ML063340006

11/29/2006 SNC Farley Meeting Slides

ML063340006
Person / Time
Site:	Farley
Issue date:	11/29/2006
From:	Division of Nuclear Materials Safety II
To:	Southern Nuclear Operating Co
References
Download: ML063340006 (72)

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1 1 SNC Farley Units 1 & 2 SNC Farley Units 1 & 2 Status Status November 29, 2006 November 29, 2006NRC Region II Status MeetingNRC Region II Status Meeting 2 2 Agenda AgendaIntroduction IntroductionFarley Project Overview Farley Project Overview

--Lewis Sumner Lewis SumnerFarley Site Status Farley Site Status

--Randy JohnsonRandy JohnsonLicensing Status Licensing Status

--Doug McKinney Doug McKinneyProblem Identification and Resolution Problem Identification and Resolution

--Paul Hayes Paul HayesMajor Focus AreasMajor Focus Areas

--Sonny Sonny Bargeron BargeronOpen Discussion Open Discussion

--ALL ALL 3 3 Farley Project Overview Farley Project Overview Lewis Sumner Lewis Sumner 4 4 FNP Unit 1 FNP Unit 1 Average Daily Power Level Average Daily Power Level November 17, 2004 November 17, 2004

--October 31, 2006 October 31, 2006 0100200300 400500600 700800900Nov-04Dec-04Jan-05Feb-05Mar-05Apr-05May-05Jun-05Jul-05Aug-05Sep-05Oct-05Nov-05Dec-05Jan-06Feb-06Mar-06Apr-06May-06Jun-06Jul-06Aug-06Sep-06Oct-06Equip HU 5 5 FNP Unit 2 FNP Unit 2 Average Daily Power Level Average Daily Power Level April 14, 2004 April 14, 2004

--October 31, 2006 October 31, 2006 0100 200 300 400500600 700 800900Apr-04May-04Jun-04Jul-04Aug-04Sep-04Oct-04Nov-04Dec-04Jan-05Feb-05Mar-05Apr-05May-05Jun-05Jul-05Aug-05Sep-05Oct-05Nov-05Dec-05Jan-06Feb-06Mar-06Apr-06May-06Jun-06Jul-06Aug-06Sep-06Oct-06Equipment HU 6 6 INPO Index INPO IndexINPO Performance Indicator Index 65 70 75 80 85 90 95100Apr05May05Jun05Jul05Aug05Sep05Oct05Nov05Dec05Jan06Feb06Mar06Apr06May06Jun06Jul06Aug06Sep06Monthly Index ValuesPercentUnit 1 - Index ValueUnit 2 - Index ValuePlant - Index ValueYear End Target 7 7Forced Loss Rate0.01.02.03.0 4.05.06.0 7.08.09.010.011.012.0Apr05May05Jun05Jul05Aug05Sep05Oct05Nov05Dec05Jan06Feb06Mar06Apr06May06Jun06Jul06Aug06Sep06Cycle Based Averages (18 or 24 Months)PercentINPO 100% Performance LevelUnit 1 - Monthly Cycle AvgUnit 2 - Monthly Cycle AvgYear End Goal LevelAction Level 8 8Industrial Safety Accident Rate - Plant Value0.00.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0Apr05May05Jun05Jul05Aug05Sep05Oct05Nov05Dec05Jan06Feb06Mar06Apr06May06Jun06Jul06Aug06Sep06Cycle Based Averages (18 or 24 Months)Industrial Safety Accident Rate per 200,000 Hours WorkedINPO 100% Performance LevelIndustrial Safety Accident Rate (Cycle Based)Action Level 9 9NRC PI - Safety System Functional FailuresGreen 5 0 1 2 3 4 5 6 7 8Safety System Functional FailuresApr-05May-05Jun-05Jul-05Aug-05Sep-05Oct-05Nov-05Dec-05Jan-06Feb-06Mar-06Apr-06May-06Jun-06Jul-06Aug-06Sep-0612 Month Rolling SumWhite > 5Green 5Unit 1 DataUnit 2 DataAction LevelNote: Yellow/Red No Threshold 10 10NRC PI - Mitigating System Performance Index, Cooling Water SystemGreen 1.0E-06White > 1.0E-06 OR PLE = YesYellow > 1.0E-05Red > 1.0E-041.0E-071.0E-061.0E-051.0E-04 1.0E-03Mitigating System Performance Index (MSPI) ValueApr-05May-05Jun-05Jul-05Aug-05Sep-05Oct-05Nov-05Dec-05Jan-06Feb-06Mar-06Apr-06May-06Jun-06Jul-06Aug-06Sep-06Rolling 36 Month ValuesGreen 1.0E-06White > 1.0E-06 OR PLE = YesYellow > 1.0E-05Red > 1.0E-04Unit 1 DataUnit 2 DataAction Level 11 11NRC PI - Reactor Coolant System Specific ActivityWhite > 50%Green 50%0%10%20%30%40%50%60%70%80%90%100%% of Technical Specifications LimitsApr-05May-05Jun-05Jul-05Aug-05Sep-05Oct-05Nov-05Dec-05Jan-06Feb-06Mar-06Apr-06May-06Jun-06Jul-06Aug-06Sep-06Monthly MaximumYellow >100%White > 50%Green 50%Unit 1 DataUnit 2 DataAction LevelNote: Red No Threshold 12 12NRC PI - Emergency Response Organization Drill/Exercise PerformanceGreen 90%White <90%Yellow <70%50%55%60%

65%70%75%80%85%90%95%100%Apr-05May-05Jun-05Jul-05Aug-05Sep-05Oct-05Nov-05Dec-05Jan-06Feb-06Mar-06Apr-06May-06Jun-06Jul-06Aug-06Sep-0624 Month Rolling Values% Of OpportunitiesGreen 90%White <90%Yellow <70%Plant DataAction LevelNote: Red No Threshold 13 13NRC PI - Alert and Notification ReliabilityGreen 94%White <94%90%91%92%93%94%95%96%97%98%99%100%Apr-05May-05Jun-05Jul-05Aug-05Sep-05Oct-05Nov-05Dec-05Jan-06Feb-06Mar-06Apr-06May-06Jun-06Jul-06Aug-06Sep-0612 Month Rolling Values% Of OpportunitiesGreen 94%White <94%Yellow <90%Plant DataAction LevelNote: Red No Threshold 14 14Collective Radiation Exposure - Unit Values 0 20 40 60 80100 120140160180200Apr05May05Jun05Jul05Aug05Sep05Oct05Nov05Dec05Jan06Feb06Mar06Apr06May06Jun06Jul06Aug06Sep0612 Month Normalized Unit Values*RemINPO 100% Performance LevelUnit 1 - ActualsUnit 2 - ActualsAction Level 15 15NRC PI - PA Security Equipment Performance IndexWhite > 0.08Green 0.080.000.02 0.04 0.060.080.10 0.12 0.14 0.16Index ValueApr-05May-05Jun-05Jul-05Aug-05Sep-05Oct-05Nov-05Dec-05Jan-06Feb-06Mar-06Apr-06May-06Jun-06Jul-06Aug-06Sep-0612 Months Rolling AveragesWhite > 0.08Green 0.08Plant DataAction LevelNote: Yellow/Red No Threshold 16 16NRC PI - FFD/Personnel Reliability ProgramWhite > 2Green 2 0 1 2 3 4 5Reportable Events Caused ByProgrammatic FailuresApr-05May-05Jun-05Jul-05Aug-05Sep-05Oct-05Nov-05Dec-05Jan-06Feb-06Mar-06Apr-06May-06Jun-06Jul-06Aug-06Sep-0612 Months Rolling SumYellow > 5White > 2Green 2Plant DataAction LevelNote: Red No Threshold 17 17 Engineering Realignment 2006 Engineering Realignment 2006 18 18 Organizational Chart: Technical Organizational Chart: Technical Support SupportTechnical SupportEngineering FuelsLicensing 19 19 Organizational Chart:

Organizational Chart:

Licensing LicensingNuclear Licensing Vogtle LicensingFarley LicensingHatch LicensingPRA ServicesLicense Renewal 20 20 Organizational Chart:

Organizational Chart:

Engineering EngineeringEngineering VPPlant SupportEngin. ServicesEngin. Admin. Serv.Config. Mgmt.Common QA Prog.

21 21 Organizational Chart: Plant Support Organizational Chart: Plant SupportPlant Suppt. Mgr.Farley SupportHatch SupportVogtle SupportDesign Change Team RER Team Elec./I & C RER TeamMech/CivilProj/Planning TeamDesign Change Team RER Team Elec./I & C RER TeamMech/CivilProj/Planning TeamDesign Change Team RER Team Elec./I & C RER TeamMech/CivilProj/Planning Team 22 22 Organizational Chart:

Organizational Chart:

Configuration Configuration Management ManagementConfig. ManagerDesign. Config. -DCP /Design. Config. As Found Minor Mods. Hatch E FinFarley E FinVogtle E FinAdmin. Asst.

23 23 Organizational Chart:

Organizational Chart:

Engineering Engineering Services ServicesEngin. Serv. Mgr.

M & ISEquip. Reliab.

Engin. Prog. Mgr.

• Seismic*Stress

• Fire Protection

• Dry Cask Storage

• Security*Environmental Qualification 24 24 Organizational Chart:

Organizational Chart:

Engineering Engineering Programs ProgramsEngin. Prog. Mgr.

Stress Fire Protection Dry Cask Storage SecuritySeismic/Environ. Qualif. Admin. Asst.

25 25 Organizational Chart:

Organizational Chart:

Equipment Equipment Reliability ReliabilityEquip. Reliab. Mgr.Components -Mech. Components -Mech. Equipment Reliab.Components -Elec.Admin. Asst.Turbine Gen.

26 26Farley Project Overview:Farley Project Overview:

2006 TIP Award 2006 TIP Award 27 27 28 28 Pandemic Plans Pandemic Plans Human Flu PandemicThreats to Business ContinuityAvian FluH5N1 Avian Flu H5N1Panic or Pandemic ?

29 29What are we trying to do here?What are we trying to do here?Agree that our SNC focus is to Agree that our SNC focus is to "keep nuclear units on"keep nuclear units on

--line"line"Acknowledge the uncertainty of a Acknowledge the uncertainty of a widespread pandemicwidespread pandemicIn response, In response, create a flexible plan create a flexible plan that accommodates an uncertain that accommodates an uncertain eventeventWhen the pandemic does happen, When the pandemic does happen, Focus resources where they will Focus resources where they will do the most good; with frugalitydo the most good; with frugalityPut forces and resources "in reserve" Put forces and resources "in reserve" as much you canas much you canSNC Decision MatrixPandemic Progression -Example -SRO Decision CycleLowGuardedElevatedHighSevereSNC Pandemic Threat Level Gradually ProgressesReaches SNC ThresholdReaches SNC ThresholdPlan ahead:*Notify SRO's*Vaccinate SRO's Implement the plan:*Notify SRO's*Vaccinate SRO's Plan ahead:*Sequester SRO's*Establish site quartersImplement the plan:*Sequester SRO's*Establish site quartersPlan ahead:*Unit shutdown*Consolidate SRO's at site*Prioritize unit shutdowns*Consider outside assistanceImplement initial preparations:*Identify SRO's*Acquire vaccination meds *Buy hand sanitizer*Double clean restrooms Pandemic Plans Pandemic Plans 30 30SNC's Mission in the face of a pandemic threatTo continue the uninterrupted maximum generation and delivery ofelectrical energy from the nuclear reactors at all three sites,considering mandated minimal staffing levels that are on-hand for an extended period of time - and that there are no allowable compromise of the public health, public safety or violations of then-in-effect regulations in doing so.Implementation The specified task would be to keep electricity flowing uninterrupted at maximum loads for all six nuclear units.*Implied in that is the suggested establishment of minimum manningdocuments for not only numbers of employees present for duty but minimums assigned in several duty functions. *Falling below these pre-established minimums at any location might necessitate voluntary derate or even shutdown of selected nuclear units,in a logical, stepwise manner. *Likewise, there may be a hierarchy of necessary plant services and necessary Corporate services beyond which nuclear unit operations would not be prudent, regulatorily allowable or even possible SNC Mission and Implementation Statement in the event of a pandemic Pandemic Plans Pandemic Plans 31 31SNC Decision MatrixPandemic Progression -Gradual versus Rapid LowGuardedElevatedHighSevereImplement PlanImplement PlanImplement PlanImplement PlanImplement PlanImplement Plan LowPandemic explodesSNC Pandemic Threat Level Gradually ProgressesReaches SNC ThresholdReaches SNC ThresholdReaches SNC ThresholdReaches SNC ThresholdReaches SNC ThresholdReaches SNC ThresholdHighSevereImplement PlanImplement Plan Event-driven Decision Matrix--Example --

Pandemic Plans Pandemic Plans 32 32 Farley Site Status Farley Site Status Randy Johnson Randy Johnson 33 33 Positioned for the Future Positioned for the FutureBoth unit's steam generators replaced in 2000 & 2001Both unit's steam generators replaced in 2000 & 2001Completed construction and placed in service new mechanical drafCompleted construction and placed in service new mechanical draf t t cooling towers in 2003 & 2004cooling towers in 2003 & 2004Replaced both unit's reactor vessel heads in 2004 & 2005Replaced both unit's reactor vessel heads in 2004 & 2005Completed Dry Cask Storage facility and completed first campaignCompleted Dry Cask Storage facility and completed first campaign in 2005.in 2005.License renewal approvedLicense renewal approved

--Spring 2005. Unit 1Spring 2005. Unit 1

--2038. Unit 22038. Unit 2

--20412041New 20,000 sq. ft. Maintenance Training facility opened in summeNew 20,000 sq. ft. Maintenance Training facility opened in summe r r 2006.2006.In 2006, completed extensive repair effort on fire protection In 2006, completed extensive repair effort on fire protection impairments related to Kaowool & large penetration sealsimpairments related to Kaowool & large penetration seals 34 34 Licensing Status Licensing Status Doug McKinney Doug McKinney 35 35 Licensing Status Licensing Status1 LER in 2006 (MSIV failure to close) 1 LER in 2006 (MSIV failure to close)CDBI, ISFSI, EP, MSIV Special Inspection CDBI, ISFSI, EP, MSIV Special Inspection are completed NRC inspectionsare completed NRC inspectionsMSPI Verification, Initial Exam, Outage are MSPI Verification, Initial Exam, Outage are future NRC inspections future NRC inspectionsNRC approval requests NRC approval requests

--snubber relief snubber relief request, room cooler TS, SSPS TS, Weld request, room cooler TS, SSPS TS, Weld Overlay Alternative, 10 year ISI /IST, Overlay Alternative, 10 year ISI /IST, Personnel Access Hatch Personnel Access Hatch 36 36 Triennial Fire Inspection Actions Triennial Fire Inspection ActionsRe Re--validate safe shutdown analysis and validate safe shutdown analysis and develop database develop databaseManual operator actions review Manual operator actions reviewCircuit analysis reviewCircuit analysis reviewCommunications, emergency lights, Communications, emergency lights, diagnostic instruments diagnostic instrumentsComplete by end of 2007 Complete by end of 2007Next Farley Triennial Fire Audit 3/2008 Next Farley Triennial Fire Audit 3/2008 37 37 Problem Identification Problem Identification and Resolution and Resolution Paul Hayes Paul Hayes 38 38 Problem Identification & Resolution Problem Identification & Resolution Problems Identified Through Problems Identified Through

--Corrective Action Program Corrective Action ProgramSystem Health Reports System Health ReportsEquipment Reliability Board (ERB)

Equipment Reliability Board (ERB)Major Issues List Major Issues ListLong Range Plans Long Range PlansLife Cycle Plan Life Cycle Plan 39 39 Life Cycle Plan Life Cycle PlanProvides overview of plant projects Provides overview of plant projectsIntegrates planned improvements and Integrates planned improvements and outage durations outage durationsEnsure budget review and assessment Ensure budget review and assessment against other plant needs against other plant needs 40 40 Major Issue ListMajor Issue List30 Issues 30 Issues Directs Problem Resolution Focus for Directs Problem Resolution Focus for Primarily Short/Medium Primarily Short/Medium

--Term Issues Term IssuesMonthly Meetings Ensure Management Monthly Meetings Ensure Management Visibility Visibility 41 41 Focus Areas Focus Areas HHSI HHSI4KV Breakers 4KV BreakersECCS Sump ECCS SumpService Water IssuesService Water IssuesAlloy 600 Alloy 600Plant Computer Replacement Plant Computer ReplacementMSIVs MSIVsMain Steam Line Vibration Main Steam Line Vibration 42 42 HHSI HHSI Pump Casings Pump CasingsReplacing all 6 casings. First replacement planned for March 200Replacing all 6 casings. First replacement planned for March 200 7.7.Charging Pump GassingCharging Pump GassingSignificant Event and LER 12/05Significant Event and LER 12/05Attributed to large swing in VCT pressureAttributed to large swing in VCT pressureOps procedures enhance to monitor for VCT pressure fluctuationsOps procedures enhance to monitor for VCT pressure fluctuationsParticipating in WOG program to study gas void formation/behavioParticipating in WOG program to study gas void formation/behavio r rINPO assist visit investigated events and made recommendations INPO assist visit investigated events and made recommendations regarding automatic pressure control, checking system for additiregarding automatic pressure control, checking system for additional onal high points, adding charging pump discharge vents, etchigh points, adding charging pump discharge vents, etcRestoration of automatic VCT pressure control under investigatioRestoration of automatic VCT pressure control under investigatio n.n.

43 434 KV Breakers4 KV BreakersExpediting replacement with C Expediting replacement with C

--H. H. Unit 1 & 2 SW breaker design issued and Unit 1 & 2 SW breaker design issued and breakers procured.

breakers procured.Implementation begins in Dec 06 Implementation begins in Dec 06Other Safety Related bus breaker DCP Other Safety Related bus breaker DCP preparation in preparation in

--progress.progress.P.O. for additional breakers to be issued in P.O. for additional breakers to be issued in Dec 06 Dec 06 44 44ECCS SumpECCS SumpModifications scheduled for U2R18 and Modifications scheduled for U2R18 and U1R20 (2007)

U1R20 (2007)Continue to respond to emerging criteria Continue to respond to emerging criteria such as chemical effects such as chemical effects 45 45 Service Water IssuesService Water IssuesReplacement of all 10 SW pumps starting Replacement of all 10 SW pumps starting with 2E.with 2E.No reliance on booster pumps for lube and No reliance on booster pumps for lube and cooling.cooling.

46 46 Alloy 600 Alloy 600Inspection planned for U2R18 (Spring 07)

Inspection planned for U2R18 (Spring 07)Weld overlays planned for U1R20 (Fall 07)

Weld overlays planned for U1R20 (Fall 07)Unit 2 overlays planned for 2010 Unit 2 overlays planned for 2010 47 47 Plant Computer Replacement Plant Computer ReplacementReplacement completed for Unit 1 and the Replacement completed for Unit 1 and the simulator simulatorUnit 2 complete by February 2007 Unit 2 complete by February 2007 48 48 MSIVs MSIVsComponent refurbishment and Component refurbishment and enhancements scheduled for upcoming enhancements scheduled for upcoming outages outagesComputational Fluid Dynamics (CFD)

Computational Fluid Dynamics (CFD) assessment to be performed by Weir assessment to be performed by Weir Valve. Should be complete in early 2007.

Valve. Should be complete in early 2007.

49 49Main Steam Line VibrationMain Steam Line VibrationInitiated Engineering Study to assess Initiated Engineering Study to assess recent OE and technology to determine if recent OE and technology to determine if improved techniques available.

improved techniques available.

50 50 Major Focus Areas Major Focus Areas Sonny Sonny Bargeron Bargeron 51 51 2007 Overview 2007 OverviewSpring and Fall outage Spring and Fall outageINPO Non INPO Non--Operations Accreditation Operations Accreditation Renewal Renewal INPO Evaluation INPO Evaluation LO Initial Training Exams LO Initial Training ExamsMSPI Margin RecoveryMSPI Margin Recovery 52 52 Reactor Coolant Pu mp Inspections:

Reactor Coolant Pu mp Inspections:

• • 18 month motor inspection on "A" & "B"18 month motor inspection on "A" & "B"

• • Shaft cracking UT Inspection on all pumpsShaft cracking UT Inspection on all pumps

• • Seal inspection on "B"Seal inspection on "B"

• • 10 10--year motor changeyear motor change

--out on "Cout on "CAlloy 600 Inspections:Alloy 600 Inspections:

• • UT of 4 UT of 4 PressurizerPressurizernozzlesnozzlesUnit 2 Spring Outage PlansUnit 2 Spring Outage Plans Outage Plans Outage Plans 53 53Unit 2 Spring Outage PlansUnit 2 Spring Outage PlansContainment Sump Screen Modification Containment Sump Screen ModificationSecondary Secondary--side Inspections of all Steam side Inspections of all Steam Generators including Upper Internals and Generators including Upper Internals and Feedring FeedringInspection and Refurbishment of all 6 Main Steam Inspection and Refurbishment of all 6 Main Steam Isolation Valves Isolation ValvesMain Power Transformer Replacement (#1 & #3)

Main Power Transformer Replacement (#1 & #3)

Outage Plans Outage Plans 54 54Unit 1 Fall Outage PlansUnit 1 Fall Outage Plans 10 year Reactor Vessel ISI 10 year Reactor Vessel ISIRx vessel inspectionRx vessel inspectionRCS loop to vessel alloy 600 weld UT ( HL & CL)RCS loop to vessel alloy 600 weld UT ( HL & CL)Rx Vessel bottom mounted Rx Vessel bottom mounted incore incorepenetration weld UT (alloy penetration weld UT (alloy 600)600)Pressurizer Pressurizer Alloy 600 weld mitigation Alloy 600 weld mitigationSurge line Surge line Spray lineSpray line3 safety lines3 safety lines Outage Plans Outage Plans 55 55Unit 1 Fall Outage PlansUnit 1 Fall Outage PlansContainment Sump modification Containment Sump modificationReplace two Main Power Transformers Replace two Main Power TransformersHigh Pressure Turbine Rotor Out inspection with a High Pressure Turbine Rotor Out inspection with a Rotor SwapRotor SwapSecondary Secondary--side Inspections of all Steam Generators side Inspections of all Steam Generators including Upper Internals and including Upper Internals and Feedring FeedringMSIV inspection / refurbishmentMSIV inspection / refurbishment Outage Plans Outage Plans 56 56 INPO Non INPO Non--Operations Operations Accreditation Renewal Accreditation RenewalEngineering, Maintenance & Chemistry Engineering, Maintenance & Chemistry pipelines pipelinesJanuary Evaluation January EvaluationMaintenance training facility Maintenance training facility Lab mockups Lab mockupsFlow loop simulator Flow loop simulatorPractical factor trainingPractical factor training Dynamic learning activities Dynamic learning activities 57 57 INPO Evaluation INPO EvaluationNext evaluation July 2007 Next evaluation July 2007 Accomplishments Accomplishments Focus on equipment replacements Focus on equipment replacements Material condition Material condition Workforce ownership Workforce ownership Conservative decision making Conservative decision making Low Low rad rad exposure exposure Timely resolution of equipment problems Timely resolution of equipment problems 58 58 INPO Evaluation INPO EvaluationImprovement Needed Improvement Needed Operations planning input Operations planning inputRecognition of error likely situationsRecognition of error likely situationsComponent Component mis mis--positioning positioning Lifting & Rigging Lifting & Rigging 59 59 LO Initial Training Exams LO Initial Training ExamsHL HL --30 (10/06 Exam) 30 (10/06 Exam)

--1 RO & 3 SRO1 RO & 3 SROHL HL --31 ( 10/07 Exam) 31 ( 10/07 Exam)

--7 RO & 7 SRO 7 RO & 7 SROHL HL --32 ( 10/08 Exam) 32 ( 10/08 Exam)

--8 RO & 8 SRO 8 RO & 8 SRO 60 60 MSPI Margin Recovery MSPI Margin RecoveryAll NRC indicators currentlyAll NRC indicators currently green green Two indicators with zero margin to white Two indicators with zero margin to white U1 CCW U1 CCW U2 MDAFW U2 MDAFW Developed action plan to recover margin Developed action plan to recover margin 61 61 U1 CCW Margin Recovery U1 CCW Margin Recovery1 failure to start in 2006 ( 1 failure to start in 2006 ( handswitch handswitch contacts)contacts)Fail to start or Run will result in white Fail to start or Run will result in white MSPI MSPIRecovery focused on Recovery focused on handswitch handswitch

& & breaker replacements breaker replacements 62 62U2 MDAFW Margin Recovery U2 MDAFW Margin Recovery 1 failure to run in 2004 due to oil leak 1 failure to run in 2004 due to oil leak requiring pump stop requiring pump stop1 fail to start will result in white MSPI 1 fail to start will result in white MSPIRecovery focused on breaker Recovery focused on breaker replacement, replacement, handswitch handswitch replacement, replacement, and gasket improvement and gasket improvement 63 63 Questions Questions 64 64 4kV Safety Related 4kV Safety Related Breakers Breakers Overview and Planning Overview and Planning 65 65 Most Recent Issues By Year Most Recent Issues By Year2000 (2 issues)2000 (2 issues)Dirty hand switch contactsDirty hand switch contactsunknownunknown2002 (1 issue)2002 (1 issue)Dirty hand switch contactsDirty hand switch contacts2004 (4 issues)2004 (4 issues)Dirty hand switch contactsDirty hand switch contactsFour bar linkage damagedFour bar linkage damaged2005 (3 issues)2005 (3 issues)Dirty hand switch contactsDirty hand switch contactsLoose stop boltLoose stop boltUnknownUnknown2006 (6 issues)2006 (6 issues)Charging motor (2 issues were outCharging motor (2 issues were out

--of of--spec spec --not failures) not failures)Guide rail notch too narrow (2Guide rail notch too narrow (2

--DL03)DL03)Roller/Trip latch gap out of spec high (Root Cause 1Roller/Trip latch gap out of spec high (Root Cause 1

--DL05)DL05)2 issues are in2 issues are in

--progress (1 progress (1

--DH03, 1DH03, 1--DK05)DK05) 66 66 Bus Arrangement Bus Arrangement TO230 KVSWITCHYARDUNIT 1MAINGENERATORUNIT AUXXFMRUNIT AUXFROM230 KVSWITCHYARDSTARTUPXFMR 1BSWITCHYARD230 KVFROMSTARTUPXFMR 1A 1A 1C 1E 1L 1F 1K 1HRIVERWATERRIVERWATERRIVERWATERSERVICEWATERCCW RHRAFWCTMT SPRAYCHARGINGCCWCTMT SPRAYAFW RHRCCWSERVICEWATERSERVICEWATERRIVERWATERRIVERWATERRCPRCPRCPSERVICEWATERChargingCharging 1G 1DSERVICEWATER 1J 1AXFMR 1B 1BESP Simplified Unit-1 4160vNormal Alignment(Unit 2 is similar) 67 67Most Recent Root Cause (1Most Recent Root Cause (1

--DL05)DL05)During a routine train swap, the breaker for the During a routine train swap, the breaker for the 1C SW pump was momentarily closed but 1C SW pump was momentarily closed but tripped free (open) tripped free (open)Root cause investigation attributed the failure to Root cause investigation attributed the failure to age and degradation of existing Allis age and degradation of existing Allis

--Chalmers Chalmers breakers which exhibited:

breakers which exhibited: Excessive gap distance between the latch roll and Excessive gap distance between the latch roll and the trip latch the trip latch Bending of the back plate.

This is the mounting Bending of the back plate.

This is the mounting plate for the stop bolt.

plate for the stop bolt.

68 68 Internal Operating Mechanism for Allis Internal Operating Mechanism for Allis Chalmers MA350 Chalmers MA350 69 69 Interim Action Plan Interim Action PlanAnalysis of "high duty" breakers on expedited Analysis of "high duty" breakers on expedited schedule schedule Complete with exception of 2 Complete with exception of 2

--DK04 (scheduled DK04 (scheduled 11/28) , 1 11/28) , 1

--DG02 (feeder breaker for 1R21)

DG02 (feeder breaker for 1R21)Extend analysis to include all safety related Extend analysis to include all safety related breakers breakersReplacement of SW breakers with new vacuum Replacement of SW breakers with new vacuum breakers breakersUse the "healthy" breakers from SW Use the "healthy" breakers from SW replacements in F & G (after PM performed) replacements in F & G (after PM performed)Expedite Expedite DCP's DCP's for Unit 1 & 2 F & G for Unit 1 & 2 F & G replacements replacements 70 70Long Term PlanLong Term PlanTotal replacement of existing obsolete Total replacement of existing obsolete Allis Allis--Chalmers MA350 breakers with Chalmers MA350 breakers with Cutler Hammer vacuum breakers Cutler Hammer vacuum breakersUnit 2 Unit 2 DCP'sDCP's(F &G) due by March, 2007(F &G) due by March, 2007 Unit 2 replacements complete by Spring 2007 Unit 2 replacements complete by Spring 2007Unit 1 Unit 1 DCP'sDCP's(F &G) due by June, 2007(F &G) due by June, 2007 Unit 1 replacements complete by end of 2007 Unit 1 replacements complete by end of 2007Increased tracking by serial number of Increased tracking by serial number of breaker locations and number of cycles breaker locations and number of cycles 71 71 Breaker Operation Breaker Operation Trip Free Closed SAT 72 72 Questions Questions