ML20104B092

Monthly Operating Rept for Aug 1992 for CNS

ML20104B092
Person / Time
Site:	Cooper
Issue date:	08/31/1992
From:	Gardner R, Wheeler S NEBRASKA PUBLIC POWER DISTRICT
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
CNSS923076, NUDOCS 9209140342
Download: ML20104B092 (5)

Text

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,y COOL't H NUCLL AR ST AllON A Nebraska Public Power District 1- .m=====-==n.=--..--

"" ""* h""Ci'#G "07^ ""' -m CNSS923076 September 4, 1992 Cocument Control Desk U. S. Nuclear Regulatory Commission Washington, D.C. 20555

Subject:

Monthly Operating Statue Report for August 1992, Docket No. 50-298.

Gentlemen:

Enclosed for your information and use is the Cooper Nuclear Station Monthly Operating Status Report for August 1992. The report includes Operating Status, Average Daily Unit Power Level Unit Shutdown Data and a Narrative Summary of Operating Experience.

Should you have any comments, or require additional information regarding this report, please contact me.

Sincerely,

,3 ,c ~ ~

R. L. Gardner Plant Manager RLC:SCW:Ju Enclosures cc: G. D. Watson w/ enclosures R. D. Martin w/ enclosures 1

140006 gi 9209140342 920831 ADOCK 05000298

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PDR R PDR D,

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OPERATING DATA REPORT DOCKET NO. 050-0298 '

UNIT C 4S

• CATE Septemaer 4. 1992 OPERATING STATUS TELEPHONE (402) 825-5487

1. Unit Name: COODer Nuclear Station Notes 2 Reporting Penod: Auaust 1Q91

3. Ucensed Thermal Power (MWt). 2381

4. Nameplate Rating (Gress MWe): 836 5 Design Electrical Rating (Net MWe): 778 ,

6. Maximum Dependable Capacity (Gross MWe); 787

7. Maximum Dependable Capacity (Net MWe): 764 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): = 700 MWe Net

10. Paasons For Restriction,if Any: Restriction is based on a temporars MAF RAT limit of 0 81 Imoosed due to revised DBA LCriA,,,3.03tvWs This Month Yr.-to-Date Cumulative

11. Hours in Reporting Period 744.0. 5.855.0 159.288 0

12. Number of Hours Reactor Was C#1tical 744.0- 5.621.1 122.121.4 7 13 Reactor Reserve Shutdown Hours 0,0 0.0 0.0

14. Hours Generator On-Une 744.0 5.600.1 120.372 q. .

15, Unit Reserve Shutdown Hourt 00 0.0 0.0 10 Gross Thermal Energy Generated (MWH) L523.040.0 12.845.616.0 246.401.66& O

17. Gross Electric Energy Generated (MWH) 498.559 0 _ 4.271.192.0 79.841.344.0 l 18. Net Electric Energy Generated (MWH) 484.005 0 4.142.991.0 77.073.378.0

19. Unit Service Factor 100.0 95.6 75 Q. .

l- 20 Unit Availability Factor 100 0 75.6 95.6__

21, Unit Capacity Fattor (Using MDC Net) 85.1 92.6 63A 22 Unit Capacity Factor (Using DER Not) 83.6 91.0_ 62 2.

23. Unit Forced Outege Rate _ 0.0 2.3 4.4 ,

24. Shutdown Scheduled Over Next 6 Months (Type. Date, and Duration of Each):

A r>lanned outaae of accroximatelv five davs is scheduled for Sootember to imolement a deslan channo to alleylate..the 0.81 MAPRAT restriction.

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

26. Untts in Test Status (Prior to Commercial Operation): Forecast Achieved INiilAL CRITICAUTY INITIAL ELECTRICITY COMMERCIAL OPERAllON

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4 AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 050-0298 UNIT CNS DATE September 4. 1992 TELEPHONE (402) 825-5487 HONTH Auaust 1992 E 4Y AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (HWe-Net) 1 434 __ 17 685 2 469 18 685 3 507 19 683 4 509 20 683 5 603 21 681 6 650 22 680 7 673 23 679 8 679 24 681 9 673 25 680 10 671 26 682 11 669 27 684 12 67J 28 685 13 675 29 685 14 681 30 682 15 683 31 685 16 _

683 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 Nuclear Station' ,

DATE September 4.1992 COMPLETED BY S. C. Wheeler ,

TELEPHONE (4021825-5770 - .'

REPORT MONTH Auoust 1992 Method Of Licensee Cause & Conective Shutting Event System' Componen'5 Actson to Duration 2

Down Reactor 3 Report Code Code Prevent Recunence No. Date Type l (Hours) Reason H N/A 92413 Reference LER 92413 92-4 7/31/92 F 0 __,

w Reason: 3 Method- 4 Exhbit G - Instrixtionsfor 1 F: Forced 2 .

1 - Manual Preparation of Data Entry S: Schedufed A- Equipment Failure (Emlain) 2- ManualScram Shetf 3 for Licensee Event B - Maintenance or Test 3- AutomaticScram Feport (LER) File (NUREGC161)

C- Refueling ..

D - Regulatory Restriction 4 - Continued E - OperatorTraining & License Emanunation 5 - Reduced Load 5 Exhibit !- Same Source F - Administrative - 6 - Other G - Operational Enor (Eglain) ti- Other (Explain) .

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OPERATIONS NARRATIVE COOPER NUCLEAR STATION AucusT 1992 REDUCED POWER OPERATION WAS EXPERIENCED FOR THE ENTIRE MONTH OF AUGUST. POWER WAS REDUCED JULY 30-31 DUE TO A DERATE BECAUSE OF A LOCA ANALYSIS ERROR. REFERENCE LER 92-013 FOR A DISCUSSION OF THE: ANALYSIS ERROR. A CAPACITY FACTOR OF 85.1% WAS ACHIEVED FCR THE MONTH.

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