ML19341A045: Difference between revisions
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\_. / 1 | \_. / 1 VERMONT YANKEE NUCLEAR POWER STATION MONTHLY STATISTICAL" REPORT 80-12 FOR THE MONTH OF DECDiBER, 1980 l | ||
VERMONT YANKEE NUCLEAR POWER STATION MONTHLY STATISTICAL" REPORT 80-12 FOR THE MONTH OF DECDiBER, 1980 l | |||
l 8101210$ | l 8101210$ | ||
OPERATING DATA REPORT DOCKET NO. 50-271 DATE 810113 COMPLETED BY D. Bernard TELEPHONE 617-872-8100 ext. 2390-OPERATING STAIUS_ | OPERATING DATA REPORT DOCKET NO. 50-271 DATE 810113 COMPLETED BY D. Bernard TELEPHONE 617-872-8100 ext. 2390-OPERATING STAIUS_ | ||
: l. Unit Name: Vermont Yankee | : l. Unit Name: Vermont Yankee | ||
: 2. Reporting Period: December | : 2. Reporting Period: December | ||
| Line 48: | Line 41: | ||
: 15. Unit Reserve Shutdown Hours 0.00 0.00 0.00 | : 15. Unit Reserve Shutdown Hours 0.00 0.00 0.00 | ||
: 16. Gross Thermal Energy Generated (WR) 30,933.00 9,378,904.00 78,603,517.00 | : 16. Gross Thermal Energy Generated (WR) 30,933.00 9,378,904.00 78,603,517.00 | ||
: 17. Gross' Electrical Energy Generated (W R) 7.171.00 3.143.177.00 26.112.847.00 | : 17. Gross' Electrical Energy Generated (W R) 7.171.00 3.143.177.00 26.112.847.00 | ||
: 18. Nst Electrical Energy Generated (WH) 6.406.00 2.979.214.00 24 747 979 nn | : 18. Nst Electrical Energy Generated (WH) 6.406.00 2.979.214.00 24 747 979 nn | ||
: 19. Unit Service Factor o of 71 e 75_s1 | : 19. Unit Service Factor o of 71 e 75_s1 | ||
: 20. Unit Availability Factor 9.91 71.42 76.61 | : 20. Unit Availability Factor 9.91 71.42 76.61 | ||
: 21. Unit Capacity Factor (Using MDC Net) 1.71 67.29 67.65 | : 21. Unit Capacity Factor (Using MDC Net) 1.71 67.29 67.65 | ||
: 22. Unit Capacity Factor (Using DER Net) 1.68 65.09 AA u | : 22. Unit Capacity Factor (Using DER Net) 1.68 65.09 AA u | ||
: 23. Unit Forced Outage Rate 90.06 13.11 7.31 | : 23. Unit Forced Outage Rate 90.06 13.11 7.31 | ||
: 24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each): | : 24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each): | ||
l 25. If Shut Down At End Of Report Period, Estimated Date of Startup: | l 25. If Shut Down At End Of Report Period, Estimated Date of Startup: | ||
L 26. Units In Test Status (Prior to Commercial Operation): Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION | L 26. Units In Test Status (Prior to Commercial Operation): Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION | ||
AVERAGE DAILY UNIT P0kT.R LEVEL l i | AVERAGE DAILY UNIT P0kT.R LEVEL l i | ||
4 | 4 DOCKET NO. 50-271 UNIT Vermont Yankee l | ||
DOCKET NO. 50-271 UNIT Vermont Yankee l | |||
DATE 810113 - | DATE 810113 - | ||
1 l | 1 l | ||
| Line 81: | Line 65: | ||
: 5. 0 ,1, 0 | : 5. 0 ,1, 0 | ||
: 6. o 22. n | : 6. o 22. n | ||
: 7. o 23. n | : 7. o 23. n | ||
: 3. o 24. n | : 3. o 24. n | ||
| Line 95: | Line 78: | ||
Cu :his fornac, list :he average daily uni: pcwer level in MWe-Ne: for each day in | Cu :his fornac, list :he average daily uni: pcwer level in MWe-Ne: for each day in | ||
:he reporting non:h. Ccmpute to che neares: whole negawatt. | :he reporting non:h. Ccmpute to che neares: whole negawatt. | ||
l | l | ||
UNIT SilUTDOWNS AND POWER REDUCTIONS DOCKET NO 50-271 UNIT NAME Vermont Yankee REPORT MONTil December COMPl.ETED BY F.J. Burger TELEPilONE 802-257-7711 Ext. 137 Page 1 of 2 E7 ca 'o o y cause & Corrective No. Date y gg g gg License g .n I "" | |||
UNIT SilUTDOWNS AND POWER REDUCTIONS DOCKET NO 50-271 UNIT NAME Vermont Yankee REPORT MONTil December COMPl.ETED BY F.J. Burger TELEPilONE 802-257-7711 Ext. 137 | |||
Page 1 of 2 | |||
E7 ca 'o o y cause & Corrective No. Date y gg g gg License g .n I "" | |||
a' O:0 $ .0 $ $ $3 E~8 Prevent Recurrence gv y g g n: Report # go go E g o S | a' O:0 $ .0 $ $ $3 E~8 Prevent Recurrence gv y g g n: Report # go go E g o S | ||
80-22 801124 F 559.9 A* 4* 80-37/1T CG PIPEXX The pipe cracking is believed to have been (cont) caused by ICSCC. The Sweep-0-Let is under-going a failure analysis to determine the cause of the cracking. | 80-22 801124 F 559.9 A* 4* 80-37/1T CG PIPEXX The pipe cracking is believed to have been (cont) caused by ICSCC. The Sweep-0-Let is under-going a failure analysis to determine the cause of the cracking. | ||
| Line 114: | Line 87: | ||
I r: Forced Reason: Method: Exhibit G- Instructions S: Scheduled A-Equipment Failure (Explain) 'l- Manual for Preparation of l>ata ll-Ma tutenance 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) | I r: Forced Reason: Method: Exhibit G- Instructions S: Scheduled A-Equipment Failure (Explain) 'l- Manual for Preparation of l>ata ll-Ma tutenance 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 ,. | E-Operator Training & License Examination ,. | ||
F-Administrative Exhibit I - Same Source G-Operational Error (Explain) | F-Administrative Exhibit I - Same Source G-Operational Error (Explain) | ||
II-Other (Explain) | II-Other (Explain) | ||
, ann | , ann | ||
IINIT SilVTDOWNS AND POWER REDUCTIONS DOCKET NO 50-271 UNIT NAME Vermont Yankee REPORT MONTil December DATE 810113 COMPl.ETED BY F.J. Burger TEl.EPil0NE 802-257-7711 Ext. 137 Page 2 of 2 E9 m Y o y Cause & Corrective No. Date 'g ;jg g 7j g License gg .n H = | IINIT SilVTDOWNS AND POWER REDUCTIONS DOCKET NO 50-271 UNIT NAME Vermont Yankee REPORT MONTil December DATE 810113 COMPl.ETED BY F.J. Burger TEl.EPil0NE 802-257-7711 Ext. 137 Page 2 of 2 E9 m Y o y Cause & Corrective No. Date 'g ;jg g 7j g License gg .n H = | ||
rt# | rt# | ||
a M em m 8 M g U S | a M em m 8 M g U S | ||
80-24 801225 F 106.9 A 4 N/A CF VALVEX Maintained reactor shutdown from previous scram to repair RllR System valve leakage. | 80-24 801225 F 106.9 A 4 N/A CF VALVEX Maintained reactor shutdown from previous scram to repair RllR System valve leakage. | ||
80-25 801229 S 2.5 B N/A N/A N/A N/A Turbine Ge.wrator removed from the grid for oversp.ted testing. | 80-25 801229 S 2.5 B N/A N/A N/A N/A Turbine Ge.wrator removed from the grid for oversp.ted testing. | ||
I F: Forced Reason: Mettrod: Exhibit G- Instructions S: Scheduled A-Equipment Failure (Explain) 'l- Manual for Preggration of Data B-Haintenance 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) | I F: Forced Reason: Mettrod: Exhibit G- Instructions S: Scheduled A-Equipment Failure (Explain) 'l- Manual for Preggration of Data B-Haintenance 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 5 | E-Operator Training & License Examination 5 | ||
F-Administrative F.xhibit I - Same Source G-Operational Error (Explain) | F-Administrative F.xhibit I - Same Source G-Operational Error (Explain) | ||
II-Other (Explain) | II-Other (Explain) | ||
DOCKET NO. 50-271 UNIT Vermont Yankee DATE 810113 COMPLETED BY F.J. Bureer TELEPHONE 802-257-7711 Ext _ 117 SAFETY RELATED MAINTENANCE Page 1 of 5 NATURE OF MALFUNCTION ER OR OUTACE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION "D" RilR Pump,P-10-ID Corrective N/A Normal Operation Seal Leakage Replaced Seal MR 80-0289 Instrument Isolation Corrective N/A Normal Operation Leakage Repacked Valve Valve V2-12B MR 80-0508 A-D kliR Pumps Corrective N/A NoL'al Operation Leakage Replaced Tubing and Connec-P-10-1A +1D Seal Water MR 80-0804 tions Supply Connections at pump suctions Containment Air Monitor Corrective N/A Shifted Valve Leakage Installed Re-designed Isolation Valve 76 A MR 80-0995 Internals Prevent- Valve Internals Supplied ed Closure by the Factory CRD liydraulic Control Unit Corrective N/A Normal Operation Air Leakage Replaced Solenoids and 14-31 Air Solenoids MR 80-1045 Rebuilt Valves | DOCKET NO. 50-271 UNIT Vermont Yankee DATE 810113 COMPLETED BY F.J. Bureer TELEPHONE 802-257-7711 Ext _ 117 SAFETY RELATED MAINTENANCE Page 1 of 5 NATURE OF MALFUNCTION ER OR OUTACE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION "D" RilR Pump,P-10-ID Corrective N/A Normal Operation Seal Leakage Replaced Seal MR 80-0289 Instrument Isolation Corrective N/A Normal Operation Leakage Repacked Valve Valve V2-12B MR 80-0508 A-D kliR Pumps Corrective N/A NoL'al Operation Leakage Replaced Tubing and Connec-P-10-1A +1D Seal Water MR 80-0804 tions Supply Connections at pump suctions Containment Air Monitor Corrective N/A Shifted Valve Leakage Installed Re-designed Isolation Valve 76 A MR 80-0995 Internals Prevent- Valve Internals Supplied ed Closure by the Factory CRD liydraulic Control Unit Corrective N/A Normal Operation Air Leakage Replaced Solenoids and 14-31 Air Solenoids MR 80-1045 Rebuilt Valves | ||
#3 TIP Machine Containment Corrective N/A Normal Operation Leakage Replaced Seals Penetration MR 80-1051 CRD liydraulic Control Corrective N/A Set Point Drift Out of Calibra- Recalibrated Switch Unit 30-07 Alarm Pressure MR 80-1127 tion Switch RWCU line CUW-18 Corrective LER 80-37/IP 3ee LER Leakage Replaced Affected Compon-MR 80-1133 ents | #3 TIP Machine Containment Corrective N/A Normal Operation Leakage Replaced Seals Penetration MR 80-1051 CRD liydraulic Control Corrective N/A Set Point Drift Out of Calibra- Recalibrated Switch Unit 30-07 Alarm Pressure MR 80-1127 tion Switch RWCU line CUW-18 Corrective LER 80-37/IP 3ee LER Leakage Replaced Affected Compon-MR 80-1133 ents | ||
DOCKET NO. 50-271 UNIT Vermont Yankee DATE 810113 COMPLETED BY F.J. Burger TELEP110NE 802-257-7711 Ext. 137 SAFETY RELATED MAINTENANCE Page 2 of 5 NATURE OF MALFUNCTION ER OR OUTAGE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION RilR Piping Support Corrective N/A Construction Rejectable NDT llD-200D Removed Indications MR 80-1134 Defects Indication on the Pipe to Saddle Welds llPCI Piping Support 11-31 Corrective N/A ' Normal Operation Loose Turnbuckle Tightened Turnbuckle MR 80-1153 Spring llangers llPCI-3 and Corrective N/A Normal Operation ti-107A, RilR llD-194C and Settings Out of Reset llangers MR 80-1187 Spec. | |||
DOCKET NO. 50-271 UNIT Vermont Yankee DATE 810113 COMPLETED BY F.J. Burger TELEP110NE 802-257-7711 Ext. 137 SAFETY RELATED MAINTENANCE Page 2 of 5 NATURE OF MALFUNCTION ER OR OUTAGE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION RilR Piping Support Corrective N/A Construction Rejectable NDT llD-200D Removed Indications MR 80-1134 Defects Indication on the Pipe to Saddle Welds llPCI Piping Support 11-31 Corrective N/A ' Normal Operation Loose Turnbuckle Tightened Turnbuckle MR 80-1153 Spring llangers llPCI-3 and Corrective N/A Normal Operation | |||
ti-107A, RilR llD-194C and Settings Out of Reset llangers MR 80-1187 Spec. | |||
IID-87C. RR-65 and 66, CSilD-84 R11R Pumps P 10-1A rC Preventive N/A Updated Informa- Need for New Replaced Seals MR 80-1200 tion f rom the Type "0" Ring Factory RilR Minimum Flow Valve Corrective N/A Failed Breaker Valve Inoper- Replaced Breaker V10-16A MR 80-1246 able Shock Suppressor RilR-4 Corrective N/A Jarred During Fluid Leakage Rebuilt Suppressor MR 80-1255 Outage Maintenance Spring liangers RR 29 and Corrective N/A Normal Operation Setting Out of Reset llangers 30, RilR 11D-16 and llD 189 MR 80-1302 Spec. | IID-87C. RR-65 and 66, CSilD-84 R11R Pumps P 10-1A rC Preventive N/A Updated Informa- Need for New Replaced Seals MR 80-1200 tion f rom the Type "0" Ring Factory RilR Minimum Flow Valve Corrective N/A Failed Breaker Valve Inoper- Replaced Breaker V10-16A MR 80-1246 able Shock Suppressor RilR-4 Corrective N/A Jarred During Fluid Leakage Rebuilt Suppressor MR 80-1255 Outage Maintenance Spring liangers RR 29 and Corrective N/A Normal Operation Setting Out of Reset llangers 30, RilR 11D-16 and llD 189 MR 80-1302 Spec. | ||
o DOCKET NO. 50-271 UNIT Vermont Yankee . | |||
o | DATE 810113 COMPLETED BY F.J. Burger TEI.EP110NE 802-257-7711 Ext.- 137 SAFETY RELATED MAINTENANCE Page 3 of 5 NATURE OF MALFUNCTION ER OR OMGE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION "B" RPS !!G Set UV Relay Corrective N/A Worn Parts Did Not Trip Replaced Breaker MR 80-1316 "E" IRM Bypass Switch Corrective N/A Worn Parts Relay Inopera-Relsy Replaced Relay MR 80-1317 , ble Service Water Pumps Corrective N/A Normal Operations Out of Cal. | ||
DOCKET NO. 50-271 UNIT Vermont Yankee . | |||
DATE 810113 | |||
P7-1A ~ D Discharge 21eaned and Recalibrated MR 80-1347 3 ages. | P7-1A ~ D Discharge 21eaned and Recalibrated MR 80-1347 3 ages. | ||
Pressure Gages | Pressure Gages Service Water Pump P7-1A Corrective N/A Normal Wear Packing Leak Repacked Pump MR 80-1354 RWCU Valve V12-18 Corrective N/A Normal Wear Bonnet Seal Replaced Seal Ring MR 80-1360 Leakage Shock Suppressor Corrective N/A Normal Operation I.eakage at Sight RR 76 Refilled Reservoir and MR 80-1361 31 ass Tie.htened Fittings Reactor Drain Valve V2-99 Corrective N/A , Normal Operation Packing Leak Repacked Valve MR 80-1380 RilR Valve V10-81A Corrective N/A Normal Operation Packing Leak Adjusted Packing MR 80-1381 RllR Valve V10-46A Corrective N/A Normal Operation llonnet Leakage Replaced Gasket MR 80-1382 | ||
Service Water Pump P7-1A Corrective N/A Normal Wear Packing Leak Repacked Pump MR 80-1354 | |||
RWCU Valve V12-18 Corrective N/A Normal Wear Bonnet Seal Replaced Seal Ring MR 80-1360 Leakage Shock Suppressor Corrective N/A Normal Operation I.eakage at Sight RR 76 Refilled Reservoir and MR 80-1361 31 ass Tie.htened Fittings Reactor Drain Valve V2-99 Corrective N/A , Normal Operation Packing Leak Repacked Valve MR 80-1380 RilR Valve V10-81A Corrective N/A Normal Operation Packing Leak Adjusted Packing MR 80-1381 RllR Valve V10-46A Corrective N/A Normal Operation llonnet Leakage Replaced Gasket MR 80-1382 | |||
DOCKET NO. 3o-271 UNIT Vermont Yankee DATE 810113 COMPLETED BY F.J. Burger TELEP110NE 802-257-7711 Ext. 137 SAFETY RELATED MAINTENANPE Page 4 of 5 NATURE OF MALFUNCTION ER OR OU'I' ACE EQUIPMENT HAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION IIPCI Valve V23-19 Corrective N/A Normal Operation Packing Leak Adjusted Packing MR 80-1383 RCIC Valve V13-22 Corrective N/A Normal Operation Packing Leak | |||
DOCKET NO. 3o-271 | |||
UNIT Vermont Yankee DATE 810113 COMPLETED BY F.J. Burger TELEP110NE 802-257-7711 Ext. 137 SAFETY RELATED MAINTENANPE Page 4 of 5 NATURE OF MALFUNCTION ER OR OU'I' ACE EQUIPMENT HAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION | |||
IIPCI Valve V23-19 Corrective N/A Normal Operation Packing Leak Adjusted Packing MR 80-1383 RCIC Valve V13-22 Corrective N/A Normal Operation Packing Leak | |||
* Adjusted Packing MR 80-1384 Level Switch LS-6-52B Corrective N/A Normal Operation Tubing Joint Replaced Fittings MR 80-1385 Leak Lsvel Switch LS-2-3-72B Corrective N/A Normal Operation Tubing Joint Tightened Fittings MR 80-1386 Leak RCIC Valve V13-15 Corrective N/A Normal Operation Bonnet Leakage P.eplaced Seal Ring MR 80-1388 RCIC Valve V13-15 Corrective LER 80-43/3L Normal Operation Excessive Seat Lapped Disc and Seat v3 80-1408 Leakage "B" Diesel Pyrometers Corrective N/A Vibration Not Indicating | * Adjusted Packing MR 80-1384 Level Switch LS-6-52B Corrective N/A Normal Operation Tubing Joint Replaced Fittings MR 80-1385 Leak Lsvel Switch LS-2-3-72B Corrective N/A Normal Operation Tubing Joint Tightened Fittings MR 80-1386 Leak RCIC Valve V13-15 Corrective N/A Normal Operation Bonnet Leakage P.eplaced Seal Ring MR 80-1388 RCIC Valve V13-15 Corrective LER 80-43/3L Normal Operation Excessive Seat Lapped Disc and Seat v3 80-1408 Leakage "B" Diesel Pyrometers Corrective N/A Vibration Not Indicating | ||
#4 & #6 Cylinder Resoldered Connections MR 80-1437 RilR Valve V10-27A Corrective Outage 80-24 Normal Operation Excessive Seat Replaced Parts Ad Necessary MR 80-1442 Leakage R11R Valve VJ0-46A Corrective Outage 80-24 Normal Operation Excessive Seat Replaced Parts As Necessary MR 80-1443 Leakage | #4 & #6 Cylinder Resoldered Connections MR 80-1437 RilR Valve V10-27A Corrective Outage 80-24 Normal Operation Excessive Seat Replaced Parts Ad Necessary MR 80-1442 Leakage R11R Valve VJ0-46A Corrective Outage 80-24 Normal Operation Excessive Seat Replaced Parts As Necessary MR 80-1443 Leakage | ||
DOCKET No. 50-271 UNIT Vermont Yankee , | DOCKET No. 50-271 UNIT Vermont Yankee , | ||
DATE 810113 | DATE 810113 COMPLETED BY F.J. Burger TELEPHONE 802-257-7711 Ext. 137 SAFETY RELATED MAINTENANCE Page 5 of 5 NATURE OF MALFUNCTION LER OR OUTAGE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION RilR Valve V10-81A Corrective Outage 80-24 Failed Packing Leakage Repacked Valve MR 80-1454 9 | ||
COMPLETED BY F.J. Burger TELEPHONE 802-257-7711 Ext. 137 SAFETY RELATED MAINTENANCE Page 5 of 5 NATURE OF MALFUNCTION LER OR OUTAGE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION RilR Valve V10-81A Corrective Outage 80-24 Failed Packing Leakage Repacked Valve MR 80-1454 | |||
9 | |||
~.* | ~.* | ||
DOCKET NO. 50-271 UNIT Vermont Yankee DATE 810113 C0XPLETED BY F.J. Burger TELEPH0:TE 802-257-7711 Ext. 137 December REPORT MONTH SLS ARY OF OPERATING EXPERIENC_ES_ | DOCKET NO. 50-271 UNIT Vermont Yankee DATE 810113 C0XPLETED BY F.J. Burger TELEPH0:TE 802-257-7711 Ext. 137 December REPORT MONTH SLS ARY OF OPERATING EXPERIENC_ES_ | ||
Highlights Vermont Yankee operated at 2.6% of rated thermal power for the month. | Highlights Vermont Yankee operated at 2.6% of rated thermal power for the month. | ||
Gross electrical generation was 7171 MWH or 1.8% of design electrical capacity. | Gross electrical generation was 7171 MWH or 1.8% of design electrical capacity. | ||
| Line 202: | Line 126: | ||
12/1/80 At the beginning of the reporting period the plant was shutdown | 12/1/80 At the beginning of the reporting period the plant was shutdown | ||
[ for the replacement of Reactor Water Cleanup System piping. | [ for the replacement of Reactor Water Cleanup System piping. | ||
12/23/80 At 1910 hrs. a reactor startup was initiated. Criticality was reached at 1950 hrs. | 12/23/80 At 1910 hrs. a reactor startup was initiated. Criticality was reached at 1950 hrs. | ||
12/24/80 At 0752 hrs. the reactor scrammed due to a combination of a feedwater instrument failure and a malfunction of the turbine generator mechanical pressure regulator. | 12/24/80 At 0752 hrs. the reactor scrammed due to a combination of a feedwater instrument failure and a malfunction of the turbine generator mechanical pressure regulator. | ||
| Line 211: | Line 134: | ||
Power was maintained at 23% due to the replacement of additional Reactor Water Cleanup piping. | Power was maintained at 23% due to the replacement of additional Reactor Water Cleanup piping. | ||
, 12/31/80 At the end of the reporting cycle the plant was at 23% of rated l thermal power. | , 12/31/80 At the end of the reporting cycle the plant was at 23% of rated l thermal power. | ||
l L | |||
i | |||
.- . , .-}} | .- . , .-}} | ||
Revision as of 09:06, 31 January 2020
| ML19341A045 | |
| Person / Time | |
|---|---|
| Site: | Vermont Yankee File:NorthStar Vermont Yankee icon.png |
| Issue date: | 01/13/1981 |
| From: | Bernard D VERMONT YANKEE NUCLEAR POWER CORP. |
| To: | |
| Shared Package | |
| ML19341A044 | List: |
| References | |
| NUDOCS 8101210505 | |
| Download: ML19341A045 (11) | |
Text
'
-... s' .
]
\_. / 1 VERMONT YANKEE NUCLEAR POWER STATION MONTHLY STATISTICAL" REPORT 80-12 FOR THE MONTH OF DECDiBER, 1980 l
l 8101210$
OPERATING DATA REPORT DOCKET NO. 50-271 DATE 810113 COMPLETED BY D. Bernard TELEPHONE 617-872-8100 ext. 2390-OPERATING STAIUS_
- l. Unit Name: Vermont Yankee
- 2. Reporting Period: December
- 3. Licensed Thermal Power (Wt): 1593
- 4. Nameplate Rating (Gross We): 540
- 5. Dasign Electrical Rating (Net We): 514 (one-O 504 (ci ned) '
- 6. Maximum Dependable capacity (Gross We): 535 ,
- 7. Maximum Dependable Capacity (Net We): 504
- 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(Nec We):
- 10. Rsasons For Restrictions, If Any:
This Month Yr--to-Date Cumulative
- 11. Hours In Reporting Period 744.00 8,784.00 ---
- 12. Number Of Hours Reactor Was Critical 110.50 6.377.39 57.535.78
- 13. Rsactor Reserve Shutdown Hours 0.00 0.00 0.00
- 14. Hours Generator On-Line 73.70 6,273.80 55.601.58
- 15. Unit Reserve Shutdown Hours 0.00 0.00 0.00
- 16. Gross Thermal Energy Generated (WR) 30,933.00 9,378,904.00 78,603,517.00
- 17. Gross' Electrical Energy Generated (W R) 7.171.00 3.143.177.00 26.112.847.00
- 18. Nst Electrical Energy Generated (WH) 6.406.00 2.979.214.00 24 747 979 nn
- 19. Unit Service Factor o of 71 e 75_s1
- 20. Unit Availability Factor 9.91 71.42 76.61
- 21. Unit Capacity Factor (Using MDC Net) 1.71 67.29 67.65
- 22. Unit Capacity Factor (Using DER Net) 1.68 65.09 AA u
- 23. Unit Forced Outage Rate 90.06 13.11 7.31
- 24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):
l 25. If Shut Down At End Of Report Period, Estimated Date of Startup:
L 26. Units In Test Status (Prior to Commercial Operation): Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION
AVERAGE DAILY UNIT P0kT.R LEVEL l i
4 DOCKET NO. 50-271 UNIT Vermont Yankee l
DATE 810113 -
1 l
CCMPLETD 3Y F.J. Burger 1 1
TELEPHONE 802-257-7711 Ext. 137 l i
MONTE December DAY AVERAGE DAILY POWER LE7EL DAY A7ERAGE DAILY PCWER LEVEL (MWe-Net) (MWe-Net) -
- 1. 0 17. 0
- 2. O la, 0
- 3. 0 19, 0
- 4. 0 20. 0
- 5. 0 ,1, 0
- 6. o 22. n
- 7. o 23. n
- 3. o 24. n
- 9. o 25. n
- 10. 0 2.. . o
, 11. 0 27. 0
- 12. 0 28. 15
- 13. 0 29. 73
- 14. 0 30. 90
- 13. 0 31. 89 l
l
- 16. O INSTRUCTIONS:
Cu :his fornac, list :he average daily uni: pcwer level in MWe-Ne: for each day in
- he reporting non:h. Ccmpute to che neares: whole negawatt.
l
UNIT SilUTDOWNS AND POWER REDUCTIONS DOCKET NO 50-271 UNIT NAME Vermont Yankee REPORT MONTil December COMPl.ETED BY F.J. Burger TELEPilONE 802-257-7711 Ext. 137 Page 1 of 2 E7 ca 'o o y cause & Corrective No. Date y gg g gg License g .n I ""
a' O:0 $ .0 $ $ $3 E~8 Prevent Recurrence gv y g g n: Report # go go E g o S
80-22 801124 F 559.9 A* 4* 80-37/1T CG PIPEXX The pipe cracking is believed to have been (cont) caused by ICSCC. The Sweep-0-Let is under-going a failure analysis to determine the cause of the cracking.
The Sweep-0-Let and piping are being replaced with materials which meet the Intent of Section II of NUREG 0313, Rev. 1, dated October, 1979. -
- See RO 80-37/1T 80-23 801224 F 1.0 A 3 N/A Cll INSTRU Reactor scram caused by a combination of a llA MECFUN feedwater instrument failure and a Turbine Generator mechanical pressure regulator malfunction.
I r: Forced Reason: Method: Exhibit G- Instructions S: Scheduled A-Equipment Failure (Explain) 'l- Manual for Preparation of l>ata ll-Ma tutenance 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 Exhibit I - Same Source G-Operational Error (Explain)
II-Other (Explain)
, ann
IINIT SilVTDOWNS AND POWER REDUCTIONS DOCKET NO 50-271 UNIT NAME Vermont Yankee REPORT MONTil December DATE 810113 COMPl.ETED BY F.J. Burger TEl.EPil0NE 802-257-7711 Ext. 137 Page 2 of 2 E9 m Y o y Cause & Corrective No. Date 'g ;jg g 7j g License gg .n H =
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80-24 801225 F 106.9 A 4 N/A CF VALVEX Maintained reactor shutdown from previous scram to repair RllR System valve leakage.
80-25 801229 S 2.5 B N/A N/A N/A N/A Turbine Ge.wrator removed from the grid for oversp.ted testing.
I F: Forced Reason: Mettrod: Exhibit G- Instructions S: Scheduled A-Equipment Failure (Explain) 'l- Manual for Preggration of Data B-Haintenance 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 5
F-Administrative F.xhibit I - Same Source G-Operational Error (Explain)
II-Other (Explain)
DOCKET NO. 50-271 UNIT Vermont Yankee DATE 810113 COMPLETED BY F.J. Bureer TELEPHONE 802-257-7711 Ext _ 117 SAFETY RELATED MAINTENANCE Page 1 of 5 NATURE OF MALFUNCTION ER OR OUTACE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION "D" RilR Pump,P-10-ID Corrective N/A Normal Operation Seal Leakage Replaced Seal MR 80-0289 Instrument Isolation Corrective N/A Normal Operation Leakage Repacked Valve Valve V2-12B MR 80-0508 A-D kliR Pumps Corrective N/A NoL'al Operation Leakage Replaced Tubing and Connec-P-10-1A +1D Seal Water MR 80-0804 tions Supply Connections at pump suctions Containment Air Monitor Corrective N/A Shifted Valve Leakage Installed Re-designed Isolation Valve 76 A MR 80-0995 Internals Prevent- Valve Internals Supplied ed Closure by the Factory CRD liydraulic Control Unit Corrective N/A Normal Operation Air Leakage Replaced Solenoids and 14-31 Air Solenoids MR 80-1045 Rebuilt Valves
- 3 TIP Machine Containment Corrective N/A Normal Operation Leakage Replaced Seals Penetration MR 80-1051 CRD liydraulic Control Corrective N/A Set Point Drift Out of Calibra- Recalibrated Switch Unit 30-07 Alarm Pressure MR 80-1127 tion Switch RWCU line CUW-18 Corrective LER 80-37/IP 3ee LER Leakage Replaced Affected Compon-MR 80-1133 ents
DOCKET NO. 50-271 UNIT Vermont Yankee DATE 810113 COMPLETED BY F.J. Burger TELEP110NE 802-257-7711 Ext. 137 SAFETY RELATED MAINTENANCE Page 2 of 5 NATURE OF MALFUNCTION ER OR OUTAGE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION RilR Piping Support Corrective N/A Construction Rejectable NDT llD-200D Removed Indications MR 80-1134 Defects Indication on the Pipe to Saddle Welds llPCI Piping Support 11-31 Corrective N/A ' Normal Operation Loose Turnbuckle Tightened Turnbuckle MR 80-1153 Spring llangers llPCI-3 and Corrective N/A Normal Operation ti-107A, RilR llD-194C and Settings Out of Reset llangers MR 80-1187 Spec.
IID-87C. RR-65 and 66, CSilD-84 R11R Pumps P 10-1A rC Preventive N/A Updated Informa- Need for New Replaced Seals MR 80-1200 tion f rom the Type "0" Ring Factory RilR Minimum Flow Valve Corrective N/A Failed Breaker Valve Inoper- Replaced Breaker V10-16A MR 80-1246 able Shock Suppressor RilR-4 Corrective N/A Jarred During Fluid Leakage Rebuilt Suppressor MR 80-1255 Outage Maintenance Spring liangers RR 29 and Corrective N/A Normal Operation Setting Out of Reset llangers 30, RilR 11D-16 and llD 189 MR 80-1302 Spec.
o DOCKET NO. 50-271 UNIT Vermont Yankee .
DATE 810113 COMPLETED BY F.J. Burger TEI.EP110NE 802-257-7711 Ext.- 137 SAFETY RELATED MAINTENANCE Page 3 of 5 NATURE OF MALFUNCTION ER OR OMGE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION "B" RPS !!G Set UV Relay Corrective N/A Worn Parts Did Not Trip Replaced Breaker MR 80-1316 "E" IRM Bypass Switch Corrective N/A Worn Parts Relay Inopera-Relsy Replaced Relay MR 80-1317 , ble Service Water Pumps Corrective N/A Normal Operations Out of Cal.
P7-1A ~ D Discharge 21eaned and Recalibrated MR 80-1347 3 ages.
Pressure Gages Service Water Pump P7-1A Corrective N/A Normal Wear Packing Leak Repacked Pump MR 80-1354 RWCU Valve V12-18 Corrective N/A Normal Wear Bonnet Seal Replaced Seal Ring MR 80-1360 Leakage Shock Suppressor Corrective N/A Normal Operation I.eakage at Sight RR 76 Refilled Reservoir and MR 80-1361 31 ass Tie.htened Fittings Reactor Drain Valve V2-99 Corrective N/A , Normal Operation Packing Leak Repacked Valve MR 80-1380 RilR Valve V10-81A Corrective N/A Normal Operation Packing Leak Adjusted Packing MR 80-1381 RllR Valve V10-46A Corrective N/A Normal Operation llonnet Leakage Replaced Gasket MR 80-1382
DOCKET NO. 3o-271 UNIT Vermont Yankee DATE 810113 COMPLETED BY F.J. Burger TELEP110NE 802-257-7711 Ext. 137 SAFETY RELATED MAINTENANPE Page 4 of 5 NATURE OF MALFUNCTION ER OR OU'I' ACE EQUIPMENT HAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION IIPCI Valve V23-19 Corrective N/A Normal Operation Packing Leak Adjusted Packing MR 80-1383 RCIC Valve V13-22 Corrective N/A Normal Operation Packing Leak
- Adjusted Packing MR 80-1384 Level Switch LS-6-52B Corrective N/A Normal Operation Tubing Joint Replaced Fittings MR 80-1385 Leak Lsvel Switch LS-2-3-72B Corrective N/A Normal Operation Tubing Joint Tightened Fittings MR 80-1386 Leak RCIC Valve V13-15 Corrective N/A Normal Operation Bonnet Leakage P.eplaced Seal Ring MR 80-1388 RCIC Valve V13-15 Corrective LER 80-43/3L Normal Operation Excessive Seat Lapped Disc and Seat v3 80-1408 Leakage "B" Diesel Pyrometers Corrective N/A Vibration Not Indicating
- 4 & #6 Cylinder Resoldered Connections MR 80-1437 RilR Valve V10-27A Corrective Outage 80-24 Normal Operation Excessive Seat Replaced Parts Ad Necessary MR 80-1442 Leakage R11R Valve VJ0-46A Corrective Outage 80-24 Normal Operation Excessive Seat Replaced Parts As Necessary MR 80-1443 Leakage
DOCKET No. 50-271 UNIT Vermont Yankee ,
DATE 810113 COMPLETED BY F.J. Burger TELEPHONE 802-257-7711 Ext. 137 SAFETY RELATED MAINTENANCE Page 5 of 5 NATURE OF MALFUNCTION LER OR OUTAGE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION RilR Valve V10-81A Corrective Outage 80-24 Failed Packing Leakage Repacked Valve MR 80-1454 9
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DOCKET NO. 50-271 UNIT Vermont Yankee DATE 810113 C0XPLETED BY F.J. Burger TELEPH0:TE 802-257-7711 Ext. 137 December REPORT MONTH SLS ARY OF OPERATING EXPERIENC_ES_
Highlights Vermont Yankee operated at 2.6% of rated thermal power for the month.
Gross electrical generation was 7171 MWH or 1.8% of design electrical capacity.
Ocerating Sanmary The following is a chronological description of plant operations including other pertinent items of interest for the month:
12/1/80 At the beginning of the reporting period the plant was shutdown
[ for the replacement of Reactor Water Cleanup System piping.
12/23/80 At 1910 hrs. a reactor startup was initiated. Criticality was reached at 1950 hrs.
12/24/80 At 0752 hrs. the reactor scrammed due to a combination of a feedwater instrument failure and a malfunction of the turbine generator mechanical pressure regulator.
At 0852 hrs. the shutdown was continued to repair excessive valve seat leakage in the RHR system.
12/27/80 At 2050 hrs. a reactor startup was initiated. Criticality was re :hed at 2128 hrs.
12/28/80 At 1948 hrs. the turbine generator was phased onto the grid.
12/29/80 At 0939 the turbine generator was removed from the grid for overspeed testing. At 1207 the turbine generator was phased onto the grid.
Power was maintained at 23% due to the replacement of additional Reactor Water Cleanup piping.
, 12/31/80 At the end of the reporting cycle the plant was at 23% of rated l thermal power.
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