ML19345D658

Monthly Operating Rept for Nov 1980

ML19345D658
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	12/09/1980
From:	Bernard D, Burger F VERMONT YANKEE NUCLEAR POWER CORP.
To:
Shared Package
ML19345D657	List: ML19345D656 ML19345D658
References
NUDOCS 8012160432
Download: ML19345D658 (8)

Text

O VERMONT YANKEE NUCLEAR POWER STATION MONTHLY STATISTICAL REPORT 80-11 FOR THE MONTH OF NOVEMBER , 1980 l

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1 8012160fdA

OPERATING DATA REPCRT DOCKET NO. 50-271 DATE 801209 COMPLETED ST D. Bernard I

TELEPHONE 617-366-8811, X2215 OPERATING STATUS Notes

1. Unit Name: Vermont Yankee

2. Reporting Period: November

3. Licensed Thermal Power (Wt): 1593

4. Nameplace Racing (Gross We): 540

5. Design Electrical Racing (Net We): 514(open)SO4(closed)

6. May h nm Dependable Capacity (Gross We): 535

7. Wmma Dependable Capacity (Net We): 504

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

9. ?over Level to Which Restricted,If Any(Net We):

10. Reasons For Restrictions, If Any:

This Month Tr-to-Date Cumulative

11. Hours In Reporting Period 720.00 8040.00 -

12. Nu=ber Of Hours Re.'ctor Was Critical 0.00 6266.89 57425.28

13. Reactor Reserve Shut town Hours 0.00 0.00 0.00 ,

14. Hours Generator On-Lit.S 0.00 6200.10 55527.88

15. Unit Reserve Shutdown Riurs 0.00 0,00 0,00

16. Cross Thernal Energy Gens raced (WE) 0.00 9347971.00 78572584.00 i 17. Gross Electrical Energy G6'erated(WH) 0.00 3136006.00 26105676.00 i

18. Net Electrical Energy Generc ed(W R) 0.00 2972808.00 24741173.00

19. Unit Service Factor 0.00 77.12 77.30

20. Unic Availability Factor 0.00 77.12 77.30 ,_

l 21. Unit Capacity Factor (Using MDC Net) 0.00 73.36 68.34

22. Unit Capacity Factor (Using DER Net) 0.00 71.94 67.01

23. Unit Forced Cutage Rate 100.00 4.31 6.28

24. Shut:fowr.s Scheduled Over Next 6 Months (Type, Date, and Duration of Each):

Refueling in progress.

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25. If Shut Down At End Of Re. port Period, Esti=ated Date of Startup: Late December j 26. Units In Test Status (?rior to Cc:mnercial Operation): Forecast Achieved l

INITIAL CRITICALITY I

INITIAL ELECTRICITY COMMERCIAL OPERATION 1

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AVERAGE DAILY UNIT POWER LEYEL

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DOCKET NO. 50-271 UNIT Vermont Yankee DATE ,.jp COMPLETED BY F.J. . ger TELEPHONE 802-257-7711.X137 MONTH vov mher DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY P0hTR L3'IL (MWe-Net) (MWe-Net)

1. 0 17. n

2. 0 18. 0

3. 0 19. o

4. 0 20. 0

5. 0 21. 0

> 6. 0 22. 0

7. 0 23, o

8. 0 24. 0 0 25. 0 9.

0 26. 0 10.

0 27. 0 11.

0 28. 0 12.

13. 0 29. n

14. 0 30. n

15. 0 31.

16. O INSTRUCTIONS:

On this format, list the average daily unit power level in MWe-Net for each day in the reporting :onth. Compute to the nearest whole megawatt.

1 UNIT SilUTDOWNS AND POWER REDUCTIONS DOCKET NO 50 271 UNIT NAME Vermont Yankee j REPORT HONTH November '

COMPIETE B F Bur g TELEPIM)NE _ 802-257-7711,X137 j

i 07 m  % ** o N Cause & Corrective No. Date g g g fg License g4 htion to IH 8 Re rtl "* " *" ""

r: u O - - - -

80-21 800926 S 720 C 1 N/A RC FUElXX N/A 80-22 801124 F 162 A* 4* 80-37/IT CG PIPEXX The pipe cracking is believed to have been i

caus<d by ICSCC. The Sweep-0-Let is under-

sang a failure analysis to determine the cause of the cracking.

The Sweep-0-Let and piping are being replaced with materials which meet the 3

intent of Section II of NUREC 0313,Rev.1,

dated October.1979.

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• See LER 80-37/IT 4

i F: Forced Reason: Hethod: Exhthit G- Instructions S: Scheduled A-Equipment Failure (Explain) 1- Manual for Preparation of Data B-Haintenance or Test 2- Manual Scram Entry Sheets for I.icensee C-Refueling 3- Automatic Scram Event Report (I.ER) File D-Regulatory Restriction 4- Other (Explain) (NUREG 0161) 1 E-Operator Training & License Examination F-Administrative 5 Exhibit I - Same Source l G-Operational Error (Explain)

II-Other (Explain) i 7/80

DOCKET NO. 50-271 .

UNIT Vermont Yankee DATE 801209 COMPLETED BY F.J. Burger TELEPHONE 802-257-7711, X137 SAFETY RELATED MAINTENANCE ,

Page 1 of 3

NATURE OF MALFUNCTION ER OR O WACE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION Electrical Penetration Corrective N/A Worn Components Leakage Repaired By Vendor X101A MR 79-837 RilR Valves V10-34A Corrective N/A Set Point Drif t Valves Would Adjusted Torque Switch and 39A HR 80-352 , Not Go Fully Settings Shut Instrument Isolation Corrective N/A Worn Packing Leakage Repacked Valve Valve RV-12B MR 80-508 .

Contaliunent Atmosphere torrective N/A Worn "O" Rings Leakage Replaced "O" Rings Control Valve V16-20-20 , MR 80-975 MSIV 80-D Air Correctfve N/A Worn "0" Rings Air Leakage Replaced "O" Rings Pilot Valve Mk 80-1087 "B" Diesel Generator Corrective N/A Therraocouple Dirt in Selector Cleaned Switch

1. 4 Cylinder Thu ocouple MR 80-1096 Switch Inoperable H.lR Service Water Corrective N/A Nonnal Operation Loose Nut, Tightened and Adjusted Pipe llanger 11-133 MR 80-1129 Excessive Hanger Movement IRM "C" Corrective N/A Failed Preamp Failed IRM Replaced Components MR 80-1145 e

DOCKET No. 50-271 UNIT Vermont Yankee DATE 801209 COMPLETED BY F.J. Burger TELEP110NE 802-257-7711, X137

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SAFETY RELATED MAINTENANCE i

Page 2 of 3 NATURI: OF MALFUNCTION ER OR OW ACF.

EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION RPS/Analor, Trip System Corrective N/A Failed Component Failed Power Replaced Power Supply Power Supply 25-6A 32 MR 80-1152 Supply liCU 06-35 Corrective N/A Failed "0" Rings Leakage Replaced Accumulator MR 80-1172 Fuel Pool Coaling Corrective N/A Not Isolated During Needs Calibra- Calibrated Pressure Indicator MR 80-1173 Ilydro tion PI-69A

. I RilR lleat Exchanger Corrective N/A Failed Sasket Leakage Replaced Casket E-14-1A MR 80-1179 P,cactor Recircula*. ion Preventive N/A N/A N/A Repacked Valve V.lve V2-65A MR 80-1191 RCIC Valve V12-15 Corrective N/A Switch Broken N/A Replaced Switch Torque Switch MR 80 1197 While Preforming Maintenance on Valve Operator "B" Diesel Cencrator Corrective N/A Normal Operation / Faulty Indica- Repaired As Necessary Pyrometers #1 & #6 MR 80-1201 Vibration tion  ;

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DOCKET NO. 50-271 UNIT Vermont Yankee ,

DATE 801209 COMPLETED BY F. J. Burger TELEPHONE 802-257-7711, X137 SAFETY RELATED MAINTENANCE ,

Page 3 of 3 NATURE OF MALFUNCTION ER OR M AGE EQUIPsENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION "A" SBCT Corrective N/A Dirt High AP at Cleaned As Necessary MR 80-1211 Demister MSIV 80-D Corrsctive N/A Normal Operation Dry Bushings Lubricated Bushings MR 80-1216 "A" Diesel Generator Corrective N/A Worn Parts Air Leakage Replaced Valve Air Start System Relief MR 80-1218

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Valve Service Air Valves Preventive N/A N/A N/A Disassembled and Cleaned V72-76 A & B, V72-78 A-D, MR 80-1222 Valves, Replaced Caskets V72-80 A-D, for the Diesel Generator Air Start System "A" & "C" RllR Service Corrective N/A Set Point Drift Leakage Disassembled & Cleaned Water Pump Relief Valves MR 80-1247 Valves, Replaced Parts as Necessary k

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DOCKET No. 50-271

.1 UNIT Ver:nont Yrnkee DATE 801209 COMPLETED BY F. J. Burger TELEPHONE 802-257-7711,X137 REPORT MONTH November

SUMMARY

OF OPERATING EXPERIENCES During the reporting period, the plant was shutdown for refueling and maintenance.

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