ML19259A785

Monthly Operating Rept for Dec 1978

ML19259A785
Person / Time
Site:	Cooper
Issue date:	12/31/1978
From:	Bores R NEBRASKA PUBLIC POWER DISTRICT
To:
Shared Package
ML19259A782	List: ML19259A781 ML19259A785
References
NUDOCS 7901100297
Download: ML19259A785 (4)

Text

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OPERATING DATA REPORT DOCKET NO. 050-0298 DATE 1-5-79 CONIPLETED BY P.T. Borer TELEPHONE An?_Ros_qgli OPERATING STATUS rnnnar h 1n'r 4,H nn

1. Unit Name:

2. Reporting Period: Decerbor 1973

3. Licensed Thermal Power (SIWt): 2381

4. Nameplate Reimg (Gross MWe): 836

5. Design Electrical Rating (Net MWe):

778 787

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): None

10. Reasons For Restrictions. If Any: None This Month Yr.-to.Date Cumulative

11. Hours In Reporting Period 744 8760 39.481

12. Number Of Hours Reactor Was Critical 744 7999.2 33,454.9 0 0 >

0

13. Reactor Reserve Shutdown Hours

14. Hours Generator On.Line 744 7967.4 32,803.5

15. Unit Reserve Shutdown Hours _

0 0 0

16. Gross Thermal Energy Generated (MWH) 1.615.296 15.382.656 60.424.158 537,860 5,045,916 19,357,866

17. Gross Electrical Energy Generated (MWH) _

18. Net Electrical Energy Generated (MWH) 591 ^5' ^ AAA An' 'a ^^' -

19. Unit Senice Factor 100.0 91 .0 83.1

20. Unit Availability Factor 100.0 91.0 83.1

21. Unit Capacity Factor (Using MDC Net) 91.7 73.0 61.9

22. Unit Capacity Factor (Using DER Net) 90.1 71.7 60.8 0.0 0.3 ~4. 8

23. Unit Forced Outage Rate

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

Refueline. Anril 1. 1979. 4 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 INITIA L CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION 790110 Wi7 (4 /7 )

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 050-0298 UNIT Cooper Nuclear Station DATE Januarv 5. 1979 COMPLETED BY P. J. Borer TELEPilONE 402-825-3811 MONT11 December 1978 DAY AVERAGE D AILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL IMWe-Net) (MWe-Net) 1 687 l7 674 2

516 g 719 3 639 19 721 4 737 20 721 5 751 21 721 6 719 22 720 7

724 23 719 g 744 24 638 9 720 25 590 10 --

720 26 _. 726 Ii 674 27 752 12 762 23 723 13 736 29 7 '> n 34 728 30 718 15 722 33 638 16 721 INSTRUCTIONS On this format. list the average daily unit power level in MWe Net for each day in the reportmg month. Compute to the nearest whole megawatt.

(4/77)

DOCKET NO. 050-0298 UNIT SIIUTDOWNS AND POWER REDUC 110NS UNIT N AME Cooper Nuclear Station DATE January 5. 1979 COMPLETED HY P. J. Borer REPORT MON 111 December 1ELEPilONE 402-825-3811 e.

- E E jg 3 I icensee g-t, g"3

. Cause & Corrective No. Da te g 3g @ }2 y$l$ Fvent 37 gO Action to 5 Prevent Recurrence H

f 35

< g, a port e in V o u

Q 78-16 781202 S 0 H 4 N/A N/A N/A Reduced power for control rod adjust-ment and stop valve testing.

I 2 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 (LI:R) File (NURI G-D-Regulatory Restriction 4-01her (Explain) 01611 E-Operator Training & License Examination 5

F-Administrative G-Operational Error (Explain) Exhibit I - Same Source 19/77) Il-Ot her (E xplain)

. - COOPER NUCLEAR STATION OPERATIONS NARRATIVE December 1978 The unit operated at an average net outrit of about /00 MWe, Power was reduced on December 2nd for a rod adjustment and main turbine stop valve testing. The unit availability factor for 1978 was 91.0%, raising the cumulative availability to 83.1%.

D GENERAL OFF lCE

" " ^ " ' '

\=_._ Nebraska Public Power District

" n" ACRO"o#010^2

==========-------------==n=--==xw January 5, 1979 Director, Nuclear Reactor Regulation Attention: Mr. Thomas A. Ippolito, Chief Operating Reactors Branch No. 3 Division of Operating Reactors U.S. Nuclear Regulatory Commission Washington, DC 20555

Subject:

Suppression Pool Temperature Transients Cooper Nuclear Station NRC Docket No. 50-298, DPR-46

Dear Mr. Ippolito:

The Nuclear Regulatory Commission's letter of December 13, 1977 requested information related to Suppression Pool Temperature Transients at Cooper Nuclear Station. The District's recponse

~

to this request, dated August 7, 1978, contained a commitment to supply the results of a Plant Unique Analysis of specific parameters as a function of time for certain depressurization transients by December 1978. It has come to our attention that the results of this analysis, being performed by General Electric, will not be available until approximately March 15, 1979.

If you have any questions, please do not hesitate to contact me.

Very truly yours, M

. Pilant Director of Licensing and Quality Assurance JDW/cmk

.hL 79011001'lO f