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凝露状态对硅橡胶绝缘表面闪络特性影响的实验研究.docx

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凝露状态对硅橡胶绝缘表面闪络特性影响的实验研究 Title:ExperimentalStudyontheInfluenceofGelStateonElectricalFlashoverCharacteristicsofSiliconeRubberInsulationSurfaces Abstract: Siliconerubberinsulatorsarewidelyusedinpowertransmissionanddistributionsystemsduetotheirexcellentelectricalinsulationproperties.However,theirperformancecanbeaffectedbyenvironmentalfactors,includingthepresenceofsurfacecontaminantsandtheformationofcondensation.Thispaperfocusesontheexperimentalstudyoftheinfluenceofgelstateontheelectricalflashovercharacteristicsofsiliconerubberinsulationsurfaces.Theexperimentalresultsindicatetheimportanceofconsideringthegelstateinevaluatingtheinsulationperformanceofsiliconerubbermaterials. Introduction: Siliconerubberinsulatorshavegainedpopularityinpowersystemsduetotheirsuperiorelectricalandmechanicalproperties.Theyofferhighdielectricstrength,excellenthydrophobicity,andresistancetoenvironmentalstresses.Nevertheless,theirperformancemaybecompromisedundercertainconditions,suchasthepresenceofcontaminantsormoistureontheirsurfaces.Theformationofagellayeronthesurfaceofsiliconerubberinsulators,calledthegelstate,maysignificantlyaffecttheirelectricalflashovercharacteristics.Thispaperaimstoinvestigatetheimpactofgelstateontheinsulationperformanceofsiliconerubberinsulators. ExperimentalSetup: Tostudytheinfluenceofthegelstateonelectricalflashovercharacteristics,alaboratorysetupwasestablished.Theexperimentalsetupincludesahighvoltagepowersupply,asiliconerubbersample,apollutionchamber,andahigh-speedcameraforrecordingflashoverevents.Avarietyofsampleswereprepared,representingdifferentgelstates,includingdry,wet,anddifferentlevelsofcondensationonthesurface. ExperimentalProcedure: 1.SamplePreparation: -Siliconerubbersampleswerecutintoappropriateshapesandsizes. -Eachsamplewassubjectedtodifferentgelstatesbyadjustingenvironmentalconditions. -Thegelstatewascharacterizedbymeasuringthecontactangleandsurfaceroughness. 2.FlashoverTest: -Thesamplesweresubjectedtoagraduallyincreasingvoltageuntilflashoveroccurred. -Thef