ML20212P612

Monthly Operating Rept for Feb 1987

ML20212P612
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	02/28/1987
From:	Murphy W, Wallin G VERMONT YANKEE NUCLEAR POWER CORP.
To:	NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
VYV-87-051, VYV-87-51, NUDOCS 8703160169
Download: ML20212P612 (6)

Text

~

,),-

VERMONT YANKEE NUCLEAR POWER STATION

' MONTHLY STATISTICAL REPORT 87-02 FOR THE MONTH OF FEBRUARY, 1987 i

f\m\

~

8703160169 870228 PDR ADOCK 05000271 R PDR

OPERATING DATA REPORT DOCKET NO. 50-271 P DATE- 870310 COMPLETED BY G.A. Wallin TELEPHONE (802) 257-7711 i-l OPERATING STATUS Notes:

1.- Unit Names Vermont Yankee

2. Reporting Period: February

3. Licensed Thermal Power (MWt): 1593

[ 4. Nameplate Rating (Gross MWe): 540

j. 5. Design Electrical Rating (Not MWe):514(oc) 504(cc)

6. Maximus Dependable Capacity (Gross MWe): 535 1

7. Maximum Dependable Capacity (Not MWe): 504 L 8. If changes occur in capacity ratings (Items Number 3 through 7) since last report, give reasons:

N/A i

9. Power level to which restricted, if any (Not MWe): N/A

10. Reasons for restrictions, if any: N/A This month Yr-to-Date Cumulative

11. Hours in Reporting Period 672.00 1416.00 ------

, 12. Number of Hours Reactor was Critical 672.00 1416.00 98886.73

$ 13. Reactor Reserve Shutdown Hours 0.00 0.00 0.00 l- 14. Hours Generator On-Line 672.00 1416.00 96394.69 I 15. Unit R rve Shutdown Hours 0.00 0.00 0.00

16. Gross E rmal Energy Generated (MWH)

Avoeu. . vu u=vove.ov i=vvive==.vu 4

17. Gross Electrical Energy Generated (MWH) 359326.00 760770.00 46889604.00

18. Net Electrical Energy Generated (MWH) 344782.00_ 729952.00 44488628.00

19. Unit Service Factor 100.00 100.00 76.16

20. Unit Availability Factor 100.00 100.00 76.16

, 21. Unit capacity Factor (using MDC Net) 101.80 102.28 69.74

22. Unit Capacity Factor (using DER Net) 99.82 100.29 68.38

23. Unit Forced Outage Rate- 0.00 0.00 6.60 l 24. Shutdowns scheduled over next 6 months (Type, Date and Duration of Each):

1987 Refuelino Outaae scheduled to beain on Auaust 8, 1987 and continue

! throuah October 2, 1987.

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

f. INITIAL CRITICALITY VYDPF 0411.01 INITIAL ELECTRICITY Original COMMERCIAL OPERATION

/

"~ "

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-271 UNIT Vermont Yankee DATE 870310 COMPLETED BY G.A. Wallin i TELEPHONE (802) 257-7711 MONTH February DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 .

515__ __

17 519 2 518 18 519 3 519 19 519 4 520 20 519 5 519 21 519 6 518 22 515 7 409 23 519 8 480 24 519 9 519 25 518 10 519 26 519 11 519 27 519 12 519 28 519 13 519 29 ---

14 519 30 ---

15 516 31 ---

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 Original i

5 DOCKET NO. 50-271 UNIT NAE Vermont Yankee UNIT SHUTDOWNS AND POWER REDUCTIONS DATE 870310 COMPLETED BY G. A. Wallin REPORT MONTH February TELEPHOE (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 #

87-02 870207 S 0.00 B 4 N/A RB ZZZZZZ Power reduction for Turbine Power Bypass Valve testing.

Reduction 87-02 870207 S 0.00 B,H* 4 N/A RB CONROD Power reduction for a Control Roc Power Pattern exchange and surveillance Reduction testing.

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)

F-Administrative 5 VYDPF 0411.03 G-Operational Error (Explain) Exhibit I - Same Source Original

• H-Other (Explain) - Control Rod Pattern Exchange

g DOCKET NO. 50-271 UNIT V:rmont Yankee DATE 870310 C0tn.CTED BY G.A. Wallin TELEPHONE (802) 257-7711 REPORT MONTH February SU N RY OF OPERATING EXPERIENCES Highlights Vermont Yankee operated at 98.9% of rated thermal power for the month.

Gross electrical generation was -'59,326

, MWH e

or 99.0% of design 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 99.9% of rated thermal power.

870207 At 0825 hours0.00955 days <br />0.229 hours <br />0.00136 weeks <br />3.139125e-4 months <br />, reduced power to 80% to perform turbine bypass valve testing. (See Unit Shutdowns and Power Reductions) 870207 At 0835 hours0.00966 days <br />0.232 hours <br />0.00138 weeks <br />3.177175e-4 months <br />, completed turbine bypass valve testing. Reduced power to minimum recirculation flow. -

870207 At 0903 hours0.0105 days <br />0.251 hours <br />0.00149 weeks <br />3.435915e-4 months <br />, initiated control rod exercising and turbine surveillance.

870207 At 0920 hours0.0106 days <br />0.256 hours <br />0.00152 weeks <br />3.5006e-4 months <br />, tripped the "A" recirculation pump for K1 set brush replacement.

870207 At 1103 hours0.0128 days <br />0.306 hours <br />0.00182 weeks <br />4.196915e-4 months <br />, completed control rod exercising and turbine sur-veillance; initiated a rod pattern exchange. (See Unit Shutdowns and Power Reductions) 870207 At 1218 hours0.0141 days <br />0.338 hours <br />0.00201 weeks <br />4.63449e-4 months <br />, completed the rod pattern exchange.

870207 At 1255 hours0.0145 days <br />0.349 hours <br />0.00208 weeks <br />4.775275e-4 months <br />, started the "A" recirculation pump and a return to full power was initiated.

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

VYDPF 0411.04 Original

,,. 4 VERMONT YANKEE NUCLEAR POWER CORPORATION P. O. BOX 157 GOVERNOR !!UNT ROAD VERNON, VERMONT 05354 VYV 87- 051 March 10, 1987 i

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 Report for the Vermont Yankee Nuclear Power Station for the month of February, 1987.

Very truly yours, VERMONT YANKEE NUCLEAR POWER CORP.

b NM Warren P. Murphy Vice President and Manager of Operations WPH/ TAW / mmh:MSR1.1/MSR VYDPF 0411 Original h

I i i