BVY-97-059, Monthly Operating Rept for Apr 1997 for Vermont Yankee Nuclear Station

From kanterella
(Redirected from ML20141C279)
Jump to navigation Jump to search
Monthly Operating Rept for Apr 1997 for Vermont Yankee Nuclear Station
ML20141C279
Person / Time
Site: Vermont Yankee Entergy icon.png
Issue date: 04/30/1997
From: Maret G, Wallin G
VERMONT YANKEE NUCLEAR POWER CORP.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
BVY-97-059, BVY-97-59, NUDOCS 9705160225
Download: ML20141C279 (6)
v • d • e


Text

. .-. -_- _ ._. __ .. , . . .-. .

l

,kER'MONT YANKEE l NUCLEAR POWER CORPORATION  !

1

- ^ P.O. Box 157, Governor Hunt Road f Vernon, Vermont 05354-0157 qxy ')

-(802) 257-7711 ,

. i l

l i

May,101997 l BVY-97-059 United States Nuclear Regulatory Commission ATTN: ' Document Control Desk Washington, D.C. 20555  ;

)

Reference:

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

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 the month of April.1997.

Sincerely, V ION,1 A KEENUCLEARPOWERCORPORATION y't,t Gregd Plant Manager cc: USNRC Region I Administrator .

USNRC Resident Inspector - VYNPS USNRC Project Manager - VYNPS

/

i 160043 lffll!Illfl!ll!IllIIllIIIlIIIIIIII0I 9705160225 970430 J PDR ADOCK 05000271' R PDR a

- - _ .. . . . .. . . - . _. . . - . . . . - - _ . _ . . . . _ . - - . ~ _ . _ . - _ -

P l

l I

VERMONT YANKEE NUCLEAR POWER STATION MONTHLY STATISTICAL REPORT 97-04 FOR TIIE MONTII OF APRIL 1997 l

l DP 0411 Rev. 6 l

[ Page 1 of 1 l

l l

l l

i l ,

l OPERATING DATA REPORT l ,

l l DOCKET NO.50-271 l DATE 970510 t

COMPLETED BY G.A. WALLIN l TELFDHONE (802)258-5414

! OPERATING STATUS

1. Unit Name: Vermont Yankee
2. Reporting Period: April
3. Licensed Thermal Power (MWt) :1593
4. Nameplate Rating (Gross MWe) : 540
5. Design Electrical Rating (Net MWe) : 522
6. Maximum Dependable Capacity (Gross MWe) - 531
7. Maximum Dependable Capacity (Net MWe). 510
8. If changes, occur in capacity ratings (Items Number 3 through 7) since last report, give reasons:
9. Power level to which restricted, if any(Net MWe) : N/A
10. Reasono for restrictions, if any: N/A This Month Yr-to-Date Cumulative
11. Hours in Reporting Period 719.00 2879.00 214007.00
12. Number Of Hours Reactor was Critical 560.17 2720.17 177686.30
13. Reactor Reserve Shutdown Hours 0.00 0.00 0.00
14. Hours Generator On-Line 560.17 2720.17 174394.00
15. Unit Reserve Shutdown Hours 0.00 0.00 0.00
16. Gross Thermal Energy Generated (MWH) 892273.30 4324155.50 261971288.60
17. Gross Electrical Energy Generated 307492.00 1492432.00 87543854.00
18. Net Electrical Energy Generated (MWH) 295759.00 1435581.00 83251470.00
19. Unit Service Factor 77.90 94.50 80.80
20. Unit Availability Factor 77.90 94.50 80.80
21. Unit Capacity Factor (Using MDC Net) 80.70 97.80 76.50
22. Unit Capacity Factor (Using DER Net) 78.80 95.50 75.00
23. Unit Forced Outage Rate 15.74 3.70 4.59
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 (pricr to commercial operation) : N/A Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION

, VYDPF 0411.01 DP 0411 Rev. 6 Page 1 of 1 RT No. 13.F01.19F

l AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-271 l UNIT Vermont Yankee

! DATE 970510

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

1. .

527 17. 528

2. 528 18. 528
3. 528 19. 528
4. 528 20. 528
5. 527 ,
21. 528
6. 528 22. 528
7. 528 23. 528
8. 528 24. 202
9. 528 25. 0 1
10. 529 26. 0
11. 529 27. 0 1
12. 529 28. 0
13. 528 29. 0 l
14. 528 30. O  ;

1

15. 528 31. -

l

16. 528 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 I DP 0411 Rev. 6 Page 1 of 1 RT No. 13.F01.18V

- . . ~ . _ _ _ - _ - __-- _____ .-. _ _ - - - _ - - .

. - t UNIT SHUTDOWNS AND POWER REDUCTIONS *

~

REPORT MONTH APRIL DOCKET NO 50-271 UNIT NAME Vermont Yankee DATE 970510 l COMPLETED BY G.A'. Wallin TELEPHONE (802)258-5414 ,

1 l 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 97-04 970424 F 26.62 B 3 97-08 RB CONROD Turbine Trip and Reactor Scram due to Instrument Calibration Problems -

97-04 970425 S 54.21 B 3 N/A CD VALVEX Mini-Outage Repairs 97-04 970427 F 78.00 B 3 N/A EB l TRANSF Mini-Outage Repairs 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) t E-Operator Training and i License Examination 5 Exhibit I - Same Source VYDPF 0411.03 F-Administrative i DP 0411 Rev. 6 G-operational Error (Explain)  !

Page 1 of 1 H-Explain i

i i 1 4

. ., I DOCKET NO. 50-271 DATE 970510 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 REPORT MONTH April

SUMMARY

OF OPERATING EXPERIENCES Hichlichts Vermont' Yankee operated at 77.9% of rated thermal power for the month.

Gross' electrical generation was 307,492 MWHe or 78.3% design electrical capacity'.

Ooeratina Summarv 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 99.8% I of rated thermal power. I 970424 At .0910 hours0.0105 days <br />0.253 hours <br />0.0015 weeks <br />3.46255e-4 months <br />, turbine tripped and reactor scrammed due to instrument t

calibration problems. (See Unit Shutdowns and Power Reductions) 970425 At 1147 hours0.0133 days <br />0.319 hours <br />0.0019 weeks <br />4.364335e-4 months <br />, initiated mini-outage. (See Unit Shutdowns and Power Reductions) l l

l l

l l

l l

At the end of the reporting period the plant was operating at 00.0% of rated thermal power.

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

._~ . , . . . . . . _. - . - - . _ . _ _ _ _ .- __ _, . _ _.

Retrieved from "https://kanterella.com/w/index.php?title=BVY-97-059,_Monthly_Operating_Rept_for_Apr_1997_for_Vermont_Yankee_Nuclear_Station&oldid=3452859"