说明分析讲稿1bcfc

BAFirstDOC.PY017LBK003DDS045GNCHAPTER3PK817LBK003GDS045GNA:B:√C:Issued 国 综 GEDI省电ThisisthepropertyofGEDI.Itmustnotbeused,reproduced,transmittedordisclosedwithoutthepriorwrittenpermissionofGEDI.本文件之属于省电力。未获我院，任何人不得擅自使用、、传递或该文件。ModifyAFIRSTB1.1REFERENCELING’AOnuclearpowerstationunit1.3FRENCH—French—EDFSafety2..—Referenceengineeringrulesand*LOSSMADEBYRADIATIONPOLLUTIONINTHESYSTEM4.3EMERGENCYPOWERSUPPLYThe2chargersaredby2different380V STS（standardtechnicalspecification）forBatterychargersSTS（standardtechnicalspecification）forbatterySTS（standardtechnicalspecification）forbatteriesdischargetest—pipe—turbinemissileslow ne—safeshutdownline——active———noxiousvapourorgas(otherthanthosecausedby—liquids(escafrombreaksinthepi—ionising—explosions:fromin-—specialprecautionsagainstpipenoxiousvapourorgas(otherthanthosecausedby 0LBKsystemareinstalledatthedemineralizationnt(YA)buildingsupplycontrolpowertoYA/YB/ZC/VA/DY/LYbuilding.DESCRIPTIONOFTHEDCPOWERTheequipmentsfeedtheDCbusbarcompriseofabatteryandtwoForthe0LBKswitchboard,thebusbarhastwoisolators,isolator309JSdividesthebusbarintotwoseparateparts,theotherone109JSisusedtobreaktheconnectionfrombattery001BTandcharger001RDtotheload.Becausethetwochargersaretypeofhigh-frequencyswitch,theycanoperateinparallelconnectionnormallyandthecapacityofeverychargercansatisfychargingthebatteryandsupplyingtheload.For0LBKswitchboard,twochargersareisolatedfromitsownbusbarseparaybybreakers107JAand307JA.Thetwobreakersareunattached,i.e.theycanoperateinon/offaccordingtothefollowingoperatingmode:“automatic”001RDand002RDarenormalandusedtochargingthebatteryandsupplyingtheload.Thetwobreakers107JAand307JAareclosed.001RDisnormalandusedtochargingthebatteryandsupplyingtheload,002RDisThe107JAbreakerisclosed,the307JAbreakeris001RDisshutdown,002RDisnormalandusedtochargingthebatteryandsupplyingtheThe107JAbreakerisopened,the307JAbreakeris“boost”‐001RDisusedboostingcharge.002RDsupplytheload.Thetwobreakers107and307areclosed.Theisolator109JSisopened.Eachchargerisabletoprovideaumcurrentthatloadsneed,keepsthebatteryoutputvoltageandsatisfiestheneedofbatteryrecharging.Batteriesdonotfeedloadundernormaloperation,exceptloadsuptoitspeakWhenthebatteriesprovidepoweronitsown,forexample,thechargeroritspowersupplyfails,itsemergencydischargingtimemustbelongerthanonehouranditsoutputvoltagemusthigherthan93.6Vwithintheemergencydischargingtime.Chargers001RDand002RDarefedbytwodifferent380Vswitchboardswhichfedbytwodifferent6.6kVsiteswitchboards.Switchboardsof0LBKsystemarefedbythebatteriesandchargerswithoutgoingAlayoutunitinswitchboardisforbatterydischargingEarthfaultsofbusbarsandfeedersaredetectedandalarmedbytheinsulationmonitorconnectedtobusbarBandC.Oneswitchboardoutgoingunitisfortheannualbatterydischargetestequipment.Short-circuitfailuresareeliminatedselectively. SHAKETheequipmentisnotdesignedtobeearthquakeTheequipmentconstructionrulesshallbeobservedinorderto nelBatteriesareventedlead-acidspray-prooftype.Thecellconsistsoftubularpositivetes,pastednegativetes,separatorswithspaces,transparentsticcontainerandnon-transparentcover.Thecellisprovidedwithacidspray-prooffunnelplug.Althoughtherewillbesomegasevolvedduringtheoperation,thereisnoacidsprayescaoutofthecellssoastoprotecttheequipmentintheroomfromcorrosionandimprovetheoperationcondition.Withthefunnelplug,thepossibleexplosionduetothesparksorflameoutsidethecellcanbeeliminated,soit’ssafeinoperation.Thebatterystandsareconstructedofsteelprotectedbyappropriatestainlesstreatment.Therackscanbefixedonthecementbasegroundwithexpansionboltsorbuilt-inanchorbolts.ChargerandDistributionChargeranddistributionboardareadaptedtoreceiveallcablesthroughtheEachchargerismountedinacubiclewhich,togetherwiththedistributionboard,formsacompletesuiteofpanels.Thecubiclesareofanassembledsheetste