indicated that power had increased to approximately 110% and decreased to

. 80%. This was the result of a 1B recirculation motor-generator est perturbation.

Reactor power was reduced to 90% RTP por procedure._ Power was further

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reduced to 96% NTP and the C feedwater hoster string was retumed to servios.

Power was restored to 97% RTP on July 20,1996, at 0334 hours0.00387 days 0.0928 hours 5.522487e-4 weeks 1.27087e-4 months .

I On July 20,1996, at 2242 hours0.0259 days 0.623 hours 0.00371 weeks 8.53081e-4 months , power was reduced to 75% RTP for control rod hydraulic control unit (HCU) maintenance. Power was further reduced on July l

22,1996, at 070u nours, to 8b5 RTP for condenser waterbox cleaning l

Following waterbox cleaning, power was restored to 76% RTP at 2300 hours0.0266 days 0.639 hours 0.0038 weeks 8.7515e-4 months .

i HCU maintenance was completed on July 23,' 1996, and power ascension to j

100% RTP began at 2044 hours0.0237 days 0.568 hours 0.00338 weeks 7.77742e-4 months . Power was restored to 100% RTP at 0820 l

hours on July 24,1996.

1

^1 On July 30,1996, at 2300 hours0.0266 days 0.639 hours 0.0038 weeks 8.7515e-4 months , power was reduced to 96% RTP for control rod yi exercise testing. Power was restored to 100% RTP, at 0201 hours0.00233 days 0.0558 hours 3.323413e-4 weeks 7.64805e-5 months , on July 31, f

1996.

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

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Challenges to Main Steam Safety Relief Valves l

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

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DVEROGE DOILY UNIT POWER LEVEL

1-DOCKET No. 50 - 352 UNIT LIMERICK UNIT 1

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LATE AUGUST 10.1995 COMPANY PECO ENERGY COMPANY DAVID R.

HENRICKS REPORTS ENGINEER SITE ENGINEERING LIMERICK GENERATING STA TION TELEPHONE (610) 718-3772 MONTH JULv.1995 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL

.(wwE-NET)

(MwE-NET) 1 1036 17 1006 2

1044 18 1019 3

1048 19 1015 4

1036 20 998 5

1027 21 723 6

1028 22 641

+

7 1039 23 791 0

1036 24 1014 9

1051 25 1013 10 1039 26 1001 11 1044 27 1013 12 1039 28 1005 13 1015

.75 1000 14 981

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1029 15 897 31 1028 16 983

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OPEAATING DATA REPORT DOCKET NO. 50 - 352 DATE AUGUST 10.1995 COMPLETED BY PECO ENERGY COMDANY DAVID R. HENRICKS REPORTS ENGINEER SITE ENGINEERING LIMERICK GENERATING STATION TELEPHONE L610) 718-3772 OPERATING STATUS l

1 UNIT NAME: LIMERICM UNIT 1 NOTES: THERE wERE 2 LOAD DROPS 2,

REPORTING PERIOD:

JULY. 1995 GREATER THAN 20% THIS MONTH 3.

LICENSED THERMAL POWER (MWT):

3293 DUE TO CONTROL ROD HYDRAULIC 4

NAMEPLATE RATING (GROSS MwE):

1092 CONTROL UNIT MAINTENANCE AND

5. DESIGN ELECTRICAL RATING (NET MwE):

1055 CONDENSER WATER Box CLEANING j

6.

MAXIMUM DEPENDABLE CAPACITY (GROSS MwE): 1092 7 MAXIMUM DEPENDABLE CAPACITY (NET MwE):

US 8.

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

9.

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

10. REASONS FOR RESTRICTIONS. IF ANY:

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THIS MONTH VR-TO-DATE CUMULATIVE 11 MOURS IN 9EPORTING PERIOD 744 5,087 83.231 2.

NUMBER OF h00R$ REACTOR WAS CRITICAL T44.0 4.986.3 69.094.6

13. REACTOR RE!.ERVE SHUTDOWN HOURS 0.0 0.0 0.0 14 HOURS GENERATCR ON-LINE 744.O 4.949.8 67.975.3

15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0

16. GROSS THERMAL ENERGv GENERATED (MwH) 2.342.750 16.703.670 210.420.208 17 GROSS ELECTRICAL ENERGY GENERATED (MwH) 763.703 5.250.000 62.434.280

10. NET ELECTRICAL ENERGY GENERATED (wwH) 735.331 5.071.246 65.715.252 l

PAGE 1 05 2

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1 OPEQQTING DATO REPORT (CONTINUED)

DOCRET NO. 50 - 952 1-DATE AUGUST 10.1995 THIS MONTH VR.TO-DATE CUMULATIVE

-19. UNIT SERVICE FACTOR-100.0 97.3 81.7

20. UNIT AVAILABILITY FACTOR

-100.0 97.3 81.7 21.'JNIT CAPACITY FACTOR (USING WDC NET) 93.7 94.5 74.8

22. UNIT CAPACITY FACTOR (USING DER NET) 93.7 94.5 74.8

23. UNIT FORCED OUTAGE RATE O.0 0.8 4.0 24 SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS (TYPE. DATE. AND DURATION OF EACH):

25. IF SHUTDOWN AT END OF REDORT PERIOD. ESTIMATED DATE OF STARTUD 26.. UNITS IN TEST STATUS (PRIOR TO COMMERCIAL OPERATION):

FORECAST ACHIEVED INITIAL CRITICALITV 12/19/84 12/22/64 INITIAL ELECTRICITY MID APRIL 85 4/13/85 COMMERCIAL OPERATION IST OTR 86 2/01/86 f

PAGE 2 OF 2

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UNIT SHUTDOWNS AND POWER REDUCTIONS DOCCET NO. GO - 352 UNIT NAME LIMERICK UNIT 1 DATE AUGUST 10,1995 REPORT MONTH JULY. 1995 COMPLETED BY PECO ENERGY COMPANY DAVID R.

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

l METHOD OF l LICENSEE l SYSTEM COMPONENT! CAUSE AND CORRECTIVE TVPE DURATIONIREASONISHUTTING DOWNi EVENT l CODE CODE l ACTION TO NO.

DATE (1)

(HOURS))

(2) l REACTOR (3) l REPO9T a (4)

(5) l PREVENT RECURRENCE I

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71 l 950704 l 5 000.0 i

B 4

l N/A HA VALVEA REACTOR POWER WAS REDUCED TO 90% FOR l

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MAIN TURBINE VALVE TESTING.

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I 7; i 950708 5

000.0 l

A 4

i N/A RS CONROD REACTOR POWER WAS REDUCED TO 90% TO l

INSERT CONTROL ROD TO SUPPRESS POWER l

NEAR THE SUSPECTED FUEL LEAK.

~3 950719 F

000,0 A

4 1-95-003 CB GENERA REACTOR POWER WAS REDUCED TO 95% DUE TO 1B RECIRCULATION M-G SET PERTURBATION.

74 950720 000.0 8

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N/A RD CRDRVE REACTOR POWER wAS REDUCED TO 75% FOR I

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CONTROL ROD HvDRAULIC CONTROL UNIT MAINT 1

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75 l 950722 S l 000.0 e

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N/A i

MC HTEXCH l REACTOR POWER WAS REDUCED TO 60% DUE TO CONDENSER WATERBOX CLEANING.

I 76 950730 5

000.0 B

4 N/A RH CONROD REACTOR POWER WAS REDUCED TO 95% DUE TO 1

CONTROL ROD EXERCISE TESTING.

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(2)

(3)

(4)

- FORCED REASON ME* HOD EXHIBIT G-INSTRUCTIONS S-SCHEDULED A - EQUIPMENT FAILURE (EXPLAIN)

. 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 - REGULATORS RE$TRICTION 4 - OTHER (E*PLAINI FILE (NUREG-0161)

E - OPERATOC TRAINING + LICENSE EXAMINATION F - ADMINISTRATIVE (S)

G - OPERATIONA. ERROR (ERPLAINf M - OTHER(EAPLAIN)

EXHIBIT I - SAME SOURCE

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j Docket No. 50453 gMb v

Attachment to Monthly cn Operating Report for.-

July 1995 Umorick Generating Station Unit 2 July 1 through July 31,' 1995 1.

Narrative Summary d Operating Experiences Unit 2 began the month of July at a nominal 100% of rated thsemal power (RTP).

' On' July 6,13,14,15,17,23,25,26,27,28 ard 29,1995, power was reduced slightly due to high tuttine backpressure as a result of elevated outside air temperature. Power was restored to 100% RTP when turbine backpressure was retumed to acceptable values.

' On July 17,1995, at 1805 hours0.0209 days 0.501 hours 0.00298 weeks 6.868025e-4 months , the 2B reactor recirdion pump tripped due to a spurious high oE temperature spike. Power was stabei zed at 32% RTP and the unit performed the necessary actions for single reactor recirculation pump operation. At 1936 hours0.0224 days 0.538 hours 0.0032 weeks 7.36648e-4 months , the 28 reactor recirculation pump was started. Power ascension to 100% RTP began at 2312 hour0.0268 days 0.642 hours 0.00382 weeks 8.79716e-4 months sJ On July 18,1995, at 0325 hours0.00376 days 0.0903 hours 5.373677e-4 weeks 1.236625e-4 months , power was restored to 100% RTP.

On July 18,1995, at 0503 hours0.00582 days 0.14 hours 8.316799e-4 weeks 1.913915e-4 months ., power was radiced to 97% RTP due to a thermal limit indicating greater than one. It was kiter determined that the indicated thermal limit in excess of one was due to a computer malfunction Power was restored to 100% RTP at 1500 hours0.0174 days 0.417 hours 0.00248 weeks 5.7075e-4 months .

On July 30,1995, at 0015 hours1.736111e-4 days 0.00417 hours 2.480159e-5 weeks 5.7075e-6 months , power was reduced to 90% RTP for main turbine valve testing. Power was restored to 100% RTP at 0300 hours0.00347 days 0.0833 hours 4.960317e-4 weeks 1.1415e-4 months .

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

II.

Challenges to Mair1 Steam Safety Relief Valves There were no challenges to the Main Steam Safety Relief Valves during the month of July.

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s NhY OPERATING DATA REPORT DOCMET NO. 50 - 353 DATE AUGUST 10. 1995

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

COMPLETED BV PECO ENERGV COMPANY DAVID R.

HENRICKS REDORTS ENGINEER SITE ENGINEERING LIMERICK GENERATING STATION TELEPHONE (610) 718-3772 OPERATING STATUS

1. UNIT NAME: LIMERICK UNIT 2 NOTES: THERE WAS 1 LOAD DROP I

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2. REPORTING PERIOD:

JULV. 1995 GREATEc THAN 20% THIS MONTH 3.

LICENSED THERMAL POWER (MwT):

3458 DUE TO REACTOR RECIRCULATION i

4 NAMEPLATE. RATING (GROSS MwE):

1163 PUMD TRIP.

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5. DESIGN ELECTRICAL RATING (NET MwE):

1115 6.

MAMIMUM DEPENDABLE CAPACITY (GROSS NwE): 1155 7 MAXIMUM DEPENDABLE CAPACITV (NET MWE):

1115 8.

IF CHANGE 5 OCCUR IN CAPACITV RATINGS (ITEMS NUMBER 3 THROUGH 7) SINCE LAST REPORT. GIVE REASONSr 9.

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

10.-REASONS FOR RESTRICTIONS. IF ANY:

THIS uONTH VR-TO-DATE CUMULATIVE 11 HOURS IN REPORTING PERIOD 744 5.087 48.743

12. NUMBER OF HOURS REACTOR WAS CRITICAL 744.0 4.567.4 43.930.4

13. REACTOR RESERVE SHUTDOWN HUURS 0.0 0.0 0.0 14 HOURS GENERATOR ON-LINE 744.0 4.454.2 43.059.1

15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0

16. GROS $ THERMAL ENERGY GENERATED (MwH) 2.536.414 13.976.555 136.206.138

17. GROSS ELECTRICAL ENERGY GENERATED (MwH) 841.200 4.642.200 45.025.780

18. NET ELECTRICAL ENERGv GENERATED (MwH) 812.705 4.482.061 43.384.261 DAGE 1 OF 2

-- c1 4

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OPERQTING DOTA REPORT (CONTINUED)

DOCGQT NO. 60 - 353

-4 DATE AUGUST 10 1995

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THIS WONTH VR-TO-DATE CUMULATIVE s

19. UNIT SERVICE FACTOG 100.0 87.6 88.3

20. UNIT AVAILA81LITv F ACTOR 100.0 87.6 88.3

21. UNIT CAPACITV FACTOR [USING MDC NET) 98.0 79.4 83.9

22. UNIT CAPACITV FACTOR (USING DER NET)

~98.0 79.4 83.9

23. UNIT FORCED OUTAGE RATE 0.0 1.7 3.3 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 PAGE 2 OF 2

..'g 4

i UNIT SHUTDOWNS G8cD POWER REDUCTIONS

. DOCCIET NO. 50 - 353 UNIT NAME LIMERICK UNIT 2 DATE AUGUST 10, 1995 j

REPORT MONTH JULY. 1995 COMPLETED By PECO ENERGY COMPANY DAVID R. HENRICKS REPORTS ENGINEER SITE ENGINEERING LIMERICM GENERATING STATION TELEPHONE (610) 718-3772 I

i L

l METHOD OF i LICENSEE SYSTEMICOMPONENT) CAUSE AND CORRECTIVE l

ITYPE. DURATION REASONjSHUTTING DOWNI EVENT CODE I CODE l ACTION TO NO.!

DATE l (1)

(HOURS)I (2) l REACTOR (3) l REPORT a I (4) l (5)

-l PREVENT RECURRENCE I

I I

60 950717 i F

000.0 A

I A

N/A CB PUMPXA l REACTOR POWER WAS REDUCED TO 32% DOE TO l

1 1 28 REACTOR RECIRCULATION PUMD TRIP.

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i 65 950718 l r

000.0 A

I 4

i N/A I

SH INSTRU f REACTOR POwEA WAS REDUCED TO 97% DuE TO l

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l A COMPUTER MALFUNCTION INDICATING A l

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THERMAL LIMIT GREATER'THAN ONE.

I 66 950730 S

000.0 B

4 N/A HA VALVEN REACTOR POWER WAS REDUCED TO 90% DUE TO MAIN TURBINE VALVE TESTING.

I l

(1)

(2)

(3)

(4)

F - FORCED REASON METHOD EXHIBIT G-INSTRUCTIONS S - SCHEDULED A - EOUIPMENT 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) 0 - REGULATORv #ESTRICTION 4 - OTHER (EXPLAIN)

FILE (NUREG-0161)

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

G - OPERATIONAL ERDOR (EXPLAIN)

H - OTHER(EXPLAIN)

EXHIBIT I - SAME SOURCE s

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ML20087F079

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