ML19331C745

Monthly Operating Rept for Jul 1980

ML19331C745
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	08/06/1980
From:	Beers F VERMONT YANKEE NUCLEAR POWER CORP.
To:
Shared Package
ML19331C705	List: ML19331C704 ML19331C745
References
NUDOCS 8008190484
Download: ML19331C745 (7)

Text

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O VEF3.ONT YANKEE NUCLEAR P0b?.R STATION MONTHLY STATISTICAL REPORT S0-07 FOR THE MONTH OF JULY,1980 I

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J OPERA!!NG DATA Fl? ORT DOCKET NO. 50-271 DATE c0-05-06 COMPLETE 0 3Y F.C. Seers TILIPHONI617-366-9011 X2215 0?ERATING STATUS Notes i 1. Unit Name: Vermonc Yankee

2. Reporting ?eriod: July 1980 1593 1 3. Licensed Thermal ?cwer(MWt):

4 Namepla:e Ra:ing(Gross MWe): 540

5. Design Electriesl Rating (Ne: MWe): 514(open)504(closed)

6. Maxi =um Dependable Capacity (Gross MWe): 535 a

7. Max 1=us Dependable Capacity (Net MWe): 504 i

i 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): $$as!"ESOE.limitedduetoendofcycle

10. Reasons For Restrictions, If Any: ,

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i This Month Yr-to-Date Cunulative

- 11. Hours In Reporting Period 744 5,111 --

12. Number Of Hours Reactor Was Cri:1 cal 724.75 4,898.46 56.056.85 nn 0,0

13. Reactor Reserve Shutdown Hours 0.0

14. Hours Genera:or On-Line 714.00 4,832.60 54.160.38

15. Unit Reserve Shutdown Hours 0.0 nn 0.0

16. Gross Ther=al Energy Geners:ed(MWH) 1.070.586.00 7 37o 77s.nn 76,604,388.00

17. Gross Elec:rical Energy Genera:ed(MWH) 348, 966.00 2.490.768.00 25.460.438.00

- -n I 18. Net Elec:rical Energy Generated (MWH) 326.943.00 2.370.044.00 24 'to ano no

! 19. Uni: Service Factor 95.97 94.55 78.60

20. Uni: Availability Factor 95.97 o4.95 7a an l

21. Uni: Capacity Factor (Using MDC Net) 87.19 92.01 69.51 f

22. Unit Capacity Facter(Using DER Nec) 85.49 90.22 68.15

23. Uni: Forced Cutage Ratt 4.03 9 14 6.16 l

24. Shu:dewns Scheduled Over Nex: 6 Months (Type, Da:e, and Duration of Each):

Refuelin: Outaee scheduled to bee <- c- c# a-w.- 94 s o o n 2n d ._-411 v,e. -

c er aooreximatelv eicht weeks.

25. If Shu: D0wn At End Of Reper: ?eriod, Isti=ated Date of Startup:

26. Uni:s In Tes: Status (Frior :o Co==ercial Operation): Forecas: Achieved ,

IN!!IAL CRITICALI"Y IN!!!AL ELECTRICITY COMMERCIAL OPERATION

-. m - - - - - - - , -m.,,-.r.-, . , , .- , , , - . - - , - . . . - - ,-4 -,--,-..-r. . .mr..- ,,-,,e -,,,,,,,-,,..,4-.,7- ,---.,-c-.,2w...,._,4,. , . 3---

AVE.UGE DAILY ;,3'!! 20*4ER :.I'/EL DOCKET No. 50-271 CiI! Ver=on: Yankee DATE 80-08-06 CC)C'LITED 3Y F.J. Burzer e.. :?HCh.g 802-257-7711 X137

..u-MONTH July DAY AVE.U GE DAILY FO'4ER LEVIL DAY AVERAGE DAILY FCb7.R LEVEL (Yde-Ne:) (X'Je-Ne:)

1. 487 17. 468

2. 482 18. 46; 19, 424

3. 480 4

3'9 20, 481

21. 477

3. 434 489 22. 478 6.

'91 23. 475 7.

489 24 477 3.

9. -o7 25. 474 456 26. ;n 10.

11. 484 27. :m 188 28. n 12.

29. 470

! 13, 21 30, 454 14 334 l

31. 469

15. 458 l

16. 473 i

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l 1' On this format, list :he average dail/ uni: power level in K4e-Net Icr each day in

he reporting =cn:h. Cc=pu:e :o the nearest whole megawa::.

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UNIT SiluTDOWNS AND POWER REDUCTIONS DOCKET No 50-271 UNIT NAME Vermont Yankee DA 0-08-06 REPORT MONTil July COMPI.ETED BY F.J. Burger l TE!.EPIIONE _ 802-257-7711 X_137 l

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NO m 'o N' N N Cause & Corrective I Date j ;j Sj g ;4 aj ' license i14,

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e s 80-20 80-07-18 S O II 4 N/A RA Cod! ROD Control Rod pattern adjustment.  !

j (power j- s' educt)  ;

! 80-21 '80-07-30 S 0 11 4 N/A EB TRANSF Hain t ransformer cooling system failure (power caused by blown fuses. Fuses replaced, i

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s 1 2 3 4 F: Forced Reason: Method: Exhthit G- Instructions f S: Sched:aled A-Equipment Failure (Explain) l- Manual for Preparation of Data

] H-Haintenance or Test 2- Manual Scrate Ent ry Sheets for I,Icensee

! C-Refueling 3- Automatic Scram Event Report (I.ER) File i

} D-Regulatory Restrict.lon 4- Other (Explain) (NUREG 0161)

E-Operate r Training & l.lcen'se Examination 5

F- Adnii ni s t ra t ive Exhibit I - Same Source ,

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DOCKET NO.

50-171 t.377 Vermon: Yankee DATE 80-03-06 COXpLITED 3Y F.J. Burger TEL7? HONE 802-257-7711 X137 Pl?CRT MONTH v. . $ ..

J SL*M'O.RY OF OPERATING EX?ERIENCES 1

l Highlights Vernon: Yankee opera:ed a: 90.3% of rated :her=al power for the nonth.

Gross elec:rical genera: ion was 348,966 MWH e or 86.8% of design elec:rical capaci:y.

Ooerating Sun =ar-The following is a chronological descriptien of plant operations including other partinen items of interest for the sench:

2 7/1/30- At the beginning of the reporting period the plant was operating at 99% of rated therr.a1 power.

7/4/80- At 0000 hrs. a power reduction was initiated for a control rod pa::ern adjustment.

7/10/80- At 1516 hrs. a power reduction was initiated in preparation for a drywell entry to inv.astigate leakage.

7/10/80- At 1551 hrs. a power increase was initiated.

7/12/30- At 0800 hrs. a plant shutdown was initiated to repair valve leakage and perform testing to verify the operation of the Control Rod Drive System. The turbine generatar was off the grid a: 1125 hrs.

7/13/30- At 1321 hrs. a start.up was initiated. The turbine generator was phased onto the grid a: 1736 hrs.

7/18/80- At 2212 hrs. a power redue:1on was initiated for a control rod pat:ern adjustment.

7/30/80- At 0320 hrs, a power reduction was initisted due to the loss of the main transformer cooling system. At 0440 hrs. a power increase was initia:ed.

7/31/80- Ac the end of the repor:ing period the plant was operating at 96% of rated ther=al power.

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