ML19350D345

Monthly Operating Rept for Mar 1981

ML19350D345
Person / Time
Site:	Vermont Yankee
Issue date:	04/09/1981
From:	Bernard D VERMONT YANKEE NUCLEAR POWER CORP.
To:
Shared Package
ML19350D341	List: ML19350D340 ML19350D345
References
NUDOCS 8104150290
Download: ML19350D345 (6)

Text

'

rh VERMONT YANKEE NL' CLEAR POWER STATION MONTHLY STATISTICAL REPORT 81-03 FOR THE MONTH OF MARCH, 1981 i

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810.41gg979,

OPERATING DATA REPORT DOC'GT NO. 50-271 DATE 810409 COMPLETED 3Y D. Bernard TELEPHONE 617-872-8100 Ext. 2390 OPERATING STATUS

1. Uni: Name: Ver=ont Yankee

2. Reporting Period: March 1981

3. Licensed Thermal Power (Wt): 1593

6. Nameplate Rating (Gross We): 540

5. Design Electrical Rating (Net We):514(onen) 504 (close i)

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

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

3. If Changes occur in capacity Ratings (Items Number 3 Through 7)Since Last Report, Give Reasons:

9. Power Level to 'ihich Restricted.If Any(Net We):

10. Reasons For Restrictions, If Any:

This Month Yr-to-Date Cumulative

11. Hours In Reporting Period 744.00 2,160.00

'2. Number Of Hours Reactor Was Critical ?ti.no 2.160.00 59.695.78

13. Reactor Reserve Shutdown Hours 0.00 0.00 0.0n.

14. Hours Generator On-Line 744.00 2.110.60 57.712.18

. 15. Unit Reserve Shutdown Hours 0.00 0.00 0.00

16. Gross Ther=al Energy Generated (WR) 1,115.000.00 3.169.359.00 81,773,376.00 l

l 17. Gross Elec:rical Energy Generated (WR) 378.875.00 1.073,713.00 27,186.560.00;

13. Ne: Electrical Energy Generated (MTd) 1r,1_747.00 1.030.500.00 25.778.079.00 L9. Unit Service Factor 100.00 97.71 77.22.

20. Uni: Availability Factor 100.00 97.71 77.22

21. Uni: Capacity Factor (Using MDC Net) 97.01 94.66 68.43

22. Uni: Capacity Factor (Using DER Net) os.12 92.82 67.1C

23. Unic Forced Outage Rate 0.00 2.29 7.14-

24. Shutdowns Scheduled Over Next 6 Montus(Type, Date, and Duration of Each):

25. If Shu: Ocun A End Of Report Period, Estimated Date of Startup:

26. Uni:s In Tes: Status (Prior :o Co==ercial Operatien): Forecast Achieved INITIAL CRI!!CALIT?

INIT!AL ELECTRICITf i

CCMMERCIAL CPERATION l

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l IltilT SilllTDOWNS AND POWER REDilCTIONS DOCKET 110 50-271 IINIT NAHK Vermont Yankee DATE 810409 REPHIrl. HONTil Ma rc h ~ ~ ~ ~ ~

COMP ED itY F.J. Burger

TEl.EPHONE 802-257-7711 Ext. 137 - ~

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l ri am oa se a s< u e ca oao n Cause & CurrectIve lb s .

• Date 'O v4 64 a vi o I.icense go m.n a U ** n o 'u e s o ee ae Action to e O. 80 o e o as as Event o .o o .o

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81-06 810314 S O B 4 N/A Rit CONROD Power reduction for control rod pattern (Power RB PllHPXX exchange and special testing, reduc- SP VESSEL.

d tlon)

Hi-0/ H10317 S O is 4 N/A RB PuriPXX Power reduction for special testing I (Power reduc-tion) 4 l,

81-08

• 810322 S 0 11 4 f*M Cl1 CENERA Power reduction for mafutenance of the (Power EA ZZZZZZ reactor rectre. pump MG sets. Maintenance

. reduc- of the of f-site higli voltage distribution tion) system was also completed.

1 l 1 2 3 4 j F: Fo ced Reason: Method: Exhihit G- Instructions S: Sc heilu t ed A-Equipment Failure (Explain) l- Manual for Preparation of Data j ll-Haint enance o r Test 2- Manual Scram Entry Sheets'for I.icensee l C-Refuellug 3- Aut omat ic Scram Event Report (I.ER) File 1

D-Regulatory Restriction 4- Other (Explain) (NilREC 0161)

E-Operator Training & l.icense Examination l 5 F-Administrative Exhibit 1 - Same Source U-Operational Error (Explain) i Il-Other (Explain) o I leDat

150CKtJ f40.  ?>O-/ / I UNIT Vermont Yankee _

DATE 810409 CollPl.ETED BY F . .I . liurger

'l El.EPIlONE 802-25/-7711 Ext. I37 SAFETY REI.ATED MAINTENANCE NATURE OF MAI. FUNCTION 1.ER OR OU'l' AGE EI!Ili PMENT MAINTENANCE NLIMi!ER CAUSE RESill.T CORRECT 1VE ACT10ll Reactor Water Cleanup Pump, Corrective N/A Normal Wear Seal f.eakage Replaced Pump P-49-IA MR 81-101 Pressure Switch PS 2-3-52h Corrective N/A Normal Wear Seat f.eakage Replaceu Valve Isolation Valve MR 81-226 RilR Valve V10-16A Corre: Live N/A Frilled Auxillary Valve Would Not Replaced cont.act, MR 01-279 Conteset, Open ilPCI Valve V23-14 Corrective N/A Worn Packing I.eakage Adjusted Packing MR 81-282 "B" SliGT Train Preventive N/A N/A N/A Change Charcoal In Test MR 81-286 Cell "li" SliGT Train Charcoal Corrective N/A Tests Indicitate Charcoal Contam- Replaced Charcoal Filter Filter MR 81-303 Charcoal Near End inated But Serv-Of 1.ife icable PCIS Relay 16 AK-2ti Corrective N/A Worn Parts Failed Relay Replaced Parts As MR 81-319 Necessary w

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3 DOCKET NO. 50-271 g77 Vermont Yankee DATE C 0409 COMPLETED 3Y F.J. Burger TELEPHONE 802-257-7711 Ext. 137 -

REPORT MONTH March SLT ARY OF OPERATING EXPERIENCES High11thes 7erson: Yankee operated at 94.07% of rated ther=al power for the nonth.

Gross electrical generation was 378,375 MWH e or94.3% of design electrical capact:7 Ocerating Su=mari The following is a chronological description of plant operations including other pertinent items of interest for the sonth:

3/1/81 At the beginning of the reporting period the plant was operating at 39% of rated thermal power. Turbine generator surveillance was in progress.

3/14/81 At 0015 hrs. a power reduction was initiated for stability testing, torus testing, and a control rod pattern exchange.

3/15/81 At 0700 hrs. a power ascension was started to return to full power, torus testing was still in progress.

3/17/81 At 2334 hrs, a power reduction was initiated for additional stability t e s t ing.

3/19/S1 At 0305 hrs. the testing program was completed. At 1230 hrs. a return to full power was initiated.

3/22/81 At 0645 hrs. a power reduction was initiated for maintenance on the reactor recire. pump MG sets. Maintenance was also performed on the off-site high voltage distribution system. At 1157 hrs. a return to full power was initiated.

3/31/81 At the end of the reporting period the pInnt was operating at 99.8%

of rated thermal power.