ML20055A751

Monthly Operating Rept for June 1982

ML20055A751
Person / Time
Site:	Vermont Yankee
Issue date:	07/09/1982
From:	Burger F VERMONT YANKEE NUCLEAR POWER CORP.
To:
Shared Package
ML20055A748	List: ML20055A747 ML20055A751
References
NUDOCS 8207190405
Download: ML20055A751 (7)

Text

8 6 VERMONT YANKEE NUCLEAR POWER STATION MONTHLY STATISTICAL REPORT 82-06 FOR THE MONTH OF JUNE 1982 l

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8207190405 820709 PDR ADOCK 05000271 R PDR

1 OPERATING DATA REPORT DOCKET NO. 50-271 DATE 820709 COMPLETED BY F.J. Burger TELEPHONE (802)257-7711 ext. 137 OPERATING STATUS Notes

1. Unit Name: vormnne ynnkoo

2. Raporting Period: June

3. Licensed Thermal Power (MWt): 1s93

4. Namsplate Rating (Gross MWe): 540

! 5. Design 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:

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9. Powar Level to Which Restricted,If Any(Net MRe):

.0. Reasons For Restrictions, If Any: __

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i This Month Yr-to-Dace Cumulative Ll. Hours In Reporting Period 720.00 4.343.00 L2. Number Of Hours Reactor Was Critical 672.12 4,^708. 33 69,286.48 L3. Raactor Reserve Shutdown Hours ,

0.00 0.00, 0.00

!4. Hours Generator On-Line 661.05 4.170 93 67.191.12

'.5. Unit Reserve Shutdown Hours 0.00 0.00 0.00 L6. Cross Thermal Energy Generated (NNH) 1.028.422.00 6.527.719.00 oA AA1 Aoo en L7. Gross Electrical Energy Generated (MWH) 334,421.00- 2,197,741.00 32,069.712.00

{L8. Net Electrical Energy Generated (MWH)~ 314.110.00 2.097.910.00 in ala toc nn

L9. Unit Service Factor 91.81 96.25 78.42

10. Unit Availability Factor -

91.81 96.25 78.42

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, 21. Unit Capacity Factor (Using MDC Net) 86.56 95.84 70.61

22. Unit Capacity Factor (Using DER [ Net) 84.88 93.98 69.06

23. Unit Forced Outage Rate 8.19 3.75 6.62

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

NONE f

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 l COMMERCIAL OPERATION

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-271 s

UNIT Vermont Ynnkee DATE 820709 COMPLETED BY F. J. Burger

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TELEPHONE (802)257-7711 Sxt. 137 MONTH Jnno DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL- s (MWe-Net) (MWe-Net)

1. 479 17. An m

2. 481 18. '488 ,,

3. 488 19. 487

4. 487 20. 480

5. 488 21. 489

6. 481 22, 489 489 23. 487 7.

276 24, 490 8.

'N' 0 25. 488 s 9.

0 26. 486 1 10.

242 27, 480 11.

421 483 28.

486 83 29, 14, 30.

489 --

15. 31.

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16. 485 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.

s s

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UNIT SilUTDOWNS AND POWER REDUCTIONS DOCKET NO _ 50-271 UNIT NAME Vermont Yankee June A 820709 REPORT MONTil COMPLETED BY F. J. Burner TELEP110NE (802)257-7711 ext. 137 I

a cm m Su u No.

• Date x: OO "c d8 License se E.n ause & Corrective

! $ NS O l! U O Event 3$ 8$ ^' ' "

" even ecurrence

$2 U05 o

E x T5 $ $

em Report # $$

m 8'$

. h 8

82-09 820608 F 58.95 A 2 N/A AA BLOWER Plant manually shutdown to investigate increasing drywell temperature. The increase was due to the mechanical failure of two of the four drywell air g cooling and recirculation units. The j

failed parts were repaired / replaced.

Analysis of event continuing.

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' F: Forced Reason: Method: 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 Licensee C-Refueling 3- Automatic Scram Event Report (LER) File D-Regulatory Restriction 4- Other (Explain) (NUREG 0161)

E-Operator Training & License Examination 5

F-Administrative Exhibit I - Same Source C-Operational Error (Explain)

II-Other (Explain) 7/80

DOCKET NO. 50-271 UNIT Vermont Yankee DATE 820709 COMPLETED BY F. J. Burger TELEP110NE (802)257-7711 ext. 137 SAFETY RELATED MAINTENANCE 1 of 2 NATURE OF MALFUNCTION ER OR OUTAGE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION TRM "D" CORRECTIVE N/A CABLE / CONNECTOR IRM INOPERABLE REPAIRED CONNECTION MR81-1497 INTERFACE BROKEN 81-1623 .' ,

82-0133 ilPCI PRESSURE SWITCil CORRECTIVE N/A NORMAL WEAR SEAT LEAKAGE REPLACED VALVES PS-23-68B, ISOLATION AND MR82-0304 TEST VALVES 82-0713 RWCU REMOVABLE SPOOL PIEC ' CORRECTIVE N/A FAILED GASKET LEAKAGE REPLACED GASKET MR82-0422 "A" UPS COOLER CORRECTIVE N/A NORMAL OPERATION LEAKAGE REPAIRED BY BRAZING MR82-0528 (VIBRATION)

FUEL POOL COOLING CORRECTIVE N/A NORMAL WEAR OIL SEAL LEAKAGE REPLACED SEAL PUMP P9-1A MR82-0560 RCIC REMOTE TRIP CORRECTIVE N/A DIRT SLUGGISil OPER- DISASSEMBLED AND CLEANED MR82-0588 ATION RilR SERVICE WATER CORRECTIVE LER WORT! PARTS BREAKER TRIPS ON REPLACED PARTS PUMP P8-1A BREAKER MR82-0641 82-10/3L PlafP START

DOCKET NO. 50-271 UNIT Vermont Yankee DATE 820709 COMPLETED BY F. J. Burner TELEP110NE (802)257-7711 ext. 137 ',

SAFETY RELATED MAINTENANCE 2 of 2 NATURE OF MALFUNCTION LER OR OUTAGE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION "B" REACTOR BUILDING CORRECTIVE N/A FAILED PARTS INOPERABLE REPLACED UNIT VENT MONITOR INDICATION MR82-0645 TRIP UNIT , , ,,

RilR SERVICE WATER PREVENTIVE LER WORN / FRAYED WIRING N/A REPLACED WIRE PUMP P8-1D BRE!.KER MR82-0672 82-12/3L PCIS RELAY 16A-K7D PREVENTIVE N/A AGE CASE CRACKED REPLACED RELAY MR82-0721 SERVICE WATER PUMP CORRECTIVE N/A NORMAL WEAR LEAKAGE ADJUSTED PACKING P7-1A MR82-0724 RWCU llEAT.EXCilANGER CORRECTIVE N/A UNKNOWN LEAKAGE PLUGGED 110LE E-15-1C CONSTRUCTION MR82-0747 LEAK OFF RCIC VALVE V13-48 CORRECTIVE N/A NORMAL WEAR LEAKAGE ADJUSTED PACKING PACKING MR82-0748 FUEL POOL COOLING CORRECTIVE N/A NORMAL WEAR LEAKAGE REPLACED PACKING PUMP P9-1A MR82 0759 RWCU VALVE V12-18 CORRECTIVE LER FAILED PARTS BREAKER TRIPPED REPLACED MOTOR OF MOTOR OPERATOR MR82-0763 82-14/3L ON START MOTOR OPERATOR PCIS VALVES V16-20-20 CORRECTIVE LER

& V16-20-22B DIRT IN SOLENOID VALVES WOULD DISASSEMBLED & CLEANED MR82-0784 82-15/1T VALVES NOT SilUT SOLENGID VALVES

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DOCKET NO. 50-271 UNIT Vermont Yankee DATE 820709 COMPLETED BY F. J. Burger TELEPHONE (802)257-7711 ext. 137 i

REPORT MONTH June

SUMMARY

OF OPERATING EXPERIENCES Highlights Vermont Yankee operated at 89.66% of rated thermal power for the month.

Gross electrical generation was 334,421 MWH or 86.01%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%

of rated thermal power.

820608 At 1212 hrs.a plant shutdown was initiated to investigate increasing drywell temperature. See unit shutdowns &. power seductions.

At 1658 the generator was taken off the grid.

At 1729 hrs. the reactor was manually scrammed.

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820610 At 1644 hrs, a reactor start up was initiated.

At 1722 the reactor was critical 820611 At 0355 hrs. the generator was phased on to the grid.

At the end of the reporting period, the plant was operating at 99% of rated thermal power.

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