ML20005F181

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Monthly Operating Rept for Dec 1989 for Vermont Yankee Nuclear Power Station
ML20005F181
Person / Time
Site: Vermont Yankee File:NorthStar Vermont Yankee icon.png
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 -

s

-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 Vice Pres dent an,/

-l Warren P.

urp y

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Manager of Operation I

cc:

1) USNRC Region I.

475 Allendale Road j

King'of Prussia, PA 19406

2) USNRC f'

Resident Inspector, VYNPS i.

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 4

l 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 19.

UniteService Factor 100.00 34.17 77.89 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 RT'No. 13.F01.19F

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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 6.

519 22.

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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UNIT SHUTDOWNS'AND POWER REDUCTIONS

~

'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 ee operated at 98.2% of rated thermal power-for the month.

k 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 PageL1 of 1-RT No. 13.F01.18X t

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