ML20086N172

Monthly Operating Repot for Jan 1984

ML20086N172
Person / Time
Site:	Vermont Yankee
Issue date:	01/31/1984
From:	Burger F, Murphy W VERMONT YANKEE NUCLEAR POWER CORP.
To:	NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
VYV-84-039, VYV-84-39, NUDOCS 8402170269
Download: ML20086N172 (7)

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VERMONT YANKEE NUCLEAR POWER STATION MONTHLY STATISTICAL REPORT 84-01 FOR THE MONTH OF JANUARY, 1984

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OPERATING DATA REPORT DOCKET NO. 50-271 l DATE arnein i

f COMPLETED BY P.J. surRer t TELEPHONE 802/257-7711 t

OPERATING STATUS Notes

! 1. Unit Name: Vermont Yankee

2. Reporting Period: _Tann2 rv i 3. Licensed Thermal Power (MWe): 1593

4. Nameplate Rating (Gross MWe)$ san l S. Design Electrical Racing (Net MWe): 514(oc) 504(cc)

6. Maximum Dependable Capacity (Gross MWe): 535 I

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 Leve'. to Which Restricted.If Any(Net MWe): N/A

10. Reasons For Restrictions, If Any: N/A i

! This Month Yr-to-Date Cumulative

11. Hours In Reporting Period 744 744 --

12. Number of Hours Reactor Was Critical 636.61 636.61 80,335.26

] 13. Reactor Reserve Shutdown Houra 0.00 0.00 0.00

14. Hours Generator On-Line 610.7 610.7 78.103.28

] 15. Unit Reserve Shutdown Hours o nn 0.00 0.00

16. Gross Thermal Energy Generated (MWH) 924.182.00 924~.182.00 113.084.861.50

17. Gross Electrical Energy Generated (MWH) 312.103.00- 1121108.00 17.60s.1A6.00

18. Net Electrical Energy Generated (MWH) 299.508.00 '299.508.00 35,664,524.00

19. Unit Service Factor 82.08 82.08 78.41

20. Unit Availability Factor R7 nR A? na 7n At

21. Unit Capacity Factor (Using MDC Net) 79.87 79.87 71.04

22. Unit Capacity Factor (Using DER Net) 78.32 78.32 69.66

23. Unit Forced Outage Rate 17.92- 17.92 7.47

24. Shutdowns Scheduled over' Next 6 Months (Type, Date, and Duration of Each):

Refuel and Maintenance Outage' schedule starting 6/16/84 lasting 8 weeks

25. If Shut Down- At End Of Report Period, Estimated Date of Startup: N/A

26. Units In Test-Status (Prior to Commercial Operation): Forecast- Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION-

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-271 UNIT Vermont Yankee DATE 840210 COMPLETED BY F.J. Burger TELEPHONE 802/257-7711 MONTH January DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-4et) (MWe-Net)

1. 513 17. 517

2. 520 18. 513

3. 520 19. 508

4. 520 20. 200

5. 279 21. 0

6. 0 22. 0 l 7. 192 23. 0

8. 447 24, 151

9. 512 25. 398 10, 521 26. 483

11. 521 27, 502 _ _ -

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12. 519 28. 518

13. 520 29. 516

14. 505' 30. 521

15. 520 31. 520

16. 519 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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3 . -+-L4 -w-UNIT SiluTDOWNS AND POWER REDUCTIONS DOCKET No 50-271 UNIT NAME Vermont Yankee REPORT MONTil Janua ry DATE 840210 COMPLETED BY F.J. Burger TELEPllONE 802/257-7711 No. E '2 m o $

Date y 7;y g y ;; g License gr $,n Cause & Corrective Action to rt# 0 "" "'#"" "

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84-01 840105 F 40.4 A 3 84-01 llA MECFUN A pressure spike on the turbine generator hydraulic control system caused the plant to scram. The system was flushed and

. returned to service.

84-02 840114 S 0 B. 4 N/A IIA ZZZZZZ Power Reduction for Turbine Generator and Power RB CONROD Control Rod Surveillance.

Reductli n 84-03 840120 F 93.0 A 1 N/A IIC llTEXCII Failure of one of two expansion joints on the main condenser forced the plant to shut down. Both expansion joints were replaced and the unit was put back in service.

F: Forced Reason: Method: Exhibit G- Instructions S: Scheduled A-Equipment Failure (Explain) l- 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 l D-Regulatory Restriction 4- Other (Explain)

E-Operator Training & License Examination (NUREG 0161)

F-Administrative 5 G-Operational Error (Explain) Exhibit I - Same Source II-Other (Explain) 7/80

DOCKET NO. 50-271 UNIT VermanL._Yanken DATE 8_4R210 COflPI,ETED fly F . .I . Burger TEI.EPil0NE 802/257-7711 SAFETY REl.ATED MAINTENANCE (

NATURE OF MAI.FIINCTION

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EQkIIPMENT MAINTENANCE NIIMBER CAllSE RESill.T CORRECTIVE ACTION There was no major safety related naintenance N/A N/A N/A N/A N/A required for the month of

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January.

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DOCKET NO. 50-271 UNIT Vermont Yankee DATE 840210 COMPLETED BY F.J. Bureer TELEPHONE 802/257-7711 REPORT MONTH January

SUMMARY

OF OPERATING EXPERIENCES Highlights Vermont Yankee operated at77.98% of rated thermal power for the month.

Gross electrical generation was 312108 MWH or 77.69%of design electrical capacity.

Operating Summarv The fo11cwing is a chronological description of plant operations including

.other pertinent items of interest for the month:

At the beginning of the reporting period the plant was operating at 99.86% of Rated Thermal Power.

840105 At 1252 hrs the Reactor scrammed due to a pressure spf.ke.

840106 At 2035 hrs the Reactor went critical.

840107 At 0514 hrs the Turbine was back on line.

840114 At 0730 hrs a power reduction was initiated for Turbine Generator and Control Rod Surveillance Testing.

840114 At 0930 hrs a return to full power was initiated.

840120 At 0645 hrs a plant shut down was initiated to replace main condenser expansion joints.

840120 At 1258 hrs the Turbine Generato'r was removed from service.

840120 At 1645 hrs the Reactor was suberitical.

840123 At 2026 hrs the Reactor went critical.

840124 At 0955 hrs the Turbine Generator went back on line.

At the end of the reporting period ~ the plant was operating at 99.81%

of Rated Thermal Power.

l VERMONT YANKEE NUCLEAR POWER CORPORATION  !

P. O. BOX 157 GOVERNOR HUNT ROAD VERNON, VERMONT 05354 VYV 84-039 February 10, 1984 U.S. Nuclear Regulatory Commission Director, Office of Management Information and Program Control Washington, DC 20555

Dear Sir:

Submitted herewith is the Monthly Statistical Report for the Vermont Yankee Power Station for the month of January, 1984.

Very truly yours, VERMONT YANKEE NUCLEAR POWER CORP.

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Warren P. Murphy Vice President and Manager of Operations FJB/dre 9

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