绝缘材料2023,56(7)朱传运等：交流GIS用盆式绝缘子三交区绝缘结构设计研究交流GIS用盆式绝缘子三交区绝缘结构设计研究朱传运，刘超峰，王小东，李阳，黄鑫，齐小虎，管健，窦云鹤（河南平高电气股份有限公司，河南平顶山467001）摘要：以提高盆式绝缘子三交区绝缘能力为出发点，从三交区构成、异物运动特性及典型放电现象分析了三交区结构设计缺陷导致异物聚集并诱发盆式绝缘子沿面闪络的原因。通过电场仿真，研究接地屏蔽电极、盆式绝缘子法兰处厚度及接地屏蔽电极与母线筒体法兰距离对低电位三交区电场强度的影响，给出高电位三交区电场随盆式绝缘子底部倾斜角度、三交区宽度的变化规律，提出接地屏蔽电极高压侧防止树脂贯通破坏厚度的计算方法及三交区电场校核判据。结果表明：合理的高、低电位三交区结构设计可有效抑制异物聚集诱发的盆式绝缘子沿面闪络。关键词：盆式绝缘子；绝缘设计；三交区；雷电冲击电压中图分类号：TM216DOI:10.16790/j.cnki.1009-9239.im.2023.07.008InsulationstructuredesignofbasininsulatorinthreemediainteractionareasforACGISZHUChuanyun,LIUChaofeng,WANGXiaodong,LIYang,HUANGXin,QIXiaohu,GUANJian,DOUYunhe(HenanPinggaoElectricCo.,Ltd.,Pingdingshan467001,China)Abstract:Inordertoimprovetheinsulationabilityofthethreemediainteractionareaofbasininsulator,thereasonsoftheaccumulationofforeignbody,andtheflashoveralongthebasininsulatorsurfaceinducedbythestructuredesigndefectofthethreemediainteractionareawasanalyzedfromthecompositionofthreemediainteractionarea,themovementcharacteristicsofforeignbodyandthetypicaldischargephenomenon.Throughelectricfieldsimulation,theinfluenceofgroundingshieldingelectrode,theflangethicknessofbasininsulator,andthedistancebetweenthegroundingshieldingelectrodeandthebusbarcylinderflangeontheelectricfieldintensityinthelowpotentialthreeinteractionareawerestudied,thevariationlawofelectricfieldinthehighpotentialthreeinteractionareawithtiltingangleandthreemediainteractionareawidthofbasininsulatorweregiven.Thecalculationmethodofthethicknessofthehighvoltagesideofgroundingshieldelectrodetopreventresinthroughfailureandthecriterionofelectricfieldcheckinthethreemediainteractionareawerepresented.Theresult...
