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)

Text

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VERMONT YANKEE NUCLEAR" POWER STATION MONTHLY STATISTICAL REPORT 80-02 FOR THE MONTH OF FEBRUARY, 1980 6 U 031 n'oA65

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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:

r k -, v..

10an

2. Reporting Period:

a

3. Licensed Thermal Power (SIWt):

1.593 540

4. Nameplate Rating (Gross $1We):

5. Design Electrical Rating (Net 31We): 514(open) 504(closed) 535

6. Afaximum Dependable Capacity (Gross SIWE):

514

7. Sfaximum Dependable Capacity (Net StWe):

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

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

10. Reasons For Restrictions.If Any:

This 3fonth Yr..to.Date Cumulative i

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

19. Unit Service Factor 86.3 91 77.h

20. Unit Availability Factor 86.1 91 77.6

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

24. Shutdowns Scheduled Over Next 6 Stonths (Type.Date.and Di. ration 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 CRITICA LITY INITIAL ELECTRICITY CO313t ERCIAL OPERATION

'(9/77)

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.

50-271 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) 0 514 37 2

0 18 9'6 3

0 19 526 4

0.7 524 20 5

356 21 525

~

436 6

22 526 k,

521' 7

23 526 8

518 5'14 24 525 9

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

(9/77)

UNITSilOTDOWNS AND POWER REDUCTIONS DOCKET NO.

50-271 UNIT NAhlE Vermont Yankee DATE 80011' REPORT hl0NTil February, 1980 COhfPLETED llY F P Recrs TELEPIIONE 617-166-9011 X2215 "L

':1 E

c e

c.

.2 _e g

-o.5 ~:4 Licensee c -*

Cause & Curreceive

$."'8 c

No.

Date o

3g jg5 Event nT Action to H;

dE 5

jdg Report y

1. 0

}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) d i

2 3

4 F Fo<s ed Iteason:

kleiliod:

Exhibit G -Insituctions S: St heduled 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)

DOCKET NO.

50-271 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 HALFUNCTION NATUllE OF LER OR OtHAGE 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 valve Temperature Indication Corrective N/A Failed selector Faulty temperature Replaced switch op.'.'B", Diesel Cenerator MR 80-0077 switch on instro - reading 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 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 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

DOCKET NO.

50-271 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 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 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

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.

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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.