ML20079M937

Monthly Operating Rept for Dec 1983

ML20079M937
Person / Time
Site:	Cooper
Issue date:	12/31/1983
From:	Ballinger P, Thomason P NEBRASKA PUBLIC POWER DISTRICT
To:	NRC
References
CNSS840006, NUDOCS 8401270475
Download: ML20079M937 (5)

Text

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.o 9

OPERATING DATA REPORT 050-298 DOCKET NO.

DATE l-5-84 COMPLETED BY P. L. Ballinger TELEPHONE 402-825-3811 OPERATING STATUS Cooper Nuclear Station Notes

1. Unit Name:

2. Reporting Period: December, 1983 2381

3. Licensed Thermal Power (MWt):

4. Nameplate Rating (Gross MWe): 336

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 Numb.r 3 Through 7) Since Last Report. Give Reasons:

9. Power Level To Which Restricted,If Any (Net MWe):

10. Reasons For Restrictions.If Any:

This Month Yr to.Date Cumulative I1. Hours in Reporting Period 744.0 8.760.0 83,305.0

12. Number Of Hours Reactor Was Critical 695.6 5,632.I 67,003.0

13. Reactor Reserve Shutdown Hours 0.0 0.0 0.0

14. Hours Generator On.Line 682.1 5.546.3 65,918.3

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWH) 999,072.0 10,451,856.0 130,513,158.0

17. Gross Electrical Energy Generated (MWH) - 331,952.0_, 3,474,127.0 41,406,355.0

18. Net Electrical Energy Generated (MWH) 315,848.0 3,343,199.0 39,916,659.0

19. Unit Service Factor 91.7 63.3 79.I

20. Unit Availability Factor 91.7 63.3 19.1

21. Unit Capacity Factor (Using MDC Net) 55.6 50.0 62.7

22. Unit Capacity Factor (Using DER Net) 54.6 49.1 6i.6

23. Unit Forced Outage Rate 8.3 3.1 3.8

' 24. Shutdowns Scheduled Over Next 6 Months (Type. Date,and Duration of Each e Maintenance Outane, 10 days, April I, 1984

25. If Shut Down At End Of Report Period. Estimated Date of Startup:

26. Units in Test Status (Prior to Commercial Operation): Forecast Achieved h J

INITIAL CRITICALITY INITIAL ELECTRICITY ,_

COMMERCIAL OPERATION 840127C475 831231 PDR ADOCK 05000298 -

R PDR g,

p # ,

e AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 050-298 UNIT ' Cooper Nuclear Station

. DATE 1-5-84 COMPLETED BY P. L. Ballinger TELEPHONE 402-825-3811 MONTH December DAY- AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-NetI (MWe-Net) 1 486 37 484 2 486 gg 395 484 520 3 j9 4 344 20 648 5 489 21 621 484 643 6

7 485 - 23 448 8 487 24 0

9 487 0 25 10 485 26 88

401 27 105 12 488 23 124 13 486 29 427 34 486 30 604 IS 495 3, 577 16 486 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.

(9/77)

='i 050-298  :

DOCKET NO.

UNITSHUTDOWNS AND' POWER REDUC 110NS UNIT N AME Cooner Nucionr Station l DATE l-5-.84 COMPLETED BY P. L. Ballincer REPORT MONTil December 1983 TELEPHONE 402-825-3811 5"

c <i 5 en : E*, Cause & Corrective

. .2 e E - Licensee c.

g

• 2 .s ~5;; Event ~? Action to No- Date j$ Report a p,

mo h3 U Prevent Recurrence o0 a: 3 Di j g c5 0.0 4 NA NA NA Reduced load per load schedule and 83-10 831204 S 11 and Icad demand 831223 61.9 A 3 NA NA NA Normal station service transformer ,

83-11 F destroyed by fire. Reactor scrammed from ge'nerator trip. Plant returned to operation using startup transforme! .

Damage transformer to be replaced during Spring Outage.

i I 2 1 3 4 F: Forced Reason: Method: Exhibit G Instructions S: Scheduled A Equipment Failure (Explain) 1-Manual for, Preparation of Data B Maintenance of Test 2 Manual Scram- Entry Sheets for Licensee C-Refueling 3 Automatic Scram. Event Report (LER) File (NUREG-D-Regulatory Restriction 4-Other (Explain) 0161)

E-Operator Training & License Examination F-Administrative 5 G Operational Error (Explain) - Exhibit I Same Source (9/77) Il Other(Explain)

.: e

.j i OPERATIONS NARRATIVE Cooper Nuclear Station December, 1983

-Th'e-plant operated most of the month at reduced loads.per the load schedule and the extended Cycle 9 operating strategy. -A weekend load reduction was made on December 4, 1983, per the load schedule and load demand. On December

'23, 1983.. a reactor scram occurred caused by a fire in the normal station

= transformer. ' The reactor was placed in cold shutdown and the transformer fire was extinguished. No personnel injuries or radiological releases occurred.

. The plant was' returned to operation in three days. The destroyed transformer will.be replaced during a short Spring maintenance outage. Cause of the fire

'is still under investigation.

1

W COOPER NUCLEAR STA1 X)N Nebraska Public Power District "'"A"c" J"N?t'@ ns""^T^ "

CNSS840006 January 5, 1984 Director, Office of Management Information and Program Control U.S. Nuclear Regulatory Commission Washington, D.C. 20555

Subject:

Monthly Operation Status Report for December 1983 Docket No. 50-298 Gentlemen:

Enclosed for your information and use is the Cooper Nuclear Station Monthly Operating Status Report for December 1983. 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, ff P. V. Thomason Division Manager of Nuclear Operations PVT:lb Enclosure cc: G. D. Watson w/ enc.

A. C. Gehr w/ enc.

J. T. Collins w/ enc.

8'Ac