ML19305D669

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Monthly Operating Rept for Mar 1980
ML19305D669
Person / Time
Site: Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date: 04/11/1980
From: Beers F
VERMONT YANKEE NUCLEAR POWER CORP.
To:
Shared Package
ML19305D668 List:
References
NUDOCS 8004150361
Download: ML19305D669 (6)
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Text

{{#Wiki_filter:~ l VERMONT YANKEE NUCLEAR POWER STATION MONTHLY STATISTICAL REPORT 80-03 FOR THE MONTH OF MARCH, 1980 8004150 %

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                                           .                OPERATING DATA REPORT                                                      -

DOCKET NO. 50-271 

                                                                                                                                     ' DATE 800411 CO51PLETED BY             F. C. Beers TELEPHONE 617 '466 0011 X2215 l OPERATING STATUS -                      -                                                                             ,

Vermont Yankee . Notes - I. Urdt Name:

2. Reporting Period: March 1980 ,

1593

3. Licensed Thermal Power (51Wt): -
4. Namepiste Rating (Gross 31We): 540 j
5. Design Electrical Rating (Net 51We): 514 (open) 504 (closed ) s.
6. 51sximum Dependable Capscity (Gross 5tWe): 535' .'

50 4

7. 5!sximum Depends'ble Capacity (Net SIWE):
8. If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report. Give Reasons: l
                     ~
9. Power Level To Which Restricted. If Any (Net 51We):
10. Ressons For Restrictions.If Any: l t

This Sionth Yr.to.Date Cumulative

11. Hours !n Reporting Period 744 2.184 _ --
12. Number Of Hours Reactor Was Critical 721.5 2,056.3 53,214.69 -

0 0 0

13. Reactor Resene Shutdown Hotra
14. Hours Gener: tor On.Line 721.5 2.032.1 51.359.88 l
15. Unit Reserve Shutdown Hours 0 0 0  !
16. Gross Therms! Energy Generated (51WH) 1,142,171.5 3.108.136.5 -72.332.749.5 -{
17. Gross Electrical Energy Genersted (51WH) 392,664 , _ ,

1.065,240 24.034,910  ; 376,988 1,022,439 22,790,804  ;

18. Net Electrical Energy Generated (51WH)
19. Unit Service Factor .

97 93 77.8

20. Unit Availability Factor 97 93 77.8  ;
21. Unit Capacity Factor (Using 5tDC Net) 100.5 92.9 68.5
22. Unit Capacity Factor (Using DER Net) 98.6 91.1 67.2
23. Unit Forced Outs;e Rate 0 1.3 6.3
24. Shutdowns Scheduled Over Next 6 Stanths (Type.Date.snd Duration of Each1:

April 2, 1980

25. If Shut Down At End Of Report Period. Estimated Date of Startup: -

Forecast Achieved

26. Units !n Test Status (Prior to Commercial Operatiq INITIA L CRITICA LITY j INITIA L ELECTRICITY COstStERCIAL OPERATION' k

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                                .      .                                                                                                                    *(4/77) l
                  ,    ,                                             ,         - , , .         - - - -   - - , - - - -     ,.m,,            .    ,      - ,

AVERAGE DAILY UNIT POWER LEVEL . DOCKET NO. 50-271 UNIT Vemont Yankee DATE 800411 C05fPLETED BY F. C. Beers TELEPHONE 617-366-9011 X2215' 5!ONTH March 1980 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (31We-Net) (51We Net) 1 526 *17 525 2 517 13 525 3 525 39 526 4 525 20 525  ! 5 525 21 525 6 525 525 22 525 519 7 23 525 525 1 8 24 ' 520 525 9 25 10 526 525 26 II 525 27 525 12 525 524 28 13 525 524 29 34 525 30 505 ' 15 525 33 0 16 513 INSTRUCTIONS On this formst. list the sverage dtily unit power level in 11We-Net for each day in the reporting inonth. Compute to , the nearest whole megswatt. (9/77) 4 , b

DOCK ET NO. 50-271 UNITSIIUTDOWNS AND POWER REDUCTIONS UNIT NAM E Vermont Yankee I) ATE 800411 . COMPLETED liY F. C. Beers REPORT Af0NTig March 1980 TELEPilONE 617-366-9011 X2215. c 2 e c. 8 

                                                                               ~3 -. E
                                                                               -o .s 'g    Licensee         c 't.

5* c ., Cause & Currective No. Date g 3g  ;; ,g g cc Event :s ? $3 A,.iion io

  • 5, j di y Repos * 'N0 c$ E yO Prevent itecussence d
  • 80-9 800330 S 22.5 B- 1 N/A HD VALEX Main Steam Valve which isolates the steam supply to the main turbine steam se'al regulator was leaking steam to the atmosphere. Valve was replaced with piping.

I 2 - 3

4 F
Fosted Reason: Method: Exhibii G - Instructions i S: Scheduled A !?einipment Failure (Explain) I Manual for heparation of D.na i

n-Maintenance or Test 7 Manual Sesam. Episy Sheets l'on 1.ieensee C Itefueling 3 Automatic Scram. Event Itepins (Llilt) 17de (NUltl'.G. , D Regulaimy Resisiction 4 Other (Emplain) 0161) E-Opes.iior Tsaining& License Examination II Ailminitisalive 5 ! G O i <sational I.esus (Emplain) Exhil.it I Same Sumee t'8/17) II.Uthes (limplain) e _.______m - 

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DOCKET NO. 50-271 '. UNIT Vermont Yankee DATE 800411 C0!4PLETED BY F. C. Beers , TELEP110NE 617-366-9011 X2215 SAFETY RELATED !!AINTENANCE MARCII 1980 , NATullE OF LER CR OUTAGE ilALFUNCTION EQUIPMENT MAINTENANCE NUf1BER CAUSE  !!ESULT C0ltlECTIVE ACTION RCIC Testable Check Corrective N/A Normal operation Leakage Replaced gaskets Valve V-13-22 MR 80-238 APRM "B" Corrective N/A Failed relay APRM tripped Replaced relay coil MR 80-275 coil llPCI Time Delay Relay Corrective N/A Worn parts Timer set point Replaced relay 23A-K48 MR 80-277 drift (Did not exceed Tech. Spec. limit) 

   "A" Diesel Generator             Corrective        N/A         Normal use              Clogged filter         Replaced filter Fuel Oil Filter                  MR 80-325 "A" Diesel Generator             Corrective        N/A         Normal operation        Worn bearings          Replaced bearings Coolant Circulating Pump MR 80-326 IIPCI Flow Controller            Corrective        LER         Failed controller       Controller would       Replaced controller 23-108                           MR 80-351      80-13/3L                               not operate in 4                                                                                          automatic RilR Seismic Support             Corrective        LER         Improper                Hanger inadequate      Repaired as necessary RllR-li-83                       MR 80-363      80-12/IP       installation Service Water Support            Corrective        LER         Improper                Hanger inadequate      Repaired as necessary RSW-l!-168                       MR 80-364      80-12/IP       installation

b DOCKET NO. 50-271 UNIT Vermont Yankee DATE 800411 COMPLETED BY F. c. Beers TELEPHONE 617-366-9011 X2215 REPORT MONTH March 1980 SU'BIARY OF OPERATING EXPERIENCES Highlights  ; Vermont Yankee operated at 96.4% of rated thermal power for the month. Gross electrical generation was 392,664MWH or 97.7% of design electrical capacity. Operating Summary The following is a chronological description of plant operations including other pertinent items of interest for the month: 3/1/80 At the beginning of the reporting perio,d, the plant was operating at 99.8% of rated thermal power. 3/30/80 At 2200 hours a shutdown was cornmenced to repair leaking steam valve V60-13, 3/31/80 At 0126 hours the turbine was taken off the grid.  ! At the end of the reporting period, the plant was shutdown. 

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