ML19325C418

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Monthly Operating Rept for Sept 1989 for Vermont Yankee Nuclear Station.W/891010 Ltr
ML19325C418
Person / Time
Site: Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date: 09/30/1989
From: Murphy W, Wallin G
VERMONT YANKEE NUCLEAR POWER CORP.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
VYV-89-189, NUDOCS 8910160210
Download: ML19325C418 (7)
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VERMONT YANKEE NUCLEAR POWER CORPOR ATION

. P. O. DOX 1h7

  • D GOVERNOR HUNT ROAD g VERNON, VERMONT 05354 i

L October 10, 1989 i l VYV 89- 189 t j '.

t U.S. Nuclear Regulatory Commission ATTN: Document Control Desk washington, D.C.

20555 l

Dear Sir:

Submitted herewith is the Monthly Statistical Report for the Vermont Yankee Nuclear Power Station for the month of September, 1989.

very truly yours, VERMONT YANKEE NUCLEAR POWER CORP.

arren P. 'urphy ,

Vice President and Manager of Operations cc: 1) USNRC Region I 475 Allendale Road King of Prussia, PA 19406

2) USNRC Resident Inspector, VYNPS

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DP 0411 Rev. 2 Page 1 of 1 Nf 8910160210 890930

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i VERMONT YANKEE NUCLEAR' POWER STATION

' MONTHLY' STATISTICAL: REPORT 89-09 j x.

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.FOR'THE MONTH OF 8EPTEMBER, 1989 H

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" OPERATING DATALREPORTE a-DOCKET.NO.- 50-271'

" .~ + DATE 891010-

, COMPLETED BY f. A . Wat lin 4 .

TELEPHONE (802)257-7711

'CPERATING STATUS

1. Unit Name:. Vermont Yankee-NOTES:

2,- Reporting Period!' September 3.;, Licensed Thermal Power (MWt-): 1593 4' s Nameplate Rating (Gross MWe): .540 5.: Design' Electrical Rating (Net MWe): 514(oc) 504(ce)

'5.' Maximum Dependable capacity (Gross MNe): 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

.9. Power level to which restricted, if any(Nel MWe): N/A 10.: Reasons-for. restrictions, if any: N/A This Month Yr-to-Date Cumulative

' 11. - Hours In-Reporting Peried 720.00 -6551.00 -----

' 12 .- Number ~0f Hours Reactor was Critica) 720.00 5207.18 118456.86

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0733 0.00: 0.00

13. Reactor Reserve Shutdown Hours 5164.63 115768.07 l14. Hours Generator On-Line 720.00 0.00 0.00 0.00

-15.-- Unit Rescrve Shutdown Hours 170555952.00

16. Gross Thermal Energy Generated (MWH)1133330.00 7859246.00 lL 7 . Gross' Electrical Energy' Generated 375348.00 2619_702.00 56782073.00 Net Electrical Energy Generated (MWH)353367.00 2485062.00 53893984.00

'18. 77.56 19.' Unit Service Factor 100.00 78.84

20. Unit Availability Factor 100.00 78.84 77.56 Unit Capacity Factor (Using MDC Net) 97.38 75.27_ 71.64 21.-

22.- Unit Capacity Factor (Using DER Nat) 95.48 73.80' 70.25 Unit Forced Outage Rate 0.00 0.00 5713 12 3 .

24. Shutdowns scheduled over next 6 months (Type, Date, and Duration of Each): -N/A i
25. .If shut down at end of report period, estimated date of startup:_N/A

)26. ' Units In Test Status (prier to commercial operation): N/A Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY __

COMMERCIAL OPERATION VYDPF 0411.01 DP 0411: Rev. 2 P3ga 1-of 1 RT.No. 13.F01.19F

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I' DOCKET NO. 50-271

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UNIT .' vermont Yankee DATE 891010 COMPLETED BY G.A. Wallin-ys TELEPHONE l (802)257-7711-

. . -g 5fMONTHl

' September

,7 DAY'! AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER' LEVEL (MWe-Net) (MWe-Net) 1 l. 491 17. 489

<2. . _490. 18. 497

'3; .485- 19. 500

.4.' 498- 20. 493

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5. 497 21. 499 6, 406 22 492 7.. 493. 23. 371 8L 493 24. 487
9. 488 25. 508 e

10 . = 479 26, 505

11. . .489 27, 509 J12.' 489 28. 508
13 . -- 491 29. 505

'14.- 483~ 30. 502 f 15'. 495 31.

c16, 496

. INSTRUCTIONS:

O n; t h i s ~ f o r m a t , list the average daily unit power level in MWe-Net

.for~each' day in the' reporting month. Compute to the nearest whole imagawatt.

4VYDPF 0411.02

DP 0411'Rev. 2

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UNIT SHUTDOWNS AND POWER REDUCTIONS

  • DOCEET'WO 50-271 ..: ~d "

~ REPORT MONTH -SEPTEMBER UNIT NAME vermont Tankee -

-DATE 891010 COMPLETED BY G.A. Ws11in TELEPHONE (802)257-7711 1 2- Method of License. System Component Cause and Co rrective -

No. Date Type Duration Reason Shutting Down Event Code Code ~ Action'to-(hours) Reactor' 3- Reporte 4 5 . Prevent Recurrence 89-07 890923 S 0.00 B,H*

  • N/A RB- CONROD Single Red Scram testing;' weekly.

Power turbine surveillance,' turbine Reduction- . bypass valve-testing, control' rod ~

exercising and's rod' pattern' exchange.

1 F: Forced 2 Reason: 3 Method: 4 Exhibit G- Instructions S: Scheduled A-Equipment Failure (Explain) 1- Manual for Preparation of Data B-Maintenance or Test 2- Manual Scram 4

C-Refueling ,

3- Automatic Scram. Entry. Sheets(LER)

Event Report for Licensee File D-Regulatory P=striction 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 Exchange Page 1 of 1 RT No. 13.F01.18W 6

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DOCKET NO. 50-271'

(; # UNIT. Vermont 1(. nkc ,

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DATE 891010

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  • . COMPLETED BY G.A. W9111n

~' TELEPHONE (802)257-7711 p

REPORT MONTH September I

SUMMARY

'Or OPERATING EXPERIENCES F

-Highlights (Veruont Yankee' operated at 98.8% of rated thermal power for the month.

Gross electrical generation was 375,348 MWHe or 96.5% design electrical i cc pa ci ty . .

Operating Summary Tha;following is a chronological description of plant operations including j

.othar pertinent items of interest for.the month:

At th'e beginning of the-reporting period the plant was operating at 99.9% -

> of rated-thermal power.

V890923 At 0211 hours0.00244 days <br />0.0586 hours <br />3.488757e-4 weeks <br />8.02855e-5 months <br />, initiated a power reduction to minimum recirculation flow to perform scheduled maintenance, surveillance testing, bypass valve testing, single rod scram testing, and a rod pattern exchange.

'890923 'At'0340 hours0.00394 days <br />0.0944 hours <br />5.621693e-4 weeks <br />1.2937e-4 months <br />, started' turbine surveillance, control rod exercising, and bypass va'1ve testing .(See Unit Shutdowns and Power Reductions) ,

p 890923 At 0443 hours0.00513 days <br />0.123 hours <br />7.324735e-4 weeks <br />1.685615e-4 months <br />, completed turbine surveillance, control rod exercising,'and bypass 1 valve testing.

890923. At 0757 hours0.00876 days <br />0.21 hours <br />0.00125 weeks <br />2.880385e-4 months <br />, initiated single rod scram testing.and a rod patcorn exchange . (See Unit shutdowns and Power Reductions) 890923 At 1325 hours0.0153 days <br />0.368 hours <br />0.00219 weeks <br />5.041625e-4 months <br />, completed single rod scram testing and the rod pattern exchange.

890923 At11540 hours, began a return to full power.

At the end of the reporting period the plant was operating at 99.9% of -

rated thermal power.

VYDPP 0411'.04 DP.0411 Rev. 2 Page 1 of 1 RT.No. 13.FOl.18X
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