ML20082H965

Monthly Operating Rept for Mar 1995 for Vermont Yankee Nuclear Power Station

ML20082H965
Person / Time
Site:	Vermont Yankee
Issue date:	03/31/1995
From:	Reid D, Wallin G VERMONT YANKEE NUCLEAR POWER CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
BVY-95-41, VY-RCE-95-009, VY-RCE-95-9, NUDOCS 9504180004
Download: ML20082H965 (6)

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. VERMONT YANKEE >

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'.NUChEAR POWER CORPORATION P.O. Box 157, Governor Hunt Road

• e g[ Vernon, Vermont 05354-0157

%y (802) 257-7711 l l -

i April 10,1995.

VY-RCE-95-009 .

BYY 95-41 U.S. Nuclear Regulatory Commission Attu: Document Control Desk Washington, D.C. 20555

Reference:

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

)

In accordance with section 6.7.A.1, of the Vermont Yankee Technical i l Specifications, submitted herewith is the Monthly Statistical Report for the Vermont Yankee Nuclear Power Station for the month of March.1995.

Sincerely, ,

Vermont Yankee Nuclear Power Corp.

s l

Donald A.~ Reid ,

Vice President, Operations-cc: USNRC Region I Administrator

j. USNRC Resident Inspector - VYNPS '

USNRC Project Mananger - VYNPS 3CChUO

-. 9504180004 950331 PDR. ADOCK'05000271 M

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VERMONT YANKEE NUCLEAR POWER STATION j

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, MONTHLY STATISTICAL REPORT 95-03 i l FOR TIIE MONTII OF MARCII 1995 i

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) , OPERATING DATA REPORT DOCKET NO.50-271 DATE 950410 COMPLETED BY G. A. WATLIN i l TELEPHONE f802)257-7711  !

OPERATING STATUS

1. Unit Name: Vermont Yankee I

2.4 Reporting' Period: March NOTES:

3. Licensed Thermal Power'(MWt):1593 4 '. Nameplate Rating (Gross MWe): 112 5.. Design Electrical Rating (Net MWe):- 514(oc) 504(cc)

6. Maximum Dependable Capacity (Gross MWe): ] ELE.

. 7. Maximum Dependable' Capacity (Net MWe): 121 ,

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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 This Month Yr-to-Date Cumulative 11.. Hours in Reporting. Period . .

744.00 2160.00 19574'4.00

12. Number Of Hours Reactor was Critical 404.78 1820.78 161684.44 )

13. Reactor Reserve' Shutdown Hours 0.00 0.00 0.00 j

14. Hours Generator On-Line 397.90 1813.90 158531.01 l

15. Unit Reserve Shutdown Hours 0.00 0.00 0.00 .)

16. Gross Thermal Energy Generated (MWH) 596247~.90 2840391.25 237010266.25 1

17. Gross Electrical Energy Generated 200840.00 962003.00 78999355.00 i

18. Net Electrical Energy Generated (MWH) 192519.00 923584.00 75086158.00

19. Unit Service Factor 53.48 83.98 80.99

20. Unit Availability. Factor 53.48' 83.98 80.99 21._ Unit Capacity Factor (Using MDC Net) 51.34 84.84 76.11

22. Unit Capacity Factor (Using DER' Net)

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50.34- -83.19 74.63

23. Unit Forced Outage Rate 0.00 0.00 4.91

24. Shutdowns scheduled =over next 6 months (Type, Date,cand Duration of Each: 1995 Refuelina Outaae beaan on March 17. 1995 and will last

-for a six week neriod. i

25. If shut down at end of report period, estimated date of.startup:950426 I

26. Units In Test = Status (prior to commercial operation): N/A ]

Forecast Achieved i INITIAL CRITICALITY  !

-INITIAL ELECTRICITY COMMERCIAL OPERATION

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AVERAGE DAILY UNIT POWER LEVEL l

, . DOCKET.NO. 50-271 i UNIT Vermont Yankee DATE 950410 l COMPLETED BY G.A. WALLIN ,

TELEPHONE (802)257-7711 )

i MONTH March DAY AVERAGE DAILY' POWER LEVEL DAY AVERAGE DAILY POWER LEVEL l(MWe-Net) (MWe-Net)

1. 500 17, 239

2. 498 18. 0 l

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3. 497 19. 0-

4. 495 20. 0

5. 493 21. O _

6. 492- 22. 0

7. 489 23. 0

8. 487 24. 0

'9. 485 25. 0

10. 483 26. 0

11. 482 27. 0 12, 480 28. 0

13. 479 29. 0

14. 477 30. 0 ,

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15. 474 31. . 0

-16 , 473 INSTRUCTIONS: .

.On this format, list the average daily unit: power ~1evel in MWE-Net l for each day in the reporting month. Compute to the nearest whole negawatt.

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UNIT SHUTDOWNS AND POWER REDUCTIONS REPORT MONTH MARCH DOCKET NO 50-271 UNIT NAME Vermont Yankee >

DATE 950410 '

COMPLETED BY G.A. Wallin TELEPHONE (8021257-7711 1 2 3 4 5 No. Date Type Duration Reason Method of License System Component Cause and Corrective (hours) Shutting Event Code Code . Action to Prevent Down Report # Recurrence Reactor 95-02 950317 S 346.10 _B,C 1 N/A RB CONROD Shutdown for 1995 Refueling / Maintenance outage 1 F: Forced 2 Reason: 3 Method: 4 Exhibit G- Instructions S: Scheduled A-Equipment: Failure (Explain) 1 - Manual for Preparation of Data B-Maintenance or Test 2 - Manual Scram Entry Sheets;for License C-Refueling 3 - Automatic Scram Event Report (LER) File D-Regulatory Restriction 4 - Other (Explain) (NUREG 0161)

E-Operator Training and License Examination 5 Exhibit I - Same Source VYDPP 0411.03 F-Administrative DP 0411 Rev. 5 G-Operational' Error (Explain)

Page 1 of 1 H-(Explain) -

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DOCKET NO. 50-271 DATE 950410

.. COMPLETED BY G.A. WALLIN TELEPHONE (802)257-7711 a .

REPORT MONTH March

SUMMARY

OF OPERATING EXPERIENCES Hichlichts Vermont. Yankee operated at 5fLJi of rated thermal power for- the month.

Gross electrical generation wa.s 200.840 MWHe or 50.0% design electrical capacity.

3 Ooeratina Summarv The following is a chronological description of plant operations including other pertinent f.tems of interest.for the month: ,

At the beginning of the reporting period the plant was operating at 96.7%

of rated. thermal power,-and coasting down to the end of the cycle.

I 950317 At 1100 hours0.0127 days <br />0.306 hours <br />0.00182 weeks <br />4.1855e-4 months <br />, a reactor shutdown was initiated.for the 1995-Refueling /Mbintenance outage. (See Unit Shutdowns and Power Reductions) i j 950317 At 1354 hours0.0157 days <br />0.376 hours <br />0.00224 weeks <br />5.15197e-4 months <br />, the turbine-generator was removed from the grid.

j 950317 At 2047 hours0.0237 days <br />0.569 hours <br />0.00338 weeks <br />7.788835e-4 months <br />, the reactor was sub-critical.

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l At the end of the reporting period the plant was shutdown for the 1995 Refueling / Maintenance outage.

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