ML20063G255

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Monthly Operating Rept for Jan 1994 for Vermont Yankee Nuclear Power Station
ML20063G255
Person / Time
Site: Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date: 01/31/1994
From: Reid D, Wallin G
VERMONT YANKEE NUCLEAR POWER CORP.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
BVY-94-16, VY-RCE-94-003, VY-RCE-94-3, NUDOCS 9402150375
Download: ML20063G255 (6)
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Text

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Y VURMONT YANKEE

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NUCLEAR POWER CORPORATION Th,

P.O. Box 157, Governor Hunt Road

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Vernon, Vermont 05354-0157

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(802) 257-7711

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February 10,1994 VY-RCE-94-003 BVY 94-16 U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Attn:

Document Control Desk

Reference:

a)

License No. DPR-28 (Docket No. 50-271)

Dear Sir:

Submitted herewith is the Monthly Statistical Report for the Vennont Yankee Nuclear Power Station for the month of Januarv.1994.

Very tmly yours, Vennont Yankee Nuclear Power Corp.

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Donald A. Reid Vice President, Operations cc:

USNRC, Region I USNRC Resident Inspector, VYNPS i

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/ r 9402150375 940131 iJ DR ADOCK 0500 1

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1 VERMONT YANKEE NUCLEAR POWER STATION MONTIILY STATISTICAL REPORT 94-01

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FOR TIIE MONTII OF JANUARY 1994

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DP 041l~ Rev. 5 Page1 of1 I

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~ OPERATING-DATA REPORT f

DOCKET NO.50-271 l

DATE-940210 COMPLETED BY G.A.

WALLIN Ll TELEPHONE (802)257-7711' l

OPERATING STATUS

1. Unit Name:

Vermont Yankee

'2.. Reporting Period:

Januarv NOTES:

3. Licensed Thermal Power (MWt):1593 i
4. Nameplate Rating (Gross MWe) : E40
5. Design Electrical Rating (Net MWe):

514 (oc) 504(cc)

6. Maximum Dependable Capacity (Gross MWe) :

535_-

7. Maximum Dependable Capacity (Net MWe):

524

.i last report, give reasons:

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If changes, occur in capacity ratings-(Items Number 3 through 7) sinca

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'N/A 3

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 185568.00o

12. Number Of Hours Reactor was Critical 744.00 744.00' 151961.43J q
13. Reactor Reserve Shutdown Hours 0.00 0.00 0.00
14. Hours Generator-On-Line-744.00'

'744.00 148859.62

15. Unit. Reserve Shutdown Hours 0.00

'O.00

-0.00 1

16. Gross Thermal Energy Generated (MWH) 1181990.00 1181990.00'221887661.50
17. Gross Electrical Energy Generated 401169.00 401169.00' 73920551.00
18. Net Electrical Energy Generated (MWH) 385670.00 385670.00 '70232694.00 i
19. Unit Service Factor-100.00 100.00

-79.49.

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20. Unit Availability Factor 100.00-100.00-

'79.49

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21. Unit Capacity Factor (Using MDC Net) 102.85 102.85 74.41-j
22. Unit. Capacity Factor (Using DER Net)-

100.85 100.85 72.96'

23. Unit Forced Outage Rate 0.00 0.00 5.15 j
24. Shutdowns scheduled over next'6 months (Typei Date,.and Duration of.

1l Each:

N/A 7

~.1

25. If shut down at end of report period,. estimated 1date of startup:N/A' l
26. Units In. Test Status (prior to~ commercial operation): N/A l

Forecast Achieved-INITIAL CRITICALITY ci INITIAL ELECTRICITY

-COMMERCIAL OPERATION VYDPF 0411.01

..'DP 0411 Rev. 5

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AVERAGE DAILY UNIT POWER LEVEL

.4-DOCKET NO. 50-271

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UNIT Vermont Yankee.

t DATE 940210 COMPLETED BY G.A.

WALLIN TELEPHONE (802)257-7711 MONTH Janua ry

' DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1.

520 17.

51 2.

519 18.

521 i

3.

519 19.

519

-4.

519 20.

519

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5.

519 21.

520 i

6.

519 22.

520 7.

519 23.

519 l

8.

520 24.

520 9.

490 25.

520

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10.

519 26.

520 11.

519 27.

519 12.

519 28.

519

- i 13.

519 29.

520 l

14.

519 30.

519 15.

519 31.

519 i

V 16.

518 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.

VYDPF 0411.02 j

DP 0411 Rev. 5 l

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UNIT SHUTDOWNS AND POWER REDUCTIONS i

REPORT MONTH JANUARY DOCKET NO 50-271 UNIT NAME Vermont Yankee DATE 940210 COMPLETED BY G.A.

Wallin -

TELEPHONE (802)257-7711 1

2 3

4 5

t No.

Date Type Duration Reason Method of License System Component Cause and Corrective (hours)

Shutting Event Code Code Action to Prevent Down Report #

Recurrence Reactor 94-01 940109 S

0.00 H*

4 N/A RB CONROD MSIV testing, and a-Power Rod Pattern Exchange Reduction 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 Entry Sheets for License C-Refueling 3 - Automatic Scram Event Report (LER) File D-Regulatory Restriction 4 - Other (Explain)

(NUREG 0161)

E-Operator Training and 4

License Examination 5 Exhibit I - Same Source

VYDPF 0411.03 F-Administrative DP 0411 Rev. 5 G-Operational Error (Explain)

Page 1 of 1

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a DOCKET.NO. 50-271 c1*

DATE 940210 i

COMPLETED BY G.A.-WALLIN

' TELEPHONE. (802)257-7711 REPORT MONTH

'Januarv

SUMMARY

OF OPERATING EXPEEJENCES Highlights

. Vermont Yankee _ operated at 99.7% of rated thermal power for the. month.

Gross electrical generation.was 401.169 MWHe or 99.9% design electrical-f capacity.

1 i

Operating 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 99.9%.

of rated thermal power.

940109 At 0030 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />, initiated a power reduction to minimum recirculation flow to perform surveillance, and a rod pattern exchange.

' (See Unit'

' Shutdowns and Power' Reductions) 1 940109 At 0200 hours0.00231 days <br />0.0556 hours <br />3.306878e-4 weeks <br />7.61e-5 months <br />, initiated MSIV testing.

-940109 At 0207 hours0.0024 days <br />0.0575 hours <br />3.422619e-4 weeks <br />7.87635e-5 months <br />, completed MSIV testing.

940109 At 0220 hours0.00255 days <br />0.0611 hours <br />3.637566e-4 weeks <br />8.371e-5 months <br />, at 65% power initiated'a control rod pattern exchange.

940109 At 0335 hours0.00388 days <br />0.0931 hours <br />5.539021e-4 weeks <br />1.274675e-4 months <br />, completed the control rod pattern exchange.

-940109 At 0405 hours0.00469 days <br />0.113 hours <br />6.696429e-4 weeks <br />1.541025e-4 months <br />, began a return to full power.

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At the end of the reporting period the plant was operating-at 99.9% of rated thermal' power.

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I VYDPF-0411.04 l)

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