ML20084U301

Monthly Operating Rept for Mar 1991 for Davis Besse Nuclear Power Station

ML20084U301
Person / Time
Site:	Davis Besse
Issue date:	03/31/1991
From:	Sarsour B, Storz L TOLEDO EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
KB91-0257, KB91-257, NUDOCS 9104170008
Download: ML20084U301 (6)

Text

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ECgf TOLEDO ha EDISON A Centeq (nergy r:rmpew EDISON PLAZA L MAD! SON AVE NUE TOL E 00. OHIO 43052-00(n April 10, 1991 KB91-0257 Docket No. 50-346 License No. NPP-3 Document Control Desk U. S. Nuclear Regulatory Commission 7920 Norfolk Avenue Bethesda, MD 20555 Gentlement Monthly Operating Report, March, 1991 Davis-Besse Nuclear Power Station Unit 1 Enclosed are ten copies of the Monthly Operating Report for Davis-besso Nuclear Power Station Unit No. 1 for the month of March, 1991.

If you have any question:, please contact Bilal Sarsour at (419) 321-7384 Very truly yours, Y

• Louis F. Storz g' Plant Manager Davis-Besse Nuclear Pover Station BHS/ tid Enclosures ect Mr. Paul Byron NRC Resident Inspector Mr. A. Bert Davis Regional Administrator, Region III Hr. H. D. Lynch NRC Senior Project Manager l

9104170008 910331 F;DR ADOCK 05000346 ey bj _

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AVERAGE DAILY UNIT POWER LEVEL l l

d DOCKET NO. 50-346 UNIT Davis-Besse #1 DATE April 10, 1991 COMPLETED IlY Bilal Sarsour TELEPil0NE (419)321-7384 MONTH March. 1991 DAY AVERAGE DAILY POWER LEVEL DAY AVER AGE DAILY POWER LEVEL IMhe-Neti ntwe.Nei; I 884 37 885 2 879 883 lb 3 884 882 i9 4

885 885 882 878 5  ::

6 883 879 33 7 23 g 886 880 9 883 25 881 10 874 882 2

11 887  : 877 12 882 7g 884 33 884 884 9 _

j4 883 885 15 886 3 652 16 883 l

INSTRUCTIONS On this format.hst the average daily umt power ie.elin Mw;. Net for each day in the reporting month. Compute io the nearest whole megawan to r77 i

g,._ _. ___-__.__.m.- . . . - __ _ . _ _ _ -

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.g 4 OPERATING DATA REPORT DOCKET NO. sn-146 DATE April 10. 1991 COMPLETf:D liY Bilal Snraour TELEPil0NE 1619 W 1-7384 OPERATING ST ATUS '  ;

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.l. Unit Name: Davis-Besso #1 Notes j

2. Reporting Period: March. 1991 I

3. Licenwd Thermal Power (MWt): 2772-

4. Nameplate Rating (Gross MWel: 925

5. Design Electrical Rating (Net MWe): 906 6: Maximum Dependable Capacity (Gross MWe): -.918

7. Maximum Dependable Capacity (Net MWe): 874 h, if Changes Occur in Capacity Ratings (items Number 3 Through 7)Since Last Report, Gise Reasone i

9. Power Lesel To which Restricted <lf Any (Net MWe):

10.' Reasons For Restrictions,if Any:

This Month Yr..to Date Cumulatise

11. Hours in Reporting Perloo 744.0- 2,160.0 111.049 1

- 12. Number Of Hours Reseter was Critical 744.0- 2,160.0 61,281.2-

.13.L Reactor Resene Shutdown Hours 0.0 0. 0 ' 5,393.7_

14. Hours Generator on-Line 744.0 -2.160 0~ 59.229.3 15/ Unit Resene Shutdown Hourt 0.0 0.0 _-  !.732.5

" 2,042,410 16 Gross Thermal Energy Generated (MWH)

. 5,959,578 144,086,063 .

17( Gross Electrical Energy Generated (MWH) 684d89 _ 1,995,168 -47,725,185=

.18. Met Electrical Energy Generated (MWH) 651 005- _ l ', 89 8_ ,4 2 0 = 44,847,048 - 1 ul9iUnit Senice Factor; 100.0- 1100.0= 53.3-

20. -Unit Asailability. Factor : 100.0 . 100.0 54.9' 21J Unit Capacity Factor (Using MDC Net') 100,1 -100,6- -46.2 220. Unit Capacity Factor (Using DER Net) 96.6- 97.0 44.6-3 23. Unit Forced Outage Rate 0.0 0 .- 0 26.6 i

24. Shutdowns Scheduled Oser Next 6 Months (T)pe, Date,and Duration of Each):

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

, J 26? Units in Test Status (Prior to Commercial Operation): Forecast - Achiesed INITIAL CRITICA LITY o lNITI A L ELECTRICITY .

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Operational Summary March; 1991 Reactor-powerLvas-maintained at approximately 100% full power until 0100 hour0.00116 days <br />0.0278 hours <br />1.653439e-4 weeks <br />3.805e-5 months <br />s-on March 10,r1991, when a manual power reduction to approximately 92% vas

' initiated to perform control rod drive exercise testing and main turLine control valve testing.

if ter completion of turbine valve testing,-reactor power was elowly increased to 100% power, which was achieved at 0400 hours0.00463 days <br />0.111 hours <br />6.613757e-4 weeks <br />1.522e-4 months <br /> on March 10, 1991.

Reactor'pover was maintained at.approximately 100% power until 0825 hours0.00955 days <br />0.229 hours <br />0.00136 weeks <br />3.139125e-4 months <br /> on March 31, 1991,- when a planned power reduction to approximately 50% vas

initiated to perform the following activities:

a)- Locate and plug main condenser tube leak (s), '

b)- Clean main condenser water boxes.

c) Replace upper. bearing to #1 main'feedpump turbine (MFPT) oil pump.

.d) Replace gland studs to #1 condensate pump.

e) 1 Replace cooling vater line for Circulating Water Pump.1-2.

f) Inspect thrust bearing on Circulating Vater Pemp 1-2.

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REFUELING INFORMATION Date March 1991

1. Name of facility: Davis-Besse Unit 1 2.. Scheduled date for next refueling outage? September 1991

3. The number of fuel assemblies (a) in the core and (b) in the spent fuel. storage pool, and (c) the new fuel storage areas.

(a) 177 (b) 328 (c) 0

4. The present' licensed spent fuel pool storage capacity and the size of any-increase in licensed storage capacity that has been requested or is planned, in-number of fuel assemblies.

Present: 735 Increased size by: approximately 900 by 1994 is under reviev

5. The projected date of the last refueling that can be discharged to the spent fuel pool assuming the present licensed capacity.

Date. 1996 - assuming ability to unload the entire core into the spent fuel pool is maintained-l-

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