ML031060389

March 2003 Monthly Operating Report for Vermont Yankee

ML031060389
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	04/10/2003
From:	Bronson K Entergy Nuclear Northeast, Entergy Nuclear Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
BVY-03-34
Download: ML031060389 (6)

Text

--En tergy Entergy Nuclear Northeast Entergy Nuclear Operations, Inc Vermont Yankee 322 Governor Hunt Rd PO Box 157 Vernon, VT 05354 Tel 802-257-771 1 April 10, 2003 BVY-03-34 United States Nuclear Regulatory Commission ATITN: Document Control Desk Washington, D.C. 20555

Reference:

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

In accordance with section 6.6.B of the Vermont Yankee Technical Specifications, submitted herewith is the Monthly Statistical Report for the Vermont Yankee Nuclear Power Station for the month of March, 2003.

Sincere,

Kevin H. Bronson General Manager, Plant Operations cc: USNRC Region I Administrator USNRC Resident Inspector USNRC Project Manager

,C' -/1

VERMONT YANKEE NUCLEAR POWER STATION MONTHLY STATISTICAL REPORT 03-03 FOR THE MONTH OF MARCH 2003

OPERATING DATA REPORT DOCKET NO.50-271 DATE 030410 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 OPERATING STATUS

1. Unit Name:

Vermont Yankee

2. Reporting Period:

March

3. Licensed Thermal Power(MWt):1593

4. Nameplate Rating(Gross MWe): 540

5. Design Electrical Rating(Net MWe):

522

6. Maximum Dependable Capacity(Gross MWe):

7. Maximum Dependable Capacity(Net MWe):

535 510

8. If changes, occur in capacity ratings(Items Number 3 through 7) last report, give reasons:

9. Power level to which restricted, if any(Net MWe):

N/A

10. Reasons for restrictions, if any:

N/A since This Month

11. Hours in Reporting Period 744.00

12. Number Of Hours Reactor was Critical 744.00

13. Reactor Reserve Shutdown Hours 0.00

14. Hours Generator On-Line 744.00

15. Unit Reserve Shutdown Hours 0.00

16. Gross Thermal Energy Generated(MWH) 1182174.40

17. Gross Electrical Energy Generated(MWH) 408799.00

18. Net Electrical Energy Generated(MWH) 393094.00

19. Unit Service Factor 100.00

20. Unit Availability Factor 100.00

21. Unit Capacity Factor(Using MDC Net) 103.60

22. Unit Capacity Factor(Using DER Net) 101.20

23. Unit Forced Outage Rate 0.00

24. Shutdowns scheduled over next 6 months(Type, Date, Each:

N/A Yr-to-Date Cumulative 2160.00 265128.00 2160.00 225308.83 0.00 0.00 2160.00 221673.78 0.00 0.00 3401416.75 335781833.54 1176377.00 112757307.00 1130743.00 107313102.00 100.00 82.60 100.00 82.60 102.60 79.10 100.30 77.50 0.00 3.90 and Duration of

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 INITIAL ELECTRICITY COMMERCIAL OPERATION VYDPF 0411.01 (Sample)

DP 0411 Rev. 8 Page 1 of 1 RT No. 13.FO1.19F

AVERAGE DAILY UNIT POWER LEVEL I

DOCKET NO. 50-271 UNIT Vermont Yankee DATE 030410 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 MONTH DAY 1.

2.

3.

4.

5.

6.

7.

8.

9.

10.

11.

12.

13.

14.

15.

16.

March AVERAGE DAILY POWER LEVEL (MWe-Net) 530 530 530 530 530 529 530 530 530 529 529 529 529 529 530 529 DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

17.

529

18.

530

19.

529

20.

529

21.

529

22.

529

23.

530

24.

529

25.

529

26.

529

27.

529

28.

529

29.

529

30.

495

31.

529 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 (Sample)

DP 0411 Rev. 8 Page 1 of 1 RT No. 13.FO1.18V

UNIT SHUTDOWNS AND POWER REDUCTIONS REPORT MONTH MARCH DOCKET NO 50-271 UNIT NAME Vermont Yankee DATE 030410 COMPLETED BY G.A. Wallin TELEPHONE (802)258-5414 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 03-03 030329 F

0.00 A

4 N/A EC CKTBRK Relay failure on 379 ATB Power causing logic trip to open Reduction 381, 379, 79-40 ATB's and K-1 OCB.

1 F: Forced S: Scheduled VYDPF 0411.03 DP 0411 Rev. 8 Page 1 of 1 2 Reason:

A-Equipment Failure (Explain)

B-Maintenance or Test C-Refueling D-Regulatory Restriction E-Operator Training and License Examination F-Administrative G-Operational Error (Explain)

H- (Explain) 3 Method:

1 -

Manual 2 -

Manual Scram 3 -

Automatic Scram 4 -

Other (Explain) 4 Exhibit G-Instructions for Preparation of Data Entry Sheets for License Event Report (LER) File (NUREG 0161) 5 Exhibit I -

Same Source

I-DOCKET NO. 50-271 DATE 030410 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 REPORT MONTH March

SUMMARY

OF OPERATING EXPERIENCES Highlights Vermont Yankee operated at 99.7 of rated thermal power for the month.

Gross electrical generation was 408,799 MWHe or 100.6% design electrical capacity.

Operating Summary The following 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 99.9%

of rated thermal power.

030329 At 2143 hours0.0248 days <br />0.595 hours <br />0.00354 weeks <br />8.154115e-4 months <br />, a relay failed on the 379 Air Trip Breaker causing logic to trip open 381, 379, 79-40 ATB's and the K-1 Oil Circuit Breaker.

(See Unit Shutdowns and Power Reductions) 030330 At 0005 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br />, commenced power reduction to 77%.

030330 At 0519 hours0.00601 days <br />0.144 hours <br />8.581349e-4 weeks <br />1.974795e-4 months <br />, following isolation of 379 ATB and breakers 381, 79-40, and K-1 being closed; 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.

VYDPF 0411.04 (Sample)

DP 0411 Rev. 8 Page 1 of 1 RT No. 13.FO1.18X