ML20063M698

Monthly Operating Rept for Aug 1982

ML20063M698
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	09/10/1982
From:	Burger F VERMONT YANKEE NUCLEAR POWER CORP.
To:
Shared Package
ML20063M697	List: ML20063M696 ML20063M698
References
NUDOCS 8209160007
Download: ML20063M698 (7)

Text

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VERMONT YANKEE NUCLEAR POWER STATION MONTHLY STATISTICAL REPORI 82-08 FOR THE MONTH OF AUGUST,1982 l

8209160007 820910 PDR ADOCK 05000271 R PDR

OPERATING DATA REPORT 4

DOCKET NO. 50-271 DATE 820910 COMPLETED BY F.J. Burger .

TELEPHONE (802) 257-7711 Ext 13 OPERATING STATUS Notes

1. Unit Name: Vermont Yankee

2. Reporting Period: August

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. Power Level to Which Restricted,If Any(Net MWe): N/A i10. Reasons For Restrictions, If Any: N/A i

This Month Yr-to-Date Cumulative

11. Hours In Reporting Period 744.00 5831.00 ___

' 12. Number Of Hours Reactor Was Critical 639.66 5591.99 70670.14

13. Reactor Reserve Shutdown Hours 0.00 0.00 0.00 j 14. Hours Generator On-Line 625.40 5549.33 68560.52' 0.00 0.00 0.00

'15. Unit Reserve Shutdown Hours

16. Gross Thermal Energy Generated (MWH) 976,516.00 8678259.00 98594019.50

17. Gross Electrical Energy Generated (MWH) 316,654.00 2894648.00 32766619.00

. 18. Ne Electrical Energy Generated (MWH) 297,404.00 2752410.00 31068696.00

19. Uiit Service Factor 84.06 95.17 78.65

20. Dait Availability Factor 84.06 95.17 78.65 I 21. Unit Capacity Factor (Using MDC Net) 79.31 93.66 70.72 j 22. Unit Capacity Factor (Using DER Net) 77.77 91.83 69.34

, 23. Unit Forced Outage Rate 3.43 3.23 6.52

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

N/A

]

I

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

9/1/82

)26.UnitsInTestStatus(PriortoCommercialOperation): Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION

, - - - . . _ . - _ .-_ -___ _ - . . - . _ - - _ __ . .. -- - _ ~ . _ . - - . _ . . - _ _ - - - - -

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-271 UNIT Vermont Yankee DATE 820910 COMPLETED BY F.J. Burger TELEPHONE (802) 257-7711 ext. 137 MONTH August DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 474 17. 434 1.

484 18, 481 2.

3. 484 19, 488

4. 484 20. 487

5. 482 21. 492

6. 486 22. 490

7. 484 23. 489

8. 475 24. 486 482 25. 488 9.

482 26. 488 10.

487 27. 445 11.

488 0

12. 28.

487 0

13. 29.

14. 488 30.

0

15. 200 31.

16. 155 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.

UNIT SilUTDOWNS AND POWER REDUCTIONS DOCKET NO 50-271 UNIT NAME Vermont Yankee REPORT MON 1tl August DATE 820910 COMPLETED BY F. J. Burger TELEP110NE (802) 257-7711, Ext. 137 i

Sui N o o y Cause & Corrective No. Date 7 gg g gg License ga go g ,

Rep rt# #*""" *""## "*

[ o e em i m o i  % U

' S82-111 820815 F 22.22 A 3 N/A IIB INSTRU Reactor scrammed on high flux in response l to a pressure spike which originated in the main turbine control system. The manual pressure regulator was found to be clogged.

The system was disassembled, cleaned, and 1

returned to service.82-12l 820827 S 96.38 B 2 N/A CB PUMPXX Plant shutdown for the replacement of the reactor recirculation pump seals and other i

maintenance.

L i

/

F: Forced Reason: Method: Exhibit G- Instructions S: Scheduled A-Equipment Failure (Explain) l- Manual for Preparation of Data 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 & License Examination F-Administrative 3 Exhibit I - Same Source G-Operational Error-(Explain)

Il-Other (Explain)

DOCKET N@. 30-2/1 UNIT Vermont Yankee DATE 820910 COMPLETED BY F. J. Burger TELEPHONE (802) 257-7711 ext. 137 SAFETY RELATED MAINTENANCE Pace 1 of 2 NATURE OF MALFUNCTION ER OR OUTAGE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION HPCI Skid Lube Oil Cooler Corrective N/A System Operation Oil Leakage at Replaced Parts as Outlet Flange MR 81-1379 Threaded Fitting Necessary Reactor Recirculation Pump Preventive Outage Second Stage Seal N/A Replaced Seal P18-1A MR 82-0610 82-12 Pressure Dropping Reactor Recirculation Pump Preventive Outage Second Stage Seal ,

N/A Replaced Seal P18-1B MR 82-0611 82-12 Pressure Dropping Service Water Pumps Corrective N/A Worn Packing Leakage Repacked Pumps P7-1A, 1C & 1D MR 82-0832 IRM "D" Corrective N/A Failed Parts Erratic Changed Penetration Fa 82-0842 Indication Connection & Remade Cable Connection Service Water Pump Corrective N/A Worn Packing Leakage Adjusted Packing P7-lC MR 82-0867 IRM "E" Corrective N/A Failed Parts- Erratic Remade Cable Connectior1 MR 82-0895 Indication RCIC Relays 13A-K7 Preventive N/A Vendor Initiated N/A Repalced Relays and 13A-K31 MR 82-0929

DOCKET NO. 50-271 UNIT Vert.-nt Yankee DATE 820910 COMPLETED BY F. J. Burger TELEPHONE (802) 257-7711 Ext. 137 SAFETY RELATED MAINTENANCE Page 2 of 2 NATURE OF MALFUNCTION LER OR OUTAGE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION RHR Valves V10-166C Corrective N/A Normal Wear Leakage Replaced Valves and V10-167C MR 82-0934 UPS "A" Corrective N/A Failed Parts Frequency Drift Replaced Parts MR 82-0958 "A" Diesel Generator C7rrective N/A Failed Parts Pressure Replaced Parts Jacket Coolent MR 82-0963 Fluctuations "C" bbin Steam Line Corrective N/A Failed Parts Low Readings Replaced Parts Radiation Monitor MR 82-0977 (Set Pt. Low)

RWCU Valve V12-18 Corrective LER 82-18/3L Failed Parts Valve Replaced Parts MR 82-0893 Inoperable HPCI Governor Valve Corrective LER 82-19/3L Failed Parts Valve Would Replaced Parts MR 82-1009 Not Open SBGT Valve SGT-3A Preventive N/A Worn Parts , Solenoid Replaced Solenoid Air Operator Solenoid MR 82-1048 Noisey Coil

l DOCKET NO. 50-271 1

[ UNIT Vermont Yankee DATE 820910 COMPLETED BY F.J. Burger I TELEPHONE (802) 257-7711 Ext. 137

, REPORT MONTH August

SUMMARY

OF OPERATING EXPERIENCES Highlights

- Vermont Yankee operated at 82.4% of rated thermal power for the month.

Gross electrical generation was 316654 MWH or 78.8% of design electrical capacity.

Operating Summary The following is a chronological description of plant operations including other pertinent items of interest for the month:

At the beginning of the reporting period, the plant was operating at 99.8% of rated thermal power.

820815 At 1030 hrs., while returning to full power after completing control rod and main turbine surveillance, the reactor scrammed.

(See Unit Shutdowns and Power Reductions).

820816 At 0301 hrs., the reactor was critical.

820816 At 0843 hrs., the generator was phased with the grid.

820827 At 2100 hrs., a manual shutdown was initiated for plant maintenance. (See Unit Shutdowns & Power Reductions).

820827 At 2337 hrs., the generator was removed from the grid.

820827 At 2348 hrs., the reactor was scrammed.

820831 At 1557 hrs., the reactor was critical.

At the had of the reporting period the plant was in the process of starting up.

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