ML20039G119

Monthly Operating Rept for Aug 1981

ML20039G119
Person / Time
Site:	Beaver Valley
Issue date:	09/02/1981
From:	Timko D DUQUESNE LIGHT CO.
To:
Shared Package
ML20039G118	List: ML20039G117 ML20039G119
References
NUDOCS 8201150303
Download: ML20039G119 (6)

Text

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DUQUESNE LIGHT COMPANY Beaver Valley Power Station NARRATIVE

SUMMARY

OF MONTHLY OPERATING EXPERIENCE - August, 1981 August 1 Station in Operational Mode 1 at nominal full power.

through August 13 August 14 Station in Operational Mode 1 at nominal full power. At 1226 hours0.0142 days <br />0.341 hours <br />0.00203 weeks <br />4.66493e-4 months <br /> through a reactor trip occurred due to a turbine trip. The turbine electro-August 15 hydraulic control (EHC) system hydraulic fluid pressure decreased when the EHC fluid pump tripped and the scandby EH fluid pump failed to start automatically. Reactor start-up was commenced at 1450 hours0.0168 days <br />0.403 hours <br />0.0024 weeks <br />5.51725e-4 months <br />, the reactor was critical at 1510 hours0.0175 days <br />0.419 hours <br />0.0025 weeks <br />5.74555e-4 months <br /> and the main unit generator was synchronized at 2007 hours0.0232 days <br />0.558 hours <br />0.00332 weeks <br />7.636635e-4 months <br />. A reactor trip occurred at 22% reactor power due to Ica-low level in the 1A Steam Generator while transferring from the bypass flow controllers to the main feedwater flow controllers.

The reactor was critical at 2217 hours0.0257 days <br />0.616 hours <br />0.00367 weeks <br />8.435685e-4 months <br /> and the main unit was synchronized at 0049 hours5.671296e-4 days <br />0.0136 hours <br />8.101852e-5 weeks <br />1.86445e-5 months <br /> on August 15, and power level was stabilized at full ,

power by mid-morning.

August 16 Station in Operational Mode 1 at nominal full power.

through ,

August 25 August 26 Station in Operational Mode 1 at nominal full power. At 2223 hours0.0257 days <br />0.618 hours <br />0.00368 weeks <br />8.458515e-4 months <br /> a through reactor trip occurred due to a turbina trip. The turbine EHC system August 27 control signals were causing the turbine throttle valves to modulate.

Reactor start-up was commenced at 0145 hours0.00168 days <br />0.0403 hours <br />2.397487e-4 weeks <br />5.51725e-5 months <br /> on August 27 and the reactor was critical at 0204 hours0.00236 days <br />0.0567 hours <br />3.373016e-4 weeks <br />7.7622e-5 months <br />. Repairs to the turbine EHC system were completed at 1405 hours0.0163 days <br />0.39 hours <br />0.00232 weeks <br />5.346025e-4 months <br />. At 1640 hours0.019 days <br />0.456 hours <br />0.00271 weeks <br />6.2402e-4 months <br /> a reactor trip occurred due to low-low level in the 1C Steam Generator. The reactor start-up was commenced at 2040 hours0.0236 days <br />0.567 hours <br />0.00337 weeks <br />7.7622e-4 months <br />, the reactor was critical at 2102 hours0.0243 days <br />0.584 hours <br />0.00348 weeks <br />7.99811e-4 months <br /> and the main unit generator was synchronized at 2241 hours0.0259 days <br />0.623 hours <br />0.00371 weeks <br />8.527005e-4 months <br />.

August 28 Station in Operational Mode 1 with load increase to full power in ,

progress.

August 29 Station in Operational Mode 1 at nominal full power.

through 31 1

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8201150303 810904 PDR ADOCK 05000334 R PDR l

DUQLESNE LIGHT COMPANY Beaver Valley Power Station MAJOR SAFETY-RELATED MAINTENANCE - AUGUST 1981

1. Repaired the turbine electro-hydraulic control (EHC) system hydraulic pump and pump control circuit.

2. Replaced a logic circuit card for the turbine EHC system throttle valve positioner.

3. Radiation monitor repairs and calibration were in progress.

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. i OPERATING DATA REPORT DOCKET NO. 50-334 DATE W /61 COMPLETED BY D. R. TfAko TELEPHONE. 412-643- 1947 i

OPERATING STATUS

! Beaver Valley Power Station. Unit #1 Notes g, g,;,3, .

August, 1981

2. Reporting Period:

3. Licensed Thermal Power (MWt): 2660

4. Nameplate Rating (Gross MWe): 923

5. Design E!ectrical Rating (Net MWe): 852

6. Maximum Dependable Capacity (Gross MWe): 845

7. Maxt

nus: Dependable Capacity (Net MWe): 810

8. If Changes Occur in Capacity Ratings (Items Number 3 Througli 7) Since Last Report. Give Reasons:

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+

l 9. Power Level To which Restricted. If Any (Net MWe)- No"*

10. Reasons For Restr8ctions. If Any:. N/A This Month Yr.-to-Date Cumulative

! 11. Hours In Reporting Period 744 5,831 46,775  ;

12. Number Of Hours Reactor has Critical 731.53 3,756.14 18,282.81 '

13. Reactor Reserve Shutdown Hours 0 0 4,W.6

14. Hours Generator On-Line 707.77 3,676.68 17.383.93

15. Unit Reserve Shutdown Hours 0 0 0

16. Grou Thermal Energy Generated (MWH) _1850578.86 9,172,596.33 _37,280,489.48

17. Gross Electrical Energy Generated (MWH) 589,700 ,2,951,300 11,578,040

18. Net Electrical Energy Generated (MWH) 552,576 2,726,923 10, m , m

19. Unit Service Fretor

"*I ' *

20. Unit Availability Factor 95.1 63.1 38.7

21. Unit Capacity Factor (Using MDC Net) 91.7 57.8 31.3

22. Unit Capacity Factor (Using DER Net) 8'/.2 54.9 29.6

23. Unit Forced Outage Rate 4.8 36.9 44.0

24. Shutdowns Scheduled Over Next 6 Months (Type. Date.snd Duration of Eacht:

Refueling Outage /Jstiuary 2/13 weeks

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

26. Units le Test Status (Prior to Commercial Operationi: Forecast Achieved

!NITIAL CRITICALITY N/A N/A INITIAL ELECTRICITY N/A N/A COMMERCIAL OPERATION N/A N/A >

(9/77)

f AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.

50-334 UNIT BVPS Unit #1 DATE 9/ /8)

D. R. Timko COMPLETED BY TELEPHONE 412-643-5308 August, 1981 MONTH DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 799 g7 800-791 g 800 2

791 791 3 19 3 799 4* 20 783 21 796 5

800 795 6 22 783 791 7 23 792 783 3 24 791

' 23 787 734 10 26 783 0

,g 27 12 7M 2g 746 783 783 13 29 379 783 14 30 .

647 787 15 31 16 795 INSTRUCTIONS On :his format, list the nerage daily unit power icsciin MWe Net for each day in the report:ng inonth. Compute in the nearest whole megaware.

(9/77)

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e UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-334 _

UNIT NAME IIVPS Uait 81 DATE 9/2/81 COMPLETED BY D. R. Timko REPORT MONTil Au cu<; t . 1981 412-64s- 1947

.TELEPilONE

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y .$ ? 3 $Y3 1.icensee $ g, h Cauw & Coerectne DJN

- 3@ ,4 2sE Event 3,7 6."! Action to

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j di g Repori 8 vi L y' Prevens Recurrence d

8 810814 F 7.68 A 3 HA IriSTRU While draining the Ell fluid reser- -

i voir to troubic shoot a high lesel, alarm, the operating Ell fluid pump ,

tripped, c.nd the standby Ell fluid Y. l pump failed to auto start on lov oi?.

pressure, becaucie the lo-lo level

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lockout relay had tripped. This

. resulted in a turbine trip, reactor l' trip. De-energized the lo-lo lock-out relay.

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9 810814 F 4.21 A 3 Cil INSTRU Main and bypass feed regulating valves control problems resulted in .,

f a low sceam generater level resetor ~

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trip during startup.

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[ S: Schedu!cil .\'. Equipment FailuieILxplaint c IAisnual for pseparati..n of Dara B. Maintenance or Test '?. Manual Serain. linin Sheets for Licensee

! C. Refueling 3. Auto:oaiic Scram. Eseni Repois ILi'Kli ole tnt RTG ,

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'D-Regulier.n Resirkeion . 1-O:hcr(Explain) 0161)

' ' ' I' Operator Tuining & Lisense I:ununation.

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' DOCKET NO, 50-334 -,

UNIT SHUTDOWNS AND POWER REDUCTIONS

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, DATE 9/2/81 ,

REPORT MON fil August,x1981 s ,

COMPLETED RY D. P.-Timko '

1ELFPHONE 412-643 :1941 ,_

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10 810826 F 24.28 A 3 IIA INSTRU A solenoid actuation in EllC system caused the turbine throttic valves to ramp open, causing a turbine trip,.

reactor trip. Lif ted leads on EllC turbine trips.

a 1 2 3 4 F: F.iried Reason: Method: Ealubit G. instinctions 5: Schedu!cd A Equip:nent Failure (Explain) 1 Manual fin Piepasati.m of Daia li Maintenance ci Test 2 Manual Scrain. Entr> Sheet 5 for Liccasee C Refueling 3 Autinuatic Stram. Event Repost ill Rt FileINURfC D Regulaint) Resirletion 4-Other IEsplain) 01614 L-Operalin Training A License Exanunation F Administralise 5 G Operational Ea roe Il.xplain t Estubit 1 Sam /$ouice 19/77) Il Othes (Esplain t l