ML20054B813

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Monthly Operating Rept for Mar 1982
ML20054B813
Person / Time
Site: Vermont Yankee Entergy icon.png
Issue date: 04/09/1982
From: Burger F
VERMONT YANKEE NUCLEAR POWER CORP.
To:
Shared Package
ML20054B809 List:
References
NUDOCS 8204190222
Download: ML20054B813 (7)
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Text

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VERMONT YANKEE NUCLEAR POWER STATION MONTilLY STATISTICAL REPORT 82-03 FOR Tile MONTil 0F MARCil,1982 8204190222 820409 PDR ADOCK 05000 R

OPERATING DATA REPORT .

DOCKET NO. 50-271 DATE 820409 COMPLETED BY F.J. Burger TELEPHONE (802) 257-7711 ext. 137 OPERATING STATUS Notes

1. Unit Name: Vermont Yankee
2. R porting Period: March 1982
3. Licensed Thermal Power (MWt): 1593
4. Nam: plate Rating (Gross MWe): 540
5. D: sign Electrical Rating (Net MWe): 514 (OC) 504 (CC)
6. Maximum Dependable Capacity (Gross MWe): 535
7. Maximum Dependable Capacity (Net MWe): 504
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):
10. Reasons For Restrictions, If Any:

This Month Yr-to-Date Cumulative

11. Hours In Reporting Period 744.00 2,160.00
12. Number Of Hours Reactor Was Critical 725.66 2,092.33 67,170.48
13. Reactor Reserve Shutdown Hours 0.00 0.00 0.00
14. Hours Generator On-Line 720.00 2,078.18 65,089.37

-5. Unit Reserve Shutdown Hours 0.00 0.00 0.00

16. Gross Thermal Energy Generated (MWH) 1,134,477.00 3,242,821.00 93,158,581.50
17. Gross Electrical Energy Generated (MWH) 385,782.00 1,102,932.00 30,974,903.00
18. Net Electrical Energy Generated (MWH) 369,776.00 1,057,658.00 29,373,944.00
19. Unit Service Factor 96.77 96.21 77.95
20. Unit Availability Factor 96.77 96.21 77.95
21. Unit Capacity Factor (Using MDC Net) 98.61 97.15 69.80
22. Unit Capacity Factor (Using DER Net) 96.69 95.26 68.44
23. Unit Forced Outage Rate 3.23 3.79 6.71
24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):
25. If Shut Down At End Of Report Period, Estimated Date of Startup:
26. Units In Test Status (Prior to Commercial Operation): Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY CCMMERCIAL OPERATION

1 j AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-271 UNIT Vermont Yankee i

I DATE 820409 f COMPLETED BY F.J. Burger

! TELEPHONE (802) 257-7711 ext. 137 MONTH March 1982 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 520 17, 519 1.

2. 520 18. 519 521 19, 520
3.

520 20. 519 4.

521 21. 509 5.

521 22. 520

6.

1 520 23. 520 7.

520 24. 520 8.

521 25. 519 9.

520 26. 519 10.

520 27. 520 f 11.

519 28. 519 12.

' 519

13. 416 29.

448

14. 515 30.

19

15. 519 31.
16. 520 ,

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.

_ . . _ _ _ _ . _ - _ _ _ _ _ _ _ _ _ _ _ . _ . _ _ _ . _ _ . _ _ _ _ . _ _ _ _ _ __ __ _ _.__._-__.1 - _ _ _ _ . - , _ _ _ . _ ~ _ _ _ _ _ _ _ . _ _ _ _

I UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO 50-271 UNIT NAME Vermont Yankee i

i REPORT MONTil March 1982 DATE 820409 COMPLETED BY F.J. Burger i

TELEP110NE (802) 257-7711 ext. 137 l

r l

$12 m o o y Cause & Corrective l No. Date j  ;; y g ;j u License e g4 Report # 0 reven ecurrence a

C3 DC Gb V3 u} o hO ,

, a 82-05 820313 S 0 B 4 N/A RB CONROD Power reduction for a control rod pattern (Power exchange.

Reduct.)

82-06 820330 F 24 A 3 N/A IIB INSTRU Reactor scrammed on high flux in response I

to a pressure spike which originated in th :

main turbine control system. An investi-i gation revealed that a turbine control oil system filter was loosened to the extent

' that unfiltered oil could have been cycled '

back into the system. This can result in i

sluggish system response and pressure spik
:

i The filter was replaced, the system was cleaned and placed back into operation.

a i

1 2 4 Reason:

i F: Forced 3' Method:

  • Exhibit G- Instructions j S: Scheduled A-Equipment Failure (Explain) 1- Manual for Preparation of Data B-Maintenance or Test 2- Mar,ual Scram Entry Sheets for Licensee 1

i C-Refueling 3- Automatic Scram Event Report (LER) File D-Regulatory Restriction 4- Other (Explain) (NUREG 0161) j E-Operator Training & License Examination F-Administrative 5 Exhibit I - Same Source G-Operational Error (Explain)

II-Other (Explain) i 7/80 - _ _

DOCKET NO. 50-271 UNIT Vermont Yankee DATE 820409 COMPLETED BY F.J. Burger TELEP110NE (802) 257-7711 ext.1 SAFETY RELATED MAINTENANCE 1 of 2 NATURE OF HALFUNCTION LER OR OUTAGE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION RWCU Pump P49-1A Corrective N/A Normal Wear Seal Leakage Replaced Seal

  • Mechanical Seal MR 81-0342 81-0651 82-0257 RWCU Non Regenerative lleat Corrective N/A IIead Warped llead Seal Repaired by Furmanite Exchanger E-16-1A MR 81-1547 Leakage Fuel Oil Valve F014-A Corrective N/A Worn Packing Leakage Adjusted Packing MR 82-0244 UPS-1A Corrective LER 82-05/3L Failed Components Unit Inoperable Replaced Parts as MR 82-0247 Necessary Service Water Pump Corrective N/A Worn Packing Leakage Adjusted Packing P7-1A MR 82-0251 RilR Service Water Valve Corrective N/A Worn Packing Leakage Repacked Valve V70-89B MR 82-0266 RWCU Valve V12-27A Corrective N/A Worn Packing Leakage Adjusted Packing MR 82-0271 .

"A" RPS MC Set Corrective N/A Failed Parts Output Breaker Replaced Parts as MR 82-0278 Trips. Necessary.

DOCKET NO. 50-271 UNIT Vermont Yankee DATE 820409 COMPLETED BY F.J. Burger TELEP110NE (802) 257-7711 ext. 13 SAFETY RELATED MAINTENANCE 2 of 2 NATURE OF MALFUNCTION LER OR OUTAGE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION SJAE Off Gas Radiation Corrective Being Evaluated Failed Parts Reading Low Replaced Parts as Monitor FR 82-0279 Necessary "B" SBGT Preventive N/A N/A N/A Remove charcoal Test MR 82-0301 Cell llCU 14-23 Scram Pilot Valve Corrective N/A Worn Parts Air Leakage Replaced "0" Rings (V-117) MR 82-0320 "B" UPS Corrective N/A Failed Parts iUnit Degraded Replaced Parts as MR 82-0335 But Operable Necessary llPCI Steam Line D/P Test Corrective N/A Worn Parts Leakage Replaced Transmitter Transmitter MR 82-0339

~

DOCKET NO. 50-27'l' UNIT Vermont Yankee DATE 820409 COMPLETED BY F.J. Burger TELEPHONE (802) 257-7711 ext. 137 REPORT MONTH March 1982

SUMMARY

OF OPERATING EXPERIENCES Highlights Vermont Yankee operated at 95.72% of rated thermal power for the month.

Gross electrical generation was 385,782 MWH, or 96.02% of design electrical capacity.

Operating Summary 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 99.9% of rated thermal power.

820313 At 0030 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br /> a power reduction was initiated for a control rod pattern exchange.

At 0404 hours0.00468 days <br />0.112 hours <br />6.679894e-4 weeks <br />1.53722e-4 months <br /> a return to full power was started.

820330 At 2040 hours0.0236 days <br />0.567 hours <br />0.00337 weeks <br />7.7622e-4 months <br /> the reactor scrammed on high flux (see unit shutdowns and power reductions).

820331 At 1328 hours0.0154 days <br />0.369 hours <br />0.0022 weeks <br />5.05304e-4 months <br /> the plant commenced a reactor startup.

L At 2040 hours0.0236 days <br />0.567 hours <br />0.00337 weeks <br />7.7622e-4 months <br /> the main turbine generator was phased onto the grid.

At the end of the reporting period the plant was operating at 39% of rated thermal i power. A power ascension was in progress, l

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