中国电工网www.chinaet.net户外环境对SF6压力表的影响因素分析刘杰,黄秀娟(国网浙江省电力有限公司超高压分公司,浙江杭州311121)摘要:对变电站中GIS压力监测进行了分析,指出目前变电站内存在的两种SF6压力表安装形式的优缺点。分别从温度变化和环境湿度两个方面分析了户外运行环境对SF6压力表的影响,给出了应对措施。对于前者,如果发现压力降低的情况,就应第一时间进行气室泄漏检查,排除泄漏的情况下再进行压力表及其回路等方面的检查分析。对于后者,给出了在压力表接线盒封堵和直流负极端增加压控导通元件来避免压力表接线柱氧化发生的方案。关键词:GIS设备;SF6压力表;压力补偿;绝缘降低中图分类号:TM595DOI:10.19768/j.cnki.dgjs.2023.01.043AnalysisofInfluenceFactorsofOutdoorEnvironmentonSF6PressureGaugeLIUJie,HUANGXiujuan(EHVBranchCompanyofStateGridZhejiangElectricPowerCo.,Ltd.,Hangzhou311121,China)Abstract:TheGISpressuremonitoringinsubstationisanalyzed,andtheadvantagesanddisadvantagesoftwoSF6pres-suregaugeinstallationsinsubstationarepointedout.TheinfluenceofoutdooroperatingenvironmentonSF6pressuregaugeisanalyzedfromtwoaspects:temperaturechangeandenvironmentalhumidity,andcountermeasuresaregiven.Fortheformer,ifthepressureisfoundtobereduced,theairchamberleakageinspectionshouldbecarriedoutatthefirsttime,andthenthepressuregaugeanditscircuitshouldbecheckedandanalyzedundertheconditionofelimin...