ML20207E229

Monthly Operating Rept for Jul 1988 for Cooper Nuclear Station

ML20207E229
Person / Time
Site:	Cooper
Issue date:	07/31/1988
From:	Horn G, Scheuerman J NEBRASKA PUBLIC POWER DISTRICT
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
CNSS888173, NUDOCS 8808170185
Download: ML20207E229 (5)

Text

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OPERATING DATA REPORT i

DOCKET NO.

050-0298 DATE OR-10-RR COMPLETED BY T m c+auerman TELEPHONE t 402) 825-3811 OPERATING STATUS Notes'

1. Unit Name: Coooer Nucionr Sution

2. Reporting Period:

July, 1988 1

2381

3. Licensed Thermal Power (MWt):

836

4. Nameplate Rating (Gross MWe):

778

5. Design Electrical Rating (Net MWe):

i 787 l

6. Maximum Dependable Capacity (Gross MWe,.

764

7. Maximum Dependable Capacity (Net MWe):

l

8. If Changes Occur in Capacity Ratings (!tems Number 3 Through 7) Since Last Report.Give Reasons:

l l

l

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

10. Reasons For Restrictions.lf Any:

'This Month Yr..to.Date Cumulative 744.O s.111.0 123,480.0

11. Hours In Reporting Period

12. Number Of Hours Reactor Was Critical 715.7 2,344.4 92,351.8

13. Reactor Reserve Shutdown Hours 0.0

0. 0 _

0.0

14. Hours Generator On Line 703.4 2,279.5 90,323.9 0.0 0.0,,

0.0

15. Unit Reserve Shutdown Hours

16. Gross Thermal Energy Generated (MWH) 1,569,408.0 4,709,040.0 179,339,747.5

17. Gross Electrical Energy Ge'nerated (MWH) 511,452.0,,,

1,542,966.0 57,602,047.0

18. Net Electrical Energy Generated (MWH) 498,861.0 1,494,998.0_

55,523,662.0 94.5 44.6 _

71

19. Unit Senice Factor

20. Unit Availability Factor 94 5 44.6 73.6 87.8 33.3 58.9

21. Unit Capacity Factor (Using MDC Net) 86.2 37.6 57.8

22. Unit Capacity Factor (Using DER Net)

23. Unit Forced Outage Rate 5.5 11.6 4.0

24. Shutdowns Scheduled.Over Next 6 Months (Type. Date,and Duration of Eacht:

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

26. Units in Test Status (Prior to Commercial Operationl:

Forecast Ach:<ved INITIAL CRITICALITY INITIA L ELECTRICITY COM51ERCI AL OPER ATION 8808170185 880731 DR ADOCK 05000298 (9/77 :

PDC

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.

050-0298 UNIT CNS DATE 08-10-88 COMPLETED BY J. T.

Scheuerma, TELEPHONE (402) E25-3811 MONT11 July, 1988 DAY AVERAGE DAILY POWER LEVEL DAY AVER AGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 727 17 279' 727

_2 18 634 3

646 19 640 4

766 20 753 5

753 21 757 6

747 22

'M 8

.7 743 23 759 8

741 24 668

~9 739 25 692 10 677 26 712 11 7sn 27 720 12 753 28 733 13 699 f

29 741 14 708 30 738 15 310 33 707 16 0

INSTRUCTIONS On this format, list the average daily unit power levelin MWe Net for each day in the reporting month. Compute to the nearest whole megawatt.

(9/77) 4

/9

• I.

2

UNITS!!UTDOWNS ANI) POWElt REI)UCilONS DUCKliT NU. 050-0298 UNIT NA. lE CNS

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Scheuer g -

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'IELErilONI! (402) 825-3R11

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,E r, j'a Cause & Cmrective o

No.

Date g

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j g5 Event 3,7 gu'8 Actiini in

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35g Itepurgsr mo Psevent Itcentrence H

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Q 88-05 880715 F

40.6 H

1 88-019 EL IPBU Reactor manually scrammed due to indication of electrical fire on "A" Phase Isolated Phase Bus Duct.

Degraded duct cover gaskets and a broken grounding strap were replaced.

I 2

3-4 F: Funced Ite:: son:

hiethod:

lixhibit G -Instructinas 5: Schedaded A-Eiguipment Failure (Explain) 1 h!anual

- for Pseparation of Data

!!-Alaintenance uiTest 2 h!anualScram.

linair Sheets fin 1.ieensee C-!<cfueling 3 Automatic Sesam.

livent Itepost (i.Elt) 1 ile INtliti:G.

D Itegulatory llestriction 1 Other (Explain) 0161) li Operator Training & Ucense Examinalism 8

F Administrative S

G. Operational Etrur (Explain)

Exhibit I-Same Source 08/77).

Il-Other (Explain)

s OPERATIONS NARRATIVE Cooper Nuclear Station July, 1988 i

At 0958 on Jaly 15, 1988, the reactor was manually scrammed due to the indication of an electrical fire on the Isolate Phase Bus Dust Cooling System.

Arcing was observed at a bolted connection between the removable covers on the "A" Phase Isolated Phase Bus Duct.

The plant was returned to service at 0235 on July 17, 1988.

No other scheduled or unscheduled shutdown, or unscheduled power reductions were experienced during the month of July.

A capacity f actor of 87.8% was achieved for the month.

e e COOPER NUCLEAR ST ATION Nebraska Public Power District

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3

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w CNSS888173 August 10, 1988 Document Control Desk U.S. Nuclear Regulatory Commission Washington, D.C.

20555

Subject:

Monthly Operation Status Report for July, 1988 Docket No. 50-298 I

Gentlemen.

I Enclosed for your information and use is the Cooper Nuclear Station Monthly Operating Status Report for July, 1988. 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.

Sin rely,

/w

. ()K. orn DivTsion Manager of Nuclear Operations GRH/JTS:nd Enclosure cc:

G. D. Watson w/ene.

R. D. Martin w/ enc.

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