ML20091R158

Monthly Operating Rept for May 1984

ML20091R158
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	05/31/1984
From:	Burger F, Murphy W VERMONT YANKEE NUCLEAR POWER CORP.
To:	NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
VYV-84-309, NUDOCS 8406150004
Download: ML20091R158 (7)

Text

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l VERMONT YA*EE NUCLEAR POWER STATION MONTHLY STATISTICAL REPORT 84-05 FOR THE MONTH OF May, 1984 1

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4 OPERATING DATA REPORT DOCKET NO, 50-271 DATE 840610 COMPLETED BY FJ Burner

• ELEPHONE 802/257-7711 OPERATING STATUS Notes

1. Unit Name:

Vermont Yan1raa

2. Reporting Period:

my

3. Licensed Thermal Power (MWC):

ison

4. Nameplate _ Rating (Gross MWe):

540

'5,. Design Electrical Rating (Net MWe): 514(OC) 504(CC)

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

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 uA nn 3.647.00

12. Number Of Hours Reactor Was Critical 744.00 1_s76_na 83225.3_3 0.00

13. Reactor Reserve Shutdown Hours 0.00 0.00 80988.95

14. Hours Generator On-Line na nn 3.496.37 0.00

-15. Unit Reserve Shutdown Hours 0.00 0.00 117565494.50

16. Gross Thermal Energy Generated (MWH) 1_1sn _ su sn 5.404.815.00

17. Gross Electrical Energy Generated (MWH) 392.170.00_

1.834.858.00 39127936.00 18, Net Electrical Energy Generated (MWH) 375.469.00-1.759.712.00 37124728.00 95.87 79.01

19. Unit Service Factor 1n0.no

20. Unit Availability Factor 100.00 95.87 79.01

21. Unit Capacity Factor (Using MDC Net) 100.13 95.74 71.86

22. Unit Capacity Factor (Using DER Net) 99.18_

93.87 70.46 4.13 7.24

23. Unit Forced Outage Rate n nn

24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):

Refueling and maintenance outage scheduled to start 6/16/84 and last 8 weeks.

25. If Shut Down At End Of Report Period. Estimated Date of Startup:

26. Units In Test Status (Prior to Commercial Operation):

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION h

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.

50-271 UNIT Vermont Yankoo DATE 840610 COMPLETED BY FJ Burger TELEPHONE 802/2s7-7711 MONTH May DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 17, 516 1.

518 18.

515 2.

518 3.

518 -

19, 513 20.

443 4.

518 21, 512 5.

slo 22.

489 6.

47s 23.

508 7.

s1a 24, 501 8.

s2n 25.

496 9.

sig 26.

495 10, 518 27, 488 11.

517 28.

492 12.

517 29.

492 13.

464 14.

517 30.

496 15.

517 31.

498 16.

518 INSTRUCTIONS:

list the average daily unit power level in MWe-Net for each day in On this format, the reporting month. Compute to the nearest whole megawatt.

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UNIT SilUTDOWNS AND POWER REDUCTIONS DOCKET NO 50-271 UNIT NAME vor.nne vonk.a DATE nesin REPORT MONTH May COMPLETED BY F.T nuroer TELEPHONE 802/257-7711 E7 y

Cause & Corrective ee o

o License No.

Date j

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gg 7e Action to H

R porti 2:

u ca 84-09 840513 S

0 B

4 N/A RB CONROD Power reduction for control rod (Power pattern adjustment & other surveillance, reductio 1) 84-10 840520 S

0 B

4 N/A RB CONROD Power reduction for control rod (Power pattern adjustment & other surveillance.

reductio 1)

F: Forced Reason:

Method:

Exhibit G-Instructions S: Scheduled A-Equipment Failure (Explain) 1-Manual for Preparation of Data B-Maintenance or Test 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 & License Examination 5

F-Administrative Exhibit I - Same Source G-operational Error (Explain) li-Other (Explain) 7/80

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DOCKET NO.

50-271 7

UNIT Vermont Yankee

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DATE 840610 COMPLETED BY FJ Burger TELEPHONE REPORT MONTH May

SUMMARY

OF OPERATING EXPERIENCES Highlights Vermont Yankee operated at 97.75% of rated thermal power for the month.

Gross electrical generation was 392,170 MWH, or 97.61%of design electrical capacity.

2 Operatina Summary The following is a chronological description of plant operations including other pertinent items of interest for the month:

At the beginning of the reporting period the plant was operating at 98.88%

rated thermal-power.

840513 At 0030 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br /> a power reduction was initiated for control rod pattern adjustment and ~other surveillance.

840513 At 0400 hours0.00463 days <br />0.111 hours <br />6.613757e-4 weeks <br />1.522e-4 months <br /> a return to full power was started.

840520 At 0030 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br /> a power reduction was initiated for control rod pattern adjustment and other surveillance.

840520 At 0420 hours0.00486 days <br />0.117 hours <br />6.944444e-4 weeks <br />1.5981e-4 months <br /> a' return to power was started. The power coastdown to the 1984 refueling outage was initiated.

At the end of the reporting period the plant was operating at 96.26% of rated thermal power.

y VERMONT YANKEE NUCLEAR POWER CORPORATION P. O. BOX 157 GOVERNOR HUNT ROAD VERNON, VERMONT 05354 VYV 84-309 June 10, 1984 U. S. Nuclear Regulatory Commission Director, Office of Management Information and Program Control Wa'Aington, D.C.

20555

Dear Sir:

Sutwitted herewith is the Monthly Statistical Report for the Vermont Yankee Nuclear Power Station for the month of May,1984.

Very truly yours, VERMONT YAtKEE NUCLEAR POWER CORP.

9M' -

f Warren P.

rphy h

Vice Pre ident and Manager of Operations WPM:FJB/pt:403.011.1 Ifl