ML19256F251

Monthly Operating Rept for Nov 1979

ML19256F251
Person / Time
Site:	Beaver Valley
Issue date:	12/06/1979
From:	Spitznogle A DUQUESNE LIGHT CO.
To:
Shared Package
ML19256F246	List: ML19256F245 ML19256F251
References
NUDOCS 7912180368
Download: ML19256F251 (4)

Text

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OPERATING DATA REPORT DOCKET NO. 50-334 DATE 12/6/79 COMPLETED BY _A. Spitz _n, ogle TELEPHONE. 412-643-5308 OPERATING STATUS

1. Unit Name:. Beaver Valley Power Station, Unit #1 Notes

2. Reporting Period: November. 1979

3. Licensed Thenna! Power (MWt): NO

4. Nameplate Rating (Gross MWe): 923

5. Design Electrical Rating (Net MWe): 852

6. Maximum Dependable Capacity (Gross MWe): 845

7. Maximum Dependable Capacity (Net MWe): 817

8. If Changes Occurin 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: N/A This Month Yr to.Date ' Cumulative i1. Hours In Reporting Period 720 8,016- 31.416

12. Number Of Hours Reactor Was Critical 703.15 3,578.64 13,744.71

13. Reactor Reserve Shutdown Hours 0 0 4,482.8-

14. Hours Generator On-Line 696.57 3,500.90 13,105.07

15. Unit Reserve Shutdown Hours 0 0 0

16. Cross Thermal Energy Generated (MWH) 692.354.13 6.105,858.38 26,974,253.33 I"'. Gross Electrical Energy Generated (MWH) 213,800 _ _1,939,200 8,277,940

18. Net Electrical Energy Generated (MWH) 188,996 1,748,345 7,570,743

19. Unit Service Factor 96.7 43.7 46.0

20. Unit Availability Factor 96.7 43.7 46.0

21. Unit Capacity Factor (Using MDC Net) 32.1 26.7 35.7

22. Unit Capacity Factor (Using DER Net) 30.8 25.6 34.2

23. Unit Forced Outage Rate 32.5 56.4 46.4

24. Shutdowns Scheduled Over Next 6 Months (Type.Date ar;f Duratien of Eacht:

December,1979 - Major Modification And Refueling Outage (approximately six months scheduled duration)

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

26. Units In Test Status (Prior to Commercial Operation): Forecast Achieved INITIAL CRITICALITY N/A N/A INITIAL ELECTRICITY N/A N/A COMMERCIA L OPERATION N/A N/A 1608 071 (9/77) 7912180 ggg

AVERAGE DAILi UNIT POWER LEVEL DOCKET NO. 50-334 UNIT BVPS Unit #1 DATE 12/6/79 COMPLETED BY A. Spitznogle TELEPHONE 412-643-5308 MONTH November, 1979 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 3 249 299 37 2 261 13 295 3 273 39 295 4 282 303 20 .

5 277 21 295 6 277 245 22 7 281 237 23 8 290 241 24 9 277 245 25 10 .256 237 26 I f. 0 245 27 12 295 249 28 13 287 268 29 14 303 245 30 15 -

303 3, 16 307 INSTRUCTIONS On this format. list the avenge daily unit power lesel in MWe Net for each day in the reporting month. Compute to the nearest whole megswatt.

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UNIT NAME BVPS Unit #1 DATE 12/6/79 REPORT MONTil November, 1979 COMPLETED BY A. E. Spi'cznogle TELEPIIONE 412-643-5308

_ E E No. DJ'e

.! E 3 yY} Licensee h Cause & Coereclise i 5? 4 ,z 3 cc Event p  %~E 9 Action to 6-jE $ 3 ;y3 =

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16 791110 F 21.12 A 1 Cil PIPEXX Reactor manually shutdown to repair steam leak on feedwater piping.

Repaired leak and returned unit to service.

17 791111 F 2.31 A 3 Cil INSTRU During power ascension (approximately 25% full power), experienced problems with steam generator level. Tripped ,

unit on Lo-Lo steam generator level.

Controls checked and unit returned to service.

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CD 1 2 3 4 o F: F.n ted Reason: Method: Exhibit G. instructions N S: Schedu!cd A Eiguipment Failure (Explain) 1 Manual foi Pseparation of Daia u D Maintenance ei Test 2 Manual Scram. Entr> Sheels for Licensee C Refueling 3 Automatic Scram. Eveni Repo a (LERI File tNUREG D.Regulaios) Restriction 4 Other (Explain) 01611 1: Operaio Training & License Examination F Administrative 5 G-Operational Estos iExplain t E shibis 1 - Same'Somce (9/77) li-Other (Esplain)

DUQUESNE LIGHT COMPANY Beaver Valley Power Station Narrative Summary Of Operating Experience - November,1979 Date Event November 1 to Station in Operational Mode 1 at nominal 35% reactor power.

November 6 November 7 to Station in Operational Mode 1 at nominal 40% reactor power.

November 10 The station was taken off-line at 2239 hours0.0259 days <br />0.622 hours <br />0.0037 weeks <br />8.519395e-4 months <br /> for planned maintenance in containment and the reactor was shutdown at 2240 hours0.0259 days <br />0.622 hours <br />0.0037 weeks <br />8.5232e-4 months <br /> on November 10. Maintained station in Operational Mode 3.

November 11 Station in Operational Mode 3 for maintenance. Entered containment to seal a steam leak, which was isolated at 1245 hours0.0144 days <br />0.346 hours <br />0.00206 weeks <br />4.737225e-4 months <br />. Reactor startup was commenced at 1356 hours0.0157 days <br />0.377 hours <br />0.00224 weeks <br />5.15958e-4 months <br /> and the reactor was critical at 1415 hours0.0164 days <br />0.393 hours <br />0.00234 weeks <br />5.384075e-4 months <br />. At 2013 houre, the reactor tripped due to low-low steam generator water level signal when operator had difficulty maintaining level in narrow range caused by interim lo-lo level setpoint of 20%. Reactor was critical again by 2127 hours0.0246 days <br />0.591 hours <br />0.00352 weeks <br />8.093235e-4 months <br />. The turbine roll-off occurred at 2150 hours0.0249 days <br />0.597 hours <br />0.00355 weeks <br />8.18075e-4 months <br /> and the generator was synchronized at 2232 hours0.0258 days <br />0.62 hours <br />0.00369 weeks <br />8.49276e-4 months <br />.

November 12 Station in Operational Mode 1 at nominal 35% reactor power.

November 13 to Station in Operational Mode 1 at nominal 40% reactor power.

November 21 November 22 Station in Operational Mode 1. Reduced the power level from nominal 40% to 35% reactor power at 0130 hours0.0015 days <br />0.0361 hours <br />2.149471e-4 weeks <br />4.9465e-5 months <br /> to conserve fuel.

November 23 Station in Operational Mode 1 at nominal 35% reactor power.

through Between approximately 0900 and 1030 hours0.0119 days <br />0.286 hours <br />0.0017 weeks <br />3.91915e-4 months <br /> on November 27, a November 30 potential safety problem was created when a motor operated valve from the refueling water storage tank was placed on clearan.:e while the diesel generator which provides emergency power for the redundant valve was also on clearance. The redundant valve was immediately opened upon discovery (LER 79-46). Station shutdown was commenced at 2200 hours0.0255 days <br />0.611 hours <br />0.00364 weeks <br />8.371e-4 months <br /> and the unit was taken off-line at 2400 hours0.0278 days <br />0.667 hours <br />0.00397 weeks <br />9.132e-4 months <br /> on November 30 to begin an extended outage for refueling and major station modifications. The reactor tripped at 0029 hours3.356481e-4 days <br />0.00806 hours <br />4.794974e-5 weeks <br />1.10345e-5 months <br /> (on December 1) due to a signal spike causing a source range channel high flux trip.

Major Safety-Related Maintenance - November, 1979

1. Radiation monitors for the containment internal atmosphere, the ventilation system exhaust and the liquid waste effluent discharge line were repaired and placed back into service.

2. A torque switch on the redundant supply valve from the refueling water storage tank to the high head charging pumps [MOV-CH-115D] was replaced when the valve would not close remotely.

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