ML021070429

March 2002 Monthly Operating Report for Vermont Yankee

ML021070429
Person / Time
Site:	Vermont Yankee
Issue date:	04/10/2002
From:	Bronson K Vermont Yankee
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
BVY-02-22
Download: ML021070429 (7)

Text

VERMONT YANKEE NUCLEAR POWER STATION P.O. Box 157, Governor Hunt Road Vernon, Vermont 05354-0157 (802) 257-7711 April 10, 2002 BVY-02-22 United States Nuclear Regulatory Commission ATIN: 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, 2002.

Sincerely, TTO 7ERM ANKEE NUCLEAR POWE Kevin H. Bronson Plant Manager cc: USNRC Region I Administrator USNRC Resident Inspector - VYNPS USNRC Project Manager - VYNPS K~c2LIoc)o~c4

VERMONT YANKEE NUCLEAR POWER STATION MONTHLY STATISTICAL REPORT 02-03 FOR THE MONTH OF MARCH 2002

OPERATING DATA REPORT DOCKET NO.50-271 DATE 020410 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 OPERATING STATUS

1. Unit Name: Vermont Yankee

2. Reporting Peri< od: 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): 535

7. Maximum Dependable Capacity(Net MWe): 510 If changes, occur in capacity ratings(Items Number 3 through 7) since 8.

last report, give reasons:

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 744.00 2160.00 256368.00

11. Hours in Reporting Period 744.00 2160.00 217275.42

12. Number Of Hours Reactor was Critical 0.00 0.00 0.00

13. Reactor Reserve Shutdown Hours 744.00 2160.00 213706.44

14. Hours Generator On-Line 0.00 0.00 0.00

15. Unit Reserve Shutdown Hours 1064825.60 3281309.08 323471393.28

16. Gross Thermal Energy Generated(MWH)

Generated(MWH) 364169.00 1128935.00 108558524.00

17. Gross Electrical Energy 349713.00 1085370.00 103305113.00

18. Net Electrical Energy Generated(MWH) 100.00 100.00 82.30

19. Unit Service Factor 100.00 100.00 82.30

20. Unit Availability Factor 78.70 92.20 98.50

21. Unit Capacity Factor(Using MDC Net) 90.00 96.30 77.10

22. Unit Capacity Factor(Using DER Net) 0.00 0.00 4.04

23. Unit Forced Outage Rate and Duration of

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

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. 7 Page 1 of 1 RT No. 13.FO1.19F

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-271 UNIT Vermont Yankee DATE 020410 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 MONTH March DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net)

1. 398 17. 528

2. 511 18. 525

3. 408 19. 527

4. 515 20. 527

5. 527 21. 517

6. 433 22. 478

7. 320 23. 477

8. 441 24. 477

9. 516 25. 455

10. 446 26. 475

11. 505 27. 356

12. 524 28. 305

13. 528 29. 345

14. 528 30. 450

15. 527 31. 474

16. 527 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. 7 Page 1 of 1 RT No. 13.F01.18V

UNIT SHUTDOWNS AND POWER REDUCTIONS REPORT MONTH MARCH DOCKET NO 50-271 UNIT NAME Vermont Yankee DATE 020410 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 02-03 020301 S 0.00 B,H* 4 N/A RB CONROD Rod pattern exchange and Power turbine bypass valve Reduction testing 02-04 020303 5 0.00 H* 4 N/A RB CONROD Rod pattern adjustment Power Reduction 02-05 020306 S 0.00 B,H* 4 N/A RB CONROD Power suppression testing Power and a rod pattern adjustment Reduction 02-06 020310 5 0.00 H* 4 N/A RB CONROD Rod pattern adjustment Power Reduction 02-07 020327 5 0.00 B,H* 4 N/A RB CONROD Single rod scram and power Power suppression testing Reduction 1 F: Forced 2 Reason: 3 Method: 4 Exhibit G- Instructions A-Equipment Failure (Explain) 1 - Manual for Preparation of Data S: Scheduled 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 VYDPF 0411.03 F-Administrative DP 0411 Rev. 7 G-Operational Error (Explain)

Page 1 of 1 *H-(Explain) - Rod pattern exchange/adjustment/suppression testing/single rod scrams

DOCKET NO. 50-271 DATE 020410 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 REPORT MONTH March

SUMMARY

OF OPERATING EXPERIENCES Highlights Vermont Yankee operated at 89.8 of rated thermal power for the month.

Gross electrical generation was 364,169 MWHe or 89.6% 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 77.2%

of rated thermal power.

020301 At 0000 hours0 days <br />0 hours <br />0 weeks <br />0 months <br />, completed power suppression testing.

020301 At 0010 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br />, initiated a rod pattern exchange.

020301 At 0225 hours0.0026 days <br />0.0625 hours <br />3.720238e-4 weeks <br />8.56125e-5 months <br />, completed a rod pattern exchange.

020301 At 0230 hours0.00266 days <br />0.0639 hours <br />3.80291e-4 weeks <br />8.7515e-5 months <br />, initiated turbine bypass valve testing.

020301 At 0250 hours0.00289 days <br />0.0694 hours <br />4.133598e-4 weeks <br />9.5125e-5 months <br />, completed turbine bypass valve testing.

020301 At 0435 hours0.00503 days <br />0.121 hours <br />7.19246e-4 weeks <br />1.655175e-4 months <br />, initiated a return to full power.

020303 At 0035 hours4.050926e-4 days <br />0.00972 hours <br />5.787037e-5 weeks <br />1.33175e-5 months <br />, commenced a power reduction to 68% for a rod pattern adjustment. (See Unit Shutdowns and Power Reductions) 020303 At 0135 hours0.00156 days <br />0.0375 hours <br />2.232143e-4 weeks <br />5.13675e-5 months <br />, initiated a rod pattern adjustment.

020303 At 0320 hours0.0037 days <br />0.0889 hours <br />5.291005e-4 weeks <br />1.2176e-4 months <br />, completed a rod pattern adjustment.

020303 At 0322 hours0.00373 days <br />0.0894 hours <br />5.324074e-4 weeks <br />1.22521e-4 months <br />, initiated a return to full power.

020306 At 1430 hours0.0166 days <br />0.397 hours <br />0.00236 weeks <br />5.44115e-4 months <br />, commenced a power reduction to 59% for suppression testing and a rod pattern adjustment. (See Unit Shutdowns and Power Reductions) 020306 At 2100 hours0.0243 days <br />0.583 hours <br />0.00347 weeks <br />7.9905e-4 months <br />, initiated power suppression testing.

020307 At 1045 hours0.0121 days <br />0.29 hours <br />0.00173 weeks <br />3.976225e-4 months <br />, completed power suppression testing.

020307 At 1550 hours0.0179 days <br />0.431 hours <br />0.00256 weeks <br />5.89775e-4 months <br />, initiated a rod pattern adjustment.

020307 At 1604 hours0.0186 days <br />0.446 hours <br />0.00265 weeks <br />6.10322e-4 months <br />, completed a rod pattern adjustment.

020307 At 1610 hours0.0186 days <br />0.447 hours <br />0.00266 weeks <br />6.12605e-4 months <br />, initiated a return to full power.

020310 At 0703 hours0.00814 days <br />0.195 hours <br />0.00116 weeks <br />2.674915e-4 months <br />, commenced a power reduction to 67% for a rod pattern adjustment. (See Unit Shutdowns and Power Reductions) 020310 At 0855 hours0.0099 days <br />0.238 hours <br />0.00141 weeks <br />3.253275e-4 months <br />, initiated a rod pattern adjustment.

020310 At 0914 hours0.0106 days <br />0.254 hours <br />0.00151 weeks <br />3.47777e-4 months <br />, completed a rod pattern adjustment.

020310 At 1017 hours0.0118 days <br />0.283 hours <br />0.00168 weeks <br />3.869685e-4 months <br />, initiated a return to full power.

VYDPF 0411.04 (Sample)

DP 0411 Rev. 7 Page 1 of 2 RT No. 13.FO1.18X

DOCKET NO. 50-271 DATE 020410 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 REPORT MONTH March 020327 At 0907 hours0.0105 days <br />0.252 hours <br />0.0015 weeks <br />3.451135e-4 months <br />, commenced a power reduction to 51% for a single rod scram and power suppression testing. (See Unit Shutdowns and Power Reductions) 020327 At 1129 hours0.0131 days <br />0.314 hours <br />0.00187 weeks <br />4.295845e-4 months <br />, initiated a single rod scram and power suppression testing.

020329 At 1535 hours0.0178 days <br />0.426 hours <br />0.00254 weeks <br />5.840675e-4 months <br />, completed single rod scram and power suppression testing and initiated a return to full power.

At the end of the reporting period the plant was operating at 90.7% of rated thermal power.

VYDPF 0411.04 (Sample)

DP 0411 Rev. 7 Page 2 of 2 RT No. 13.FO1.18X