ML20072V060
| ML20072V060 | |
| Person / Time | |
|---|---|
| Site: | Vermont Yankee File:NorthStar Vermont Yankee icon.png |
| Issue date: | 08/31/1994 |
| From: | Reid D, Wallin G VERMONT YANKEE NUCLEAR POWER CORP. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| BVY-94-92, VY-RCE-94-022, VY-RCE-94-22, NUDOCS 9409190158 | |
| Download: ML20072V060 (6) | |
Text
.
VERMONT YANKEE
]
. NUCLEAR POWER CORPORATIO.N i
i l
{.
e3' P.O. Box 157. Governor Hunt Road y
vernon, vermont 05354-0157 I-x (802) 257-7711 3-1 i-September 10,1994 VY-RCE-94-022 BVY 94-92
.i U.S. Nuclear Regulatory Commission.
Attn:
Document Control Desk.
]
Washington,' D.C. 20555
.i
Reference:
a)
License No. DPR-28 (Docket No. 50-271).
i In accordance with section 6.7.A~.3 of the Vermont Yankee Technical' l
Specifications, submitted herewith is the Monthly Statistical Report for the Vermont Yankee Nuclear Power Station for the month of Aueust.1994.
. Sincerely, i
.[
Vermont Yankee Nuclear Power Corp.
l b
Donald A. Reid l
Vice President, Operations j
cc:
USNRC Region I Administrator USNRC Resident Inspector - VYNPS USNRC Project Mananger - VYNPS 7,n $vb gu
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9409190158 940831 1 }
4-PDR ADOCK 05000271
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VERMONT YANKEE NUCLEAR POWER STATION MONTIILY STATISTICAL REPORT 94-08 l
FOR TIIE MONTII OF AUGUST 1994 l
I l-DP 0411 Rev. 5 Page1 of1 1
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OPERATING DATA REPORT DOCKET NO.50-271 DATE 940910 COMPLETED BY G.A.
WALLIN TELEPHONE (802)257-7711 OPERATING STATUS 1.
Unit Name:
Vermont Yankee 2.
Reporting Period:
August NOTES:
- 3. Licensed Thermal Power (MWt):1593
- 4. Nameplate Rating (Gross MWe) : 54Q
- 5. Design Electrical Rating (Net MWe):
514 (oc) 504 (cc)
- 6. Maximum Dependable Capacity (Gross MWe):
5.J_E
- 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 744.00 5831.00 190655.00
- 12. Number Of Hours Reactor was Critical 744.00 5790.12 157007.53
- 13. Reactor Reserve Shutdown Hours 0.00 0.00 0.00
- 14. Hours Generator.On-Line 744.00 5774.17 153889.79
- 15. Unit Reserve Shutdown Hours 0.00 0.00 0.00
- 16. Gross Thermal Energy Generated (MWH) 1172572.10 9103540.20 229809211.70
- 17. Gross Electrical Energy Generated 387178.00 3053516.00 76572898.00-
- 18. Net Electrical Energy Generated (MWH) 366153.00 2917491.00 72764515.00
- 19. Unit Service Factor 100.00 99.03 80.00
- 20. Unit Availability Factor' 100.00 99.03 80.00 i
l
- 21. Unit Capacity Factor (Using MDC Net) 97.65 99.27 75.05
- 22. Unit Capacity Factor (Using DER Net) 95.75 97.34 73.59
- 23. Unit Forced Outage Rate 0.00 0.97 5.03
- 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 i
INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION VYDPF 0411.01 DP 0411 Rev. 5 Page 1 of 1 RT No. 13.F01.19F
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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-271 UNIT Vermont Yankee DATE 940910 COMPLETED BY G.A.
WALLIN TELEPHONE (802)257-7711 MONTH August DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)
(MWe-Net) 1.
385 17.
497 2.
454 18.
504 3.
491 19, 504 4.
487 20.
505 5.
491 21.
502 6.
496 22.
511 7.
496 23.
510 8.
-495 24.
507 9.
492 25, 501 10.
491 26.
-496 11.
493 27.
501 12.
489 28.
498 13.
489 29.
501 14.
488 30.
502 15.
497 31.
489 16.
495 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 DP 0411 Rev. 5 Page 1 of 1 RT No. 13.F01.18V
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UNIT SHUTDOWNS AND POWER REDUCTIONS REPORT MONTH AUGUST DOCKET NO 50-271 UNIT NAME Vermont Yankee DATE 940910 COMPLETED BY G.A.
Wallin' TELEPHONE (802)257-7711 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 94-07 940801 F
0.00 A
4 N/A WE HTEXCH West cooling tower (cont)
Power structural damage Reduction repaired 94-08 940831 F
0.00 A
4 N/A CB PUMPXX "A"
recirculation pump Power trip. Presently Reduction investigating cause.
1 F: Forced 2 Reason:
3 Method:
4 Exhibit G-Instructions S: Scheduled A-Equipment Failure (Explain) 1 - Manual for Preparation of Data i
f B-Maintenance or Test 2 - Manual Scram Entry Sheets for License l
C-Refueling 3 - Automatic Scram Event Report (LER) File D-Regulatory Restriction 4 - Other (Explain)
E-Operator Training and License Examination 5 Exhibit I - Same Source VYDPF 0411.03 F-Administrative DP 0411 Rev. 5 G-Operational Error (Explain)
Page 1 of 1 H-(Explain) i I
I
f.
DOCKET NO. 5 0 - 2 71 DATE 940910 COMPLETED BY G. A. WALLIN TELEPHONE (802.1257-7711 REPORT MONTH August
SUMMARY
OF OPERATING EXPERIENCES Hichlights Vermont Yankee operated at 98,.9% of rated thermal power for the month.
Gross electrical generation was 387.178 MWHe or 96.4% design electrical capacity.
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 79.4.1 of rated thermal power.
940801 At 1915 hours0.0222 days <br />0.532 hours <br />0.00317 weeks <br />7.286575e-4 months <br />, began a return to full power following West cooling tower structural damage repairs.
(See Unit Shutdowns and Power Reductions) l 940831 At 2255 hours0.0261 days <br />0.626 hours <br />0.00373 weeks <br />8.580275e-4 months <br />, the "A"
recirculation pump tripped.
(See_ Unit Shutdowns and Power Reductions) 4 940831 At 2259 hours0.0261 days <br />0.628 hours <br />0.00374 weeks <br />8.595495e-4 months <br />, initiated a power reduction'to exit instability region II.
i s
l At the end of the reporting period the plant was operating at 51.0% of rated thermal power.
VYDPF 0411.04 DP 0411 Rev. 5 Page 1 of 1 RT No. 13.F01.18X r
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