ML20009C163

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Monthly Operating Rept for June 1981
ML20009C163
Person / Time
Site: Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date: 07/08/1981
From: Burger F
VERMONT YANKEE NUCLEAR POWER CORP.
To:
Shared Package
ML20009C162 List:
References
NUDOCS 8107200335
Download: ML20009C163 (7)
v • d • e


Text

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VERMONT YANKEE NUCLEAR POWER STATION MONTilLY STATISTICAL REPORT 81-06 FOR TIIE MONit! 0F JUNE, 1981 I

1 8107200335 810710 PDR ADOCK 05000271 R

PDR

OPERATING DATA REPORT DOCKET No. 50-271 DATE 81070R COMPLETED BY F.3.

Bu-e py TELEPHONE (802)257-;711 Ext. 137 OPERATING STATUS Notes L. Unit Name:

Vermont Yankee

2. Raporting Period:

June

3. Licensed Thermal Pcwer(HWt):

1593

4. Namnplace Rating (Gross MWe):

540 5.' Dasign Electrical Rating (Net MWe): 514(oc) 504(cc)

5. Maximum Dependable Capacity (Gross MRe):

535

7. Maximum Dependable Capacity (Net MRe):

504

3. If Changes occur in Capacity Ratings (Ictn.a Number 3 Through 7)Since Last Report, Give Reasons'
9. Power Level to Which Restricted,If Any(Net MWe):
3. Reasons For Restrictions, If Any:

This Month Yr-to-Date Cumulative

1. Hours In Reportire Period 720.00

_ 3 343.00

2. Number Of Hours Reactor Was Critical 720.00 4,310.12 61.845.90
3. Reactor Reserve Shutdown Hours 0.00 0.00 0.00 __
4. Hours Generator On-Line 720.00 4.252.05-59.8s1.61
5. Unit Reserve Shutdown Hours 0.00 0.00, 0.00

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6. Gross Thcrmal Energy Generated (MWH) 1,141,936.50 6,533,764.00 85.137.281.00
7. Gross Electrical Energy Generated (MWH) 372,926.00 2.194.666.00 28.307.511.00 1
3. Net Electrical Energy Generated (MWH) 350.488.00 2.094.144.00 9A 911 o99 nn 3

Unit Service Factor 100.0G 37.91 77.81

0. Unit Availability Factor 100.00 97.91 77.81
1. Unic Capacity Factor (Using MDC Net) 96.,59 95.68 69.24
2. Unit Capacity Factor (Using DER Net) 94.71 93.82 67.89 7
3. Unit Forced Outage Rate 0.00 2.09 6.96
4. Shutdowns Scheduled Over Next 6 Months (lype, Date, and Duration of Each):

Refueling outage scheduled to start October 17. 1981 nnd r en H niin e seven weeks.

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5. If Shut Doun At End Of Report Period, Estimated Date of Startup:
5. Units In Test Status (Prior to Coc=ercial Operation):

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMB'ERCIAL OPERATION

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.

50-271 UNIT Vermont Yankee DATE 810708 COMPLETED BY F.J. Burger TELEPHONE (802)257-7711 Ext. 137 MONTH June DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1.

492 17.

484 2.

492 18.

488 3.

491 19.

485 i

4 486 20.

486 5.

f. 88 21 477 6.

479 22.

484 7.-

490 23.

487 8.

492 24.

490 9.

488 25.

485 lo.

469 26.

488 11.

489

21. _,

491 12.

490 25.

482 13.

489 29.

489 i

i 14.

479 30.

488 15.

485 31.

16, 479 INSTRUCTIONS:

i On this format, list the average d. lily unit power level in M a-Net for each day in the reporting month.

Compute to the nearest whole :2gawatt.

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DOCKET NO.

50-271 UNIT Vermont Yanke2 DATE 810708 COMPLETED BY F.J. Burger TELEP110NI (802)257-7711 Ext. 137

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SAFETY RELATED MAINTENANCE NATURE OF LER OR OUTAGE MALFUNCTION EQUIPMENi' MAINTENANCE NUMBER CAUSE RESI'LT CORRECTIVE ACTION Containment Spray Manual Corrective N/A Worn Parts Spurious Alarms Keplaced Switch Contac Override Key Lock Switch MR 81-638 Blocks For The "BD" RilR Loop i

N/A(1) lireake r s'o t The "B"

RllR Corrective Wern Parts

' Breaker Would Service Water Pump MR 81-6+2 Not Stay Closed Replaced Worn Bushings "B" RBCCW lleat Exchanger Corrective N/A Unknown Tube Leakage Flugged Tubes MR 81-655 Temperature Indicator Corrective N/A Instrument Drift Out Of Cal-T1-VC 4A MR 81-663 lbration Replaced Indicator "A" RBCCW Heat Exchanger Corrective N/A Unknown Tube Leakage Plugged Tubes MR 81-687 RCIC Valve V13-18 Corrective N/A Torque Switch Valve Would Rtzet Torque Switch MR 81-699 Out Of Adjust-Open Only When ment control Switch Was lleld In The Oren Position RCIC Trip / Throttle Valve Preventative N/A Dirt /Corrcsion Slow Actuation Disassembled, Cleaned, MR 81-704

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and Replaced Parts As Necessary

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DOCKET No.

50-271 UNIT Vermont Tr.nkee DATE 810708

"#E #

COMPLETED BY TELEP110NE (802)257-7711 Ext. 137 SAFETY RELATED MAINTENAFCE NATURE OF MALFUNCTION LER OR OUTAGE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION RWCU lleat Exchanger E-15-1A Corrective LER Unknown Vent Line Re-Replaced Parts As MR 81-722 81-16/3L ducer Cracked Necessary And Leaking

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Service Water Pump P7--1A Corrective N/A Normal Wear Packing Gland Adjusted Packing Gland MR 81-737 Leakage U)This MR documents the bre.tker repair. MR 8) -640 documented t lie installation of t be spare breaker uhen this breaker failed to close (LER 81-1 5/3L) and was reported in the May St fitistical Report.

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DOCKET NO.

50-271 UNIT Vermont Yankee l

DATE 810708 COMPLETED BY F.J. Burster TELEPHONE (802)257-7711 Ext. 137 REPORT MONTH June I

SUh%iRY 0F OPERATING EXPERIENCES Highlfthts Vermont Yankee operated at 99.56% of rated thermal power for the month.

I Gross electrical generation was 372,926 MW, or 95.91%of design electrical j

capacity.

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Operating Summarv j

The following is a chronological description of plant operations including t

. other pertinent items of interest for the mouth:

1 3

6/1/81 At the beginning of the reporting period the plant was operating at 99.7% of rated thermal power.

l 6/30/81 At the and of the reportir.g period the plant was operating at 99.8% of rated thermal power.

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