Development of Mixed Insulation Oil as Alternative Liquid Dielectric:A Review  

作　　者：Jian Hao Jingwen Zhang Wenyu Ye Ruijing Liao Lijun Yang 

机构地区：[1]State Key Laboratory of Power Transmission Equipment Technology,School of Electrical Engineering,Chongqing University,Chongqing 400044,China [2]IEEE [3]CSEE

出　　处：《CSEE Journal of Power and Energy Systems》2024年第3期1242-1258,共17页中国电机工程学会电力与能源系统学报（英文）

基　　金：supported in part by the National Natural Science Foundation of China under Grant 52077015;the National Natural Science Foundation of China under Grant HWQB2023001;the Graduate Research and Innovation Foundation of Chongqing,China under Grant CYB23025.

摘　　要：Use of traditional mineral oil(MO)as a liquid insulation in transformers has spanned more than 130 years.However,MO has poor heat resistance,a low ignition point,and is a non-renewable resource,which does not meet development requirements for high-performance and environmentally friendly insulation oil.Consequently,researchers have explored alternatives such as natural ester(NE)and synthetic ester(SE)oils,as well as mixed insulation oils.Mixed insulating oil is a blend of diverse insulating oil types,with optimal performance achieved by adjusting proportions of base oils.This article summarizes the innovative achievements and development of mixed insulation oil in terms of development of mixed ratio,basic physical chemical properties,electrical properties,thermal stability,and application including operation and maintenance technology.Through these efforts,this article aims to provide recommendations for future development of mixed insulating oils to advance liquid dielectric research based on enhancement mechanisms.

关 键 词：Environmentally friendly insulation oil ester oils HIGH-PERFORMANCE mineral oil mixed insulation oils 

分 类 号：TM73[电气工程—电力系统及自动化]