ML20058G807

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

ML20058G807
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
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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' 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.

k WarrenP.'Ig/M W(

e urphy Senior Vice Presiden,

perations l-o l

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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 ADOCK0500g1

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1 VERMONT YANKEE NUCLEAR POWER' STATION MONTHLY STATISTICAL REPORT 90-10 FOR THE MONTH OF OCTOBER, 1990

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DP-'0411.Rev. 3

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OPERATING DATA REPORT 1

DOCKET NO.

50-271 DATE 901110 COMPLETED BY G.A.

Wallin-1 TELEPHONE (802)257-7711 l

-OPERATING STATUS

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)

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Maximum Dependable capacity (Gross MWe): 535 7.

Maximum Dependable capacity (Net MWe):

504 3

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_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):

N/A

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10 Reasons for restrictions, if.any:

N/A i

This Month Yr-to-Date Cumulative'

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. Hours InfReporting_ Period 410.43 6079.80 126745.66 745.00 7296.00-12.

Number"Of~ Hours Reactor.was Critical 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

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. 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

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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

Forecast Achieved

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INITIAL CRITICALITY

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

RT No. 13.F01.19F i

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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 2.

0 18, 216 4

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

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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 megawatt.

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-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:

4 Exhibit G-Instructions 5: Scheduled 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)

(NUBEG'0161)

E-Operator Training and License Examination

-- F-Adm i n i s t r a t i ve 5 Exhibit I - Same Scurce VYDPF 0411.03 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 testing.

(See Unit Shutdowns and Power Reductions) 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.

Page 1 of 1 RT No. 13.rO1.18x

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