BVY-96-041, Monthly Operating Rept for Mar 1996 for Vynp

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Monthly Operating Rept for Mar 1996 for Vynp
ML20107B716
Person / Time
Site: Vermont Yankee Entergy icon.png
Issue date: 03/31/1996
From: Wallin G, Wanczyk R
VERMONT YANKEE NUCLEAR POWER CORP.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
BVY-96-041, BVY-96-41, VY-RE-96-009, VY-RE-96-9, NUDOCS 9604170044
Download: ML20107B716 (6)
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VERMONT YANKEE l

NUCLEAR POWER CORPORATION I

a ksy P.O. Box 157, Governor Hunt Road

/gg/)' Vernon, Vermont 05354-0157 sI/, (802) 257-7711 l

1 I

April 10, 1996 VY-RE-96-009 1 l BVY-96-041 l r ,

U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555 l

Reference:

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

l 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 I the month of March, 1996.

Sincerely, Vermont Yankee Nuclear Power Corp.

, ../0 Robert Wanczyk Plant Manager cc: USNRC Region I Administrator USNRC Resident Inspector - VYNPS USNRC Project Manager - VYNPS f

1000G3 [ 11 9604170044 960331 PDR ADOCK 05000271 1 R PDR

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VERMONT YANKEE NUCLEAR POWER STATION MONTHLY STATISTICAL REPORT 96-03 FOR THE MONTH OF MARCH 1996 l

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l DP 0411 Rev. 6 Page 1 of 1

. t OPERATING DATA REPORT DOCKET NO 50-271 DATE 960410 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): EAR
5. Design Electrical Rating (Net MWe): 522 ,

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6. Maximum Dependable Capacity (Gross MWe): 535
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 l

This Month Yr-to-Date Cumulative i

11. Hours in Reporting Period 744.00 2184.00 204528.00 )
12. Number Of Hours Reactor was Critical 744.00 2184.00 169665.03 l
13. Reactor Reserve Shutdown Hours 0.00 0.00 0.00
14. Hours Generator On-Line 744.00 2184.00 166435.63
15. Unit Reserve Shutdown Hours 0.00 0.00 0.00 4
16. Gross Thermal Energy Generated (MWH) 1179077.00 3463330.80 249546090.00
17. Gross Electrical Energy Generated 408180.00 1199730.00 83285237.00
18. Net Electrical Energy Generated (MWH) 392573.00 1153605.00 79170704.00
19. Unit Service Factor 100.00 100.00 81.38
20. Unit Availability Factor 100.00 100.00 81.38
21. Unit Capacity Factor (Using MDC Net) 103.50 103.60 76.10
22. Unit Capacity Factor (Using DER Net) 101.10 101.20 74.60
23. Unit Forced Outage Rate 0.00 0.00 4.73
24. Shutdowns scheduled over next 6 months (Type, Date, and Duration of ,

Each: 1996 Refuelino Outaae scheduled to becin on August 23, 1996 and end on September 22. 1996.

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 DP 0411 Rev. 6 Page 1 of 1 RT No. 13.F01.19F

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s AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-271 UNIT Vermont Yankee DATE 960410 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 MONTH March i

, DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL '

l (MWe-Net) (MWe-Net) l

\ l l 1. 530 17. 530 l

2. 530 18. 530
3. 531 19. 530  ;

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4. 530 20. 529  ;
5. 530 21. 530
6. 530 22. 529
7. 530 23. 529 I
8. 531 24. 529 l
9. 530 25. 530
10. 530 26. 462 l l

11, 530 27. 530 l 12, 527 28. 530

13. 531 29. 529
14. 531 30. 529
15. 530 31. 529 l
16. 530 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 l

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.. . . - . . . _ . _ . . . . _ _ . . ..- . . - . = -. . . . -.. . . _ -

UNIT SHUTDOWNS AND POWER REDUCTIONS REPORT MONTH MARCH DOCKET NO 50-271 UNIT NAME Vermont Yankee DATE 960410 COMPLETED BY G.A. Wa11in 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 96-03 960326 F 00.00 B 4 N/A EB TRANSF "B" recirculation pump Power trip; loss of Bus #7 Reduction due to personnel error during T-7 ammeter calibration.

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 4 License Examination 5 Exhibit I - Same Source 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 s

DATE 960410

COMPLETED BY G.A. WALLIN f

TELEPHONE (802)258-5414 REPORT MONTH March

SUMMARY

OF OPERATING EXPERIENCES f Hiahliahts i

Vermont Yankee operated at 99.5% of rated thermal power for the month.

Gross electrical generation was 408,180 MWHe or 100.5% design electrical capacity.

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

l At the beginning of the reporting period the plant was operating at 99.9%

of rated thermal power.

960326 A,t 1140 hours0.0132 days <br />0.317 hours <br />0.00188 weeks <br />4.3377e-4 months <br />, recirculation pump "B" tripped, due_to loss of Bus

  1. 7. Trip caused by failing to defeat protective circuitry during calibration of T-7 ammeter. "A" recirculation pump reduced to ,

70%. (See Unit Shutdowns and Power Reductions) j 960326 At 1150 hours0.0133 days <br />0.319 hours <br />0.0019 weeks <br />4.37575e-4 months <br />, reducing power by inserting rods in reverse  !

sequence, to exit stability region. l 960326 At 1217 hours0.0141 days <br />0.338 hours <br />0.00201 weeks <br />4.630685e-4 months <br />, exited stability region, stopped rod insertions.

960326 At 1240 hours0.0144 days <br />0.344 hours <br />0.00205 weeks <br />4.7182e-4 months <br />, inserting rods to 35% power in preparation for "B" recirculation pump restart.

1 960326 At 1356 hours0.0157 days <br />0.377 hours <br />0.00224 weeks <br />5.15958e-4 months <br />, started "B" recirculation pump, and began a return  ;

to full power.  ;

At the end of the reporting period the plant was operating at 99.9% of rated thermal power.

VYDPF 0411.04 DP 0411 Rev. 6 Page 1 of 1 RT No. 13.F01.18X

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