一种中压配电线路用内置金属氧化物压敏电阻的悬式复合绝缘子研制  

Development of Suspension Composite Insulators With Built-in Metal-oxide Varistors for MV Distribution Lines

作　　者：沈海滨 雷挺 陈康 边凯 陈维江 卢甜甜 张兆华 赵霞 贺子鸣 SHEN Haibin;LEI Ting;CHEN Kang;BIAN Kai;CHEN Weijiang;LU Tiantian;ZHANG Zhaohua;ZHAO Xia;HE Ziming(China Electric Power Research Institute,Haidian District,Beijing 100192,China;Shandong Xunshi Electric Co.,Ltd.,Zibo 255086,Shandong Province,China;State Grid Corporation of China,Xicheng District,Beijing 100031,China)

机构地区：[1]中国电力科学研究院有限公司,北京市海淀区100192 [2]山东迅实电气有限公司,山东省淄博市255086 [3]国家电网有限公司,北京市西城区100031

出　　处：《电网技术》2020年第1期361-368,共8页Power System Technology

基　　金：国家电网公司科技项目(521500160003)：中压配电线路雷电防护关键技术研究~~

摘　　要：线路避雷器与线路绝缘子彼此独立设计与生产,现场组装,存在安装复杂、综合成本高、安全风险点多等应用不足,将避雷器与绝缘子集成一体化设计是一种解决方案。提出并研制了一种10 kV和35 kV线路用新型结构内置金属氧化物压敏电阻悬式复合绝缘子,研究确定了技术参数,设计定型结构形式为2个压敏电阻子单元分置两端、中间设置绝缘支柱间隙,并针对关键组件间相互干扰的特点,提出了组合干扰试验项目和方法,联合避雷器和绝缘子现行技术标准规定试验项目,试验验证了装置功能有效、性能稳定、运行安全。研制的装置已挂网试用,运行状态良好。Line arresters and line insulators are designed and manufactured independently from each other,and assembled on site.There are deficiencies in their applications such as complicated installation,high comprehensive cost,and many safety risks.Integrated design of arrester and insulator is a solution for these deficiencies.In this paper,a new type of suspension composite insulator with built-in metal-oxide varistors for 10 kV and 35 kV lines is proposed and developed.Its technical parameters are studied and determined,the structural form is designed such that two varistor subunits are disposed at both ends of the insulator,and an insulator gap is disposed in the middle.For the characteristics of mutual interference between key components,a combined interference test scheme and method are proposed,and the test items of current technical standards of lightning arrester and insulator are combined.The test verified that the devices have effective functions,stable performance and safe operation.The devices developed in this paper are applied to the lines with good operation record.

关 键 词：配电线路 雷电防护 悬式复合绝缘子 压敏电阻 一体化设计 技术参数 结构形式 试验验证 组合干扰试验 试应用 

分 类 号：TM86[电气工程—高电压与绝缘技术]