变压器套管侧无溶剂型绝缘涂料试验方法探讨  

Test Method of Solvent-Free Insulating Coatings on Transformer Bushing Side

作　　者：唐涛南 唐程[2] 袁田 郑泞康 TANG Taonan;TANG Cheng;YUAN Tian;ZHENG Ningkang(State Grid Beijing Electric Power Company,Beijing 100031,China;Wuhan NR Electrical EngineeringEquipment Co.,Ltd.,Wuhan 430074,China;China Electric Power Research Institute,Wuhan 430074,China;State Grid Henan Electric Power Company Economic and Technological Research Institute,Zhengzhou 450003,China)

机构地区：[1]北京市电力公司,北京100031 [2]国网电力科学研究院武汉南瑞有限责任公司,武汉430074 [3]中国电力科学研究院有限公司,武汉430074 [4]国网河南省电力公司经济技术研究院,郑州450003

出　　处：《电瓷避雷器》2021年第2期128-134,共7页Insulators and Surge Arresters

摘　　要：变压器套管侧绝缘化改造是国网十八项反措的重点工作,笔者研究了涂料改性法的变压器套管侧绝缘化改造原理、特点及试验方法,分析了RTV涂料的试验项目类别和绝缘化的劣势,着重对比了无溶剂绝缘涂料与RTV涂料的区别,并根据RTV涂料应用环境,提出了新型无溶剂涂料的试验项目。研究发现,用于绝缘子和导体的涂层使用参数存在差别,用于导体表面绝缘化的涂料在导热、附着力、平整度方面更加严格,建议用于导体的绝缘涂层增加导热系数、硬度、柔韧性、耐磨性等参数以对无溶剂型绝缘涂料的性能进行测试,在此基础上对无溶剂型绝缘材料的项目重新进行了分类和归纳。The insulation transformation of transformer bushing side is the key work of State Grid 18 counter measures. The author explores the principle,characteristics and test methods of insulation transformation of transformer bushing side based on coating modification method,analyzes the test item categories and insulation disadvantages of existing RTV coating,emphatically compares the difference between solvent-free insulating coating and RTV coating,and applies RTV coating according to the application environment,the test items of new solvent-free coatings are given. It is found that there are differences in the use parameters of the coating used for insulator and conductor,and the coating used for surface insulation of conductor is stricter in terms of heat conduction,adhesion and flatness. It is suggested that parameters such as thermal conductivity,hardness,flexibility and wear resistance should be added to the insulating coating for conductor to test the performance of solvent-free insulating coating,and on this basis,solvent-free insulation is tested the items of materials are classified and summarized again.

关 键 词：变压器套管侧 绝缘化 无溶剂 击穿强度 试验项目 

分 类 号：TM216.5[一般工业技术—材料科学与工程] TM41[电气工程—电工理论与新技术]