ML20206C507

Monthly Operating Rept for May 1986

ML20206C507
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	05/31/1986
From:	Murphy W, Wallin G VERMONT YANKEE NUCLEAR POWER CORP.
To:	NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
VYV-86-162, NUDOCS 8606190497
Download: ML20206C507 (7)

Text

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OPERATING DATA REPORT Docket No.

50-271 Date 860610 Completed by G.A. Wallin Telephone (802) 257-7711 OPERATING STATUS Notes:

1.

Unit Names Vermont Yankee 2.

Reporting Period:

May 3.

Licensed Thermal Power (MWt):

1593 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-Da te Cumulative

11. Hours in Reporting Period 744.00 3623.00

12. Number of Hours Reactor was Critical O.00 0.00 93111.06

13. Reactor Reserve 3hutdown Hours 0.00 0.00 0.00

14. Hours Generator On-Line 0.00 0.00 90718.35

15. Unit Reserve Shutdown Hours 0.00 0.00 0.00

16. Gross Thermal Energy Generated (MWH) 0.00 0.00 132109630.50

17. Gross Electrical Energy Generated (MWH) 0.00 0.00, 43955902.00

18. Net Electrical Energy Generated (MWH) 0.00 0.00 41700250.00

19. Unit Service Factor 0.00 0.00 75.58

20. Unit Availability Factor 0.00 0.00 75.58

21. Unit Capacity Factor (using MDC Net) 0.00 0.00 68.94

22. Unit Capacity Factor (using DER Net) 0.00 0.00 67.59

23. Unit Forced Outage Rate 0.00 0.00 6.92

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

Refueling outage began September 21,1985 for 40 weeks.

25. If shut down at end of report period, estimated date of startup June 26, 1986

26. Units in Test Status (prior to commercial operation): N/A Forecast Achieved Initial Criticality VYDPF 0411.01 Initial Electricity Original Comercial Operation 8606190497 860531 PDR ADOCK 05000271 R

PDR Y o

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AVERAGE DAILY UNIT POWER LEVEL Occket No.

50-271 Unit Vermont Yankee Date 860610 Completed by G.A. Wallin Telephone (802) 257-7711 MONTH May DAY AVERAGE DAILY POWER LEVEL

[AY AVERAGE DRILY POWER LEVEL j

(MWe-Net)

(MWe-Net) 1 0

17 0

2 0

18 0

i 3

0 19 0

4 0

M 0

5 0

21 0

6 0

22 0

7 0

23

- 0 8

0 24 0

9 0

25 0

10 0

26 0

11 0

27 0

12 0

28 0

13 0

29 0

f 14 0

30 0

15 0

31 0

l 16 0

1 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 Original i

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Docket No.

50-271 Unit Vermont Yankee UNIT SiUTDOWNS AND POWER REDUCTIONS Date 860610 Completed by G. A. Wallin REPORT K) NTH May Telephone (802) 257-7711 1

2 3

4 5

No.

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

Shutting Down Event Code Code Prevent Recurrence Reactor Report #

85-14 860501 S

744 C

1 N/A N/A N/A 1985/1986 RefuelingA4aintenance/

{

(cont:

Recirc Pipe Replacement Outage in progress.

l 1

2 3

4 F-Forced A-Equipment Failure (Explain)

Method:

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) q F-Administrative 5

i VYDPF 0411.03 G-Operational Error (Explain)

Exhibit I - Same Source Original H-Other (Explain)-

Docket No. 50-271 Unit Vermont Yanke's Date 860610 Completed by G.A. Wallin SAFETY-RELATED MAINTENANCE Telephone (802) 257-7711 EQUIPMENT NATURE OF LER OR OUTAGE ELFUNCTION CORRECTIVE ACTION 4

MAINTENANCE NtMBER CAUT RESLA_T Reactor Water. Clean-up Corrective N/A Worn Parts Draws excessive Replaced Pump Pump P49-1A MR 86-0784 current

• A* Emergency Diesel Corrective LER 84-22 Existing Relay /

N/A Replaced with Generator Differential MR 86-0468 Unqualified Qualified Relay Relay Condensate Storage Tank Corrective N/A Corrosion Tank Leakage Weld Repaired Tank MR 86-0532 WDPF 0411.04 Original

Docket No. 50-271 Unit Vermont Yankee Date 860610 Completed by G.A. Wallin Telephone (802) 257-7711 REPORT K) NTH May SLNMARY OF OPERATING EXPERIENCES Highlights Vermont Yankee operated at 0% of rated thermal power for the month.

Gross electrical generation was O

MWH or 0% of design e

electrical capacity.

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 0% of rated thermal power.

Throughout the reporting period, the plant was shutdown for the 1985/1986 Rt. fueling #aintenanceMecirc Pipe Replacement Outage.

At the end of the reporting period the plant was operating at 0%

of rated thermal power.

VYDPF 0411.05 Original

Figure I.

VERhiONT YANKEE NUCLEAR POWER CORPORATION P. O. BOX 157 GOVERNOR IIUNT ROAD VERNON, VERMONT 05354 VYV 86-162 June 10,1986 U. S. Nuclear Regulatory Coninission Director, Office of Management Information and Program Control Washington, D. C.

20555

Dear Sir:

Submitted herewith is the Monthly Statistical Report for the Vermont Yankee Nuclear Power Station for the month of May,1986.

Very truly yours, VERK)NT YANKEE NUCLEAR POWER CORP.

deu--

Warren P. Murphy (

Vice President and Manager of Operations WPM / TAW / mmh:MSR1.1A45R VYDPF 0411 Original M

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