高压电器2017，Vol.53Issue(4)：31-35,40,6.DOI:10.13296/j.1001-1609.hva.2017.04.006
固体绝缘件长时间正常工作条件下电老化寿命评估方法研究
Researches on a Probabilistic Indicating Method for Assessing End-of-life of Solid Insulating Materials Under Electrical Stress at Long-time Normal Working Conditions
摘要
Abstract
Researches on the solid insulated switchgear is becoming a hot topic in area of distribution network,due to the increasing demand for the miniaturization of switchear in power system.In order to describe the aging process of solid insulating material in switchgear and predict its insulation life,samples of epoxy resin board were studied with unaqual-diameter electrodes in this paper.The related insulation parameters were measured in the aging process.By setting the end of electrical aging life,characteristic life under different voltage were given by applying Weibull distribution on the experimental data.The corresponding inverse power law formula was obtained using curve fitting in MATLAB.The life of 10 mm×2 mm epoxy resin board in 2.4 kV was obtained by extrapolating the data.A reference method for assessing the electrical aging life of insulating material in switchgear was put forward.In addition,the suggestions on improving the efficiency of the aging test and equipment maintenance were given.关键词
环氧树脂/电老化/寿命预测/威布尔分布/固体绝缘开关柜Key words
epoxy/electrical aging/life estimation/Weibull distribution/solid insulated switchgear引用本文复制引用
袁端磊,王海燕,杨芳,朱志豪,费翔,程显..固体绝缘件长时间正常工作条件下电老化寿命评估方法研究[J].高压电器,2017,53(4):31-35,40,6.基金项目
国家自然科学基金(51407163,51477024) （51407163,51477024）
中国博士后科学基金(2014M552012,2015T80778) （2014M552012,2015T80778）
河南省国际科技合作计划项目(152102410019).Project Supported the National Natural Science Foundation of China(51407163,51477024),China Postdoctoral Science Foundation (2014M552012,2015T80778),International Science & Technology Cooperation Project of Henan Province of China(152102410019). （152102410019）
