ML20149E864

Monthly Operating Rept for Jan 1988

ML20149E864
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	01/31/1988
From:	Murphy W, Wallin G VERMONT YANKEE NUCLEAR POWER CORP.
To:	NRC
References
VYV-88-021, VYV-88-21, NUDOCS 8802110306
Download: ML20149E864 (6)

Text

VERmNT YANKEE NUCLEAR POWER STATION MONTHLY STATISTICAL REPORT 88-01 FOR THE MONTH OF JANUARY, 1988 VYDPF 0411 Rev. 1 1

0 3

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OPERATING DATA REPORT DOCKET NO.

50-271

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DATE 880210 COMPLETED BY G.A. Wallin TELEPHONE (802) 257-7711 OPERATING STATUS Notes:

1.

Unit Name:

Vermont Yankee 2.

Reporting Period:

January 3.

Licensed Thermal"Power (MWt):

1593

(

4.

Nameplate Rating (Gross MWe):

54 0 5_

5.

Design Electrical Rating (Net MWe):514(oc) 504(cc) 2 6.

Maximum Dependable Capacity (Gross MWe):

535 7.

Maximum Dependable Capacity (Net MWe):

504 8.

If changes occur in capacity ratings (Items Number 3 through 7) since last report, give reasons:

N/A E

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 744.00 744.00 744.00 744.00 105589.36

12. Number of Hours Reactor was Critical

13. Reactor Reserve Shutdown Hours 0.00 0.00 0.00

14. Hours Generator On-Line 744.00 744.00 103013.27 j

15. Unit Reserve Shutdown Hours 0.00 0.00 0.00 j

16. Gross Thermal Energy Generated (MWH) 1169153.C0 1169153.00 150909864.50

17. Gross Electrical Energy Generated (MWH) 395527.00 395527.00 50235471.00

18. Net Electrical Energy Generated (MdH) 379488.00 379488.00 47674575.00

19. Unit Service Facter 100.00 100.00

76. 50

20. Unit Availability Factor 100.00 100.00

76. 50

21. Unit Capacity Factor fusing bOC Net) 101.20 101.20 70.24

22. Unit Capacity Factc1 iusing DER Net) 99.23 99.23 68.88

23. Unit rorced Outage Rate 0.00 0.00 6.27

24. Shutdowns scheduled over next 6 months (Type, Date and Duration of Each):

N/A _

25. If shut down at end of report period, estimated date of startup: N/A

26. Units in Test Status (prior to commercial operation): N/A Forecast Achieved INITIAL CRITICALITY VYDPF 0411.01 INITIAL ELECTRICITY Rev. 1 COMMERCIAL OPERATION

AVERAGE DAI'LY LNIT POWER LEVEL e,

DOCKET NO.

50-271-UNIT Vermont Yankee 4

DATE 880210 COWLETED BY G.A. Wallin TELEPHOE (802) 257-7711

. MONTil January DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL

. (Mie-Net )

(MWe-Net)

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1 516 17 512 2

517 18 517 3

478 19 518 4

516 20 510 5

516 21 519 6

518 22 519 7

516 23 519 8

516 24 516 i-9 516 25 519 10 512 26 518 11 516_

27 518 12 516 28 518 13 517 29 518 14 515 30 395 15 516-31 473 16 516 b

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.

l VYDPF 0411,02 i

Rev. 1 i

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L

DOCKET NO.

50-271 UMIT NAE V rmont Vankee UNIT SHUTDOWNS AND POWER REDUCTIONS DATE 880210 COWLETED BY G. A. Wallin REPORT MONTH Jenaary TELEPHOE (802) 257-7711 1

2 l

3 4

5 l

No.

Date Type Duration Reason Method of Licensee System Component Cause and Corrective Action to (hours)

Shutting Down Event Code Code Prevent Recurrence Reactor Report +

^

88-01 880130 S

0.00 B,H' 4

~ N/A RB CONROD Control Rod Pattern Exchange and Power Surveillance Testing Reduction 88-01 880130 S

0.00 B

4

~N/A CB XXXXXX A and B recirculation K; sets Power removed frun service for brush Reduction wear replacement.

1 2 Reason:

F-FGrced A-Equipment Failure (Explain) 3 Method:

4 Exhibit G - Instructions S-Scheduled B-Maintenance or Test 1-Manual for Preparation of Data Entry C-Refueling 2-Manual Scram Sheets for Licensee Event D-Regulatory Restriction 3-Automatic Scram Report (LER) File (NUREG 0161)

E-Operator Training and License Examination 4-Other (Explain)

F-Administrative 5 Exhibit I - Same Source G-Operational Error (Explain) See Above Cause and Corrective Action section

• H-Other (Explain) - Control Rod Pattern Exchange VYDPF 0411.03 Rev. 1

DOCKET NO.

50-271

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UNIT Vermont Yankee DATE 880210 COMPLETED'BY G.A. Wallin TELEPHONE (802) 257-7711 e

REPORT MONTH January SU M RY 0F OPERATING EXPERIENCES Hiahliahts Vermont Yankee operated at 98.6% of rated thermal power for the month.

Gross electrical generation was 395,527 MWHe or 98.4% of design electrical capacity.

Operatina Summary The following is a chronological description of plant operations including other pertinent items of interest for the months At the beginning of the reporting period the plant was operating at 100.0%

of rated thermal power.

880130 At 0948 hours0.011 days <br />0.263 hours <br />0.00157 weeks <br />3.60714e-4 months <br />, reduced power to minimum recirculation flow to remove i

the "B" recirc pump from service from M3 set brush wear replacement.

I (See Unit Shutdowns and Power Reductions).

680130 At 1043 hours0.0121 days <br />0.29 hours <br />0.00172 weeks <br />3.968615e-4 months <br />, initiated control rod exercising.

880130 At 1152 boors, _ completed cuatrol rod exercising.

)'

860130 At 1300 hours0.015 days <br />0.361 hours <br />0.00215 weeks <br />4.9465e-4 months <br />, started the "B" recire pump following the MG set brush replacement.

880130 At 1314 hours0.0152 days <br />0.365 hours <br />0.00217 weeks <br />4.99977e-4 months <br />, removed the "A" recirc pump from service for MG set i

brush wear replacement.

(See Unit Shutdowns and Power Reductions).

l 880130 At 1345 hours0.0156 days <br />0.374 hours <br />0.00222 weeks <br />5.117725e-4 months <br />, initiated a rod pattera exchange.

(See Unit Shutdowns and Power Reductions).

880130 At 1445 hours0.0167 days <br />0.401 hours <br />0.00239 weeks <br />5.498225e-4 months <br />, completed the rod pattern exchange.

L 880130 At 1523 hours0.0176 days <br />0.423 hours <br />0.00252 weeks <br />5.795015e-4 months <br />, started the "A" recire pump following the MG set brush replacement and a return to full power was initiated.

At the end of the reporting period, the plant was operating at 91.7% of rated thermal power.

i VYDPF 0411.04 Rev. 1

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VERhiONT YANKEE NUCLEAR POWER CORPORATION P. O. BOX 157 GOVERNOR HUNT ROAD VERNON, VERMONT 05354 February 10, 1988 VYV 88-021 U. S. Nuclear Regulatory Commission Director, Office of Management Information and Program Control Washington, D. C.

20555 Dear Sir Submitted herewith is the Monthly Statistical f<eport for the Vermont Yankee Nuclear Power Station for the month of January,1988.

Very truly yours, VERMONT YANKEE NUCLEAR POWER CORP.

i Warren P. kbrphy 4

I Vice President an Manager of Operations 4

VYDPF 0411 Rev. 1

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