ML19290E886

Monthly Operating Rept for Feb 1980

ML19290E886
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	03/12/1980
From:	Beers F VERMONT YANKEE NUCLEAR POWER CORP.
To:
Shared Package
ML19290E885	List: ML19290E884 ML19290E886
References
NUDOCS 8003170265
Download: ML19290E886 (8)

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VERMONT YANKEE NUCLEAR" POWER STATION MONTHLY STATISTICAL REPORT 80-02 FOR THE MONTH OF FEBRUARY, 1980 6

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OPERATING DATA REPORT DOCKET NO. 50-271 DATE 800312 COMPLETED BY rrnogen TELEPHONE 617 166-9011 X2215 OPERATING STATUS Vermont Yankee Notes

1. Unit Name:

2. Reporting Period: r ak - , v.. 10an

3. Licensed Thermal Power (SIWt): 1.593

4. Nameplate Rating (Gross $1We): 540

5. Design Electrical Rating (Net 31We): 514(open) 504(closed)

6. Afaximum Dependable Capacity (Gross SIWE): 535

7. Sfaximum Dependable Capacity (Net StWe): 514

8. If Changes Occur in Capacity Ratings (!tems Number 3 Through 7) Since Last Report. Give Reasons:

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9. Power Level To Which Restricted. !f Any (Net 31We):

10. Reasons For Restrictions.If Any:

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This 3fonth Yr..to.Date Cumulative .

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11. Hours !n Reportin2 Period 696' 1,440

12. Number Of Hours Reactor Was Critica] 611.75 1,334.8 52.493.19

13. Reacto,- Reserve Shutdown Hours 0 0 0 14, Hours Generator On.Line 600.5 1.310.6 , 50,638.38

15. Unit Reserve Shutdown Hours 0 0 0

16. Gross Thermal Energy Generated (31Wil) 414 96A.5 1.065.965 71.190.578  ;

17. Gross Electrical Energy Generated (StWH) 120.755 ...

672.576 23.642,246

18. Net Electrical Energy Generated (31WH) 307.911 645,431 22,413,816 86.3 77.h

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19. Unit Service Factor _

91

20. Unit Availability Factor 86.1 91 77.6

21. Unit Capacity Factor (Using 3!DC Net)

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87 8 88.9 68.2

22. Unit Capacity Factor (Using DER Net) 86 87.2 66.8

23. Unit Forced Outa;e Rate 0 2.0 6.4

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24. Shutdowns Scheduled Over Next 6 Stonths (Type.Date.and Di. ration of Each):

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25. If Shut Down At End Of Report Period. Estimated Date of Startup:

26. Units in Test Status (Prior to Commercial Operation): Forecast Achieved

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INITIAL CRITICA LITY -

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CO313t ERCIAL OPERATION

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AVERAGE DAILY UNIT POWER LEVEL

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DOCKET NO. 50-271

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UNIT Ve ront Yankee DATE 800312 COMPLETED BY ' r "ae" TELEPHONE 617-366-9011 X2215 Februarv, 1980 MONT11 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (51We-Net)

0 37 514 2 0 18 9'6 3 0 19 526 4 0.7 20 524 5 356 21 525

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6 436 526

, 22 k, 7 521' 23 526

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8 518 24 5'14 9 511 525 25 10 525 26 11 526 27 526 12 5'S 28 526 13 526 29 524 14 526 30 15 526 33 16 977

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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.

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(9/77)

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DOCKET NO. 50-271 .

UNITSilOTDOWNS AND POWER REDUCTIONS UNIT NAhlE Vermont Yankee DATE 80011' REPORT hl0NTil February, 1980 COhfPLETED llY F P Recrs TELEPIIONE 617-166-9011 X2215 "L . -

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4 Licensee c -*,, c ,, Cause & Curreceive No. Date o 3g  ;; jg5 H;

Event nT $."'8 Action to dE 5 #0 jdg Report y

}u Prevent Itecurrence 80-6 800201 S 95.5 D 1 N/A ZZ ZZ Shutdown for modifications as required (cont by NUREG 0578. -

80-7 800204 S 0 H 4 N/A RA CONROD Turbine surveillance and control rod (Power pattern adjustment Reducti an) 80-8 800224 S 0 11 4 N/A RA CONROD Turbine surveillance and control rod (Power pattern adjustment Reducti un)

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d i 2 3 4 F Fo<s ed Iteason: kleiliod:

S: St heduled Exhibit G -Insituctions A. Equipment Failure (Explain) 1-htanual for Picparation of Daia B hlaintenance niTest 7 hianual Scrain. Enity Shecis for I.ieensec

, C Itefueling 3-Automatic Scraan. Event Itepose (Llitt) File INultt'.G- -

D.Itegulatosy Itcstriction 4-Osher (Explain) 0161) li Opciator Training & License Examination F Aihninisisaiive $

G Opesational I.isor (lixplain) lialubit I Same Source P8/17) 11 Othes Ilimpi.ain)

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DOCKET NO. 50-271

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UNIT Ve rmont Yankee DATE 800312 COI4PLETED BY F.C. Beers TELEP110NE 617-366-9011 X2215 SAFETY RELATED flAINTENANCE FEBRUARY, 1980 PAGE 1 OF 3 NATUllE OF LER OR OtHAGE -

HALFUNCTION EQUIPfll!NT flAINTENANCE NUf-!BER CAUSE ItESULT CORItECTIVE ACTION "B" Diesel Jacket Cool- Corrective N/A Failed gasket Leakage Replaced gasket ant Outlet at #8 MR 79-1128 Cylinder RCIC Trip Throttle Corrective N/A Dirt Sluggish actuation Disassembled & Cleaned Valve MR 80-0007 "B" RWCU Pump Suction Corrective N/A Worn packing Leakage Adjusted packing Valve V12-19B HR 80-0035 .

PCAC Valves SB16-19-6&7 Preventive N/A Upgrade temper- More reliable Install new Nordel seats MR 80-0059 ature rating of operation

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valve Temperature Indication Corrective N/A Failed selector Faulty temperature Replaced switch

, op .'.'B" , Diesel Cenerator MR 80-0077 switch on instro - reading

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ment Main Steam Valve V60-95EC Corractive N/A Worn packing Leakage Repacked valve MR 80-0088 The rmocouple for SLC Corrective N/A Unknown - pos- Thermocouple loose Tightened thermocouple &

Temperature Switch TS- MR 80-0110 sibly impact in wall, seal repaired seal tight 11-51 tight broken Recirculation Flow Corrective N/A Failed component s Failed transmitter Replaced transmitter Transmitter FT2-110A MR 80-0120

DOCKET NO. so_77i

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UNIT vernnne ynntnn DATE 800117 C0!1PLETED 11Y F.c. Beers ,

TELEPl!ONE 617-166-9011 x?215 SAFETY RELATED !!AINTENAllCE FEBRUARY, 1980 PACE 2.0F 3 flATUltE OF LER OR OLIfAGE 11ALFUNCT10N EQUIPflENT MAINTENANCE NUllBER CAUSE ItESULT C0llRECTIVE ACTION Main Steam Safety / Relief Corrective N/A Degraded valve Back leakage Replaced. valves Valves Instrument Air MR 80-122 seats through valve Check Valves V105-37A4D Shock Suppressor RR-2 Corrective LER 80-8/3L Unknown-No obvious Loss of fluid Rebuilt shock suppressor MR 80-0130 seal degradation Main Steam Safety / Relief Corrective N/A Worn parts Air leakage Replaced solenoids Valve. Solenoids MR 80-0131 .

Containment Atmos. Samp1- Corrective N/A Position. indicator Loss of position Adjusted position indi-ing Valve V109-76B MR 80-0134 on valve out of indication cator adj ustment R"9 Valve V10-65B Corrective N/A Worn packing Leakage Adjusted packing MR 80-0140

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Annunciator Relay K51A Preventive N/A Worn parts Relay odoriferous Replaced relay coil MR 80-0143 RWCU Valve PCV-12-55 Corrective N/A Dirt on seat Valve leakage Cycled valve MR 80-0151 Main Steam Valve V60-31 Corrective N/A Dirt on seat Valve leakage Cycled velve MR 80-0170 IRM-A Corrective N/A Loose retaining Inoperable Reset Tightened screws MR 80-0171 Screw Switch

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DOCKET NO. 50-271 -

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UNIT Vermont Yankee DATE 800312 C0!!PLETED liY F. C. Beers TELEPliONE 617-366-9011 X2215 SAFETY RELATED !!AINTENANCE FEBRUARY, 1980 PACE 3 0F 3 NATUlth OF LER Olt OLII' AGE  !!ALFUNCTION EQUIPflliNT P!AllDENANCE NU!! Bell CAUSE I!ESULT C0ltitECTIVE ACTION

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R.CIC Steam Line Flange Corrective N/A Failed gasket Leakage Replaced gasket MR 80-0177 "B" Diesel Fuel Oil Corrective , N/A Clogged filter liigh differential Changed filter Filter MR 80-0236 Pressure llPCI EGR Corrective LER 80-7/3L Unknown Sticky operation Replaced EGR MR 80-0243

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SBGT Train A Corrective N/A Saturated filter Loss of filter Replaced filter MR 80-0251 efficiency RHR SW Pump P8-1C Switch Corrective Broken wire on Pump could not be Replaced breaker with Cear MR 80-0258 closing coil be started remotel / spare repaired wiring

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DOCKET NO. 50-271 UNIT vo -, y , ,i, n ,

DATE anou s COMPLETED BY F. c. 9nars TELEPHONE 617-366-9011 X2215 REPORT MONTH vgwr,3,,v. logo

SUMMARY

OF OPERATING EXPERIENCES Highlights Vermont Yankee operated at 84.3% of rated thermal power for the month.

Gross electrical generation was 320,755 MWH or 85.3% design electrical capacity.

Operating Summary The following is a chronological description of plant operations including other pertinent items of interest for the month:

2/1/80 At the beginning of the reporting period the plant was shut down.

2/4/80 At 1058 hours0.0122 days <br />0.294 hours <br />0.00175 weeks <br />4.02569e-4 months <br /> a plant startup was init'.ated.

At 2332 hours0.027 days <br />0.648 hours <br />0.00386 weeks <br />8.87326e-4 months <br /> the generator was phased onto the grid.

2/9/80 At 0100 hours0.00116 days <br />0.0278 hours <br />1.653439e-4 weeks <br />3.805e-5 months <br /> power was reduced for surveillance testing and a rod pattern adjustment.

At 0300 hours0.00347 days <br />0.0833 hours <br />4.960317e-4 weeks <br />1.1415e-4 months <br /> the adjustment was completed and a power ascension was initiated.

2/24/80 At 0100 hours0.00116 days <br />0.0278 hours <br />1.653439e-4 weeks <br />3.805e-5 months <br /> power was reduced for surveillance testing and a rod pattern adjustment.

At 0230 hours0.00266 days <br />0.0639 hours <br />3.80291e-4 weeks <br />8.7515e-5 months <br /> the adjustment was completed and a power ascension initiated.

2/29/80 At the end of the reporting period the plant was operating at 99.8% of rated thermal power.