ML20006D861

Monthly Operating Rept for Jan 1990 for Vermont Yankee Nuclear Power Station.W/900210 Ltr

ML20006D861
Person / Time
Site:	Vermont Yankee
Issue date:	01/31/1990
From:	Murphy W, Wallin G VERMONT YANKEE NUCLEAR POWER CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
VYV-90-021, VYV-90-21, NUDOCS 9002150141
Download: ML20006D861 (6)

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VERMONT YANKEE NUCLEAR POWER CORPOR AT. ION P. O, BOX 157

!' GOVERNOR HUNT ROAD VERNON, VERMONT 05354 February 10, 1990 VYV 9 0- 021 t ..

1 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555

Dear Sir:

Submitted herewith is the Monthly Statistical Report for the Vermont Yankee Nuclear Power Station for the month of January, 1990.

Very truly yours, VERMONT YANKEE NUCLEAR POWER CORP.

W/h Warren P/ Murph Vice President n Manager of Operations cc 1) USNRC Region I 475 Allendale Road King of Prussia, PA 19406 2).USNRC Resident Inspector, VYNPS DP'0411 Rev. 2 Page 1 of'l

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. I L. VERMONT YANKEE NUCLEAR POWER STATION- -l MONTHLY STATISTICAL REPORT 90-01  ;

FOR THE MONTH OF JANUARY, 1990  ;

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F CPERATING DATA REP RT DOCKET NO. 50-271 ,

.- DATE 900210 <

L, COMPLETED BY G.A. Wallin TELEPHONE (802)257-7711

' OPERATING STATUS  ;

1. Unit' Names Vermont Yankee  !

NOTES: l

2. Reporting Period

January l

3. Licensed Thermal Power (MWt): 1593

4. Nameplate Rating (Gross MWe): 540 l

5. 4 Design Electrical Rating (Net MWe): 514(oc) 504(ce) 15 . Maximum Dependable Capacity (Gross MWe): 535

7. Maximum Dependable Capacity (Net MWe): 504 8.- If changes occur in' capacity ratings (Items Number 3 through 7)since last report, give reasons: .

N/A ,

9. Power level to which restricted, if any(Net MWe): N/A  ;

10. Reasons for restrictions, if any N/A f This Month Yr-to-Date Cumulative i'

11. Hours In-Reporting Period 744.00 744.00 -----

.12. Number Of Hours Reactor was Critical 744.00 744.00 121409.86 13 . - Reactor Reserve Shutdown Hours 0.00 0.00 0.00 118721.07

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14. Hours Generator On-Line 744.QR 744.00 -

15. Unit' Reserve Shutdown Hours 0.00 0.00 -0.00 ,

' 16 . Gross Thermal Energy Generated (MWH)1163410.50 1163410.50 175172967.00  ;

11 7 . Gross Electrical Energy Generated 395211.00 395211.00 58349100.00 i

18. . Net Electrical Energy Generated (MWH)379246.00 379246.00 ~B5394945.00

19. Unit Service Factor 100.00 100.00 78.6% -

20. Unit Availability Factor 100.00 100.00 78.00;

21. ' Unit Capacity Factor (Using MDC Net) 101.14 101.14 72.71 99.17 70.81

22. . Unit capacity Factor (Using DER Net) ~

99.17

23. Unit Forced Outage Rate 0.00 0733 5.69

24. Shutdowns scheduled over next 6 months (Type, Date, and Duration of Each): Maintenance shutdown scheduled for mid-March to last four or five days.

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

26. Units In Test Status (prior to commercial operation): N/A INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION ,

VYDPF 0411.01 DP 0411 Rev. 2 Paga 1 of 1 RT No. 13.F01.19F

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AVERAGE DAILY ONIT POWER LEVEL DOCKET NO. 50-271 UNIT Vermont Yankee DATE 900210 COMPLETED BY G.A. Wallin TELEPHONE (802)257-7711

. MONTH January DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net)

1. 519 17, 520

2. 519 18. 520

3. 521 19. 520

.4. . 519 20, 520

5. 519 21. 517 6.- 363 22. 519

,7. 444 23. 519

8. 502 24. 519 ,

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9. 519 25, 519

10. 519 26. 519

'11. 519 27. 519 .

12. 519 28. 475

13. 520 29. 519

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14. 517 30. 520 ,

15. 520 31. 519 16, 520  ;

JMSTRUCTIONS:

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 n;gawatt. .

VYDPr 0411.02 '

DP 0411 Rev. 2

.POge 1 of 1 RT No. 13.F01.18V  ;

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-. . 7, UNIT SHUTDOWNS AND POWER REDUCTICNS DOCKET No 50-271 REPORT MONTH JANUART UNIT NAME versant Tankee DATE 500210 COMPLETED BT.G.A. Wallin TELEPHONE (002)257-7711 1 2 Method of License System Component Cause and Corrective No. Date Type Duration Reason Shutting Down- Event Code Code Action to (hours) Reactor 3 Report $ 4 S Prevent Recurrence 90-01 900106 5 0.00 B,8* 4 N/A RS CONROD Turbine surveillance and a Rod Power Pattern exchange.

Reduction 1 F: Forced 2 Reason: 3 Method: 4 Exhibit G- Instructions S: Scheduled A-Equipment Failure (Explain) 1- Manual for Preparation of Date 5-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) (NUREG 0161)

E-operator Training and License Examination F-Administrative .

5 Exhibit I- Same Source VTDPr 0411.03 G-operational Error (Explain)

DP 0411 Rev. 2 *H-(Explain) - Rod Pattern Exchange Page 1 of 1

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DOCKET NO. 50-271

.: ., UNIT Vermont Yankee DATE 900210

. . COMPLETED BY G.A. Nallin

. TELEPHONE (302)257-7711 REPORT MONTH January

SUMMARY

OF OPERATING EXPERIENCES Highlights V;rmont Yankee operated at 98.2% of rated thermal power for the month.

Grcss electrical generation was 395,211 MWHe or 98.4% design electrical ccpacity.

Op3 rating Summary ,

The following. is a chronological descri ption of plant operations including other pertinent items of interest for t1e month:  ;

At the btginning of the reporting period the plant was operating at 99.8%

of rated thermal power. .

900106 At 0215 hours0.00249 days <br />0.0597 hours <br />3.554894e-4 weeks <br />8.18075e-5 months <br />, initiated a power reduction to minimum recirculation '

flow to perform a rod pattern exchange.

900106 At 0307 hours0.00355 days <br />0.0853 hours <br />5.076058e-4 weeks <br />1.168135e-4 months <br />, started turbine surveillance at 62.5% power. (See Unit Shutdowns and Power Reductions) 900106 At 0312 hours0.00361 days <br />0.0867 hours <br />5.15873e-4 weeks <br />1.18716e-4 months <br />, completed turbine surveillance.

900106 At 0331 hours0.00383 days <br />0.0919 hours <br />5.472884e-4 weeks <br />1.259455e-4 months <br />, initiated a rod pattern exchange. (See Unit Shutdowns and Power Reductions) 900106 At 0538 hours0.00623 days <br />0.149 hours <br />8.895503e-4 weeks <br />2.04709e-4 months <br />, completed the rod pattern exchange.

900106 At 0800 hours0.00926 days <br />0.222 hours <br />0.00132 weeks <br />3.044e-4 months <br />, began a return to full power.

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

VYDPF 0411.04 DP 0411 Rev. 2 j POge 1 of 1 l RT No. 13.F01.18X ,

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