ML20101A965

Monthly Operating Rept for Nov 1984

ML20101A965
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	11/30/1984
From:	Burger F, Murphy W VERMONT YANKEE NUCLEAR POWER CORP.
To:	NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
VYV-84-620, NUDOCS 8412190462
Download: ML20101A965 (7)

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t' VERMONT YANKEE NUCLEAR POWER STATION MONTE.Y STATISTICAL REPORT 84-11

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8412190462 041130 PDR ADOCK 05000271 R

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l-OPERATING DATA REPORT L

Dockst No.

50-271 Date 841215 C

leted by F.J. Buroer Tel hone (802)23/-7711 OPERATING STATUS Notese

1. ~ unit Namee Vermont Yankee 2.

Reporting Perloa.

NovemDer 3.

Licensed Thermal Power (MWt):

1593 4.

Nameplate Rating (Gross MWe) 540 5.

Design Electrical Rating (Net MReje514(OCJ504(CC) 6.

Maximum Dependable Capacity (Gross MWe).

535 7.

Maximum Dependable Capacity (Net MWe) 504 8.

If changes occur in capacity ratings litems humoer 3 through 7) since last

, li report, give reasons, N/A t

9.

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

N/A

10. Reasons for restrictions, if anye N/A This month Yr-to-Date Cumulative

11. Hours in Reporting Period 720.00 8040.00

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12. Number of Hours Reactor was Critical 720.00 6371.28 86069.93

13. Reactor Reserve Shutdown Hours 0.00 0.00 0.00

14. Hours Generator On-Line 720.00 6193.49 83686.07

15. Unit Reserve Shutdown Hours 0.00 0.00 0.00

16. Gross Thermal Energy Generated (M(H) 1138904.50 9234583.50 121395263.00

17. Gross Electrical Energy Generated (MWH) 386720.00 3101598.00 40394676.00

18. Net Electrical Energy Generated (MWH) 370617.00 2956609.00 38321625.00

19. Unit Service Factor 100.00 77.03 78.28

20. Unit Availability Factor 100.00 77.03 78.28

21. Unit Capacity Factor (using K)C Net) 102.13 72.96 71.13

22. Unit Capacity Factor (using DER Net).

100.15 71.54 69.74

23. Unit Forced Outage Rate 0.00 8.22 7.44

.24 Shutdowns scheduled over next 6 months (Type, Date and Duration of Each),

None

25. If shut down at end of report period, estimated date of startup, N/A

26. Units in Test Status (prior to commercial operation),

Forecast Achieved Initial Criticality Initial Electricity Commercial Operation

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AVERAGE DAILY UNIT POWER LEVEL 00cket No. 50-271 Unit Vermont Yankee Date 841215 Completed by F.J. Ouraer Telephone (802) 257-7711 UAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1 512 17 519 2

513 18 512 l

3 514 19 519 4

511 20 519 5

519 21 519 i

6 521 22 519 7

519 23 519 0

519 24 520 9

519 25 512 1

10 519 26 519 11 449 27 520 12 518 28 520 1

13 519 29 519 14 519 30 519 15 519 31 16 499 l

INSTRUCTIONS, un 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.

MSR.F2 l

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Docket No. 50-271 Unit vermont Yankee UNIT SHUTDOWNS AND POWER REDUCTIONS Date 841215 Completed by F.J. Burger REPORT MONTH November Telephone (802) 257-7711 1

2 3

4 5

No.

Date Typed Duration Reason Method of License System Component Cause and Corrective Action to (hours)

Shutting Down Event Code Code Prevent Recurrence Reactor Report

• 84-20 841111 F

0 A

4 N/A C8 ELECUN Power reduction caused by the

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Power loss of the 'B' Reactor Recirc Reduction Pump M-G set due to failed tacho-meter generator.

The tach gen-erator was replaced.

84-21 841116 F

0 G

4 N/A CB ZZZZZZ Power reduction caused by the Power loss of the 'A' Reactor Recirc Reduction Pump M-G set due to an operator error that tripped motor control center 6A feeder breaker.

The breaker was reset.

1 2

3 4

F-Forced A-Equipment Failure (Explain) method:

Exhibit G Instructions S-Scheduled B-Maintenance or Test 1-Manual for Preparation of Data Entry C-Refueling 2-Manual Scram Sheets for Licensee Event D-Regulatory Restriction 3-Automatic Scram Report (LER) File (NUREG 0161)

E-Operator Training and License Examination 4-Other'(Explain)

F-Administrative 5

G-Operational Error (Explain)

Exhibit I - Same Source H-Other (Explain)

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Dockst No.

50-271 Unit Vrrmont Yankee Dsto' 841T15 Completed " Y;J. Burger SAFETY-RELATED MAINTENANCE Telephoru. i&C) 257-7711 EQUIPMENT NATURE OF LER OR OUTAGE MALFleCTIUN CORRECTIVE ACTION MAINTENANCE NUMBER CAUSE RESULT None L

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Docknt No.

50-271 Unit Vermont Yankee Gate 841215 Completed by F.J. Burger Telephone (802) 257-7711 REPORT MONTH November SumARY OF OPERATING EXPERIENCES Hiablichts Vermont Yankee operated at 99.3% of rated thermal power for the month. Gross electrical generation was 386,720 MWH capacity.

e or 99.5 % of design electrical Operatino Summary The following is a chronological description of plant operations including other pertinent items of interest for the month.

1 At the beginning of the reporting period the plant was operating at 99.94 of I

rated thermal power.

l 841111 At 0613 hours0.00709 days <br />0.17 hours <br />0.00101 weeks <br />2.332465e-4 months <br /> Reactor Recirc Pump. 8 tripped. (See Unit Shut-downs + Power Reductions).

This necessitated a power reduction.

841111 At 1414 hours0.0164 days <br />0.393 hours <br />0.00234 weeks <br />5.38027e-4 months <br /> a return to full power was initiated.

841116 At 0805 hours0.00932 days <br />0.224 hours <br />0.00133 weeks <br />3.063025e-4 months <br /> Reactor Recirc Pump.A tripped.

(See Unit Shut-l downs + Power Reductions).

This necessitated a power reduction.

841116 At 0852 hours0.00986 days <br />0.237 hours <br />0.00141 weeks <br />3.24186e-4 months <br /> a return to full power was initiated.

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

MSR.F5

VERhiONT YANKEE NUCLEAR POWER CORPORATION P. O. BOX 157 GOVERNOR HUNT ROAD VERNON, VERMONT 05354 VYV 84-620 December 5, 1984 U. S. Nuclear Regulatory Commission Director, Office of Management Information cnd Program Control C shington, D.C.

20555

Dear Sir:

Submitted herewith is the Monthly Statistical Report for the Vermont Yankee Nuclear Power Station for the month of November, 1984.

Very truly yours, VE NT YANKEE NUCLEAR POWER CORPORATION h

h Warren P. Murphy Vice President and Manager of Operations WPM /FJ8:pd/MSR1.1 i i

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