ML20065J948

Monthly Operating Rept for Mar 1994 for Davis-Besse Nuclear Power Station

ML20065J948
Person / Time
Site:	Davis Besse
Issue date:	03/31/1994
From:	Koch S, Jeffery Wood TOLEDO EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
KB-94-0790, KB-94-790, NUDOCS 9404190082
Download: ML20065J948 (5)

Text

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TOL.EDO

,  % Ei[)lEiClfd EDISON PLAZA 3OO MADISON AVENUE TOLEDO. OHIO 40052-DG]1 1

April 14, 1994 KB-94-0790 Docket No. 50-346 License No. NPF-3 U.S. Nuclear Regulatory Commission Document Control Desk Vashington, D.C. 20555 Gentlemen:

Monthly Operating Report, March 1994 Davis-Besse Nuclear Power Station Unit 1 Enclosed are ten copies of the Monthly Operating Report for Davis-Besse Nuclear Power Station Unit No. 1 for the month of March 1994.

If you have any questions, please contact S. D. Koch at (419) 321-7791.

Very truly yours, J m K. Vood Plant Manager Davis-Besse Nuclear Power Station SDK/dmc Enclosures cc: Mr. J. B. Martin Region III Administrator Hr. S. Stasek NRC Senior Resident Inspector Hr. R. J. Stransky NRC Senior Project Manager d

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-0346 UNIT Davis-Besse Unit 1 '

DATE 04/01/94 COMPLETED BY STEVE KOCH -

TELEPHONE 419 -321 -7791 MONTH MARCH 1994 AVERAGE DAILY POWER LEVEL AVERAGE DAILY POWER LEVEL DAY- -(MWe-Net) DAY (MWe-Net) -

1 875 17 877 2 877 18 876 3- 876 19 877 4 876 20 877 5 876 21 874 6 874 22 873 7 876 23 871 8 877 24 871 9 876 25 871 10 ~ 878 26 877 11 876 27 876' 12 874 28 878 13- 857 29 876 14 874 30 875 15 874 31 874-16 877 4

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OPERATING DATA REPORT

• DOCKET NO 50-0346 DATE 04/01/94 COMPLETED BY STEVI:. XOCH TELEPHONE 419 - 321 - 7791 OPERATING STATUS

1. Unit Name: Davis-Bosso Unit 1 Notes

2. Roportin g Porlod..... ...... .. . ...... ........... ....... MARCH 1994

3. Lieonsed Thormal Power (MWt).. .. .... ... . ....... . .... . . 2772 4 Namoplate Rating (Gross MWo)... ... ... ....... . . ... ... ....... 925

5. Design Electrical Rating (Not MWo)........ ... . ... . .... .... 906

6. Maximum Dependablo Capacity (Gross MWo)..... ....... .. 913

7. Maximum Dependablo Capacity (Not MWo).... .. . . .. . 868

8. If Changes Occur in Capacity Ratings (Items number 3 through 7) sinco last report, give reasons:

=_

9. Power Lovel To Which Restricted, If Any (Not MWo):

10. Reasons For Rostrictions, if Any (Not MWo):

This Month Yr-to-Dato Cumulative

11. Hours in Reporting Period.... , . . . . . . . , . . 744.00 2,160 137,353

12. Number Of Hours Reactor Was Critical... .... . . . . 744.00 2,160 84,400

13. Roactor Roservo Shutdown Hours... . . . . . . . . . . . 0.00 0 5,532 ,

14. Hours Genorator On-Lino... . . . . . . . . . . . . . . . . 744.00 2,160 82,184

15. Unit Resorvo Shutdown Hours... .. . . . . . . 0.00 0 1,733

16. Gross Thermal Energy Generated (MWH).. .. .... . . . . 2,059,707 5,982,863 211,754,632

17. Gross Electrical Energy Generated (MWH)... . . .. . 684,210 1,989,948 68,329,969

18. Not Electrical Enorgy Gonorated (MWH).. ... . . . , 650,824 1,892,604 64,418,974

19. Unit Servico Factor. ... . ... .. . .. . .. .. .. .. . .. . . .. . .. . 100.00 100.00 59.83

20. Unit Availability Factor.. . ... . . . . . . . . . . . . . . . . . . . 100.00 100.00 61,10

21. Unit Capacity Factor (Using MDC Net)..... .... ,,, . . . . . 100.78 100.95 54.03

22. Unit Capacity Factor (Using DER Not).. .. ..... . .. .. .. . 96.55 96.71 51.77

23. Unit Forcod Outago Rato., ... .... . . ... . .. . . . . . . . . . . 0.00 0.00 20.89

24. Shutdowns Scheduled Over Noxt 6 Months (Typo, Date, and Duration of Each):

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

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

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION

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UNIT SHUTDOWNS AND POVER REDUCTIONS DOCKET NO.: 50-346 j . UNIT NAME: Davis-Besse #1' t DATE: March 5, 1994 Completed by:- S. D Koch Report Month March, 1994 Telephone: (419)321-7791 g o g4 Cause & Corrective b *

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• m curr ac-NO SIGN TICANT SHUTDOWNS OR POWER REDUCTIIIS F: Forced Reason: 4 Method: Exhibit G - Instructions for Preparation of Data 5: Scheduled A-Equipment Failure (Explain) 1-eml Entry Sheets for Licensee Event Report (IIR)

B-Maintenance or Test 2-Manual Scram File (Nt1 REG-Ol61)

C-Refueling 3-Automatic Scram IHtegulatory Restriction 4-<ontinuation f rom .

E-operator Training & License Examination Previous stonth Exhibit I - Same Source F-A<hinistrative 5-toad Reduction

• Report challenges to Power operated Rollef Valves G-operational Error (Explain) 9-other (Explain) (PORVs) and Pressuriser Code Safety valves (PCSVs)

B-other (Explain);

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OPERATIONAL

SUMMARY

March 1994 Reactor power was maintained at approximately 100 percent full power until 0000 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> on March 13, 1994, when a manuel power reduction to approximately 85 percent power was initiated to perform main turbine control valve testing, main turbine stop valve testing, and coupling repair of HD-381B, high pressure feed-vater heater 2-4 normal drain control valve. After completion of the main turbine control valve testing, main turbine stop valve testing, and HD-381B repair, reactor power was slowly increased to approximately 100 percent full power, which was achieved at 0730 hours0.00845 days <br />0.203 hours <br />0.00121 weeks <br />2.77765e-4 months <br /> on March 13, 1994. Reactor power was maintained at this power level until March 25, 1994.

At approximately 1030 hours0.0119 days <br />0.286 hours <br />0.0017 weeks <br />3.91915e-4 months <br /> on March 25, 1994, a manual power reduction to approximately 96 percent power was initiated to perform control rod drive breaker testing. After completion of the control rod drive breaker testing, reactor power was slowly increased to approximately 100 percent full power, which was achieved at 1500 hours0.0174 days <br />0.417 hours <br />0.00248 weeks <br />5.7075e-4 months <br /> on March 25, 1994. Reactor power was maintained at this power level for the rest of the month.

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