BVY-97-088, Monthly Operating Rept for June 1997 for Nynps

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Monthly Operating Rept for June 1997 for Nynps
ML20141H097
Person / Time
Site: Vermont Yankee Entergy icon.png
Issue date: 06/30/1997
From: Maret G, Wallin G
VERMONT YANKEE NUCLEAR POWER CORP.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
BVY-97-088, BVY-97-88, NUDOCS 9707220008
Download: ML20141H097 (6)
v • d • e


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I VERMONT YANKEE l NUCLEAR POWER CORPORATION .

w P.O. Box 157. Governor Hunt Road l

-vq{ Vernon. Vermont 05354-0157 (802) 257-7711

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July,101997 l BVY-97-088  ;

United States Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555

Reference:

(a) License No. DPR-28 (Docket No. 50-271) j 1

In accordance with section 6.7.A.3 of the Vermont Yankee Technical Specifications, submitted

herewith is the Monthly Statistical Report for the Vermont Yankee Nuclear Power Station for I

the month of June.1997.

Sincerely, VERMONT YANKEE NUCLEAR POWER CORPORATION

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} l cc: USNRC Region I Administrator USNRC Resident Inspector - VYNPS USNRC Project Manager - VYNPS h

kkk,\hkkhkh * , i . l 9707220008 970630 PDR ADOCK 05000271 R PDR

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VERMONT YANKEE NUCLEAR POWER STATION l

MONTIILY STATISTICAL REPORT 97-06 j FOR THE MONTH OF JUNE 1997 DP 0411 Rev. 6 Page1 of1 O

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OPERATING DATA REPORT

,S DOCKET NO.50-271

(  ;-

  • DATE 970710 ,

COMPLETED BY G.A. WALLIN '

TELEPHONE (802)258-5414 OPERATING STATUS

1. Unit Name: Vermont Yankee I
2. Reporting Period: June
3. Licensed Thermal Power (MWt):1593  !
4. Nameplate Rating (Gross MWe) : 510
5. Design Electrical Rating (Net MWe) : 522
6. Maximum Dependable Capacity (Gross MWe): 531 l
7. Maximum Dependable Capacity (Net MWe) :

510

8. If changes, occur in capacity ratings (Items Number 3 through 7) since ,

last report, give reasons: I l

9. Power level to which restricted, if any(Net MWe): N/A

(T10. Reasons for restrictions, if any: N/A

\_)

This Month Yr-to-Date Cumulative I'

11. Hours in Reporting Period 720.00 4343.00 215471.00
12. Number Of Hours Reactor was Critical 720.00 4037.54 179004.20
13. Reactor Reserve Shutdown Hours 0.00 0.00 0.00
14. Hours Generator On-Line 720.00 4006.04 175679.94
15. Unit Reserve Shutdown Hours 0.00 0.00 0.00 l
16. Gross Thermal Energy Generated (MWH) 1143212.60 6357061.40 264004194.80  !
17. Gross Electrical Energy Generated 383095.00 2180476.00 88231898.00 I
18. Net Electrical Energy Generated (MWH) 362413.00 2090448.00 83906337.00 l
19. Unit Service Factor 100.00 92.20 80.90
20. Unit Availability Factor 100.00 92.20 80.90 l
21. Unit Capacity Factor (Using MDC Net) 98.70 94.40 76.60
22. Unit Capacity Factor (Using DER Net) 96.40 92.20 75.10_
23. Unit Forced Outage Rate 0.00 5.90 4.64
24. Shutdowns scheduled over next 6 months (Type, Date, and Duration of Each: N/A *
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 INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION (3

( jDPF 0411.01 DP 0411 Rev. 6 l Page 1 of 1

RT No. 13.F01.19F l

.f AVERAGE DAILY UNIT POWER LEVEL

,f3 DOCKET NO. 50-271 J

UNIT Vermont Yankee DATE 970710 -

COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 MONTH June DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net)

1. 525 17. 505
2. 526 18. 497
3. 519 19. 494
4. 524 20. 493
5. 523 21, 490
6. 519 22. 489
7. 517 23. 493

- 8. 514 24. 495

'V 9 . 512 25. 492

10. 508 26. 491
11. 473 27. 497
12. 506 28. _497
13. 497 29. 493 14, 505 30. 492 15, 908 31. ---
16. 508 l

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 j megawatt. '

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.VYDPF 0411.02 l DP 0411 Rev. 6 )

Page 1 of 1

/N.RT No. 13.F01.18V

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UNIT SHUTDOWNS AND POWER REDUCTIONS REPORT MONTH JUNE DOCKET NO 50-271 UNIT NAME Vermont Yankee DATE 970710 -

COMPLETED BY G.A. Wallin TELEPHONE (802)258-5414 1 2 3 4 5 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

^

97-05 970611 S 0.00 B,H* 4 N/A RB CONROD Scram Solenoid Pilot Power Valve replacement, Reduction Single rod scram testing, and a rod pattern adjustment.

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 License Examination 5 Exhibit I - Same Source VYDPF 0411.03 F-Administrative DP 0411 Rev. 6 G-Operational Error (Explain)

Page 1 of 1 *H-Explain - Rod Pattern Adjustment

,: e A DOCKET NO. 50-271-DATE 970710 COMPLETED BY G.A. WALLIN

() e REPORT MONTH June TELEPHONE (802)258-5414

SUMMARY

OF OPERATING EXPERIENCES Hichlichts Vermont Yankee operated at 99.7% of rated thermal power for the month ~.

Gross electrical generation was 383.095 MWHe or 97.4% design 1 electrical capacity.

Operatina Sgymary The followir. i 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.

970611 At 0400 hours0.00463 days <br />0.111 hours <br />6.613757e-4 weeks <br />1.522e-4 months <br />, initiated a power reduction to perform Scram Solenoid Pilot Valve replacement, single rod scram . testing and a rod pattern adjustment. .(See Unit Shutdowns and Power Reductions) 970611 At 0627 hours0.00726 days <br />0.174 hours <br />0.00104 weeks <br />2.385735e-4 months <br />, at 75% power began Scram Solenoid Pilot Valve

'(] replacement.

.%)

970611 At 0857 hours0.00992 days <br />0.238 hours <br />0.00142 weeks <br />3.260885e-4 months <br />, following Scram Solenoid Pilot Valve replacement, performed single rod scram testing and a rod pattern adjustment. j 970611 At 0927 hours0.0107 days <br />0.258 hours <br />0.00153 weeks <br />3.527235e-4 months <br />, began a return to full power.

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

VYDPF 0411.04 l DP 0411 Rev. 6 Page 1 of 1 RT No. 13.F01.18X

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