ML20082T127

Monthly Operating Rept for Nov 1983

ML20082T127
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	12/09/1983
From:	Burger F, Murphy W VERMONT YANKEE NUCLEAR POWER CORP.
To:	NRC
References
NUDOCS 8312150169
Download: ML20082T127 (7)

Text

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s OPERATING DATA REPORT DOCKET NO.

sn-971 DATE R119no COMPLETED BY p.

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n,, r ge r TELEPHCNE (an919s9 7711 OPERATING STATUS Notes

1. Unit Name:

Vermont Yankee

2. Reporting Period:

November

3. Licensed Thermal Power (FMt):

1593

4. Nameplate Rating (Gross FMe):

540

5. Design Electrical Rating (Net MWe): 514 (Oc) 904 (CC)

6. Maximum Dependable Capacity (Gross MWe):

535

7. Maximum Dependable Capacity (Net FMe):

504

8. If Changes occur in Capacity Ratings (Items Number 3 Through 7)Since Last Report, Give Reasons:

N/A

9. Power Level to Which Restricted.If Any(Net FMe):

n/A

10. Reasons For Restrictions, If Any:

N/A This Month Yr-to-Date cumulative

11. Hours In Reporting Period 77n nn 8016.00

12. Number Of Hours Reactor Was Critical 720.00 5411.66 7A osa nn

13. Reactor Reserve Shutdown Hours 0.00 0.00 0.00

14. Hours Generator On-Line 720,00 53'.89 76,748.58

15. Unit Reserve Shutdown Hours 0.00 0.00 0.00

16. Cross Thermal Energy Generated (MWH) 1,131.882.00 7.954.714.00 110.993.956.50

17. Gross Electrical Energy Generated (MWH) 385.371.00 7.61s 67s nn 36.896.822.00

18. Net Electrical Energy Generated (MWH) 17n nna nn nn 14 oA4.69n on 7, r. o r., u o

19. Unit Service Factor 100.00 66.4R 78.22

20. Unit Availability Factor 100.no 66.48 7a_99

21. Unit Capacity Factor (Using MDC Net) 101.00 61.7a

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22. Unit Capacity Factor (Using DER Net) 166.66 cn 53 Aq 17

23. Unit Forced Outage Rate 0.00 19.85 7.44

24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of 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):

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION 8312150169 831209 PDR ADOCK 05000271 L\\

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.

50-271 UNIT-Vermone Yankee DATE-831209 COMPLETED BY F. J. Bruner TELEPHONE (A02) 257-7711 MONTH November DAY-AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL

-(MWe-Net)

(MWe-Net) 1.

522-'

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521 18.

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son INSTkUCTIONS:

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Onithis format, list th': average' daily unit. power level in MWe-Net for each day in e

'the reporting month. Compute to the nearest whole megawatt.

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UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO s0 271 UNIT NAME vermont Yankee REPORT MONTH November DATE 831209 COMPLETED BY F. J. Burger TELEPHONE (802) 257-7711 S 'S No.

Date j

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7; u License Cause & Corrective m

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go go Action to po t#

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83-12 831105 S

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4 N/A RB CONROD Power reduction for control rod pattern Power exchange.

Reductio 1 83-13 831117 F

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4 LER CE VALV0P Power Reduction to repair inoperative Power 83-32/IP Valve (RCIC V13-20). Valve motor Reduction operator failed because the torque switch contrcts were loose.

Re-placed motor and repaired torque switch.

1 2

3 4

F: Forced Reason:

Method:

Exhibit C-Instructions S: Scheduled A-Equipment Failure (Explain) 1-Manual for Preparation of Data B-Maintenance or Test 2-Manual Scram Entry Sheets for Licensee C-Refueling 3-Automatic Scram Event Report (LER) File D-Regulatory Restriction 4-Cther (Explain)

(NUREG 0161)

E-Operator Training & License Examination F-Administrative Exhibit I - Same Source G-Operational Error (Explain)

H-Other (Explain) 7/80

P DOCKET NO.

5^-271 UNIT Vera,nt Yankee DATE 831209 COMPLETED BY Fred Burner TELEPHONE (802) 257-7711

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4 SAFETY RELATED MAINTENANCE NATURE OF MALFUNCTION LER OR OU' FACE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION MSIV V2-86A Corrective LER Loose Alr Bleed Closing Time Tightened Plug and MR 83-2091 83-30/3L Plug In Valve.

Too Fast Readjusted Closing Speed Actuator 1

i RCIC Valve V13-20 Corrective LER Loose Contacts on Valve Replaced Motor and' 4

l MR 83-2146 83-32/IP Torque Switch Inoperative Repaired Torque Switch l

1 HPCI Valve V23-20 Corrective LER Loose Spring on Loss of Valve Repaired Limit Switch MR 83r2148 83-32/IP Close Light Limit Position and Cleaned Contacts.

Switch and Dirt Indication

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On Contacts

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DOCKET NO.

50-271 UNIT Vermont' Yankee DATE 831209

. COMPLETED BY F. J. Burger TELEPHONE (802) 257-7711 S-REPORT MONTH November

SUMMARY

OF OPERATING EXPERIENCES' f'

Highlights Vermont Yankee operated at 98.68% of rated thermal power for the month.

- Cross electrical generation was385,371 MWH, or 99.12%of design electrical' capacity.'

' Operating Summarv The following is'a chronological descriptionLof plant operations including other pertinent items of: interest for the month:

At the beginning of the. reporting period the -plant was operating at 99.95% -

of Rated Thermal' Power.

831105' At 0545 hrs a power reduction was initiated for-a' control rod pattern exchange.

831105~;At 1310 hrs a-return to full power was initiated.

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. 831117 At 1005 hrs a power reduction was_ initiated to facilitate the repair of the. valve operator on RCIC Valve V13-20.

See Unit Shutdowns and Power Reductions.

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831117 At ~1450 hrs a _ return to full power was initiated.

- At the end of _the reporting period the plant was operating at 99.88% of

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Rated Thermal Power.

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9

5 VERMONT YANKEE NUCLEAR POWER CORPORATION P. O. BOX 157 GOVERNOR HUNT ROAD VERNON, VERMONT 05354 December 9, 1983 U.S. Nuclear Regulatory Commission Director, Office of Management Information and Program Control Washington, DC 20555

Dear. Sir:

Submitted herewith is the Monthly Statistical Report for the Vermont Yankee Power Station for the month of November, 1983.

Very truly yours, VERMONT YANY.EE NUCLEAR POWER CORP.

!" ^

m Warren P Murphy Vice President and Manager of Operations FJB/pt l

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VERMONTiANKEENUCLEARPOWERSTATION-MONTHLY ~ STATISTICAL-REPORT 83-11 FOR THE MONTH OF. NOVEMBER,-1983

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