ML20083M468

Monthly Operating Rept for Apr 1995 for Oyster Creek Nuclear Generating Station

ML20083M468
Person / Time
Site:	Oyster Creek
Issue date:	04/30/1995
From:	J. J. Barton, Edelmann P GENERAL PUBLIC UTILITIES CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
C321-95-2162, NUDOCS 9505190259
Download: ML20083M468 (7)

Text

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. l GPU Nuclear Corporation l

0 ElNuclear  :: sn:r388 Forked P,ver. New Jersey 08731-0388 i 609 971-4000 l Wnter's Direct Dial Number: l l

May 9,1995 l C321-95-2162 i

U.S. Nuclear Regulatory Commission l A'ITN: Document Control Desk Washington, D.C. 20555 Dear Sir-l Oyster Creek Nuclear Generating Station

Subject:

Docket No. 50-219 Monthly Operating Report - April,1995

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In accordance with the Oyster Creek Nuclear Generating Station Operating License No. l DPR-16, Appendix A, Section 6.9.1.C, enclosed are two (2) copies of the Monthly I Operating Data (gray book information) for the Oyster Creek Nuclear Generating Station.

l l

If you should have any questions, please contact Brenda DeMerchant, Oyster Creek Licensing Engineer at (609) 971-4642, 1 Sincerely,

[

• w J Barton e President and Director ster Creek JJB/BDEM: jc Attachment l

cc: Administrator, Region i Senior NRC Resident Inspector Oyster Creek NRC Project Manager (c:\wpS1\demerchn\MnR RPT.apr) (

9505190259 950430 PDR ADOCK 05000219 R PDR A GPU Nuclear Corporation is a subsidiary of the General Public Utilities Corporation

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SUMMARY

APRIL,1995 Oyster Creek entered April at 100% reactor power. On April 8 and 20, power was reduced by 5% to remove the second stage reheaters from service to perform troubleshooting and maintenance. The plant ended April at full load. i During April, Oyster Creek generated 457,427 net MWH electric and attained a MDC net capacity factor of 102.8%.  ;

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MONTIILY OPERATING REPORT LICENSEE EVENT RELTIRI LER 94-016R1 .

On September 12, 1994, Local Leak Rate Testing (LLRT) results indicated that Main Steam Isolation Valve NSO4B exceeded the leak rate limit of 12.08 3CFH at 20 psig as specified in the plant Technical Specifications. The leak mte was quantified as 36.91 SCFH at 20 psig.

The cause of this occurrence was attributed to a combination of component installation and wear. The safety significance of this event is considered minimal as the total penetration leakage would have been limited by Main Steam Isolation Valve NS03B in the same steam header. Maintenance was perfonned on the valve to restore seat integrity. The as left local leak rate test, performed prior to stanup, was satisfactory.

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Oyster Creek Station #1 Desket No. 50 219 REFUELING INFORNIAll0N APRIL,1995 Name of Feeility: Oyster Creek Station #1 Seheduled date for next refueling shutdown:

September,1998 Scheduled date for restart following refueling: Currently proiested for November,1995 Will refueling er resumption of operaties thereafter require a Technical Specifiestion cheap er other liesses amendaient?

Ne importent licensing seasideratione esseeleted with refueling, e.g, now or different feel desip er supplier, moreviewed desip or per'ermance snelysis mothede, eipifissat shenya in fuel desiri, new operating procedures:

1. General Electric Fuel Assemblies Feel desip and performenee emelysis methods have been approved by the NRC.

The number of fuel assemblies (s)in the owe - 580 (b) la the opent fuel eteress peel - 2048 leiin dry eteress - 24 The present licensed opent feel peel eterop especity and the size of may incrosse in licensed eterop especity that has been requested er le pleaned, is number of fuel assemblies:

Present Licensed Capacity: 2846 The preissted dets of the lest refwe%.e that een he discheryd to the spent fuel peel essemies the present liosased especity:

Full core diesberp especity to the opent fuel peel will be eveilable threesh the 1998 refueling esteps, a

(p :\ doc r05 \5414-95kydsta .cor\ report: 13)

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. OPERATING DATA REPORT l OPERATING STATUS

1. DOCKET: 50 219

2. REPORTING PERIOD: Apr95

3. UTILITY CONTACT: PAUL G. EDELMANN (809 9714097)

4. LICENSED THERMAL POWER (MWt): 1930

5. NAMEPLATE RATING (GROSS MWe): 887.5 x 0.8 = 550

8. DESIGN ELECTRICAL RATING (NET MWe): 850

7. MAXIMUM DEPENDA8tE CAPACITY (GROSS MWe): 841

8. MAXIMUM DEPENDA8LE CAPACITY (NET MWe): 819

9. IF CHANGES OCCUR ABOVE SINCE LAST REPORT, GIVE REASONS:

NONE

10. POWER LEVEL TO WHICH RESTRICTED,IF ANY (NET MWe):

NONE

11. REASON FOR RESTRICTION,IF ANY:

NONE MONTH Y.l,AR CUMULATIVE

12. REPORT PERIOD HOURS 719.0 2879.0 222239.0

13. HOURS RX CRITICAL 719.0 2879.0 148879.7

14. RX RESERVE SHUTDOWN HR$ 0.0 , 0.0 91?.2

15. MRS GENERATOR ON LINE 719.0 2879.0 145178.1

18. UT RESERVE SMTOWN HRS 0.0 0.0 0.0

17. GROSS THERM ENERGY (MWM) 1388044 5428135 249951830

18. GROSS ELEC ENERGY (MWM) 474172 1881307 83887508

19. NET ELEC ENERGY (MWH) 457427 1795532 80470819

20. UT SERVICE FACTOR 100.0 100.0 85.3

21. UT AVAll FACTOR 100.0 100.0 85.3

22. UT CAP FACTOR (MDC NET) 102.8 100.8 59.1

23. UT CAP FACTOR (DER NET) 97.9 95.9 55.7

24. UT FORCED OUTAGE RATE 0.0 0.0 10.1

25. FORCED OUTAGE HR$ 0.0 0.0 18289.8

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I 28. SHUTDOWNS SCHEDULED OVER NEXT I MONTHS (TYPE, DATE, DURATION):

NONE

27. IF CURRENTLY SHUTDOWN, ESilMATED STARTUP DATE: NlA

AVERAGE DAILY POWER LEVEL NET MWe n

DOCKET #. . . . . . . . . . . 50 219 UNIT. . . . . . . . . OYSTER CREEK #1 REPORT DATL . . . . . . . 5I2195 COMPILED BY . . . . . . . . PAUL G. EDELMANN TELEPHONE # . . . . . . 809 9714087 MONTH: MARCH,1995 m H M M

1. 840 18. 838

2. 838 17. 838

3. 838 II. 837

4. 833 18. 833

5. 840 20. 832

8. 837 21. 832

7. 837 22. 835

8. 838 23. 838

9. 838 24. 839

10. 840 25. 834

11. 838 28. 838

12. 837 27. 533

13. 837 28. 831 14, 838 29. 831

15. 840 30. 834 1

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