ML19343A152

Monthly Operating Rept for Aug 1980

ML19343A152
Person / Time
Site:	Vermont Yankee
Issue date:	09/08/1980
From:	Beers F, Burger F VERMONT YANKEE NUCLEAR POWER CORP.
To:
Shared Package
ML19343A146	List: ML19343A145 ML19343A152
References
NUDOCS 8009160301
Download: ML19343A152 (6)

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VIRMOC YA's NUcm ?Om STAn0N Mo rdLY STAT!sTICAL RIPORT S0-08 FOR TEI MONTH OF AUcusT, 1980 8009100 3D

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-4y CPI?aTING DATA RI?CRT 00CKIT NO. 50-271 DA~I 800908 COMPLI ID 3Y v. c. se .s 7

F veEONI 617-166 om ' X2215 -

'0?! RATING STA US Notes

. 'l. Uni: Name: Vermon: Yankee

2. Repor:ing ?eriod: Auris t . 1990

3. Licensed Ther=al. Power (W :): 1593

4. Nameplace Ratin;(Gross We): 540

5. D2 sign Ilec:rical Rating (Ne: We) :514(coen)304(closed?

t. 6. Maxi =um Dependable Capacity (Gross We): 535

7. Maxi =um Dependable Capaci:y(Net We): 504

8. If Changes Cccur in Capacity Ratings (Items Number ' Brough 7)Since Las: Reporr, Give Reasons:

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9. Power Level to Which Restricted,:f Any(Net We): Power Level limited due to end of cycle coa:

dow.

10. Raasons For Restrictions, If Any:

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~his Month Tr-te-Da:e Cumulative

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- 11. Hours In Reporting Period 744 5,855 ----

. 12. Nu=ber of Rours Reactor Was Critical 744 5,642.46 56.800.85

13. Reactor Reserve Shutdown Hours 0.0 0.0 0.0

14. Hours Generator On-Line 744 5,576.60 54,904.38

15. Uni: Reserve Shutdown Ecurs 0.0 0.0 0.0

16. Gross-Thermal Inergy Generated (MWE) 1.098,752.00 8.478.527.00 77;703.140.00_I

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17. Oross Ilec:rical Inergy Generated (MWE) 359.195.00 2.849,963.00 25.819.633.00

-13. Na Elec:rical Inergy Generated (W E) 335.949.00 2,705.993.00 24,474,358.00

19. Uni: Service Factor 100.00 95.25 ,

78.83

20. Uni: Availability Tac:or 100.00 95.25 78.83 21.-Unit Capaci:7 Tactor (Using MDC Net) 89.59 91.70 69.72

- 22. Uni: Capacity Fac:or(Using DIR Ne:) 87.85 89.92 68.36

[: 23. Uni: Forced Outage Rate 0.0 2.05 6.08 24 Shutdowns Scheduled.Over Nex: 6 Months (Type, Date, and Duration of Iach):

i Refueling outage scheduled ec begin Septe=ber 26, 1980 and vill last approW-ately eight weeks.

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j : 25. If Shu: Down A: Ind Cf Repor: Period, Isti=a:ed Ca:e of Startup:

, . 2w Uni:s'In Tes: Status (Prior :o-Co=ner:ial' Operation): ?crecas': Achieved ,

IN!~AL CRI~ICAL ~Y' ..

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I CCMMIRC*U. 0? IRA ~!CN

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es AVI?aGI DAILY i.iNIT POWER L_TL DOCKIT NO. 50-271

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UNIT venent Ymkee DA2 300908

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COMPLITED 3Y F. J. Burrer nLI?HoNI 302-257-7711 X137 MONTH August

! DAY AVERAGE DAILY ?OWER LEVEL DAY AVERAGE OAZY ?OWER LIVIL (MWe-Ne:) (MWe-Net)

1. 466 17. 458

2. 463 18, 457 4 3. 457 19. 455

' 4. 445 20. 455

5. 464 .21. 445

6. 456 22. 424

7. 459 23. 451 8, 457 24 446

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9. 455 25. 445

10. 461 26. 443

'll . 459 27. 443 t

12, 455 2S. 444 a.

13. 456 29. 442

14. 455 30. 440

15. 452 31. 435 16, 456

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INS 3CCTICNS:

On this-for:at, lis: :he average daily uni: power level in MWe-Ne: for ea:h day in

he repc::ing =c :r.. CO:pute :o :he neares: whole = egawa::.

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llHIT SilVTI) OWNS ANI) POWER REDUCTIONS DOCKET HO 50-271 ~

UNIT NAME Versiont Yankee .

DATE 800908 HEPORT 110NTil August -

COMPIETED llY F. J. Burger TEI.EPl!ONE _ 862T23727711 X137~

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NQ ce "o @ $ y Cause & CorrectI've No. 11a t e y y aj g y sj  !.lcense

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• I 64 N$ v

$ [2 $$ Reportl *'

i 3 8,3 Prevent Recurrence M

en is .c M ho u 6 es in un

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80-20 800804 S 0 11 4 N/A CB PUllPXX Power reduction for drywell entry to (Power check Recire Pump motor cooling system.

, Reduc-4

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Lion)

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w F: Forced Reason: Hetliod: Exhit:1t G- Instructionn S: Sclieduled A-Eigu l pmen t Falture (Explain) 1- Hanual for Preparation of Data ll-llaintenance or Test 2- Manual Scram Entry Sheetu for I.lcennee C-Hefueling 3- Automatic Scram Event Repo rt (l.ER) File D-Regulatory Hestriction 4- Other (Explain) (NllREG 0161)

E-Operator Training & l.lecuse Examination 5

F-Administrative Exhibit I - Same Source G-Operatlonal Error (Explain)

, ll-Other (Explain) 7/HO

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j DOCKFT NO. 50-271 .

UNIT Xermont..YankCC _ _ _ _ ,

DATE 800908 COttPLETED BY F. J. Burger

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TEI.EPilot1E 802-257-7711 XI.37

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SAFETY RELATED MAINTENANCE NATURE OF LER OR OUTAGE MALFUNCTION '

EQUIPttENT  !!AINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION Main Steam Line Area Corrective N/A Set Point. Drift More Conservative Replaced Switel Temperature Switch MR 80-679 Set Point TS-2-121C

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RCIC Condensate Corrective N/A Torque Switch out Control Switch Adjusted Torque Swite' Storage Tank Suction MR 80-810 of Adjustment Must Be lleld In Valve V 13-18 Open Position Until Valve is -1 Full Open RCIC Pump Discharge Corrective N/A Normal Usage Packing leak Adjusted Packing Pressure Cage Isolation MR 80-811 ,

Valve

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IIPCI Auxiliary 011 Pump Corrective N/A Set Point Drift Unnecessary Pump Recalibrated Switch t Control Switch MR 80-815 Operation "A" Service Water Strainer Corrective N/A Set Point Drift Auto Backwash Reca11brated Switch

' Pressure Switch

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MR 80-816 Inoperable i i

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DOCKIT NO.30-271 UN'T Vernent Yankee DA*"I S00908 OCMPII*~i3 3Y F. J. Surger T4LIFEONE 802-257-7711 X137

- REPORT MON'"E August SUMMA?Jf CF OPE?a!!NG EZ?IRIINCES Highligh:s Vernen: Tankee opera:ed a: 92i7: of ra:ed :her=al power for :he non:h.

Gress electrical generatice was 359,195 .WE or 89.4% of design elec:rieri e

Capacity.

Oeeratine Su==a-r The following is a chronological description cf plan opera:icns' including i other per:inen: 1: ems of interes: for the non:h:

8/1/80 A: the beginning of the reporting period, the plant was opera:ing at 95.6% of rated thermal power and in the process of coas: down for the refueling outage.

8/4/SO' A: 1400 hrs. a power redue:ien was initiated for a drywell

'an try.

8/4/80 A: 1630 hrs. a re: urn to nor=al power level was started.

8/31/80 A: the end of the reporting period, the plant was operating at 90.0% of rated ther=al power.