复合材料科学与工程Issue(5)：36-42,7.DOI:10.19936/j.cnki.2096-8000.20240528.006
复合绝缘子芯棒EP/AlN复合材料沿面闪络及破坏机理研究
Study on surface flashover and failure mechanism of EP/AlN composite insulator rod
摘要
Abstract
Epoxy resin for composite insulator rod has the advantages of high mechanical strength and good in-sulation performance,but it is easy to produce electric tracking damage under the condition of heating and tempera-ture rise,which leads to the decrease of long-term operation stability and safety of power grid.Therefore,in this paper,epoxy resin/aluminum nitride(EP/AlN)composites with different micro-nano ratios are prepared.The sur-face flashover and surface tracking resistance characteristics are tested,and the trap distribution characteristics and surface damage parameters are analyzed.The results show that with the increase of the doping ratio of nanoparticles,the charge trapping ability of surface traps decreases,the surface conductivity increases,the surface discharge process is accelerated,the flashover voltage decreases,and the single release energy decreases.Combined with the increase of thermal conductivity,the surface temperature rise of epoxy resin is effectively inhibited,and the tracking resistance of epoxy resin is improved.关键词
复合绝缘子/填充改性/闪络/电痕/陷阱分布/复合材料Key words
composite insulator/filling modification/flashover/electrical tracking/trap distribution/composites分类
通用工业技术引用本文复制引用
张欣伟,周丽英,王博,戴雨薇,端木天翔,王彬,邢云琪..复合绝缘子芯棒EP/AlN复合材料沿面闪络及破坏机理研究[J].复合材料科学与工程,2024,(5):36-42,7.基金项目
国网内蒙古东部电力有限公司科技项目(SGMDDKOOGGJS2100128) （SGMDDKOOGGJS2100128）
