10 kV配电避雷器大电流冲击耐受能力影响因素研究  

Influencing Factors of High Current Impulse Withstand Capability of 10 kV Distribution Arrester

作　　者：王陆璐 黄佳瑞 陈立 万克 左中秋 WANG Lulu;HUANG Jiarui;CHEN Li;WAN Ke;ZUO Zhongqiu(China Electric Power Research Institute,Wuhan 430074,China)

机构地区：[1]中国电力科学研究院有限公司,武汉430074

出　　处：《电瓷避雷器》2022年第5期59-66,共8页Insulators and Surge Arresters

基　　金：中国电力科学研究院有限公司创新基金资助项目(编号:5242002000QA SZ83-21-003)。

摘　　要：为了明晰导致10 kV配电避雷器4/10μs大电流冲击耐受失效的原因,验证大电流冲击耐受试验试品等价性,提升入网避雷器质量。笔者以10 kV配电系统用瓷外套、复合外套避雷器为研究对象,采用试验手段研究不同结构的整支避雷器及其核心元件电阻片、介电特性比例单元的大电流冲击耐受能力;对比不同结构的配电避雷器以及同一避雷器的不同试品类型之间大电流冲击耐受能力的差异,分析影响10 kV配电避雷器大电流冲击耐受能力的因素,从而为避雷器大电流冲击试验样品的选择,为电网用户选择性能优良的避雷器提供技术支撑。In order to clarify the cause of the failure of the 4/10 μs high current impulse withstand of the 10 kV distribution arrester, and verify the equivalence of different types of high-current impulse withstand test samples, and improve the quality of the arrester connected to the grid. The author takes the porcelain-housed and polymer-housed arrester for 10 kV power distribution system as the research object, and uses the test method to study the high-current impulse withstand capability of the whole arres-ter with different structures, its core element resistor piece, and the dielectrically prorated section. Comparing the difference in high current impulse withstand capability between distribution arresters of different structures and different samples of the same arrester. The factors affecting the high current impulse withstand capability of 10 kV distribution arresters are analyzed, so as to provide technical support for optimizing the selection of arrester high current impulse test samples and for grid users to choose arresters with excellent performance.

关 键 词：配电避雷器 整支避雷器大电流冲击 介电特性比例单元 试品等价性 

分 类 号：TM862[电气工程—高电压与绝缘技术]