ML20058G807

Monthly Operating Rept for Oct 1990 for Vermont Yankee Nuclear Power Station

ML20058G807
Person / Time
Site:	Vermont Yankee
Issue date:	10/31/1990
From:	Murphy W, Wallin G VERMONT YANKEE NUCLEAR POWER CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
VYV-90-334, NUDOCS 9011130410
Download: ML20058G807 (6)

Text

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j ' VERMONT YANKEE NUCLEAR POWER CORPOR ATION P, O. BOX 157 GOVERNOR IIUNT ROAD VERNON, VERMONT 05354 November 10, 1990 VYV 90- 334 ,

U.S., Nuclear. Regulatory Commission

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ATTN Document Control Desk

' w a s h i n g t o n=,: D . C .

20555

Dear' Sir:

Submitted' herewith is-..the Monthly Statistical Report for the

.. Vermont Yankee Nuclear' Power Station for the-month of October, 1990.

Very.truly yours, N VERMONT YANKEE NUCLEAR POWER CORP.

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, WarrenP.'Ig/Murphy W(

Senior Vice Presiden , perations l- >

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l .cc: 1)'USNRC Region.I

~475 Allendale' Road-King of Prussia,.PA 19406

2) USNRC.

Resident Inspector, VYNPS DP"0411;Rev. 3 Page:1-of 1 9011130410 901031

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1 VERMONT YANKEE NUCLEAR POWER' STATION "

MONTHLY STATISTICAL REPORT 90-10 FOR THE MONTH OF OCTOBER, 1990 .i a

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i. DP-'0411.Rev. 3

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(- ; l OPERATING DATA REPORT 1 DOCKET NO. 50-271 I DATE 901110 l COMPLETED BY G.A. Wallin- 1 TELEPHONE (802)257-7711 l

-OPERATING STATUS 1

1. i Unit Names Vermont Yankee  !

NOTES:

12 . - Reporting Period October

3. Licensed Thermal Power (MWt): 1593

4. Nameplate Rating (Gross MWe): 540

5. Design Electrical Rating (Net MWe): 514(oc) 504(cc)

~6. Maximum Dependable capacity (Gross MWe): 535 3 7. Maximum Dependable capacity (Net MWe): 504 >

8 _If changes occur in capacity ratings (Items Number 3 through 7)since last report, give reasons: i N/A

[9. . Power level to: which - restricted, if any(Net MWe):

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N/A 10 Reasons for restrictions, if.any: N/A i

. This Month Yr-to-Date Cumulative'

,-11. . Hours InfReporting_ Period _

745.00 7296.00- -----

12. Number"Of~ Hours Reactor.was Critical 410.43 6079.80 126745.66

13. ReactorLReserve Shutdown Hours 0.00 0.00 0.00 14 '. Hours Generator On-Line' 379.40 5959.76 123936.83 <

'15. . Unit Reserve Shutdown Hours- 0.00- 0.00 0.00 116. .GrosA Thermal ~ Energy; Generated (MWH)- 516063.50 9086921.00 183096477.50 117. Gross Electrical! Energy Generated 170972.00 3049169.00 61003058.00  ;

18. Net Electrical ~ Energy = Generated (MWH)163599.00- ~2902177.00 57917876.00

.19. . Unit Service = Factor .

50.93 81.69 78.07 1

20. : Unit Availability Factor 50.93 81.69 78.07 ,

l '21 0 Unit capacity Factor (Using MDC Net) 43.57 78.92; 72.38 .

'22.- . Unit Capacity Factor (Using DER Net) 42.72 77.39 70.98

-23.. Unit Forced; Outage Rate. 0.00' 2.12 .

5.55

.24. Shutdowns-scheduled over next 6 months (Type, Date, and. Duration of  ;

Each): N/A

25. If-shut down at end of. report period, estimated date of startup:.N/A

'26.1 . Units;In' Test' Status (prior to' commercial operation): N/A i

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Forecast Achieved INITIAL CRITICALITY

' INITIAL ELECTRICITY COMMERCIAL OPERATION DP 0411 Rev. 3 Pags 1 of 1

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?.. H 'l AVERAGE DAILY UNIT POWER LEVEL r

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DOCKET NO. 50-271 UNIT Vermont Yankee DATE 901110 COMPLETED BY G.A. Wallin TELEPHONE (802)257-7711 T- MONTH October DAY AVERAGE' DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net)

1. - 0 17, 211

--5 4

2. 0 18, 216

3. 0 19, 323 L'

-4. 0 20, 449

5. 0 21. 426

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6. 0 22, 505

7. 0 23. 516

8. 0 24. 514 9.- 0 25, 511

10. 0 26. 510

- 11 '. 0 27. 510

12. 0 28. 502 (25 hr. day)

13. 0 29, 514

14.. 0 '30. 514

15. 0 31. 514

16. 61 s

INSTRUCTIONS:

On.this format, list the average daily unit power level in MWe-Net-for each day in the reporting month. Compute to the nearest whole

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2 megawatt.

-VYDPr 0411.02 DP'0411 Rev. 3 Page 1 of 1 RT No. 13.F01.18V N

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UNZT NEUTDOWNN ' A!33 POWER ECDUCTION2 ,'.:

• DOCIET NO 50-271

• REPORT MONTH OCTOBER UNIT NAME Yermont Tankee DATE 901110 COMPLETED BT G.A. Wallan TELEPHONE (802)257-7711

• 1 2 Method of License System component Cause and corrective No. Date Type Dura tion - Reason Shutting Down JEvent Code Code Action to

( h o u r s, ) Reactor 3 Reportt 4 5 Prevent Recurrence 90-08 901001 S 363.33- C,8 1. 5/A N/A N/A Shutdown for 1990 Refueling /

(Cont)

Maintenance' outage.

90 901016 S 2.27 B N/A N/A N/A. N/A Turbane overspeed testing.

1 F: Forced 2 Reason: 3 Method:

5: Scheduled 4 Exhibit G- Instructions A-Equipment Failure (Explain) 1- Manual for Preparation of Data

! B-Maintenance or, Test. 2- Manual Scram Entry Sheets for Licensee C-Refueling 3- Automatic Scram ' Event Report (LER) File D-Regulatory Restriction 4- Other (Explain)

E-Operator Training and License Examination (NUBEG'0161)

-- F-Adm i n i s t r a t i ve VYDPF 0411.03 5 Exhibit I - Same Scurce G-Operational Error (Explain)

DP 0411 Rev. 3 -E-(Explain)

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DOCKET NO. 50-271

.. UNIT Vermont Yankom DATE 901110 COMPLETED BY'G.A. Wallin TELEPHONE (802)257-7711 REPORT MONTH October

SUMMARY

OF OPERATING EXPERIENCES Highlights Vernont Yankee operated at 43.5% of rated thermal power for the month.

' Gross-electrical generation was 170,972 MWHe or 42.5% design electrical capacity.

Oparating Summary The following is a chronological description of plarat operations including other pertinent items of interest for the month:

At'the beginning of the reporting period the plant was operating at 00.0%

of rated thermal power.

901014~ At 2234 hours0.0259 days <br />0.621 hours <br />0.00369 weeks <br />8.50037e-4 months <br />,:the-reactor was critical.

901016 At 0320 hours0.0037 days <br />0.0889 hours <br />5.291005e-4 weeks <br />1.2176e-4 months <br />, the turbine-generator was phased.to the grid.

901016 At 0823 hours0.00953 days <br />0.229 hours <br />0.00136 weeks <br />3.131515e-4 months <br />, the turbine-generator was removed from the grid for (See Unit Shutdowns and Power Reductions) testing.

901016 At 1039 hours0.012 days <br />0.289 hours <br />0.00172 weeks <br />3.953395e-4 months <br />,'the-turbine-generator was phased to the grid following testing and a return to full power was initiated.

=At'the end of the reporting period the plant-was operating at 99.9% of rated thermal--power.

VYDPr 0411.04 DP.0411 Rev. 3.

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