ML20207D583

Monthly Operating Rept for Aug 1986

ML20207D583
Person / Time
Site:	Cooper
Issue date:	08/31/1986
From:	Horn G, Sutton K NEBRASKA PUBLIC POWER DISTRICT
To:	NRC
References
CNSS867731, NUDOCS 8612310092
Download: ML20207D583 (5)

Text

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OPERATING DATA REPORT DOCKET NO.

050-0298 DATE 9-9-86 COMPLETED BY K. E.

Sutton TELEPHONE. 402-825-3811 OPERATING STATUS C Per Nuclear Station Notes -

+'

1. Unit Name:

2. Reporting Period:

August, 1986 2381

3. Licensed Thermal Power (MWt):

4. Nameplate Rating (Gross MWe):

836 778

5. Design Electrical Rating (Net MWe):

6. Maximum Dependable Capacity (Gross MWe):

787 764

7. Maximum Dependable Capacity (Net MWe):

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):

10. Reasons For Restrictions,If Any:

This Month Yr to-Date Cumulatise

11. Hours In Reporting Period 744.0 5,831.0 106,680.0

12. Number Of Hours Reactor Was Critical 713.1 5,772.I 80,785.2

13. Reactar Reserve Shutdown Hours 0.0 0.0 0.0

14. Hours Generator On-Line 701.2 5,748.2 79,454.0

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWH) 1,380,425.0 11,374,995.0 156,237,661.0

17. Gross Electrical Energy Generated (MWH) 459,817.0,,

3,798,177.0 49,938,150.0

18. Net Electrical Energy Generated (MWH) 442,260.0 3,659,465.0 48,113,825.0

19. Unit Service Factor 94.2 98.6 74.5

20. Unit Availability Factor 94 2 98.6 74.5

21. Unit Capacity Factor (Using MDC Net) 77.8 82.1 59.0

22. Unit Capacity Factor (Using DER Net) 76.4 80.7 58.0

23. Uriit Forced Outage Rate 5.8 1.4 4.7

' 24. Shutdowns Scheduled Over Next 6 Months (Type. Date,ad Duration of Each1:

1986 Refueling and Maintenance Outage starting October 5, 1986 with an approximate duration of 10 weeks.

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

26. Units In Test Status (Prior to Commercial Operation):

Forecast Achieved INITI A L CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION Ld c24 8612310092 860831 1/

PDR ADOCK 05000298

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AVERAGE DAILY UNIT POWER LEVEL j

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DOCKET NO.

50-0298 UNIT CNS 9-9 DATE

_ COMPLETED BY K. E. Sutton TELEPllONE 402-825-3811 MONTH August, 1986 a

f DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(51We-Net) g 702

~ ~ ~ ~

511 17 2

656 18 625 3

603 ~ ~ ~ -

39

- - 576~

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4 712 670 20 700 5

21 071 6

697 22 671 695

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7

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S 652 24 606 9

602 25 674 10 601-26 660 11-697 27 675 683 12 23 658

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13 366 658 29 14 0

596 30 15 152 31 452 16 502 INSTRUCT!ONS On this format. fist the aserage daily unit power levelin MWe Net for each day in the reporting month. Compute to the nearest whole megawatt.

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DOCKET NO. 50-0298 UNIT SilUTDOWNS AND POWER REDUCTIONS CNS UNIT N AME DATE.9-9-86 COMPLETED By K. E. Sutton REPORT MONTil August, 1986 402-825-381I TELEPHONE w.

E c

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Cause & Corrective Licensec E*

Action to No.

Date g

gg g-jg5 Event gg gu Prevent Recurrence H

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Report #

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6 While removing a faulty HFA relay of 86-05 860813 F

42.8 G

3 Channel A, Reactor Protection System (RPS), electrical noise induced a Channel B trip completing the 1 out of 2 taken twice logic of RPS and scram-ming the reactor.

The relay replacement procedure is being revised for this application.

• No t available a the t ime of this report.

I 2

3 4

F: Fi reed Reason:

Method:

Exhibit G Instructions S: Scheduled A. Equipment Failure (Explain)

1. Manual fo(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 & Licen<c Examination F. Administrative

-5 G-Operational Error (Explain)

Exhibit I Same Source (9/77)

Il-Other (Explain) s

y-Operations Narrative Cooper Nuclear Station August 1986 The plant operated the month of August with no scheduled shutdowns, one (1) unscheduled shutdown on August 13, and no other unscheduled power changes.

On August 13, 1986, at-1318 hours, a reactor scram occurred during the performance of a procedure to replace a faulty HEA coil relay of.the Channel A Reactor Protection System (RPS). While removing the relay, the relay coil was cycled producing electrical noise which caused a trip on RPS Channel B.

As a result the plant scrammed. On August 14, procedures were implemented to bring the plant back into service. The plant was placed on-line August 15, at 0806 hours0.00933 days <br />0.224 hours <br />0.00133 weeks <br />3.06683e-4 months <br />.

A capacity factor of 77.8% was achieved for the month of August.

7 M Nebraska Public Power District COOPER NUCLEAR STATION

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CNSS867731 September 9, 1986 Director, Office of Management Information and Program Control U.S. Nuclear Regulatory Commission Washington, D.C.

20555

Subject:

Monthly Operation Status Report for August, 1986 Docket No. 50-298 Gentlemen:

Enclosed for your information and use is the Cooper Nuclear Station Monthly Operating Status Report for August, 1986. 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, n

Di ion Manager of Nuclear Operations j

GRH:drf j

Enclosure i

cc:

G. D. Watson w/ enc.

A. C. Gehr w/ enc.

i R. D. Martin w/ enc.

tI

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