BVY-96-114, Monthly Operating Rept for Sept 1996 for Vynp

Monthly Operating Rept for Sept 1996 for Vynp

ML20128N475
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	09/30/1996
From:	Wallin G, Wanczyk R VERMONT YANKEE NUCLEAR POWER CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
BVY-96-114, NUDOCS 9610160401
Download: ML20128N475 (6)

Text

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4 VERMONT YANKEE N.UCLEAR POWER CORPORATION l Ay P.O. Box 157, Governor Hunt Road i

W\' Vernon, Verrnont 05354 0157 l

t s V,,/ (802) 257-7711 t

l October to,1996

BVY-Si ? 14 l

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

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 l herewith is the Monthly Statistical Report for the Vermont Yankee Nuclear Power Station for l l

the month of Seotember.1996.

Sincerely, j VERMONT YANKEE NUCLEAR POWER CORPORATION Robert J. Wanczyk Plant Manager l

cc: USNRC Region I Administrator  !

USNRC Resident Inspector - VYNPS USNRC Project Manager - VYNPS l

l 9610160401 960930 PDR ADOCK 05000271 R PDR

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VERMONT YANKEE NUCLEAR POWER STATION 1

l MONTIILY STATISTICAL REPORT 96-09 FOR TIIE MONTil OF SEPTEMBER 1996 l l

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DP 0411 Rev. 6 Page 1 of I I

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OPERATING DATA REPORT DOCKET NO.50-271 DATE 961010 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 OPERATING STATUS

1. Unit Name: Vermont Yankee 1

2. Reporting Period: September

3. Licensed Thermal Power (MWt):1593

4. Nameplate Rating (Gross MWe): 110 l l

5. Design Electrical Rating (Net MWe): 522 l

6. Maximum Dependable Capacity (Gross MWe): 135

7. Maximum Dependable Capacity (Net MWe): 510

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

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

11. Hours in Reporting Period 720.00 6575.00 208919.00

12. Number Of Hours Reactor was Critical 140.80 5995.80 173476.83

13. Reactor Reserve Shutdown Hours 0.00 0.00 0.00

14. Hours Generator On-Line 136.30 5991.30 170242.30 l

15. Unit Reserve Shutdown Hours 0.00 0.00 0.00 l 16. Gross Thermal Energy Generated (MWH) 185596.30 9357475.80 255440235.10

17. Gross Electrical Energy Generated 60212.00 3207880.00 85293387.00

18. Net Electrical Energy Generated (MWH) 56139.00 3069747.00 81086846.00

19. Unit Service Factor 18.90 91.10 80.80 l 20. Unit Availability Factor 18.90 91.10 80.80

21. Unit Capacity Factor (Using MDC Net) 15.30 91.50 76.30

22. Unit Capacity Factor (Using DER Net) 14.90 89.40 74.80

23. Unit Forced Outage Rate 0.00 0.00 4.63 l 24. Shutdowns scheduled over next 6 months (Type, Date, and Duration of l Each: N/A

' 25. If shut down at end of report period, estimated date of startup:961014

26. Units In Test Status (prior to commercial operation): N/A Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION VYDPF 0411.01 l DP 0411 Rev. 6 l Page 1 of 1 RT No. 13.F01.19F

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.' AVERAGE DAILY UNIT POWER LEVEL '

l l DOCKET NO. 50-271 l UNIT ' Vermont Yankee DATE 961010  ;

COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 MONTH September  !

DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) l

1. 428 17. 0 ,

1

2. 424 18 . .. O I

3. 421 19. O

! 420

4. 20. O l 5. 414 21. O i t 6. 231 22. O _

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7. 0 23. O  ;

8. O 24. 0

9. 0 25. 0

10. 0 26. 0 l 11. 0 27. 0

12. 0 28. 0

13. 0 29. O _

14. 0 30. 0

15. 0 31. ---

16. O 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 DP 0411 Rev. 6 Page 1 of 1 RT No. 13.F01.18V i

UNIT SHUTDOWNS AND POWER REDUCTIONS -

REPORT MONTH SEPTEMBER DOCKET NO 50-271

• UNIT NAME Vermont Yankee DATE 961010 -

G.A. Wallin COMPLETED BY 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 96-07 960906 S 583.73 B,C 1 N/A RB CONROD Shutdown for 1996

• Refueling / Maintenance outage r 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 i VYDPF 0411.03 F-Administrative '

DP 0411 Rev. 6 G-Operational Error (Explain)

Page 1 of 1 H-(Explain) -

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DOCKET NO. 50-271 DATE 961010 COMPLETED BY G 2 A. WALLIN TELEPHONE (802)258-5414 l REPORT MONTH Sectember

SUMMARY

OF OPERATING EXPERIENCES Hiahliahts Vermont Yankee operated at 16.2% of rated thermal power for the month.

Gross electrical generation was 60.212 MWHe or 15.3% design electrical capacity.

ODeratina Summarv

.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 87.6%

of rated thermal power.

960906 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 1996 Refueling / Maintenance outage. (See Unit Shutdowns and Power Reductions) 960906 At 1616 hours0.0187 days <br />0.449 hours <br />0.00267 weeks <br />6.14888e-4 months <br />, the turbine-generator was removed from the grid.

960906 At 2049 hours0.0237 days <br />0.569 hours <br />0.00339 weeks <br />7.796445e-4 months <br />, the reactor was sub-critical.

At the end of the reporting period the plant was shutdown for the 1996 Refueling / Maintenance outage.

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