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Category:MONTHLY OPERATING ANALYSIS REPORT
MONTHYEARBVY-99-127, Monthly Operating Rept for Sept 1999 for Vermont Yankee Nuclear Power Station.With1999-09-30030 September 1999 Monthly Operating Rept for Sept 1999 for Vermont Yankee Nuclear Power Station.With BVY-99-112, Monthly Operating Rept for Aug 1999 for Vermont Yankee.With1999-08-31031 August 1999 Monthly Operating Rept for Aug 1999 for Vermont Yankee.With BVY-99-102, Monthly Operating Rept for July 1999 for Vermont Yankee. with1999-07-31031 July 1999 Monthly Operating Rept for July 1999 for Vermont Yankee. with BVY-99-090, Monthly Operating Rept for June 1999 for Vermont Yankee Nuclear Power Station.With1999-06-30030 June 1999 Monthly Operating Rept for June 1999 for Vermont Yankee Nuclear Power Station.With BVY-99-077, Monthly Operating Rept for May 1999 for Vermont Yankee Nuclear Power Station.With1999-05-31031 May 1999 Monthly Operating Rept for May 1999 for Vermont Yankee Nuclear Power Station.With BVY-99-068, Monthly Operating Rept for Apr 1999 for Vynp.With1999-04-30030 April 1999 Monthly Operating Rept for Apr 1999 for Vynp.With BVY-99-046, Monthly Operating Rept for Mar 1999 for Vermont Yankee Nuclear Power Station.With1999-03-31031 March 1999 Monthly Operating Rept for Mar 1999 for Vermont Yankee Nuclear Power Station.With BVY-99-035, Monthly Operating Rept for Feb 1999 for Vermont Yankee Nuclear Station.With1999-02-28028 February 1999 Monthly Operating Rept for Feb 1999 for Vermont Yankee Nuclear Station.With BVY-99-001, Monthly Operating Rept for Dec 1998 for Vermont Yankee Nuclear Power Station1998-12-31031 December 1998 Monthly Operating Rept for Dec 1998 for Vermont Yankee Nuclear Power Station BVY-98-163, Monthly Operating Rept for Nov 1998 for Vermont Yankee Nuclear Power Station.With1998-11-30030 November 1998 Monthly Operating Rept for Nov 1998 for Vermont Yankee Nuclear Power Station.With BVY-98-154, Monthly Operating Rept for Oct 1998 for Vermont Yankee Nuclear Power Station.With1998-10-31031 October 1998 Monthly Operating Rept for Oct 1998 for Vermont Yankee Nuclear Power Station.With BVY-98-149, Monthly Operating Rept for Sept 1998 for Vermont Yankee Nuclear Power Station.With1998-09-30030 September 1998 Monthly Operating Rept for Sept 1998 for Vermont Yankee Nuclear Power Station.With BVY-98-135, Monthly Operating Rept for Aug 1998 for Vermont Yankee Nuclear Power Station.With1998-08-31031 August 1998 Monthly Operating Rept for Aug 1998 for Vermont Yankee Nuclear Power Station.With BVY-98-122, Monthly Operating Rept for July 1998 for Vermont Yankee Nuclear Power Station1998-07-31031 July 1998 Monthly Operating Rept for July 1998 for Vermont Yankee Nuclear Power Station BVY-98-098, Monthly Operating Rept for June 1998 for Vermont Yankee Nuclear Power Station1998-06-30030 June 1998 Monthly Operating Rept for June 1998 for Vermont Yankee Nuclear Power Station BVY-98-081, Monthly Operating Rept for May 1998 for Vermont Yankee Nuclear Power Station1998-05-31031 May 1998 Monthly Operating Rept for May 1998 for Vermont Yankee Nuclear Power Station BVY-98-068, Monthly Operating Rept for Apr 1998 for Vermont Yankee Nuclear Power Station1998-04-30030 April 1998 Monthly Operating Rept for Apr 1998 for Vermont Yankee Nuclear Power Station BVY-98-053, Monthly Statistical Rept for Mar 1998 for Vynp1998-03-31031 March 1998 Monthly Statistical Rept for Mar 1998 for Vynp ML20248L1581998-02-28028 February 1998 Monthly Operating Rept for Feb 1998 for Vermont Yankee Nuclear Power Station ML20217M7801998-01-31031 January 1998 Monthly Operating Rept for Jan 1998 for Vynp Station ML20198L6111997-12-31031 December 1997 Monthly Operating Rept for Dec 1997 for Vynp Station BVY-97-161, Monthly Operating Rept for Nov 1997 for Vermont Yankee Nuclear Power Station1997-11-30030 November 1997 Monthly Operating Rept for Nov 1997 for Vermont Yankee Nuclear Power Station BVY-97-145, Monthly Operating Rept for Oct 1997 for Vermont Yankee Nuclear Power Station1997-10-31031 October 1997 Monthly Operating Rept for Oct 1997 for Vermont Yankee Nuclear Power Station BVY-97-126, Monthly Operating Rept for Sept 1997 for Vermont Yankee Nuclear Power Station1997-09-30030 September 1997 Monthly Operating Rept for Sept 1997 for Vermont Yankee Nuclear Power Station BVY-97-111, Monthly Operating Rept for Aug 1997 for Vermont Yankee Nuclear Power Station1997-08-31031 August 1997 Monthly Operating Rept for Aug 1997 for Vermont Yankee Nuclear Power Station BVY-97-098, Monthly Operating Rept for Jul 1997 for Vermont Yankee Nuclear Power Station1997-07-31031 July 1997 Monthly Operating Rept for Jul 1997 for Vermont Yankee Nuclear Power Station BVY-97-088, Monthly Operating Rept for June 1997 for Nynps1997-06-30030 June 1997 Monthly Operating Rept for June 1997 for Nynps BVY-97-074, Monthly Operating Rept for May 1997 for Vermont Yankee Nuclear Power Station1997-05-31031 May 1997 Monthly Operating Rept for May 1997 for Vermont Yankee Nuclear Power Station BVY-97-059, Monthly Operating Rept for Apr 1997 for Vermont Yankee Nuclear Station1997-04-30030 April 1997 Monthly Operating Rept for Apr 1997 for Vermont Yankee Nuclear Station BVY-97-042, Monthly Operating Rept for Mar 1997 for Vermont Yankee Nuclear Power Station1997-03-31031 March 1997 Monthly Operating Rept for Mar 1997 for Vermont Yankee Nuclear Power Station BVY-97-033, Monthly Operating Rept for Feb 1997 for Vermont Yankee Power Station1997-02-28028 February 1997 Monthly Operating Rept for Feb 1997 for Vermont Yankee Power Station BVY-97-021, Monthly Operating Rept for Jan 1997 for VYNPS1997-01-31031 January 1997 Monthly Operating Rept for Jan 1997 for VYNPS BVY-97-001, Monthly Operating Rept for Dec 1996 for Vermont Yankee Nuclear Power Station1996-12-31031 December 1996 Monthly Operating Rept for Dec 1996 for Vermont Yankee Nuclear Power Station BVY-96-154, Monthly Operating Rept for Nov 1996 for Vermont Yankee Nuclear Power Station1996-11-30030 November 1996 Monthly Operating Rept for Nov 1996 for Vermont Yankee Nuclear Power Station BVY-96-138, Monthly Operating Rept for Oct 1996 for Vermont Yankee Nuclear Power Station1996-10-31031 October 1996 Monthly Operating Rept for Oct 1996 for Vermont Yankee Nuclear Power Station BVY-96-114, Monthly Operating Rept for Sept 1996 for Vynp1996-09-30030 September 1996 Monthly Operating Rept for Sept 1996 for Vynp BVY-96-103, Monthly Operating Rept for Aug 1996 for Vermont Yankee Nuclear Power Station1996-08-31031 August 1996 Monthly Operating Rept for Aug 1996 for Vermont Yankee Nuclear Power Station BVY-96-095, Monthly Operating Rept for July 1996 for VT Yankee Nuclear Power Station1996-07-31031 July 1996 Monthly Operating Rept for July 1996 for VT Yankee Nuclear Power Station BVY-96-087, Monthly Operating Rept for June 1996 for Vermont Yankee Nuclear Power Station1996-06-30030 June 1996 Monthly Operating Rept for June 1996 for Vermont Yankee Nuclear Power Station BVY-96-072, Monthly Operating Rept for May 1996 for Vermont Yankee Nuclear Power Station1996-05-31031 May 1996 Monthly Operating Rept for May 1996 for Vermont Yankee Nuclear Power Station BVY-96-057, Monthly Operating Rept for Apr 1996 for VT Yankee Power Station1996-04-30030 April 1996 Monthly Operating Rept for Apr 1996 for VT Yankee Power Station BVY-96-041, Monthly Operating Rept for Mar 1996 for Vynp1996-03-31031 March 1996 Monthly Operating Rept for Mar 1996 for Vynp BVY-96-018, Monthly Statistical Rept for Feb 1996 for VT Yankee Nuclear Power Station1996-02-29029 February 1996 Monthly Statistical Rept for Feb 1996 for VT Yankee Nuclear Power Station BVY-96-009, Monthly Operating Rept for Jan 1996 for Vermont Yankee Nuclear Power Station1996-01-31031 January 1996 Monthly Operating Rept for Jan 1996 for Vermont Yankee Nuclear Power Station BVY-96-001, Monthly Operating Rept for Dec 1995 for Vermont Yankee Nuclear Power Station1995-12-31031 December 1995 Monthly Operating Rept for Dec 1995 for Vermont Yankee Nuclear Power Station ML20095F6601995-11-30030 November 1995 Last Page of Monthly Operating Rept for Nov 1995 for Vermont Yankee BVY-95-131, Monthly Operating Rept for Nov 1995 for Vermont Yankee Nuclear Power Station1995-11-30030 November 1995 Monthly Operating Rept for Nov 1995 for Vermont Yankee Nuclear Power Station BVY-95-118, Monthly Operating Rept for Oct 1995 for Vynp1995-10-31031 October 1995 Monthly Operating Rept for Oct 1995 for Vynp BVY-95-106, Monthly Operating Rept for Sept 1995 for Vynp1995-09-30030 September 1995 Monthly Operating Rept for Sept 1995 for Vynp ML20092F5901995-08-31031 August 1995 Monthly Operating Rept for Aug 1995 for Vermont Yankee Nuclear Station 1999-09-30
[Table view] Category:TEXT-SAFETY REPORT
MONTHYEARML20217L8831999-10-21021 October 1999 Safety Evaluation Supporting Proposed Alternatives to Code Requirements Described in RR-V17 & RR-V18 ML20217G2041999-10-13013 October 1999 Safety Evaluation Supporting Amend 179 to License DPR-28 BVY-99-127, Monthly Operating Rept for Sept 1999 for Vermont Yankee Nuclear Power Station.With1999-09-30030 September 1999 Monthly Operating Rept for Sept 1999 for Vermont Yankee Nuclear Power Station.With ML20212C2551999-09-17017 September 1999 Safety Evaluation Supporting Amend 175 to License DPR-28 BVY-99-112, Monthly Operating Rept for Aug 1999 for Vermont Yankee.With1999-08-31031 August 1999 Monthly Operating Rept for Aug 1999 for Vermont Yankee.With BVY-99-109, Ro:On 990812,stack Ng Effluent Instrumentation for PAM Was Declared Oos.Caused by Instrument Drift Due to Electronic Components Based on Insps by Instrumentation & Controls Dept.Detector & Preamplifier Will Be Replaced on 9908311999-08-19019 August 1999 Ro:On 990812,stack Ng Effluent Instrumentation for PAM Was Declared Oos.Caused by Instrument Drift Due to Electronic Components Based on Insps by Instrumentation & Controls Dept.Detector & Preamplifier Will Be Replaced on 990831 BVY-99-102, Monthly Operating Rept for July 1999 for Vermont Yankee. with1999-07-31031 July 1999 Monthly Operating Rept for July 1999 for Vermont Yankee. with ML20209J0081999-07-14014 July 1999 Special Rept:On 990615,diesel Driven Fire Pump Failed to Achieve Rated Flow of 2500 Gallons Per Minute.Pump Was Inoperable for Greater than 7 Days.Corrective Maint Was Performed to Reset Pump Lift Setting BVY-99-090, Monthly Operating Rept for June 1999 for Vermont Yankee Nuclear Power Station.With1999-06-30030 June 1999 Monthly Operating Rept for June 1999 for Vermont Yankee Nuclear Power Station.With ML20196G5071999-06-23023 June 1999 Vynp Assessment of On-Site Disposal of Contaminated Soil by Land Spreading BVY-99-077, Monthly Operating Rept for May 1999 for Vermont Yankee Nuclear Power Station.With1999-05-31031 May 1999 Monthly Operating Rept for May 1999 for Vermont Yankee Nuclear Power Station.With BVY-99-068, Monthly Operating Rept for Apr 1999 for Vynp.With1999-04-30030 April 1999 Monthly Operating Rept for Apr 1999 for Vynp.With ML20206E8741999-04-29029 April 1999 SER Determined That Flaw Evaluation Meets Rules of ASME Code & Assumed Crack Growth Rate Adequate for Application ML20206D9301999-04-27027 April 1999 1999 Emergency Preparedness Exercise 990427 Exercise Manual (Plume Portion) ML20205S4211999-04-16016 April 1999 Non-proprietary Version of Revised Page 4-3 of HI-981932 Technical Rept for Vermont Yankee Spent Fuel Pool Storage Expansion ML20205K7581999-04-0707 April 1999 Safety Evaluation Supporting Alternative Proposal for Reexamination of Circumferential Welds with Detected Flaw Indications in Plant RPV BVY-99-046, Monthly Operating Rept for Mar 1999 for Vermont Yankee Nuclear Power Station.With1999-03-31031 March 1999 Monthly Operating Rept for Mar 1999 for Vermont Yankee Nuclear Power Station.With ML20205F6631999-03-0404 March 1999 Jet Pump Riser Weld Leakage Evaluation BVY-99-035, Monthly Operating Rept for Feb 1999 for Vermont Yankee Nuclear Station.With1999-02-28028 February 1999 Monthly Operating Rept for Feb 1999 for Vermont Yankee Nuclear Station.With ML20205P8241999-02-28028 February 1999 Rev 2 to Vermont Yankee Cycle 20 Colr ML20203H9881999-02-18018 February 1999 SER Accepting Alternative to 10CFR50.55a(g)(6)(ii)(A) Augmented Reactor Vessel Exam at Vermont Yankee Nuclear Power Station.Technical Ltr Rept Encl ML20203A6951999-02-0404 February 1999 Revised Rev 2,App B to Vermont Yankee Operational QA Manual (Voqam) ML20199K7151999-01-21021 January 1999 Corrected Safety Evaluation Supporting Amend 163 Issued to FOL DPR-28.Pages 2 & 3 Required Correction & Clarification ML20199K6991999-01-20020 January 1999 Safety Evaluation Concluding That Request to Use YAEC-1339, Yankee Atomic Electric Co Application of FIBWR2 Core Hydraulics Code to BWR Reload Analysis, at Vermont Yankee Acceptable ML20199L5951999-01-14014 January 1999 Safety Evaluation Accepting Licensee Proposed Alternative to Code Requirement,Described in Rev 2 to Pump Relief Request RR-P10 Pursuant to 10CFR50.55a(a)(3)(i) BVY-99-071, Corp 1998 Annual Rept. with1998-12-31031 December 1998 Corp 1998 Annual Rept. with BVY-99-001, Monthly Operating Rept for Dec 1998 for Vermont Yankee Nuclear Power Station1998-12-31031 December 1998 Monthly Operating Rept for Dec 1998 for Vermont Yankee Nuclear Power Station ML20198H5481998-12-23023 December 1998 Rev 2 to Vermont Operational QA Manual,Voqam ML20196H8641998-12-0101 December 1998 Cycle 19 Operating Rept BVY-98-163, Monthly Operating Rept for Nov 1998 for Vermont Yankee Nuclear Power Station.With1998-11-30030 November 1998 Monthly Operating Rept for Nov 1998 for Vermont Yankee Nuclear Power Station.With ML20195C4161998-11-0909 November 1998 SER Accepting Request That NRC Approve ASME Code Case N-560, Alternative Exam Requirement for Class 1,Category B-J Piping Welds BVY-98-154, Monthly Operating Rept for Oct 1998 for Vermont Yankee Nuclear Power Station.With1998-10-31031 October 1998 Monthly Operating Rept for Oct 1998 for Vermont Yankee Nuclear Power Station.With ML20155B6471998-10-26026 October 1998 Safety Evaluation Accepting Jet Pump Riser Insp Results & Flaw Evaluation,Conducted During 1998 Refueling Outage ML20154N0891998-10-16016 October 1998 Rev 1 to Vermont Operational QA Program Manual (Voqam) ML20154B6951998-10-0101 October 1998 SER Re Licensee Response to GL 95-07, Pressure Locking & Thermal Binding of Safety-Related Power-Operated Gate Valves, for Vermont Yankee Nuclear Power Station BVY-98-149, Monthly Operating Rept for Sept 1998 for Vermont Yankee Nuclear Power Station.With1998-09-30030 September 1998 Monthly Operating Rept for Sept 1998 for Vermont Yankee Nuclear Power Station.With ML20239A1361998-09-0202 September 1998 SER Re License Request for NRC Review & Concurrence W/Changes to NRC-approved Fire Protection Program BVY-98-135, Monthly Operating Rept for Aug 1998 for Vermont Yankee Nuclear Power Station.With1998-08-31031 August 1998 Monthly Operating Rept for Aug 1998 for Vermont Yankee Nuclear Power Station.With ML20151U0361998-08-28028 August 1998 Non-proprietary Rev 1 to Holtec Rept HI-981932, Vermont Yankee Nuclear Power Station Spent Storage Expansion Project ML20237E9221998-08-20020 August 1998 Vynp 1998 Form NIS-1 Owners Summary Rept for ISI, 961103-980603 BVY-98-122, Monthly Operating Rept for July 1998 for Vermont Yankee Nuclear Power Station1998-07-31031 July 1998 Monthly Operating Rept for July 1998 for Vermont Yankee Nuclear Power Station ML20205F6491998-07-31031 July 1998 Rev 1 to GE-NE-B13-01935-02, Jet Pump Assembly Welds Flaw Evaluation Handbook for Vermont Yankee ML20236G0011998-06-30030 June 1998 Individual Plant Exam External Events BVY-98-098, Monthly Operating Rept for June 1998 for Vermont Yankee Nuclear Power Station1998-06-30030 June 1998 Monthly Operating Rept for June 1998 for Vermont Yankee Nuclear Power Station ML20248C5081998-05-31031 May 1998 Rev 2 to 24A5416, Supplemental Reload Licensing Rept for Vermont Yankee Nuclear Power Station Reload 19 Cycle 20 ML20248C4951998-05-31031 May 1998 Rev 1 to Vermont Yankee Nuclear Power Station Cycle 20 Colr BVY-98-081, Monthly Operating Rept for May 1998 for Vermont Yankee Nuclear Power Station1998-05-31031 May 1998 Monthly Operating Rept for May 1998 for Vermont Yankee Nuclear Power Station ML20247J8341998-05-31031 May 1998 Peak Suppression Pool Temp Analyses for Large Break LOCA Scenarios, for May 1998 ML20247G4001998-05-12012 May 1998 Interview Rept of Ej Massey ML20247E6351998-04-30030 April 1998 Rev 1 to GE-NE-B13-01935-LTR, Jet Pump Riser Welds Allowable Flaw Sizes Ltr Rept for Vermont Yankee 1999-09-30
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VERMONT YANKEE NUCLEAR POWER STATION MONTHLY STATISTICAL REPORT 79-09 FOR THE MONTH OF SEPTEMBER, 1979 7910160
/% .
OPERATING DATA REPORT DOCKET NO. 50-271 DATE 791012 COSIPLETED BY R.M. S]ogren TELEPHONE (617) 36e-9011 X2281 OPERATING STATUS Ver-ont Yankee Notes
- 1. Unit Name:
- 2. Reporting Period: Seotember 1979 1,593
- 3. Licensed Thermal Power (51Wti:
- 4. Nameplate Rating (Gross SIWE):
540
- 5. Design Electrical Rating (Net SIWE): 514 (open cvele) 504 ( :losed cycle)
- 6. Slaximum Dependable Capacity (Gross 51We): 535
- 7. Slaximum Dependable Capacity (Net 51We): 514
- 8. If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since I ast Report. Give Reasons:
4
- 9. Power Level To Which Restricted.If Any(Net SIWE): -
- 10. Reasons For Restrictions.If Any:
This Stonth Yr..to.Date Cumulative -
- 11. Hours in Reporting Period 720 6.551 --
- 12. Number Of Hours Reactor Was Critical 512 5,851.31 49,741.14
- 13. Reactor Resene Shutdown Hours 0 0 0
- 14. Hours Generator On-Line 506 5,814.78 , 47/947.78
- 15. Unit Reserve Shutdown Houn 0 0 0
- 16. Gross Thermal Energy Generated (5tWH) 705,627.5 8,757,691.5 67,144,509.0 ,
- 17. Gross Electrical Energy Generated (51WH) 228,616 _ 2,919,694 22,259,102
- 18. Net E'ectrical Energy Generated (31WH) 213.167 2,766,874 21,086,397
- 19. Unit Senice Factor 70.3 88.8 77.9
- 20. Unit Availability Factor 70.3 88.8 77.9
- 21. Unit Capacity Factor (Using 51DC Net) 58.7 83.8 67.9
- 22. Unit Capacity Factor (Using DER Net) 57.6 82.2 66.c
- 23. Unit Forced Outage Rate 0.0 1.7 6.6
- 24. Shutdowns Scheduled Over Next 6 Stonths (Type. Date.and Duration of Eschi:
- 25. If Shut Down At End Of Report Period. Estimated Date of Startup: November 1, 3979
- 26. Units in Test Status (Prior to Commercial Operation): Forecast Achieved INITIA L CRITICALITY '
. INITIAL ELECTRICITY C0515tERCIAL OPERATION
~'
iq' (9/77)
AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-271 UNIT Vermont Yankee DATE 791012 ,
CONtPLETED BY R. M. Sjogren TELEPHONE (617) 366-9011 X2281 5f0NTIf September 19/9 DAY AVERAGE DAILY POWER LEVEL DAY AVER AGE DAILY POWER LEVEL (51We-Net) (Side-Net) 1 430 37 422 2 426 gg 421 3 422 19 423 4 424 20 426 -
5 423 21 403 6 419 22 8 k 7 421 23 0 3 427 24 0 9 428 25 0 10 426 26 0 11 455 27 0 12 424 23 0 13 421 29 0 _
14 416 30 0 ,,,
15 419 31 0 16 426 ,
INSTRUCTIONS On this format. list the average d:dy unit power lesel in SlWe Net for each day in the reporting month. Compute to the nesrest whole megawatt.
(u!77) v I s
UNITSilulDOWNS AND POWER REDUCTIONS DOCKET NO. 50-271 UNIT N AhlE Vermont Yankee DATE 791012 COhlPLETEll ity R. M. Siocren REPORT Af 0NTig Sept. 1979 '
TELLPilONE IM U 300->U11 X2281 c
E ce '3 a 3 I I'*"5CC
~
5 *. $% Cause & Co,sective N$ 3 No. D.ise E.
$ E U 3$e SE Event g7 mo g.g cu o$ - e a e
c5 c s
Itcport a O Prevent Itcentrence O
79-17 790922 S 214 C 1 NA RC FtJELXX NA 1 2 3 4 F: Forced Iteason: Elethod: Exhibit G Instruci ons i
S: S(licif ulcil A.Eilnipment Failure (Explain) l-hlanual for Psepasation of D.sia 1
Il4faintenance of Test ? ?lanual Serain. Entiy Sheets foi 1.icensee J
C ltefueling 3-Automatic Scram. Event Itepent (Ll!lti l'ile INultl'G-D Itegulato y itestsiction 4-Other (Explain) 01611
, v li-Opci.itor Tsaining1 License Examination I .Aihniniusative 5 t, G Opesational I esos (l!aplain) Exlut,it I . Same Souice l'8/17) 11 Othe liimpi.ain)
O
DOCKET NO. 50-271 UNIT Vermont Yankee ,
q, DATE 791012 c COI!PLETED BY R. M. Sjogren r L o TELEP110NE (617) 366-9011 X2281 '--
SAFETY 1 ELATED !!AI.VfENANCE g
- g OF LER OR UUTAGE HALFUNC' LION MAINTENANCE NUlBER CAUSE !!LSULi CORRECTIVE ACTION EQUIP!ENT Main Steam line instrument Corrective NA Worn packing Leakage Replaced packing root valve MR79-342 RilR pump P-10-1A Corrective NA Worn seal Leakage Replaced mechanical seal MR79-402 RCIC steam valve V-13-131 Corrective NA Worn valve seat & Leakage Lapped sent & disc, MR79-506 disc repacked valve "B" SBGT train Corrective LER 79-22/3L Depleted charcoal Failed freon test Replaced filter MR79-701 filter Emergency diesel generator Corrective NA Relay out of Generator breaker Recalibrated relay B syncronization check MR79-725 calibration closing slightly out relay of syncronization Torus level transmitters Corrective LER 79-24/3L Loose fittings Erroneous readings rightened fittings and LT-16A-38A6B PIR79-729 refilled reference legs "B" RilR service water pump Corrective NA Clogged Strainer liigh dif ferential Cleaned Strainer suction strainer 'fR79-739 pressure Containment air monitor :orrec t ive NA Accumulation of Valve failed Icak I)isassembled and cleaned valve VG-76B 'IR79-751 dirt test valve Primary Containment :orrective LER Accumulation of Valve failed leak l)isassembled and c1 caned atmospheric control valve IR79-773 forthcoming dirt test valve V16-20-20 O
DOCKET NO. 50-271 UNIT Vermont Yankee DATE 791012 COMPLETED BY R. M. Siogren TELEPHONE (617) 366-9011 X2281 REPORT MONTH September 1979 SU'elARY OF OPERATING EXPERIENCES Highlights Vermont Yankee operated at 61.5% of rated thermal power for the month of September, 1979. Gross electrical generation for the month was 228,616 MWHe, or 58.8% of design electrical capacity.
Ooerations Su:maary The following is a chronological description of plant operations in-cluding other pertinent items of interest for the month:
9-1 At the beginning of the report period, the plant was operating at 89% of rated thermal power, and in the process of coastdown
. for the refueling outage.
9-21 Power reduction for the scheduled refueling outage coc=enced at 2100 hours0.0243 days <br />0.583 hours <br />0.00347 weeks <br />7.9905e-4 months <br />.
9-22 At 0113 hours0.00131 days <br />0.0314 hours <br />1.868386e-4 weeks <br />4.29965e-5 months <br />, the generator was removed from the grid, with the reactor manually scrammed at 0825 hours0.00955 days <br />0.229 hours <br />0.00136 weeks <br />3.139125e-4 months <br />.
9-30 At the conclusion of this leport period, the plant was in the shutdown mode as the refueling outage continued.
_s 9
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CORRECTION TO OPERATING DATA REPORTED AUGUFT 1979 DOCKET NO. 50-271 DATE 791012 COMPLETED BY R. M. Sjogren TELEPHONE (617) 366-9011 X2281 Unit Name Vermont Yankee Line No. This Month Yr. to Date Cumulative
- 16. Gross Thermal Energy Generated (M'n'H) 889,630.5 8,052,064 66,438,882
- 20. Unit Availability Factor 86.4 91.0 77.9
- 21. Unit Capacity Factor (Using MDC Net) 71.5 86.9 68.0
- 22. Unit Capacity Factor (Using DER Net) 70.1 85.2 66.7 ,
d % ,
I