ML20005F181

Monthly Operating Rept for Dec 1989 for Vermont Yankee Nuclear Power Station.W/900110 Ltr

ML20005F181
Person / Time
Site:	Vermont Yankee
Issue date:	12/31/1989
From:	Murphy W, Wallin G VERMONT YANKEE NUCLEAR POWER CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
VYV-90-002, VYV-90-2, NUDOCS 9001160024
Download: ML20005F181 (6)

Text

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ERMONT YANKEE NUCLEAR POWER CORPORATION-E

P. O. BOX 157 h GOVERNOR IIUNT ROAD VERNON, VERMONT 05354 s

January 10, 1990-VYV 9 0- 002 -

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-U.S. Nuclear Regulatory Commission

-ATTN:: Document Control-Desk:

Washington, D.C. 20555

Dear Sir:

i -Submitted herewith is-the Monthly Statistical Report for the

! Vermont Yankee-Nuclear Power Station-for the month of December, 1989.

Very truly yours, VERMONT YANKEE' NUCLEAR POWER CORP.

$44-~~-- pA ^

Warren P. urp y Vice Pres dent an ,/ -l Manager of Operation I cc: 1) USNRC  ;'

Region I.

475 Allendale Road j King'of Prussia, PA 19406

2) USNRC f'

i. Resident Inspector, VYNPS ,

1  !

l: DP 0411 Rev. 2 Page 1 of'1 l- 9001160024 891231 1

PDR. ADOCK 05000271 R PDC /

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l VERMONT YANKEE NUCLEAR POWER STATION MONTHLY STATISTICAL REPORT 89-12  ;

FOR THE~ MONTH OF DECEMBER, 1989 l DP 0411 Rev. 2 Page 1 of 1

' OPERATING DATA' REPORT-t> DOCKET NO. 50-271:

't'l DATE 900110-COMPLETED BY 9.A. Wallin *

,. TELEPHONE (802)257-7711 OPERATING STATUS.

1.. -Unit' Names Vermont Yankee. l NOTES:

? 2i Reporting Period: December

[ 3: . Licensed Thermal Power (MWt):

, 1593 4.. Nameplate Rating (Gross MWe): 540

.5. Design plectrical Rating (Net MWe): 514(oc) 504(cc)

-6. Maximum Dependable Capacity (Gross MWe): 535 }

.7 .. MaximumLDependable Capacity (Net MWe): 504 8.. _If changes occur in capacity ratings (Items Number 3 through 7)since -

! last-report, give reasons:

N/A

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

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

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This Month Yr-to-Date Cumulative.

<11..' Hours In Reporting Period 744.00 8760.00 -----

11 2 . Number Of Hours Reactor was Critical 744.00 7416.18 120665.86

13. Reactor Reserve Shutdown Hours 0.00, 0.00 0.00-14 '. Hours-Generator On-Line 744.03 7373.65 117977.07

15. -Unit Reserve' Shutdown Hours 0.00 0.0Q- 0.00

-16. Gross: Thermal Energy Generated (MWH)1164153.50 11312850.50 174009556.50 s 17 . c ' Gross Electrical Energy Generated 395359.00 3791518.00 57953889.00

-18. Net Electrical 1 Energy Generated (MWH)379294.00 3606777.00 55015699.00

' 77.89

19. UniteService Factor 100.00 34.17 ,

20. Unit Availability Factor 100.00 84.17 77.89-c 21. Unit Capacity Factor (Using MDC Net) 101.15 81.69 72.07

22. Unit Capacity. Factor (Using DER Net) 99.18 80.10 70.67 123. Unit Forced Outage Rate 0.00 0.00 5.72 .

24. Shutdowns scheduled over next 6 months (Type, Date, and Duration of f Each):-N/A 2 5 .' If shut down at end of report period, estimated date of startup: N/A 2 6 .- Units.In Test Status (prior to commercial operation): N/A Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION

'VYDPF'0411.01

'DP10411 Rev. 2 Paga 1 of.1 ,

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.~*' AVERAGE DAILY UNIT POWER LEVEL .

DOCKET'NO. 50-271 J

-UNIT Vermont Yankee l DATE 900110 COMPLETED BY G.A. Wallin TELEPHONE (802)257-7711  :

MONTH December

+ DAY. AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL

-(MWe-Net): (MWe-Net) 1.- 520 17. 510 t

.2. 520- 18'. 515

3. 517 19. 519

-4.. 519 20, 519 5.. 519 21, 518 22.

6. 519 519

-7. 519 23. 518

8. 519 24. 515

9. 438 25. 519

-10. 416- 26. 519

-11.: 477 27, 519 12 .: 516 28. 519

'13. 517 29, 519 14.- .518 30. 519

15. 519 31. 516 16, 488 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 magawatt.

VYDPF 0411.02 DP'0411.Rev. 2 Page 1 of 1 RT No. 13.F01.18V

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,; .u UNIT SHUTDOWNS'AND POWER REDUCTIONS '"- ^

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'DeCRET NO 50-271 . i -

REPORT MONTE DECEMBER UNIT NAME Termont Yankee

DATE 900110 COMPLETED SY G.A. Wallin

. TELEPHONE (802)257-7711 1 2 Method of- License. System component .Cause and Corrective No. Date Type Duration Reason Shutting Down' Event Code Code ' Action to (hours) Reactor 3 Report 9- -4 5 Frevent Recurrence 89-10 891209 S 0.00 M* 4 N/A. RS CONROD Rod Pattern adjustment.

Power Reduction 1 F: Forced 2 Reason: 3 Method: 4 Exhibit G- Instructions S: Schedulea A-Equipment Failure (Explain) 1- Manual for Preparation of Data B-Maintenance or fest 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 and License Examination F-Administrative 5 Exhibit I - Same source VYDPF 0411.03 G-Operational Error (Explain)

DP 0411 Rev. 2 *H-(Explain) - Rod Pattern Adjustment Page 1 of 1

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DOCKET NO, 50-271 UNIT Varnont Yankra i

,*',,. DATE 900110 1

,s COMPLETED BY G.A. Wallin  !

TELEPHONE (802)257-7.711 ]

REPORT-MONTH December

SUMMARY

'Or OPERATING EXPERIENCES Highlights

. Vermont Yan k ee operated at 98.2% of rated thermal power-for the month.  :

Gross electrical generation was 395,359 MWHe or 98.4% design electrical.

capacity.

Op3 rating Summary- ,

Thm,following is a chronological description of plant operations including

-other pertinent items of interest for the month:

At thelbeginning of.the reporting period the plant was operating at 99.9% J of rated thermal power.: '

891209 At 1200 hours0.0139 days <br />0.333 hours <br />0.00198 weeks <br />4.566e-4 months <br />, initiated a power reduction to minimum recirculation flow to perform a rod pattern adjustment.

891209 At 1440 hours0.0167 days <br />0.4 hours <br />0.00238 weeks <br />5.4792e-4 months <br />, at 65% power initiated a rod pattern' adjustment.

(See Unit Shutdowns and Power Reductions) 891209- At 1628 hours0.0188 days <br />0.452 hours <br />0.00269 weeks <br />6.19454e-4 months <br />, completed the rod pattern adjustment.

891209-- At 1950 hours0.0226 days <br />0.542 hours <br />0.00322 weeks <br />7.41975e-4 months <br />, began a' return to full power.

i At the end of the reporting period the plant was operating at 99.2% of rated. thermal power.

= VYDPF 0411.04 DP 0411 Rev.-2

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