ML20071L942

Monthly Operating Rept for Jul 1982

ML20071L942
Person / Time
Site:	Cooper
Issue date:	08/03/1982
From:	Ballinger P NEBRASKA PUBLIC POWER DISTRICT
To:
Shared Package
ML20071L935	List: ML20071L932 ML20071L942
References
NUDOCS 8209240181
Download: ML20071L942 (4)

Text

OPERATING DATA REPORT DOCKET NO.

050-298 DATE August 3, 1982 COMPLETED BY P. Ballinger TELEPHONE 402-825-3811 OPERATING STATUS Notes

1. Unit Name:

Cooper Nuclear Station July 1982

2. Reporting Period:

2381

3. Licensed Thermal Power (MWt):

836

4. Nameplate Rating (Grom MWe):

770

5. Design Electrical Rating (Net MWe):

787

6. Maximum Dependable Capacity (Gross MWe):

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 Cumulative 744.0 5,087.0 70,872.0

11. Hours In Reporting Period

12. Number Of Hours Reactor Was Critical 565.6 3.884.1 57.770.5 0.0 0.0 O.0 I

13. Reactor Reserve Shutdown Hours 540.0 3,849.3 56,806.8

14. Hours Generator On.Line

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWH) 1,088,184.0 8,365,176.0 112,053,654.0

17. Gross Electrical Energy Generated (MWH) 352,797.0_,

2,777,284.0 35,258,071.0

18. Net Electrical Energy Generated (MWH) 340.285.0 2.689.492.0 33.986,870.0 l

19. Unit Service Factor 72.6 75.7 80.2 l

20. Unit Availability Factor 72.6 75.7 80.2 l

21. Unit Capacity Factor (Using MDC Net) 59.9 69.2 62.8 58.8 68.0 61.6 l

22. Unit Capacity Factor (Using DER Net) 6.0 2.5 3.9

23. Unit Forced Outage Rate

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

l

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

I

26. Units In Test Status IPrior o Commercial Operation):

Forecast Achiesed INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION l

8209240181 820003 hDRADOCK 05000298 I

("IT71 PDR

c.

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 050-298 UNIT Cooper Nuclear Station DATE August 3, 1982 e

COMPLETED BY P. Ballincer TELEPHONE 402-825-3811 MONTH Julv DAY AVERAGE DAILY POWER LEVEL DAY AVER AGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 0 1

17 620 525 2

0 gg 3

0 691 39 4

0 20 735 0

745 5

21 0

748 6

22 0

.7 23 767 8

181 744 24 727 9

M1 25 757 10 405 26 755 11 542 27 628 12 23 756 667 752 i

13 29 58 724 l

14 30 752 IS 106 33 16 524 INSTRUCTIONS On this for:nat list the average daily unit power levelin MWe-Net for each dayin the reporting month. Compute to the nearest whole megawatt.

(9/77)

s 050-298 DOCKET NO.

UNIT SilU1 DOWNS AND' POWER REDUCTIONS UNIT N AME Cooper % clonr Station DATE Aucust 3. 19 R ')

COMPLETED BY P. Ballinger REPORT MONTil July TEl.EPilONE 402-825-3811 e.

c

, t, f'.

Cause & Corrective ig 3

4Y3 Licensee

~

E E

Action to No.

D3te i

38 5

_E s 5 Event

~g gu g=

5 j ;g g Report e mO Prevent Recurrence H

g 6

82-5 820521 S

169.3 C

2 NA NA NA 1982 Refueling and Maintenance Outage 82-6 820714 F

34.7 A

2 NA NA NA A feedwater heater level control valve failed close (stem snapped) causing in-stabilities in feedwater heater sys-tem.

The reactor was shutdown to re-pair valve and investigate cause of failure. Two seismic supports were found damaged and were also repaired.

l n

I 2

3 4

F: Forced Reaso..

Method:

Exhibit G Instructions S: Schedided

• Equipment Failure (Explain) 1-Manual for Preparation of Data 11 Maintenance of Test 2 Manual Scram-Entry Sheets for 1.icensee C. Refueling 3-Automatic Scram.

Event ReporI(LER) File (NtIRI G-D Regulatory Restriction 4 Other (Explain) 01611 E-Operator Training & License Examination F-Administrative 5

Exhibit 1 Same Source G Operational Error (Explain) p)/T?)

Il-Ot her (Explain) v

OPERATIONS NARRATIVE Cooper Nuclear Station July 1982 The 1982 Refueling and Maintenance Outage ended on July 8 with synchron-ization of the. generator to the grid. Minor delays with torus work extended the outage beyond the scheduled startup date.

The reactor was taken critical on July 7, 1982 at 0705 hours0.00816 days <br />0.196 hours <br />0.00117 weeks <br />2.682525e-4 months <br /> to begin Cycle 8 operation. The generator was synchronized to the grid at 0121 hours0.0014 days <br />0.0336 hours <br />2.000661e-4 weeks <br />4.60405e-5 months <br />, July 8, 1982.

On July 14, 1982 at 0332 hours0.00384 days <br />0.0922 hours <br />5.489418e-4 weeks <br />1.26326e-4 months <br />, the reactor was shutdown to repair a broken feedwater heater level control valve and to investigate insta-bilities in the feedwater heating system. The valve was repaired along with two seismic supports damaged by the flow instabilities. The plant was returned to operation the next day.

L i

i

.. -. -