ML19242D263

Monthly Operating Rept for Jul 1979

ML19242D263
Person / Time
Site:	Cooper
Issue date:	08/03/1979
From:	Borer P NEBRASKA PUBLIC POWER DISTRICT
To:
Shared Package
ML19242D261	List: ML19242D260 ML19242D263
References
NUDOCS 7908140764
Download: ML19242D263 (4)

Text

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OPERATING DATA REPORT DOCKET NO. 050-0208 DATE A u r w,- 1, 1979 COMPLETED BY P. J.

Borer TELEPHONE an?-Ros-1811 OPERATING STATUS Notes

1. Unit Name:

Coooer h ie,r sene4nn

2. Reporting Period:

July 1979

3. Licensed Thermal Power (MWt):

2381 836

4. Nameplate Rating (Gross MWe):

778

5. Design Electrical Rating (Net MWe):

707

6. Maximum De ndable Capacity (Gross MWe):

7. Maximum Dependable Capacity (Net MWe):

8. If Changes Oces.r in Capacity Ratings (Items Number 3 Through 7) Since Last Report. Give Reasons:

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

"nna

10. Reasons For Restrictions. If Any:

None This Month Yr..to.Date Cumulative

11. Hours In Reporting Period 744.0 5.087.0 44.568. _

12 Number Of Hours Reactor Was Critical 744.0 4,313.6 37,768.5

13. Reactor Reserve Shutdown Hours 0.0 0.0 0.0

14. Hours Generator On.Line 744.0 4,246.7 37,049.9

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWH) 1.570.248.0 8.517.192.0 68.941.350.0

17. Gross Electrical Energy Generated (MWH) 506,626.0,_,

2.784.791.0 22.142.677.0

18. Net Electrical Energy Generated (MWH) 485,554.0 2,686,626.0 21,349,965.0

19. Unit Service Factor 100.0 83.5 83.1

20. Unit Availability Factor 100.0 83.5 83.1

21. Unit Capacity Factor (Using MDC Net) 85.4 69.1 62.7 6.1. 9 67.9 61.6

22. Unit Capacity Factor (Usmg DER Net)

23. Unit Forced Outage Rate 0.0 1.4 4.4

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

None

25. If Shut Down 3 t End Of Report Period. Estimated Date of Startup:

26. Units in Test S atus iPrior to Commercial Operation):

Forecast Achieved INITIA L CRITICALITY INITIA L ELECTRICITY COMMERCIA L OPER ATION

, sis

.Li

.) O V re-3 7008349 } {Q (

g f

P' AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.

050-0298 UNIT Cooper Nuclear Station DATE August 3, 1979 COMPLETED BY P. J. Borer 402-825-3811 TELEPHONE __

MONTH July 1979 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL IMWe-Net)

DDVe-Net) 578 685 g7 2

600 18 684 090 3

716 39 615 4

20 688 670 667 5

21 681 680 6

3 695 7

6S1 23 g

638 749 24 634 9

25 687 10 685 685 26 11 713 27 687 686 12 3

333 721 465 13

,9 14 678 30 584 632 675 15 3,

681 16 INSTRUCTIONS On this format, list the average daily unit power !evelin MWe Net for each day in the reporting month. Compute to the nearest whole mepwatt.

W/77)

,G

050-0298 DOCKET NO.

UNITSilU1 DOWNS AND POWER REDUCTIONS UNIT NAME Coopar Nncionr Station DATE Aucust 3.

1979 COMPLETED BY P. J.

Borer 7 1979 TELEPil0NE 402-825-3811 REPORT MONill

7. 1 jg

'h

)E Licensee

,E t, Cause & Corrective No.

Date g

gg d

jgy Event g

pU Action to gI 5

j 53 Repost a mu Psevent Recurrence H

g 6

79-8 790728 S

O 11 4

NA NA NA Reduced power to permit a rod se-quence change.

I 2

3 4

F: Forced Reason:

Method:

Exhibit G -Instruttions S: Schedided A-Equipment Failure (Explain) 1 -Manual for Preparation of Data ll-Maintenance of Test 2-Manual Scram.

Entry Sheets for Liecusee C-Refueling

3. Automatic Scram.

Event Repini (LER) File (NilRE G-D Regulatory Restriction 4-Other (Explain) 01611 E-Operator Training & Ikense Examination L

F Administrative 5

Exhibit I - Same Source

~

G Operational Erros (lixplain)

C. ' (9/77)

I' Dther (Explain)

4 COOPER NUCLEAR STATION OPERATIONS NARRATIVE July 1979 The unit operated continuously during the month of July. On July 2, a hydrogen combustion occurred in the Off Gas System. On July 9, the feeder breaker to the A0G System tripped. When returning the A0G System to service, a hydrogen combustion occurred in the Off Gas System. On July 23, another hydrogen combustion occurred in the Off Gas System.

As a result of the three events described above, the A0G train in ser-vice was shutdown on July 25.

It is believed that possible catalyst migration may have caused the events on July 2 and 23.

The A0G System was returned to service on July 29 in an effort to further investigate the problem and it has operated normally. The catalyst migration prob-le". in the A0G System will be investigated as soon as operating con-ditions permit.

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