套管----种类及用途

NANJINGZHIDAELECTRICCO..LTDAug.12010BushingDevicethatenablesoneorseveralconductorstopassthroughapartitionsuchasawalloratank,andinsulatestheconductorsfromit;themeansofattachment(flangeorfixingdevice)tothepartitionformspartofthebushing.AppliedplaceTransformer、reactor、switch、circuitbreaker、transformer-cableterminal、throughawallorfloor。maininsulation1.Condenserbushing2.Un-Condenserbushinga)Oilimpregnatedpaper（OIP）condenserbushing★b)Epoxyresinimpregnatedpaper（RIP）condenserbushingc)Gas-insulatedbushingd)Liquid-filledbushinge)Castbushingf)CombinedinsulationbushingTYPEOFBUSHINGSBUSHINGFORGISHIGHCURRENTBUSHINGOtherbushingsOil-Oilbushing(RIP)Oil-SF6bushing(RIP)transformercableboxesGIStransformerOIP&RIPCONGDENSERTRANSFORMERBUSHINGtransformerTypeoftransformerbushingsOil-Airbushing(OIP)Oil-Oilbushing(RIP)Oil-SF6bushing(RIP)Thebushingisbuiltuparoundacentretubeonwhichthecondenserbodyiswound,Theupperinsulator,lowerinsulator,topchamberandmountingflangeareheldbetweentheendplatesbythecentretube.◆Oil-impregnatedpaperbushing.◆Porcelaininsulator.◆Highqualitytransformeroilfillsthespacebetweenthecondenserbodyandtheporcelain.◆Sealingisaccomplishedbyoil-resistantrubbergasketsingrooves.◆Themountingflangeisequippedwithatesttap.Thetopchamberisequippedwithanoillevelgauge.◆Thelowerendisshieldedbyaseparatedshield.◆Draw-lead（rod)orsolidrodconductorconnection.◆Thebushingismountedwithaninclinationofmaximum30degreefromthevertical.Oil-Airbushing(OIP)123456789102651、Outerterminal2、Topchamber3、Setofsprings4、Airsideporcelaininsulator5、Condenserbody6、Testtap7、Mountingflange8、CT-Pocket9、Oilsideporcelaininsulator10、EndshieldBushingstructureStructureofotherbrandbushingOil-AirtransformerbushingOIPcondensertransformerbushingsareusedforinsulatingandsupportpurposeontransformer.Thebushingitselfisacompletelysealedunitconsistingofoilimpregnatedpaperandfoilwoundontoaconductor.transformerOil-AirbushingOil-AirbushingTheoutdoorporcelains,withalternatinglong-shortshedform,offerssuperiorperformanceunderpollutedandsevereweatherconditions.Thebushingconsistsofcorecontainer,porcelainandflange.TheconnectingflangeincorporatesaselfgroundingtesttappingforcapacitanceandtanδmeasurementDuringperiodicalmaintenance.Aventingplugfortransformerturretevacuationisprovided.Thebushingmaybeinclinedupto30degreesfromthevertical.Oil-AirbushingThetypicalfailuresoftransformerbushingsInsulationstructureofTRENCHbushingBreakdownoflowerinsulatorExternalflashoverPunctureofcondenserbodyPoorsealing,resultinwaterinflowPoorsealing,resultinwaterinflow