ML17250A562
| ML17250A562 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 03/17/1979 |
| From: | SCHULER T R, SNOW B A ROCHESTER GAS & ELECTRIC CORP. |
| To: | |
| Shared Package | |
| ML17250A560 | List: |
| References | |
| RSSP-1.5, NUDOCS 8009160562 | |
| Download: ML17250A562 (8) | |
Text
ROC::"S::-~.G;D:-:-CHICC"Z"-aa:IONG:tHA,S:.~::IONCONSOL~~CO?'~'iZGD~%S~~etllllee~~~OCUL&'tORSSP-1.5'7'0.VALVEINTERLOCKVERIFICATION-FEEDNATERISOLATIONT:-(."CC.4L~=a~=;i."-ORC3/12/792-ll-7'.i%i')ACi""-CRY
,~,,$il~l.~f RSSP-1.5:1RSSP-1.5VALVEINTERLOCKVERIFICATION"FEEDWATERISOLATION1.0PURPOSE:Todescribethestepsnecessarytoperformthevalveinterlockverificationforfeedwaterisolation.2.0TESTREQUIREHENTS:2.1Toverifyinterlocksassociatedwithhighsteamgeneratorlevels,systemTavg..andturbinetrip.3.03.1
REFERENCE:
FoxboroInstrumentBlockDiagramsBD18andBD194.04~1INITIALCONDITIONS:PlantineitherhotorcoldshutdownPRECAUTIONS:.5.1Ifsecondarysidecondensatesystemispressurized,theguardvalvesbeforetheSteamGeneratorflowcontrol,mainandbypass(I,oopA6B)valvesmustbemaintainedclosed.5.2Iftestisconductedduringhotshutdown,theSteamDumpProportionalUnit(steamdumpcabinet)mustbeplacedonmanual.5.3Iftestisperformedwhenplantmaintenanceisbeingperformedverifythatconductanceoftestwillnotconflictwithmaintenanceworkorcomprimisesafetyofmaintenancepeople.5.4Ifplantisinhotshutdown,anyfeedwatermakeuptosteamgeneratorsistobesuppliedbyAuxiliaryFeedwatersystem.6.0INSTRUCTIONS:6.1PriortocheckingF.W.valveinterlocks,checkthevalvesforoperabilityasfollows:6.1.1VerifythatHainFeedwatervalveshavebeenmanuallycrankedtotheneutralposition.6.1.2Verifythatairsupplyisturnedontovalvepositioner.6.1.3VerifyfeedwaterisolationresetatControlBoard.6.2-EnsurethatthefollowingRCsystemlevelcontrolbistablesareenergized.
RSSP-1.5:26.2.16.2.26.2.36.2.46.2.56.2.6LC-461A/Bbistable(LoopAsteamgenerator)LC-462B/Cbistable(LoopAsteamgenerator)LC-463C/Dbistable(LoopAsteamgenerator)LC-471A/Bbistable(LoopBsteamgenerator)LC-472B/Cbistable(LoopBsteamgenerator)LC-473C/Dbistable(LoopBsteamgenerator)Note:Tobeenergized,thewaterlevelinS/G'smustbelessthan70%.Iflevelishigh(greater70'/)thanaDCcurrentgeneratormustbeutilizedatthetestjacksoftheconcernedchannelsandasimulatedinputinjected.6.3PlaceC.B.Hand-automatictransferstationforthefollowingmainfeedwatercontrollersonmanual.6.3.16.3.26.4HC-466Loop"A"LCVHC-476I,oop"B"LCVPlaceCBHand-automatictransferstationforthefollowingby-passControllersonmanual.6.4.1HC-480Loop"A"by-pass'6.4..2..-HC-.481.Loop"B"by-pass6.5Strokethefollowingmainandby-passfeedwatervalvesforLoopA6Bthroughfullcycleandthenleaveinopenposition.Note:Valveactionshouldbeverifiedbyvisualobservation.6.5.16.5.26.5.36.5.4FCV-466LoopAFCV-480FCV-476LoopBFCV-481cycledleftopen6.6ToverifyactionHileveloverride,establisha2/3logicbyplacingthefollowingbistablesinthetripmode(provingswitchinprotectionracks).6.6.16.6.26.6.36.6.4LC-461ALoopALC-462BLC-471ALoopBLC-472Btripped6.7VerifyvisuallythatallFCV'shaveautomaticallystrokedtotheirclosedpositions.6'.1FCV-466FCV-480FCV-476FCV-481closedNOTE:Verificationofremaininglogiccombinationneednotbedoneatthis.timeasasubsequenttest(atsafeguardtestpanel)willproveoutthiscapability.
RSSP-1.5:36.8Returnthebistableprovingswitchesforthefollowingbistablesto'ormalpositionandverifythatthevalvesopenautomatically.Resetby-passvalvesifnecessary.valveopen6.8.1LC-461A1FCV-4666.8.2LC-462B)FCV-4806.8.3LC"471AFCV-4766.8.4LC-472B)FCV-4816.96.106.11DisconnectfieldinputterminalstotemperaturecontrolbistabletoTC401F(SteamDumprackatli.C.B.)ConnectDCcurrentgeneratortoinputterminalsofTC401FbistableandinjectasignalequivalenttothatwhichcorrespondstoaTavg.temperaturegreaterthan554F(approx.556F)PlacethefollowingCBtfainF.W.Hand-automatictransferstationsintheautopositionandverifythatthevalvesareopen:6.11.1HC-466LoopALCV6.11.2HC-476LoopALCV6.12By-passvalvecontrollerswereleftonhandcontrolfrompreviousstep.Verifythatthefollowingvalvesareopen:6.12.1LCV-480LoopA6.12.2LCV-481LoopB6.136.146.14.16.14.26.14.36.14.4Decreaseinputsignal,toTC401FbistableequivalenttothatwhichcorrespondstoaTavg.temperaturelessthan554F(approx.552F)Verifythatthefollowingvalveshavestrokedautomaticallytotheclosedposition.FCV-466LoopAFCV-480FCV-476LoopBFCV-4816.156.16Simulateturbineoperationconditionbyblockingopentwoofthe63ASTautostopoilpressuremercoids..Verifythatthefollowingvalveshavestrokedautomaticallytotheiropenposition:
RSSP"1.5:46.17.16.17.26.17.36.17.4FCV-466I,oopAFCV-480FCV-476I,oopBFCV-4816.18Unblockthetwo63AST.mercoidswhichwereblockedinstep6.16above.6.196.19.16.19.26.19.36.19.4Verifythatthefollowingvalveshavestrokedautomaticallytotheirclosedpositions:LCV-466LoopALCV-480LCV-476LoopBLCV-4816.206.216.21.16.21.26.21.36.21.46.22Increaseinputto,temperaturecontrolbistableTC401FtothatwhichcorresgondstoaTavg.temperaturegreaterthan554F0(approx.556F)Verfiythatthefollowingvalveshavestrokedautomaticallytotheiropenposition:LCV-466LoopAI,CV-480LCV-476I,oopBLCV-481JogswitchoncontrollersHC-466andHC-476fromAutotomanualseveraltimestodecreasecontrolleroutputto0%andverifythatthefollowingvalvesremainintheopenposition:(ObservesmallindicatorsabovecontrollersforQ6.22.16.22.26.22.3FCV-466FCV-476FCV-466)FCV-467ValveopenValveopenAuto6.23Vithby-passvalvecontrollerHC-481andHC-480onmanualposition,adjustoutputto0/andverifythefollowingvalvesrem'ainintheopenposition:6.23.16.23.2FCV-480FCV-481ValveopenValveopen6.24PlacethefollowingHand-automatictransfercontrollerstothemanualposition(HCB)andreducemanualcontrolsettingtozero.6.24.16.24.2HC-466LoopA,;HC-476LoopBmanualpositionmanualposition6.25Verifythatthefollowingvalveshaveautomaticallystrokedtotheirclosedposition:
RSSP-1.5:56.25.1FCV-466LoopA6.25.2FCV-4806.25.3-FCV-476LoopB6.25.4FCV-781Valveclosed6.26RemoveDCcurrentgeneratorfromtemperaturecontrolbistableTC401Fandreconnectfieldwiringtoinputterminals;wireconnected.6.27IfDCcurrentgeneratorshadbeenconnectedtotestjacksatsteamgeneratorlevelchannelsremovefromservicetorestorechanneltonormal.6.27.16.27.26.27.36.27.46.27.56.27.6LC-461LC-462LC-463LC-471LC-472LC-473restoredrestoredrestoredrestoredrestoredrestoredtonormaltonormaltonormaltonormaltonormaltonormal6.28Realignsystemandvalvesasrequiredforsubsequentoperation.CO>iPLETEDBY:DATECOHPLETED:SHIFTFOREHAN:RESULTS6TESTREVIEW:DATE: