预览加载中，请您耐心等待几秒...

500kVGIS设备SF_6气体泄漏缺陷分析及处理.docx

预览
1/2
2/2

在线预览结束，喜欢就下载吧，查找使用更方便

下载提示 文本预览

如果您无法下载资料，请参考说明：

1、部分资料下载需要金币，请确保您的账户上有足够的金币

2、已购买过的文档，再次下载不重复扣费

3、资料包下载后请先用软件解压，在使用对应软件打开

500kVGIS设备SF_6气体泄漏缺陷分析及处理 Abstract： Recently,withthedevelopmentofpowertransmissionandtransformationtechnology,moreandmore500kVGISequipmenthasbeenputintooperation,andtheirsafeandreliableoperationhasbecomeanimportantissueinthepowerindustry.Asanimportantinsulationandarcextinguishingmedium,SF6gasplaysanirreplaceableroleinGISequipment.However,duetoitshightoxicity,highinsulationperformancerequirements,andhighpressurerequirements,thehandlingandmaintenanceofSF6gasrequiresverystrictproceduresandstandards.Inthispaper,wewillanalyzeanddealwiththedefectscausedbySF6gasleakagein500kVGISequipment,studythecausesofdefects,andproposeeffectivetreatmentmethods. Introduction: Gas-insulatedswitchgear(GIS)isanewtypeofpowertransmissionandtransformationequipmentwithhighreliability,high-techcontent,andsignificanteconomicandsocialbenefits.TheGISequipmenthastheadvantagesofsmallarea,lessoccupationofland,strongadaptabilitytothenaturalenvironment,highinsulationstrength,lowmaintenancecost,andlongservicelife.Therefore,itiswidelyusedinpowersystems,especiallyinurbandistributionnetworks,high-risebuildings,andundergroundpowerstations.TheSF6gasisthemostwidelyusedinsulationandarc-extinguishingmediuminGISequipment.However,duetoitshightoxicity,highinsulationperformancerequirements,andhighpressurerequirements,thehandlingandmaintenanceofSF6gasrequiresverystrictproceduresandstandards.Anyfailuretooperatecorrectlymaycauseagasleakageaccident,seriouslyendangeringthesafetyoftheequipmentandpersonnel. CauseanalysisofSF6gasleakagedefects: ThedefectscausedbySF6gasleakagemainlyincludethefollowingsituations: 1.Poorinstallationquality:TheinstallationofGISequipmentrequiresahighleveloftechnicality.Iftheinstallationisnotinplace,itmaycauseunevenpressureintheSF6gastank,leadingtoSF6gasleakage. 2.Mechanicaldamage:TheinternalstructureofGISequipmentisrelativelycomplexanddelicate,anditisnecessarytohandleitwithcareduringtransportationandinstallation.Ifthereismechanicaldamage,itmaycauseSF6gasleakage. 3.Sealingfailure:Thesealingmateri