ML19339C550

Monthly Operating Rept for Oct 1980

ML19339C550
Person / Time
Site:	Vermont Yankee
Issue date:	11/11/1980
From:	Beers F, Burger F VERMONT YANKEE NUCLEAR POWER CORP.
To:
Shared Package
ML19339C546	List: ML19339C545 ML19339C550
References
NUDOCS 8011180584
Download: ML19339C550 (10)

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l VERMONT YANKEE NUCLEAR POWER STATION MONTHLY STATISTICAL REPORT 50-10 FOR THE MONTH OF OCTOBER, 1980 s

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l OPERATING DATA REPORT 00CKET NO. 50-271 DAIE 801111 CCMPLETED BY F.C. Beers TELEPHONE 617-366-8811, X2215 OPERATING STATUS Notes

1. 'init Name: Vermont Yankee

2. Reporting Period: October

3. Licensed Thermal Power (MWt): 1593

4. Naseplate Rating (Gross MWe): 540

5. Design Electrical Rating (Net MWe): 514 (open)504 (closeil)

6. Maximum Oependable Capacity (Gross MWe): 535

7. Maxi =ue Depenfable Capacity (Net MWe): 504

8. If C .anges Occur in Capacity Ratings (!te=s Nu=ber 3 Through 7)Since Last Report, Give Reascns:

9. Power Level to Which Restricted,If Any(Net >Me):

10. Peascns For Restrictions, If Any:

This Month Yr-to-Date Cuculative

11. Hours In Reporting ?eriod 745.00 7,320.00

12. Number Of Hours Reacter Was Critical 0.00 6,266.89 57,425.28

13. Raactor Reserve Shutdown Hours 0.00 0.00 0.00

14. Hours Generator On-Line 0.00 6,200.00 55,527.88

15. Unit Reserve Shutdown Hours 0.00 0.00 0.00

16. Cross Thermal Energy Generated (MWH) 0.00 9,347,971.00 78,572,584.00

17. Gross Electrical Energy Generated (MWH) 0.00 3,136,006.00 26,105,676.00

18. Net Electrical Energy Generated (MWH) 0.00 2,972,808.00 24,741,173.00

19. Unit Service Factor 0.00 84.70 78.08

20. Unit Availability Factor 0.00 84.70 78.08

21. Unit Capacity Factor (Using MDC Net) 0.00 80.58 69.03 ,

22. Unit Capacity Factor (Using DER Net) 0.00 79.01 67.68 l

23. Unit Forced Outage Rate 0.00 1.85 *6.02 l

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

Refueling in progress, QLast month's report was incorrect. Item 23 should have been 6.02. nor 6.40. l

25. If Shut Down At End Of Report Period, Estimated Late of Startup: Early December

26. Units In Test Status (Prior to Cc=mercial Operation): Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY CCFCERCIAL OPERATION

AVERAGE DAILY UNIT POWER LEVEL DOCY2T NO. 50-271 UNIT Vermont Yankee DATE 801111 COMPLETED BY F. J. Burger TELEPHONE 802-257-7711, X 137 MONTH October DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL

., (MWe-Net) (MWe-Net)

1. 0 17. 0

2. 0 18. O i 3. 0 19, 0 i

4. 0 20. 0

5. 0 21. 0

6. 0 22. O s

7. 0 23. 0 0 O

8. 24 t

9. 0 25. 0

10. 0 26. 0

11. 0 27. 0

12. 0 28. 0

13. 0 29. 0

14. 0 30. 0

15. 0 31. 0

16. O 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.

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DOCKET NO. 50-271 ,

UNIT vermnat..Yankaa DATE 801111 CottPLETED BY FJ J urger TELEP110NE 802-257-7711 X 13Z___

r e

SAFETY RELATED itAINTENANCE_

Page 1 of 6 i

. NATURE OF ,  !!ALFUNCTION

EQUIPMENT MAINTENANCE tHIM11ER (' AtlS E RESIILT CORRECTIVE ACTION li"s Standby Liquid Control Corrective N/A Construction Arc Pitting of the Repaired by Welding Line, SLC-9 MR 80-186 Strike Pipe but not Below Minimum t Wall Thickness MS2V 80 A Preventive ,N/A Worn Guide Rods and Potential Sticky Replaced Guide Rods MR 80-249 Springs on Valve Operation and Springs Actuator

- IIPCI Pump, P 44-1A Corrective N/A Vibration Oil Line Leakage Repaired by Welding MR 80-403 but Pump Operabic Scram Solenoids, 18-19 and Corrective N/A Normal Operation Noisy Solenoids Replaced Solenoids 10-07 MR 80-484 and 80-485 Respectively

, HPCI Pump, P 44-1A Corrective N/A Normal Operation Seal Leakage Replaced Outboard Pump MR 80-703 Seal Control Rod 14-11 Corrective N/A Normal Wear Sticky Relay Replaced Relay Relay 3A-K12 MR 80-731 RWCU Valve V12-19A Corrective N/A Worn Parts Leakage Replaced Seal Ring &

HR 80-733 Repacked Valve l

DOCKET NO. 50-271 .

l! NIT Vermont Yankee DATE 801111 COMPLETED BY F.J. Burger TELEril0NE 802-257-7711 X 137 P

SAFETY RELAT_ED !!A f NTENANCE _

Page 2 of 6 LER OR OUTAGE

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EQllIPMENT MAINTENANCE NIIMBER EAllSE RESilLT CORRECTIVE ACTION -

Control Rod Drive llCU 26-35 Corrective N/A Worn Parts Leakage Replaced Accumulator MR 80-760 "A" RHR Pump Discharge Corrective N/A Worn Parts Leakage Repaired by Welding Chrck Valve V10-48A MR 80-914 "A" RWCU Pump Corrective N/A Worn Parts Seal Leakage

• Replaced Seal MR 80-922 IIPCI Isolation Valve Corrective N/A Vibration Intermittent Adjusted Position v23-15 Position Indication MR 80-935 Indication Indication Switch i "b" SBGT Train Preventive N/A N/A N/A Changed out Charcoal MR 80-937 Cartridge In Test Cel LPRM 08-33A Corrective N/A Loose Power Supply Pailed LPRM Rescated Power Supply MR 80-945 Module Module IRM's C & D Corrective N/A Loose Connectica Erratic Indica- Replaced Connector MR 80-961 -

tion llPCI Valve V23-19 Corrective N/A Vibration Loss of Indica- Adjusted Position Position Indication MR 80-969 tion Indication Switch 4

"A" Service Water Preventive N/A N/A N/A Inspected & Overhaule.

Pump, P7-1A MR 80-974 Pump

DOCKET NO. 50-271 .

UNIT Vermont Yankee DATE 801111 COMPLETED BY F . .I . Burger TELEPIIONE 802-257-7711 X 137 r

SAFETY RELATElj llAINTENAlHL Page 3 of 6 NATURE OF MALFUNCTION R OR OU' RACE EQUIPMENT MAINTENANCE NUMBER C USE RESULT CORRECTIVE ACTION CAD Valve VG-22B Corrective N/A Normal Wear Leakage Lapped Plug & Seat MR 80-981 ..

Installed New Caskets Drywell Floor Drain Valve Corrective N/A Dirt & Corrosion Leakage Disassembled and V20-83 MR 80-984 Cleaned Valve Containment Sampling Valve Corrective N/A Worn Parts Leakage Replaced Disc Assembl FSO-76-A MR 80-987 Shock Suppressor MS-24 Corrective LER Worn Parts Fluid Leakage Replaced Seals and MR 80-989 80-31/3L Orfico Block RCIC Valve V 13-15 Corrective N/A Warn Parts Leakage Replaced Bonnet Seal MR 80-993 & Repacked Valve Shock Suppressor CU-2 Corrective N/A Vibration Loose Pipe Clamp, Tightened Nut MR 80-998 Snubber Operable Core Spray Valve V14-5B Corrective N/A Vibration / Wear Broken Valve Replaced Bolt l Valve Operator MR 80-1008 Operator Mount-ing Bolt HPCI Valve V23-18 Corrective N/A Worn Packing Leakage Repacked Valve MR 80-1025 RCIC Valve V13-22 Corrective N/A Worn Packing Leakage Repacked Valve MR 80-1026

DOCKET No. 50-171 6

UNIT Vermont Yankee DATE 80111L C0!!PLETEI) BY F.J. Burger TELEPIIONE 802-257-7711 X 137 r

SAFETY REI.ATED MAINTENANCE

'Page 4 of 6 NATURE OF MALFUNCTION ER OR OUTAGE EQUIPMENT MAINTENANCE NUffilER CAllSE RESULT CORRECTIVE ACTION Refueling Bridge Auxiliary Corrective N/A Worn Parts Broken Swivel Replaced Connector lloist Cable MR 80-1027 Connector RilR Valve .V10-18 Preventive N/A N/A N/A Repacked Valve MR 80-1033

'RilR Valve V10-29 Preventive N/A N/A N/A Replaced Seal Ring i MR 80-1034 and Repacked Valve RilR Valve V10-88 Preventive N/A N/A N/A Repacked Valve

, MR 80-1035 Service and Instrument Preventive N/A N/A N/A Air Valves V72-898 & C Disassemble and Clean-MR 80-1038 . ed Valvas I

RllR Valve V10-32 Preventive N/A N/A N/A Repacked Valve 1

MR 80-1043 RHR Valve V10-31A Preventive N/A N/A N/A Repacked Valve MR 80-1044 l

' Reactor Protection Corrective N/A Worn Parts Relay Inoperable Replaced Relay Relay KilB MR 80-1046

DOCKET NO. 50 _271 UNIT Vermont Yankee _ . .

DATE 801111 COMPI.ETED BY F.J. Burger TEl,EPil0NE

'802-DJ-2))L)L132 l

l SAFETY REl.ATED MAlHTEN_AN_CE ,

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Page 5 of 6 NATURE OF ER OR OU'I' AGE MAI.FIINCTION EQUIPMENT MAINTENANCE NilHilER dAllSE RESilLT CORRECTIVE ACTION ,

HPCI Valve V23-15 Preventive N/A N/A N/A Repacl:ed Valve MR 80-1052 -

Core Spray Valves Preventive N/A N/A N/A Repacked Valves V12-14A & B MR 80-1067 l

"A" Diesel Generator' Corrective N/A Wern Parts Failed Relay Replaced Relay Power Failure Alarm MR 80-1069 Core Spray Valve Corrective N/A Worn Parts Contacts Arcing Replaced Parts as V14-12B Breaker MR 80-1070 Breaker Operable Necessary "C" RilR Pump Seals Preventive N/A Seal Material N/A Replaced Pump Seals MR 80-1072 Not Compatibic l With Radiation Environment "A" Diesel Generator Corrective N/A Vibration Leaking Fuel Tightened Fitting MR 80-1078 011 Fitting Containment Sampling Corrective N/A Dirt / Corrosion Valve Would Valve FSO 75-D Disassembled & Cleaned MR 80-1080 Not Shut Valve

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Reactor Jet Pump #8 Corrective LER See LER Cracked Beam Replaced Beam Hold-down Beam MR 80-1082 80-33/3L

DOCKET NO. 50-271 ,

UNIT Vermog tlanksg_______,

DATE 80111_1 COMPl.ETED BY F.J. Burycr

! TEl.EPil0NE 802-257-7711 X 137 P

SAFETY REl.ATEtt MAINTENANCE Page 6 of 6

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1.ER OR OUTAGE IgUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION "A" Diesel Cenerator Corrective N/A Dirt / Set Point Diesel Could Cleaned and Timed Rela-Shutdown Relay MR 80-1084 Drift Not be Shutdown l.

Control Rod Drive Corrective N/A Worn Seals Leakage Replaced Valves liCU Cartridge Valves MR 80-1089 (10-15, 14-19, 18-19, 22-23, 38-31) l Control Rod Drive Corrective N/A Worn Seal Leakage Replaced Accumulator i

Accumulator 18-43 MR 80-1092 l

"B" Diesel Air Valve Corrective N/A Loose Packing Leakage Adjusted Packing 19 C MR 80-1101 l

Scram Discharge Volume Corrective N/A Failed Components Would Not Reset Replaced Mercury

Lsvel Suitch 3-231D MR 80-1103 Switch L

l Fuel Pool Cooling Valve Corrective N/A Worn Parts Leakage Replaced Diaphragm l V 19-77 MR 80-1118 Fuel Pool Cooling Valve Corrective N/A Worn Parts Leakage Tightened Body to V 19-20A MR 80-1121 Bonnet Jolnt i  !

l IIPCI Valve V23-19 Corrective LER Overload Trip Valve Inoperable Reset Overload Trip MR 80-1166 80-26/3L Tripped, Carise Unknown l

DOCKET No. 50-271 UNIT Vermont Yankee i

DATE 801111 4

I COMPLETED BY F. J. Burger I TELEPHONE 802-257-7711, X137 i

l REPORT MONTH October ,

l SIDDfARY OF OPERATING EXPERIENCES

f During the reporting period, the plant was shutdown for refueling and

! maintenance.

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