ML19340F000

Monthly Operating Rept for Dec 1980

ML19340F000
Person / Time
Site:	Beaver Valley
Issue date:	01/06/1981
From:	Timko D DUQUESNE LIGHT CO.
To:
Shared Package
ML19340E994	List: ML19340E993 ML19340E997 ML19340E998 ML19340F000
References
NUDOCS 8101160470
Download: ML19340F000 (6)

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OPERATING DATA REPORT DOCKET NO. 50-334 DATE 1/6/H COMPLETED BY D. L Tinko TELEPHONE. 41' '41-9308 OPERATING STATUS

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

2. Reporting Period:

December 1980

3. f Wawd Thermal Power (MWt):

4. Nesnepiste Rating (Gross MWe):

523 852 S. Desegn Elecmcal Rating (Net MWe):

845

6. Maximum Dependable Capacity (Gross MWe):

7. Maximum Dependable Capacity (Net MWe):

810

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:

N/A j

nis Month YrAo.Dete Cumulative 74 4 8784 T40,951

!!. Hours in Reporting Period

12. Number Of Hours Reactor Was Critical 422.33 755.96 14.500.67

13. Reactor Reserve Shutdown Hours 0

0

~4,482.8

14. Hours Generator On.Line 421.9 601.18 13,706.25

15. Unit Reserve Shutdown Hours 0

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16. Gross Thermal Energy Generated (MWH) 916,650.53 1,133,639.82 28,107,893.15

17. Gross Electrical Energy Generated (MWH) 303,200 349,400 8,627,340

18. Net Electrical Energy Generated (MWH) 278,959 290.761 7.861.504

19. Unit Service Factor 56.7 6.8 34.2

20. Unit Availability Factor 56.7 6.8 34.2

21. Unit Capacity Facter (Using MDC Net) 46.3 4.2 26.4

22. Unit Capecity Factor tUsing DER Net) 44.0 4.0 2 5.~ 1

23. Unit Forced Outage Rate 43.3 39.2 46.1

24. Shutdowns Scheduled Over Next 6 Months iType. Date, and Duration of Each t:

Major modification outage /May 15, 1981/6 weeks

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

1/8/81

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

Foreces Achieved INITIAL CRITICALITY N/A N/A INITIAL ELECTRICITY N/A N/A l

COMMERCIAL OPERATION N/A N/A 810116 0 W

l AVERAGE DAILY UNIT POWER LEVEL 50-334 DOCKET NO.

UNIT BVPS Unic #1 DATE 1/6/81 D. R. Timko COMPLETED BY TELEPHONE 412-643-5308 December 1980 MONTH DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Neti (MWe Net!

17 ROA 509 340 2

a 610 0

3 I,

553 0

4 20 622 0

5 21 627 0

6 22 619 0

7 23 672 0

8

4 9

677 734 0

to 26 692 0

g 27 652 0

32 28 803 0

13 2,

799 0

34 30 804 0

15 3

803 16 INSTRUCT 10NS I uni Pu e lesel n MWe-Net for each day in the repurring month. Cuenpute eu fr hE e I

a (9/77)

50-334 UNIT SHUIDOWNS AND POWER REDUCTIONS DOCKET NO.

UNIT N AME BVPS Unit #1-DATE 1/6/81 REPOR T MONill December, 1980 COMPLETED BY D.

R. Timko 1ELLPilONE 412-643-5308 j

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1 CB VALVEX Unit shut down to repair leaking pressurizer safety valves. The main safety valves had minor corrosive deposits; the pilot valves were not leaking.

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DUQUESNE LIGHT COMPANY Beaver Valley Power Station NARRATIVE

SUMMARY

OF MONTHLY OPERATING EXPERIENCE - DECEMBE21980 December 1 Station in Operational Mode 1 at nominal 48% reactor power.

Increased station load to 58% power.

December 2 Station in Operational Mode 1 at nominal 58% reactor power. Performed station calorimetric measurements and adjusted the Nuclear Instru-mentation System to correspond.

Returned the 1A Main Feedwater Pump to service and began increasing station load.

December 3 Station in Operational Mode 1 at nominal 64% reactor power.

Increased station load to 75% power.

December 4 Station in Operational Mode 1 at nominal 75% reactor power. At 0130 hours0.0015 days <br />0.0361 hours <br />2.149471e-4 weeks <br />4.9465e-5 months <br />, the boron concentration in the Boron Injection Tank was found to be too high and an orderly shutdown was initiated pending dilution to the proper boron concentration. By 0253 hours0.00293 days <br />0.0703 hours <br />4.183201e-4 weeks <br />9.62665e-5 months <br /> the boron concentration was within specifications and the station load was approximately 28% power. The orderly shutdown was terminated and a load increase to 75% power was begun.

December 5 Station in Operational Mode 1 at nominal 75% reactor power. Began through increasing station load to 90% reactor power at the rate of 1%/ hour.

Dece=ber 7 December 8 Station in Operational Mode 1 at nominal 80% reactor power.

Load through increase to 90% power was in progress with brief periods of stabiliza-December 10 tion to supress flux oscillations. Achieved 90% power at 0500 hours0.00579 days <br />0.139 hours <br />8.267196e-4 weeks <br />1.9025e-4 months <br /> on December 10th.

December 11 Station in Operational Mode 1 at nominal 89% reactor power. Began through increasing station load to 100% power at 1%/ hour. From 1125 hours0.013 days <br />0.313 hours <br />0.00186 weeks <br />4.280625e-4 months <br /> December 12 to 1135 hours0.0131 days <br />0.315 hours <br />0.00188 weeks <br />4.318675e-4 months <br /> the load was reduced from 92% to 80% power because of low suction pressure at the main feedwater pumps. At 2225 hours0.0258 days <br />0.618 hours <br />0.00368 weeks <br />8.466125e-4 months <br />, began reducing load to approximately 35% power to permit cleaning the condensate pump strainers. At 0440 hours0.00509 days <br />0.122 hours <br />7.275132e-4 weeks <br />1.6742e-4 months <br /> on December 12th, began increasing station load from 40% to 80% power at about 1%/ minute.

Reached 80% power at 0555 hours0.00642 days <br />0.154 hours <br />9.176587e-4 weeks <br />2.111775e-4 months <br /> and continued increasing load at 1%/ hour. Station reached nominal full load at 2035 hours0.0236 days <br />0.565 hours <br />0.00336 weeks <br />7.743175e-4 months <br /> on December 12th.

December 13 Station in Operational Mode 1 at nominal 99% reactor power.

through December 17 December 18 Station in Operational Mode 1 at nominal 99% reactor power. From 0244 hours0.00282 days <br />0.0678 hours <br />4.034392e-4 weeks <br />9.2842e-5 months <br /> to 0306 hours0.00354 days <br />0.085 hours <br />5.059524e-4 weeks <br />1.16433e-4 months <br />, the power level was being reduced to 90%

power to perform the Power Coefficient Measurement. Load was then increased back to full power. At 0411 hours0.00476 days <br />0.114 hours <br />6.795635e-4 weeks <br />1.563855e-4 months <br />, the pressurizer safety

DUQUESNF. LIGHT COMPANY 3eaver Valley Power Station NARRATIVE

SUMMARY

OF MONTHLY OPERATING EXPERIENCE - DECEMBER 1980 (Continued) valve discharge line high temperature alarm activated, indicating possible leakage through [RV-RC-551C]. At 0907, commenced station shutdown to mode 5 for valve repairs. The main output circuit breakers were tripped open at 1354 hours0.0157 days <br />0.376 hours <br />0.00224 weeks <br />5.15197e-4 months <br /> and the turbine was tripped at 1356 hours0.0157 days <br />0.377 hours <br />0.00224 weeks <br />5.15958e-4 months <br />.

The reactor tripped at 1419 hours0.0164 days <br />0.394 hours <br />0.00235 weeks <br />5.399295e-4 months <br /> when source range channel N-32 spiked high during re-energization.

Commenced RCS cooldown at 1735 hours0.0201 days <br />0.482 hours <br />0.00287 weeks <br />6.601675e-4 months <br /> and entered mode 4 at 2129 hours0.0246 days <br />0.591 hours <br />0.00352 weeks <br />8.100845e-4 months <br />.

December 19 Station in Operational Mode 4 at approximately 318F and 500 psig.

Cooldown of the RCS was in progress. The Residual Heat Removal System was placed into service at 0305 hours0.00353 days <br />0.0847 hours <br />5.042989e-4 weeks <br />1.160525e-4 months <br /> and the station entered mode 5 at 1820 hours0.0211 days <br />0.506 hours <br />0.00301 weeks <br />6.9251e-4 months <br />.

December 20 Station in Operational Mode 5 at approximately 170F and 30 psig.

The RCS cooldown was continuing.

December 21 Station in Operational Mode 5 at approximately 140F and atmospheric through pressure. Containment purge was in progress.

The containment air-December 22 lock doors were opened at 1515 hours0.0175 days <br />0.421 hours <br />0.0025 weeks <br />5.764575e-4 months <br /> on December 22nd.

December 23 Station in Operational Mode 5 at approximately 140F and atmospheric through pressure. Two (of three) pressurizer safety valves were removed, December 27 shipped off-site for repairs and re-installed.

December 28 Station in Operational Mode 5 at approximately 155F and 15 psig.

through RCS filling and venting was in progress and heat tracing problems t

December 29 for the Refueling Water Storage Tank (RWST) instrumentation lines were being resolved. The pressurizer steam bubble was established at about 0250 hours0.00289 days <br />0.0694 hours <br />4.133598e-4 weeks <br />9.5125e-5 months <br /> on December 29th and drawing the containment vacuum was begun at 1715 hours0.0198 days <br />0.476 hours <br />0.00284 weeks <br />6.525575e-4 months <br />. Pressurizer heat-up and RCS pressurization was begun at 1840 hours0.0213 days <br />0.511 hours <br />0.00304 weeks <br />7.0012e-4 months <br />.

December 30 Station in Operational Mode 5 at approximately 142F and 300 psig.

through Pressurizer heat-up to increase RCS pressure was in progress.

The December 31 1C Reactor Coolant Pump was started at 1812 hours0.021 days <br />0.503 hours <br />0.003 weeks <br />6.89466e-4 months <br /> on December 30th r

l and the 1A Reactor Coolant Pump was started at 0419 hours0.00485 days <br />0.116 hours <br />6.92791e-4 weeks <br />1.594295e-4 months <br /> on i

December 31st to increase the RCS temperature.

The Station entered mode 4 at 0423 hours0.0049 days <br />0.118 hours <br />6.994048e-4 weeks <br />1.609515e-4 months <br /> and the Residual Heat Removal system was I

isolated at 1715 hours0.0198 days <br />0.476 hours <br />0.00284 weeks <br />6.525575e-4 months <br /> with the RCS heat-up in progress.

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DUQUESNE LIGHT COMPANY Beaver Valley Power Station MAJOR SAFETY - RELATED MAINTENANCE - DECEMBER 1980 1.

Two (of three) pressurizer safety valves [ RV-RC-551A] and 551C were removed, the seats were polished and the valves were re-installed after leakage was detected.

2.

Heat tracing and insulation of RWST instrument lines were repaired to provide more reliable protection against freezing.

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