ML20217M780

Monthly Operating Rept for Jan 1998 for Vynp Station

ML20217M780
Person / Time
Site:	Vermont Yankee
Issue date:	01/31/1998
From:	Maret G, Wallin G VERMONT YANKEE NUCLEAR POWER CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
BVY-98-17, NUDOCS 9802200027
Download: ML20217M780 (6)

Text

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, ' VEJtMONT YANKEE

' NUCLEAR POWER CORPORATION 1

3 - P.O. Box 157, Governor Hunt Road *

, (W3 s Vernon, Verrnont 05354-0157 sj , Y (802) 257 7711 L: .

February 10,1998 BVY-98-17 j l

United States Nuclear Regulatory Commission i ATTN: Document Control Desk Washington, D.C. 20555 {

I J

Reference:

(a) License No. DPR-28 (Docket No. 50-271)

In accordance with section 6.7.A.3 of the Vermont Yankee Technical Specifications, submitted herewith is the Monthly Statistical Report for the Vermont Yankee Nuclear Power Station for the month of January.1998.

i Sincerely, l VE O. T' ENUCLEARPOWERCORPORATION ,

sp>A .M Grego Yare Plant Ma ger cc: USNRC Region I Administrator USNRC Resident Inspector - VYNPS USNRC Project Manager - VYNPS I

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VERMONT YANKEE NUCLEAR POWER STATION E

i MONTHLY STATISTICAL REPORT 98-01 FOR THE MONTH OF JANUARY 1998 l

l Figure II DP 0411 Rev. 7 l Page1 of1 l l

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OPERATING DATA REPORT DOCKET- NO.50-271-DATE 980210 COMPLETED BY G.A. WAT T IN -

TELEPHONE (802)258-5414 >

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! OPERATING STATUS l

1. Unit Name: Vermont Yankee 2.-Reporting Period: Januarv

3. Licensed Thermal Power (MWt) :1551

4. Nameplate Rating (Gross MWe): 512

5. Design Electrical Rating (Net MWe): ill j 6. Maximum "*pendable Capacity (Gross MWe): 515 )

7. Maximum Dependable Capacity (Net MWe): 512 -

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): N/A i

l 10. Reasons for restrictions, if any: N/A This Month Yr-to-Date Cumulative

11. Hours in Reporting Period 744.00 744.00 219888.00

12. Number Of Hours Reactor was Critical 744.00 744.00 184123.98

13. Reactor Reserve Shutdown Hours 0.00 0.00 0.00

14. Hours Generator On-Line -744.00 744.00 180777.00

15. Unit Reserve Shutdown Hours 0.00 0.00 0.00 16.' Gross Thermal Energy Generated (MWH) 1165573.45 1165573.45 271939477.20 {

j 17. Gross Electrical Energy Generated 402195.00 402195.00 90925979.00

18. Net Electrical Energy Generated (MWH) 386476.00 386476.00 86469231.00

19. Unit Service Factor 100.00 100.00 81.30 l 20. Unit Availability Factor 100.00 100.00 81.30 l 21. Unit Capacity Factor (Using MDC Net) 101.90 101.90 77.10

22. Unit Capacity _ Factor (Using DER Net) 99.50 99.50 75.50

23. Unit Forced Outage Rate 0.00 0.00 4.54

24. Shutdowns scheduled over next 6 months (Type, Date, and Duration of Each: 1998 Refuelino Outaae scheduled to beain on March 21. 1998 and end on Acril'30. 1998.

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 Forecast Achieved  !

INITIAL CRITICALITY I INITIAL ELECTRICITY ~

COMMERCIAL OPERATION VYDPF 0411.01 (Sample)

DP 0411 Rev. 7 )

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a AVERAGE DAILY UNIT POWER LEVEL i

DOCKET NO. 50-271 j l -

UNIT Vermont Yankee l DATE 980210 COMPLETED BY G.A. WAT T.IN 1 l TELEPHONE (802)258-5414 MONTH Januarv DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) l

1. 528 17. 524 l

l 2. 528 18. 523 l

l 3. 529 19, 521 i i

4. 529 20. 516

5. 528 21. 519

6. 524 22. 517 l

7. 529 23. 515 i

8. 528 24. ___ 514

9. 528 25. s12 10, 528 26. 510 11, 528 27. 506 l'

12, 527 28. 507 i

l 13. 486 29. 506 l

l 14, 528 30. 505 1

15. 528 31. 504 l I

1 l

16. 526 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.

VYDPF 0411.02 ;3 ample) l DP 0411 Rev. 7 Page 1 of 1 RT No. 13.F01.18V

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DOCKET NO. 50-271 i DATE 980210 l

COMPLETED BY G.A. WALLIN i

TELEPHONE (802)258-5414 l

REPORT MONTH Januarv l

SUMMARY

OF OPERATING EXPERIENCES - .

! l j Hichlichts  !

I Vermont Yankee operated at 98.3% of rated thermal power for the month.

l Gross electrical generation was 402.195 MWHe or 99.0% design electrical *

capacity.

Doeratino Summary I l

l The following is a chronological description of plant operations including l other pertinent items of interest for the month:

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

of rated thermal power.

980113 At 0228 hours0.00264 days <br />0.0633 hours <br />3.769841e-4 weeks <br />8.6754e-5 months <br />, initiated a power reduction to 70% for MSIV full closure test, Turbine Bypass valve testing and a Rod I

Pattern adjustment. (See Unit Shutdowns and Power Reductions) 980113 At 0320 hours0.0037 days <br />0.0889 hours <br />5.291005e-4 weeks <br />1.2176e-4 months <br />, began MSIV full closure test.

980113 At 0340 hours0.00394 days <br />0.0944 hours <br />5.621693e-4 weeks <br />1.2937e-4 months <br />, completed MSIV full closure test.

980113 At 0345 hours0.00399 days <br />0.0958 hours <br />5.704365e-4 weeks <br />1.312725e-4 months <br />, began Turbine Bypass valve testing.

980113 At 0354 hours0.0041 days <br />0.0983 hours <br />5.853175e-4 weeks <br />1.34697e-4 months <br />, completed Turbine Bypass valv.e testing.

980113 At 0357 hours0.00413 days <br />0.0992 hours <br />5.902778e-4 weeks <br />1.358385e-4 months <br />, began a Rod Pattern adjustment. .

980113 At 0403 hours0.00466 days <br />0.112 hours <br />6.66336e-4 weeks <br />1.533415e-4 months <br />, completed the Rod Pattern adjustment. I 980113 At 0408 hours0.00472 days <br />0.113 hours <br />6.746032e-4 weeks <br />1.55244e-4 months <br />, began a return to full power.

l At the end of the reporting period the plant was operating at 95.7% of rated thermal power.

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