ML20059G834

Monthly Statistical Rept for Aug 1990 for Vermont Yankee Nuclear Power Station

ML20059G834
Person / Time
Site:	Vermont Yankee
Issue date:	08/31/1990
From:	Murphy W, Wallin G VERMONT YANKEE NUCLEAR POWER CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
VYV-90-260, NUDOCS 9009130194
Download: ML20059G834 (6)

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f VERMONT YANKEE NUC EAR POWER CORPORATION 1 4 -

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i U.S. Nuclher Regulatory Commiasion.

. ATTNi' DocumMnt- Control Desk . ~

Washington,1D'.'.'- 20555

Dear:

Sir

' submitted herewith is the Monthly StatisticalhReport for the.

vermont Yankee Nuclear. Power' Station for thecmonth of August,'1990. .

4 Very;truly yours,-  !

t i l' VERMONT YANKEE: NUCLEAR POWER' CORP.

Warren-P. Mu,tphy h e, y

-SeniorVice[ President, pe r ions' '

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3l cc: 1) USNRC :j Region-I . ~j; 475 Allendale Road' ]

King of' Prussia,'PA 19406'

2) USNRC Resident-Inspector, VYNPS DP-0411'Rev. 3

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i i 9009130194 900831 /

PDR R

ALOCK 05000271 PDC

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VERMONT: YANKEE NUCLEARr:POWERLSTATION~

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[ l MONTHLY.' STATISTICAL.REPORTc90- 8i

.FOR.THE.M'ONTH OriAOGUST,y 1990_' , , ,

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OPERATING DATA REPORTI

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/* , DOCKET,NO..-50-271-DATE 900910

-COMPLETED BY G.A. Wallin

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(802)257-7711 TELEPHONE- g OPERATING STATUS

1. Unit Name . Vermont Yankee 4 NOTES:

2, Reporting Period: August- l

3. ' Licensed.LThermal Power (MWt): 1593 'l 1

4. .NameplateLRating(Gross MWe): 540- u

5. Design' Electrical Rating (Net MWe): 514(oc) 504(cc) l 6. Maximum Dependable capacity (Gross MWe): 535 >

7. Maximum Dependable. Capacity (Net MWe): . 504 I

8. If changes occur in capacity. ratings (Ite.99 Number 3Lthrough 7)since

-last. report,-give reasons:'

N/A i

1 9. . Power level to which restricted,.if any(Net? MWe): . N/A>

10. Reasons for restrictions, if any: N/A  ;

This Month .Yr-to-Date Cumulative

11. Hours In Reporting Period 744.00- 5831.00 -----

12. Number Of Hours Reacter was Critical 741.05 5669.37 126335.23

13. Reactor Reserve Shutdown Hours 0.00- 0.00 0.00

14. Hours Generator On-Line 738.58= 5580.36 123557.43

15. - Unit-Reserve Shutdown-Hours 0.00- 0.30 0.00-

16. Gross Thermal Energy Generated (MWH)1042855.50 8570857.50' 182580414.00

17. Gross Electrical Energy Generated 344619.00- 2878197.00 60832086.00

18. Net Electrical Energy Generated (MWH)321932.00 2738578.00 57754277.00

19. Unit Service Factor 99.27 95.70 78.55

20. Unit Availability Factor 99.271 95.73- 78.55

21. Unit Capacity Factor (Using MDC Net) 85.85. 93.19 72.85

22. Unit Capacity Factor (Using DER Net) 84.18 91.37 71.43.

23. Unit Forced Outage Rate 0.00 2. 26 , _ 5.57

24. Shutdowns scheduled over next 6 months (Type, Date, and Duration of Each): 1990 Refueling Outage began on August' 31, 1990'for six.

weeks duration. L

-25. If shut down at end of report period, estimated date of startup:10/15/90 L

26. Units In Tet: "tatus(prior to commercial operation):: N/A Forecast Achieved In1 :AL CRITICALITY ~~

IN'*IAL ELECTRICITY Cl .iRCIAL OPERATION

, VYDPF 0411.01 L

DP 0411 Rev. 3 Page 1 of 1 RT No. 13.F01.19F P

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AVERAGE DAILY UNIT POWER' LEVEL --'=

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= DOCKET NO'. 50-271' UNIT.--Vermont Yankee I DATE~ 900910

~COMPLFTED=BY-L-G.A.- Wallin .

TELEPHONE ~ (802)257-7711-

' MONTH- August DAY-: -AVERAGE DAILY POWER LEVEL' DAY AVERAGE DAILY POWER LEVEL .l

.(MWe-Net).

(MWe-Net) l

1. 452 ' 17 . .439 ,

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2. 451 18 . . 439

3. 447 19 . L 440 U

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5.: .442 -21. 436 '

6. 444 22. 433

7. 449 23. 433 .

8. 447 2 4. - 428 i

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9. 451 25. 427 ..

10. 449 26. 430

11. 447 27. 424 12, 445 28. 421 e

13. 444 29. 418 '

14. 443 30. 420

15. 443 31 '. 248-l .6. 442 ,

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INSTRUCTIONS: 4

. 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 negawatt. .

! VYDPF 0411.02 t DP-0411 Rev. 3 i Page 1 of 1 .l j.RT No. 13.F01.18V. t g . b 1

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UNIT SNUTDOWNS AND POWER REDUCTIONS

• DOCKET NO 50-271 REPORT MONTH AUGUST UNIT NAME Persent Yankee . . . ,

DATE 900910 , ,'-

CONVLETED SY G.A. Wallin ,

T3LEPRONE (802)257-7711 1 2 Method of License System - componac- -Casse and corrective No. Date Type. Duration Reason Shutting Down Event Code Code' Action to.

(hours) Reactor 3 Reporti 4_ 5 Prevent Recurrence

90-08 -900831 S 5.42 C,B 1 N/A N/A N/A Shutdown for 19 90; Ref ueling/ -

Maintenance outage.

'l i F: Forced 2 Reason: 3 Method: 4 Exhibit G- Instructions 55 Scheduled .A-Equipment railure (Explaint 1- Manual' for Preparation of Data

" B-Maintenance or' Test ~ '2- Manual-Scram. Entry Sheets for Licensee.

C-Refueling .3- Automatic Scram ' Event l Repo rt 'l( LER)' File -

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D-Regulatory Festriction . ..

4- Other (Explain) (NUREG 0161) 'l E-Operator Training'and License Examination F-Administrative 5 Exhibit I - Same Source.

VYDPF 0411.03 G-Operational Error (Explain)

DP 0411 Rev. 3 H-$ Explain)

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DOCKET NO.- 50 271 - I

. . ~,-i f * * ' UNIT-Varnont Ynnkom- .i

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' 1 DATE 900910

. COMPLETED BY G.A.-Wallin f <

TELEPHONE (802)257-7711-  !

REPORT MONTH . August s

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SUMMARY

OF OPERATING EXPERIENCES-  ;

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Highlights 1

Vermont Yankee; operated at!88.0% of ratedLthermal power for the month.

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' Gross electrical generation was 344,619 MWHe or 85.8% design: electrical: ,

' capacity.

Op3ratinglSummary H

.Tha following is a-chronologicaI description of[ plant. operations i~ncluding:

other pertinent. items'of-interest for the month:

]  :

'At=the beginning ofl(the; reporting period the plant was" operating at: 92.4% ,

of rated thermal power and continuing coasting down=to the end;of cycle..

900831.'At.1100. hours,'a reactor shutdown:was initiated for.the 19901 ,

il,5 Refueling / Maintenance outage. (See' Unit Stutdowns'and Power

' Reductions). ,

~900831' 1At 1835 hours0.0212 days <br />0.51 hours <br />0.00303 weeks <br />6.982175e-4 months <br />, the generator was removed =from;the grid.  :

900831- At 2106. hours, the reactor was sub-critical..

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At the end of the reporting period the plant was shutdown for the-1990; L Refueling / Maintenance outage.

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