电瓷避雷器Issue(6)：196-201,208,7.DOI:10.16188/j.isa.1003-8337.2023.06.023
温度对套管环氧胶浸纸绝缘频域介电响应的影响研究
Effects of Temperature Environment on the Dielectric Properties of Epoxy/Paper Composites for Bushing
摘要
Abstract
In order to study the effect of temperature on the properties of frequency domain dielectric spec-troscopy(FDS)about epoxy resin-impregnated paper(ERIP)insulation of bushing,the FDS test is conducted on the ERIP samples under high-low temperature(10℃～120℃)cycles,and the FDS curve for the ERIP samples under different cycles had been drawn.The results show that with the in-crease in the number of high-low temperature cycles,the FDS curve of the tanδand the complex capac-itance move upward and toward higher frequency at 120℃,and the FDS curve of the tanδand the imagi-nary parts of complex capacitance move upward as a whole at 10℃,while the curve of the real parts of complex capacitance remains basically unchanged.The reason of FDS curve changes between 10℃ and 120℃ is that the high-low temperature environment limits the response speed of charged particles per u-nit volume of the ERIP and the response speed causes the difference of the electron displacement polariz-ability.The upward shift of the spectrum curve in the high-frequency domain is caused by the strength-en of the conductivity loss,because the cellulose long chain of the crepe paper to be decomposed and the epoxy molecules of the epoxy glue to decompose can be affected by the the high-low temperature cycle environment.The results of the study can provide a theoretical basis for the evaluation of the ERIP insu-lation state of the graded bushing.关键词
高低温/频域介电响应/环氧胶浸纸绝缘/介质损耗因数/复合电容Key words
high-low temperature environment/FDS/ERIP/tan δ/complex capacitance引用本文复制引用
翟春雨,刘泰蔚,田晓云,岳永刚,霍峰,王剑,叶涛..温度对套管环氧胶浸纸绝缘频域介电响应的影响研究[J].电瓷避雷器,2023,(6):196-201,208,7.基金项目
内蒙古电力公司科技项目"基于物联网无线智能传感技术的交流变压器套管状态感知技术"(编号:GYW11202102708).Project Supported by Science and Technology Program of Inner Mongolia Power Company(No.GYW11202102708). （编号:GYW11202102708）
