变压器油老化对变压器套管温度场的影响  

Effect of Aging of Transformer Oil on Temperature Field of Transformer Bushing

作　　者：汪书苹 从伟[3] 周勇 杨娴[4] 伦志宜 朱胜龙 WANG Shu-ping;CONG Wei;ZHOU Yong;YANG Xian;LUN Zhi-yi;ZHU Sheng-long(State Grid Anhui Electric Power Research Institute,Anhui Province Key Laboratory for Electric Fire and Safety Protection,Hefei 230601,China;State Grid Laboratory Fire Protection for Transmission and Distribution Facilities,Hefei 230601,China;State Key Laboratory of Fire Science,University of Science and Technology of China,Ltd.,Hefei 230027,China;Anhui Xinli Electric Technology Consulting Co.,Ltd.,Hefei 230601,China;Electric Power Research Institute of State Grid Anhui Electric Power Co.,Ltd.,Hefei 230601,China)

机构地区：[1]国网安徽省电力有限公司电力科学研究院电力火灾与安全防护安徽省重点实验室,安徽合肥230601 [2]国家电网公司输变电设施火灾防护实验室,安徽合肥230601 [3]中国科学技术大学火灾科学国家重点实验室,安徽合肥230027 [4]安徽新力电业科技咨询有限责任公司,安徽合肥230601 [5]国网安徽省电力有限公司电力科学研究院,安徽合肥230601

出　　处：《变压器》2022年第3期18-22,共5页Transformer

基　　金：国网安徽省电力有限公司科技项目(安徽新力电业科技咨询有限责任公司项目2017咨-GC-10)。

摘　　要：本文中作者以某126kV油浸纸套管为研究对象,利用有限元分析软件ANSYS分析了变压器油的老化对套管温度场的影响。结果表明,老化增大了变压器油的介质损耗因数、电阻率以及热导率,套管发热量增加,温度出现上升,事故危险性增加。The 126 kV oil-paper casing is taken as the research object, and the finite element analysis software ANSYS is used to analyze the influence of transformer oil aging on the temperature field of the bushing. The results show that the aging of the transformer oil increases the dielectric loss factor, resistivity and thermal conductivity, which makes the bushing heat increase, and then the temperature rises and the risk of the accident increases.

关 键 词：变压器套管 变压器油 老化 温度场 热导率 

分 类 号：TM401.2[电气工程—电器]