高电压技术2025，Vol.51Issue(6)：2599-2609,11.DOI:10.13336/j.1003-6520.hve.20241481
变压器用植物绝缘油冷流特性的研究进展
Research Progress on Cold Flow Characteristics of Vegetable Insulating Oils for Transformers
摘要
Abstract
Vegetable insulating oil,as an insulating medium,is generally recognized as a good alternative to mineral in-sulating oil due to its excellent environmental friendliness,fire resistance and renewability.However,its poor cold flow characteristics such as high viscosity and high pour point enable the low-temperature operation reliability of vegetable insulating oil in transformer to be not high,which has become a bottleneck restricting its wide application.Therefore,in this paper,we first systematically sort out the research results on the cold flow characteristics of vegetable insulating oils,focus on the microscopic molecular structure of vegetable insulating oils,and discuss the relationship between the fatty acid species,carbon chain length,degree of unsaturation,and molecular geometric configurations of vegetable insulating oils and their cold flow characteristics.Then,the improvement methods to enhance the cold flow characteristics of vege-table insulating oils are discussed,the advantages and disadvantages of different improvement methods are summarized,and the subsequent research dynamics and development prospects of the cold flow characteristics of vegetable insulating oils for transformers are envisioned.This research summary will provide reference for the application of vegetable insu-lating oils in improving cold flow characteristics and transformer insulation systems.关键词
变压器/植物绝缘油/冷流特性/倾点/运动黏度Key words
transformer/vegetable insulating oil/cold flow characteristic/pour point/kinematic viscosity引用本文复制引用
郑含博,蓝泓策,姚德贵,李毅,蔡胜伟,李婧祺,杨涛,王阳..变压器用植物绝缘油冷流特性的研究进展[J].高电压技术,2025,51(6):2599-2609,11.基金项目
国家自然科学基金(52277139 （）
52367014) （）
广西杰出青年科学基金(2024GXNSFFA999017).Project supported by National Natural Science Foundation of China(52277139,52367014),Guangxi Science Fund for Distinguished Young Scholars(2024GXNSFFA999017). （2024GXNSFFA999017）
