ML20070R500

Monthly Operating Rept for Apr 1994 for Oyster Creek Nuclear Generating Station

ML20070R500
Person / Time
Site:	Oyster Creek
Issue date:	04/30/1994
From:	Egan D, Krall J GENERAL PUBLIC UTILITIES CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
C321-94-2070, NUDOCS 9405200232
Download: ML20070R500 (7)

Text

.-.

GPU Nuclear Corporation

a Nuclear  ;;

'1=:r388 Forked River, New Jersey 08731-0388 609 971-4000 Writers Direct Dial Number:

C321-94-2070 May 12, 1994 U.S. Nuclear Regulatory Commission A'ITN: Document Control Desk Washington, D.C. 20555

Subject:

Oyster Creek Nuclear Generating Station Docket No. 50-219 Monthly Operating Report - April,1994 In accordance with the Oyster Creek Nuclear Generating Station Operating License No.

DPR-16, Appendix A, Section 6.9.1.C, enclosed are two (2) copies of the Monthly Operating Data (gray book infonnation) for the Oyster Creek Nuclear Generating Station.

If you should have any questions, please contact Brenda DeMerchant, Oyster Creek Licensing Engir.cer at (609) 971-4642.

Sincerely, gr J.J. Barton Vice President and Director Oyster Creek JJB/BDEM: jc '

Attachment (MOR RPT.APR) cc: Administrator, Region 1 Senior NRC Resident Inspector Oyster Creek NRC Project Manager ,(f" 9405 M

['. 200232 94043oADDCK PDR 05000219 PU Nuclear Corporation is a subsidiary of the General Public Utilities Corporation 2SGC0G

SUMMARY

APRIL.1994 f

Oyster Creek entered April at full power operation. On April 5 at 1551 hours0.018 days <br />0.431 hours <br />0.00256 weeks <br />5.901555e-4 months <br />, the plant automatically shutdown due to a failed density compensator in the Feedwater Control System's main stetun flow signal. The shutdown ended a record continuous mn for Oyster Creek of 413 days during which the plant generated 6,051,498 MWH net electric. The shutdown was utilized to perfonn maintenance on the drywell fans and to repair V-16-133, a source of increased unidentified leakage. After the drywell work was completed, a reactor start up commenced. The generator went on line with the grid at 1950 on April 13, and the plant returned to full power at 0240 on April 15. The plant maintained full power operation for the remainder of the month.

The plant generated 320,441 net megawatt-hours electric and attained a MDC net capacity factor of 73.1 % for the month.

4 MONTIIIJ OPERATING REPORT LICENSEE EVENT REPORTS There were no Licensee Event Reports submitted during the month of A pril,1994.

7 J

l l

4 I

l I

I

. . _ ~ . - . - _.

Oyster Cre@k Station #1 Docket No. 50-219 REFUELING INFORMATION - APRIL, 1994 Name of Facility: Oyster Creek Station #1 Scheduled date for next refueling shutdown Currently projected for September 10, 1994 Scheduled date for restart following refueling: Currently projected for November 14, 1994 Will refueling or resumption of operation thereafter require a Technical Specification change or other license amendment?

No Important licenedng considerations associated with refueling, e.g., _new or ,

different fuel design or supplier, unreviewed design or performance analysis methods, significant changes in fuel design, new operating procedures:

1. General Electric Fuel Assemblies - Fuel design and performance analysis methods have been approved by the NRC.

The number of fuel assemblies (a) in the core = 560 (b) in the spent fuel storage pool = 1900 (c) in dry storage = 8 The present licensed spent fuel pool storage capacity and the size of any increase in licensed storage capacity that has been requested or is planned, in number of fuel assemblies:

Present Licensed Capacity: 2600 The projected date of the last refueling that can be discharged to the spent fuel pool assuming the present licensed capacity:

Full core discharge capacity to the spent fuel pool ~ will be available.

through the 1996 refueling outage. l NRC_RPT.WPD/120 <

AVERAGE DAILY POWER LEVEL NET MWe DOCKET #. . . . . . . . , . . .50-219 UNIT. . . . . . . . . OYSTER CREEK #1 REPORT DATE. . . . . . . . . 05-04-94 COMPILED BY . . . . . . . . JIM KRALL ,

TELEPHONE # . . . . . . .609-971-4115 MONTH: APRIL, 1994 DhX. li? Dh1.

- 2

1. 629 16. 620

2. 620 17. 624 a

3. 628 18, 625 ,

4. 627 19. 622

5. 413 20. 622

6. 0 21. 622

7. 0 22. 622

8. 0 23. 623

9. 0 24. 622

10. 0 25. 622

11. 0 26. 624

12. 0 27, 624

13. 40 28, 622

14. 507 29, 622

15. 620 30. 622 1

NRC RPT.WPD/121  ;

i i

~ . - > - - ~ . . . . - - - - .- - - . - . . . -- - . - . - . - - .

. OPERATING DATA REPORT OPERATING STATUS

1. DOCKET: 50-219

2. REPORTING PERIOD: 4/94

-3. UTILITY CONTACT: JIM KRALL (609)971-4115

4. LICENSED THERMAL POWER (MWt): 1930

5. NAMEPLATE RATING (GROSS MWe): 687.5 x 0.8 = 550 l

6. DESIGN ELECTRICAL RATING (NET MWe): 650

7. MAXIMUM DEPENDABLE CAPACITY (GROSS MWe): 632 3

8. MAXIMUM DEPENDABLE CAPACITY (NET MWe): 610-

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 YEAR CUMULATIVE 5

12. REPORT PERIOQ HOURS 719.0 2879.0 213479.0

13. HOURS RX CRITICAL 549.5 2709.5 142308.5 ,

14. RX RESERVE SHUTDOWN HRS 0.0 0.0 918.2

15. HRS GENERATOR ON-LINE 523.0 2683.0 138884.7 .

16. UT RESERVE SHTDWN HRS 0.0 0.0 0.0

17. GROSS THERM ENERGY (MWH) 999952 5037971 238151348

18. GROSS ELEC ENERGY (MWH) 334216 1696671 79940985 ,

19. NET ELEC ENERGY (HWH) 320441 1632636 76680350 i

20. UT SERVICE FACTOR 72.7 93.2 65.1

21. UT AVAIL FACTOR 72.7 93.2 65.1

22. UT CAP FACTOR (MDC NET) 73.1 93.0 58.6

23. UT CAP FACTOR (DER NET) 68.6 87.2 55.3

24. UT FORCED OUTAGE RATE 27.3 6.8 10.4 t

25. FORCED OUTAGE HRS 196.0 196.0 ~16153.3

' 26. SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS (TYPE, DATE, DURATION):

15-R OUTAGE, SEPTEMBER 10, 1994, 55 - 65 DAYS

27. IF CURRENTLY SHUTDOWN, ESTIMATED STARTUP DATE:

N/A P NRC_RPT.WPD/122

s.. .

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO: 50-219 tlNIT NAME: Dyster Creek DATE: April 09, 1994 COMPLT'D BT: David M. Ecan TELEPHONE: ~71-4818 9

REPORT MONTH: _ April. 1994 TYPE METHOD OF SHUTTING CORRECTIVE No. ') AT E F: Forced DURATION REASON (1) DOWN THE REACTOR OR ACTIONS / COMMENTS S: Scheduled (hours) REDUCING POWER (2) i 3 940405 F 196.0 a 3 The reactor was automatically shutdown at 1551 hours0.018 days <br />0.431 hours <br />0.00256 weeks <br />5.901555e-4 months <br /> due to a turbine trip. The turbine tripped on high reactor level which occurred when a density

, conpensator for the main steam flow r iriput to the feedwater control system failed. The plant returned to service at 1950 on

' Aprit 13, 1994 following repairs g and additional drywell maintenance.

SUMMART:

(1) REASON (2) METH00

a. Equipment Falture (Explain) - e. Operator Training & Lic Exam 1. Manual

b. Maintenance or Test f. Administrative 2. Manual Scram i

c. Refueling g. Operational Error (Explain) 3. Automatic Scram Other (Explain) Other (Explain)

'

• d. Regulatory Restriction h. 4.

, , n .e c - w , + m - - - - . _ . - - - - - - - - - _ _ - - - - - - - - - - -