ML20112J184

Monthly Operating Rept for May 1996 for Cooper Nuclear Station

ML20112J184
Person / Time
Site:	Cooper
Issue date:	05/31/1996
From:	Herron J NEBRASKA PUBLIC POWER DISTRICT
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NLS960116, NUDOCS 9606190314
Download: ML20112J184 (5)

Text

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• e COOPER NUCLEAR STATION P.o. 90X se. BROWNVILLE. NEBRASKA 80321 TELEPHONE (402)e253811 Nebraska Public Power District

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NLS960116 June 14, 1996 U. S. Nuclear Regulatory Commission Attention: Document Control Desk

. Washington, D.C. 20555

Subject:

Monthly Operating Status Report for May 1996, Docket No. 50-298.

Gentlemen:

., Enclosed for your information and use is the Cooper Nuclear Station Monthly Operating Status Report for May' 1996. The report includes Operating Status, Average Daily Unit Puer Level, Unit Shutdown Data and a Narrative Summary of Operating Experience for the month of May.

Should you have any comments, or require additional information regarding i I

this report, please contact me.

Sincerely, 1 -

J T. Herron P. ant Manager ]

JTH:PLB:t1b  ;

Enclosures cc: ANI Library R. W. Beck and Associates T. H. Black T. L. Bundy L. J . Callan J. M. Cline ]

A. L. Dostal i R. L. Gumm l G. R. Horn i INPO Records Center E. A. Lanning ]

J. L. Long W. R. Mayben J. R. McPhail J. H. Mueller NRC Senior Resident Inspector R. J . Singer 1l 200023 I 9606190314 960531 i I PDR ADOCK 05000299 R PDR

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4 OPERATING DATA REPORT DOCKET NO. 050-0298 UNIT CNS DATE June 14. 1996 OPERATING STATUS TELEPHONE (402) 825-5295 l l

1. Unit Name: Cooper Nuclear Station Notes l l

2. Reporting Period: May1996 ,

3. Licensed Thermal Power (MWt): 2381- l

4. Nameplate Rating (Gross MWe): 836

6. Design Electrical Rating (Net MWe): 778

6. Maximum Dependable Capacity (Gross MWe): 787

7. - Maximum Dependable Capacity (Net MWe): 764

8. Il 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 Restriction, if Any:

i This Month Yr.-to Date Cumulative Hours in Reporting Period 74~4 37647:0~ 1Y271T4-~0~ -l 11.

12. Number of Hours Reactor Was Critical 74~4:0 3 6~4 I 0 147688T4-

- 13. Reactor Reserve Shutdown Hours 0~.0~ O'.0 0:0~

14 Hours Generator On-Line 74~4TO 3 63Il 140 575E l i

15. Unit Reserve Shutdown Hours 0.0 @ G l 16 Gross Thermal Energy Generated (MWH) '

17. Gross Electric Energy Generated (MWH) 03 DMM3 OMEG

18. Net Electric Energy Generated (MWH) 5 4'6 0 7'8 0 276~4~7;360.0 9TB73 4B'97

19. Unit Service Factor 100:0 993 73 7

20. Unit Avadability Factor T00 0 99.6 73.2

31. Unit Capacity Factor (Using MDC Net) 9K1 95 0 62 B~

33. Unit Capacity Factor (Using DER Net) 9'4.3 9I3 BTI

33. Unit Forced Outage Rate

24. Shutdown Scheduled Over Next 6 Months (Type, Date, and Duration of Each): Scheduled Outaae. 6/1/96. ~ 10 davs

- 25. If Shut Down At End of Report Period, Estimated Date of Startup: N/A

' 36. Units in Test Status (Prior to Commercial Operation): Forecast Achieved INITIAL CRITICALITY  ;

INITIAL ELECTRICITY COMMERCIAL OPERATION

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a AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 050-0298 UNIT CNS DATE June 14. 1996 TELEPHONE (402) 825-5295 MONTH May 1996 I

DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Ne t)

EBy Aeap Ihily RwrIsel Ihy Aeap Ihily Raec Isel  !

01 767 17 749 02 78 18 748 03 76 19 709 1

04 78 20 741  !

05 761 21 736 06 76 22 737 07 78 23 739 1

08 764 24 738 i 1

09 75 25 727 10 748 26 726 11 753 27 728 12 742 28 687 13 751 29 699 14 752 30 698 15 751 31 455 16 752 INSTRUCTIONS On this format, list the average daily unit power level in MWe-Net for each day in the reporting month. Compute to the nearest whole megawatt.

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 050-0298 UNIT NAME Cooper Need: - Station-DATE June 14.1999 COMPLETED BY P. L. Engineer REPORT MONTH May 1996 TELEPHONE (402) 625-5295 Method Licensee Cause & Corrective Duration Of Event System

• Component' Action to No. Date Type' (Hours) Reason 8 Shutting Report Code Code Prevent Recurrence Down Reactor' 96-03 5/31/96 S N/A H 5 N/A N/A N/A Reducing power for short outage beginning on 6/1/96 to replace fuel leaker. Estimated return to power operation ~ 6/10/98.

1 F: Forced 2 Reason: 3 Method: 4 Exhibit G - Instructions for S: Scheduled A - Equipment Failure (Explain) 1 - Manual Preparation of Data Entry B - Maintenance or Test 2 - Manual Scram Sheets for Ucensee Event C - Refuehng 3 - Automatic Scram Report (LER) File (NUREG-0161)

D - Regulatory Restnction 4 - Continued E - Operator Training & Ucense Examination 5 - Reduced Load 5 Exhitnt t - Same Source F - Admemstrative 6 - Other G - Operational Error (Explain)

H - Other (Explain)

OPERATIONS NARRATIVE COOPER NUCLEAR STATION May 1996

Fuel leaker power suppression operation continued throughout the month.

i Trending of the fuelleak indicated continued deterioration and a shutdown to replace the fuel leak was planned for June 1996. The control rod

, patterns used to suppress the fuel leak increased thermal limits to near Technical Specification numbers and required reduced power operation.

On 5/31/96, power reductions were commenced to start the fuel leak replacement outage.

A capacity factor of 96.1 was achieved for the month.

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