ML20065P149

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Monthly Statistical Rept for Nov 1990 for Vermont Yankee Nuclear Power Station
ML20065P149
Person / Time
Site: Vermont Yankee Entergy icon.png
Issue date: 11/30/1990
From: Murphy W, Wallin G
VERMONT YANKEE NUCLEAR POWER CORP.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
VYV-90-383, NUDOCS 9012130132
Download: ML20065P149 (7)
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7 101 MONT YANKICIC NUCLICAR POWICR CORPOR ATION P. O. BOX 157 GOVI IINOlt HUNT I OAD YERNON, VERMONT 05354 December 10, 1990 VYV 90- 383 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555

Dear Sir:

Submitted herewith is the Monthly Statistical Report for the Vermont Yankee Nuclear Power Station for the month of November, 1990.

Very truly yours, VERMONT YANKEE NUCLEAR POWER CORP.

$w- -- $"

Warren P. Murphy Senior ice President, Operations cc: 1) USNRC Region I 475 Allendale Road King of Prussia, PA 19406

2) USNRC Resident Inspector, VYNPS DP 0411 Rev. 3 Page 1 of 1 t,

9012130132 901130

{DR ADOCK 05000271 PDC rG1.y ie t

i VERMONT YANKEE NUCLEAR POWER STATION MONTHLY STATISTICAL REPORT 90-11 FOR THE MONTH OF NOVEMBER, 1990 i

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! DP 0411 Rev. 3 Page 1 of 1 l

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OPERATING DATA REPORT-DOCKET NO. 50-271

  • DATE 901210 COMPLETED BY G.A. Wallin TELEPHONE (802)257-7711 OPERATING STATUS
1. Unit Name: Vermont Yankee NOTET:
2. Reporting Period: November
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. bower 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 720.00 8016.00 -----
12. Number Of Hours Reactor was Critical 698.97 6778.77 127444.63
13. Reactor Reserve Shutdown Hours 0.00 0.00 0.00
14. Hours Generator On-Line 690.37_ 6650.53 124627.60
15. 11 nit Reserve Shutdown Hours 0.00 0.00 0.00
16. oss Thermal Energy Generated (MWH)1073579.50 10160500.50 184170057.00
17. bcoss Electrical Energy Generated 359723.00 ~ 3408892.00 61362781.00
18. Net Electrical Energy Generated (MWH)345140.00 3247317.00 58263016.00
19. Unit Service Factor 95.88 82.96 78.15
20. Unit Availability Factor 95.88 82.96 78.15
21. Unit Capacity Factor (Using MDC Net) 95.11 80.38 72.49
22. Unit Capacity Factor (Using DER Net) 93.26 78.81 71.08
23. Unit Forced Outage Rate _

4.12 2.33 5.55 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 VYDPF 0411.01 DP 0411 Rev. 3 Page 1 of 1 RT No. 13.F01.19F i

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-271 UNIT Vermont Yankee DATE 901210 COMPLETED BY G.A. Wallin TELEPHONE (802)257-7711 MONTH November DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 3 1. 514 17, 515

2. 514 18, 511
3. 514 19. 513 4, 27 20. 514
5. 153 21. 516
6. 389 22, 514
7. 475 23. 514
8. 302 24. 514
9. 514 25. 511
10. 514 26. 512
11. 511 27, 511
12. 514 28. 512
13. 514 29. 511
14. 514 30. 512
15. 514 31.
16. 514 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. 3 Page 1 of 1 RT No. 13 F01.18V

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UNIT SHUTDOWNS AND POWER REDUCTIONS DOCEET NO $0-271 REPORT MONTH NOVEMBER UNIT NAME vermont Yankee .

DATE 901210 COMPLETED ST G.A. Wallin

  • TELEPHONE 18023257-7711 1 2 Method of License System Component cause and corrective Type Duration Reason Shutting Down Event Code Code Action to No. Date thours) Reactor 3 Report # 4 S Prevent Recurrence F 29.63 A 3 90-15 HA MEC/UN Turbine tripped causing a reactor 90-10 901104 scram due to an emergency governor switch malfunction.

0.00 H N/A S/A RB CONROD Rod Pattern Adjustment.

90-11 901107 5 2 Reason: 3 Method: 4 Eshibit G- Instructions 1 F: Forced for Preparation of Data S: Scheduled A-Equipment Failure (Explain)- See LER 90-15 1- Manual B-Maintenance or Test 2- Manual Scram Entry Sheets for Licensee C-Refueling 3- Automatic Scram Event Report (LER) File D-Regulatory Restriction 4- Other (Explain) (NUREG 0161)

E-operator Training and License Examination F-Administrat*<e 5 Exhibit I - Same Source VYDPF 0411.03 G-Operatioeal Error (Explain)

OP 0411 Rev. 3 H-(Erri. Int Page 1 of 1

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DOCKET NO. 50-271

- -ba UNIT > Vermont Yankee DATE 901210 COMPLETED BY G.A. Wallin-TELEPHONE (802)257-7711 REPORT MONTH November l

SUMMARY

.0F OPERATING EXPERIENCES l Highlights

Vormont Yankee operated at 93.6% of-rated-thermal power for the month. 1 Gross electrical generation was 359,723 MWHe or 92.5% design electrical i capacity.

Operating Summary Tha .following is a chronological descri ption of plant operations including other: pertinent items of interest for t1e months i

At'the beginning of the reporting period the plant was operating at 99.9%

of-rated thermal power.

'901104 At 0120 hours0.00139 days <br />0.0333 hours <br />1.984127e-4 weeks <br />4.566e-5 months <br />, the turbine _ tripped and the reactor scrammed. (See j Unit Shutdowns and Power Reductions) l 901104 At 2222' hours, the' reactor was critical. l l< .901105 At'0658 hours0.00762 days <br />0.183 hours <br />0.00109 weeks <br />2.50369e-4 months <br />, the turbine-generator was phased to the grid and a return to full' power was initiated.

901107 LAt 1600. hours, reducing power to 75% to perform a rod pattern adjustment. "(See Unit Shutdowns.and Power Reductions) i

'901107 At 1755 hours0.0203 days <br />0.488 hours <br />0.0029 weeks <br />6.677775e-4 months <br />, completed the rod pattern adjustment and a return to full-power.was initiated.

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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 DP 0411 Rev.:3 Page 1 of 1

_RT No. 13.F01.18X 0 _ _ - . _ _ _ _ . _ _ . _ _ _ _ . _ _ _ _ . _ _ _ _ _ _ _ _ _

DOCKET NO. 50-271 5 DATE 900710

'* . COMPLETED BY G.A. Wallin TELEPHONE (802)257-7711 OPERATING STATUS i 1. Unit Names Vermont Yankee NOTES:

2.. Reporting Period: June

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 (Itecs Number 3 through 7)since last report, give reasons:

N/A

9. Power level to which restricted, ifany(Neg,MWe): N/A
10. Reasons for restrictions, if any: /

N/Apr w #"'N

, j. t This Month Yr-to-Date Cumulative

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11. Hours In Reporting Period 720.00 4343.00 j
12. Number Of Hours Reactor was Critical 690.80 4180.32 124850.18
13. Reactor Reserve Shutdown Hours 0.00 0 .00 _ amqQ_k
14. Hours Generator On-Line 682.57 4098.19_ 122075.25- M
15. Unit Reserve Shutdown Hours 0.00 H0.00 0.00 {
16. Gross Thermal Energy Generated (MWH)1046693.50 6416675.00 180426231.50 1
17. Gross Electrical Energy Generated _349204.00 2167559.00 60121448.00
18. Net Electrical Energy Generated (MWH)330064.00 2371428.00 57089127.00

'19. Unit Service Factor 94.75 94.35 78.35

20. Unit Availability Factor 94.75 94.35 78.35
21. Unit Capacity Factor (Using MDC Net) 90.96 94.73 __

72.70

22. Unit Capacity Factor (Using DER Net) 89.18 92.88 71.29
23. Unit Forced Outage Rate 5.20 3.06 5.63
24. Shutdowns scheduled over next 6 months (Type, Date, and Duration of Each): 1990 Refueling Outage scheduled to begin on September 1, 1990 j and conclude on October 13, 1990. f L

25.

26.

If shut down at end of report period, estimated date of startup: N/A Units In Test Status (prior to commercial operation): N/A j f

Forecast Achieved j INITIAL CRITICALITY /

INITIAL ELECTRICITY /

COMMERCIAL OPERATION /

DP 9411 Rev. 3 /

Pago 1 of 1 ", /

RT No. 13.F01.19F *"

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