中国电机工程学报Issue(22)：155-165,11.
绝缘介质表面流注发展特性的机理研究
Research on Characteristics of Streamer Propagation Along Insulation Surfaces
摘要
Abstract
The streamer propagation along the insulation surface is a significant physical process during the surface flashover. Research on the streamer propagation along the insulation surface is not only helpful for understanding the process of surface flashover, but also has important significance on the design of transmission lines and electrical equipment. The variation of the streamer propagation probability and average propagation velocity with electric field along the different insulation surface was measured through photomultipliers in three-electrode arrangement. The electric field required for streamer stable propagation along the insulation surface is larger than that in the air alone. At the same time, for electric fields higher than that required for the streamer stable propagation, streamer propagates along insulation surface with a ‘surface’ and an ‘air’ component. However, the streamer propagates in the air alone without a‘surface’ component, only with an ‘air’ component. The streamer propagation electric field and average velocity are different respectively when the streamer propagates along the different insulation surfaces. The electric field required for streamer stable propagation is in proportion to permittivity of dielectric. However, the relationship between streamer propagation velocity and permittivity is not evident, which is affected by attachment of charge to the surface and photoemission of secondary electrons from the surface so much.关键词
沿面闪络/流注放电/绝缘介质/“三电极”结构/流注传播概率/流注传播速度Key words
surface flashover/streamer discharge/insulation dielectric/three-electrode arrangement/streamer propagation probability/streamer propagation velocity分类
信息技术与安全科学引用本文复制引用
孟晓波,梅红伟,陈昌龙,王黎明,关志成,周军..绝缘介质表面流注发展特性的机理研究[J].中国电机工程学报,2013,(22):155-165,11.基金项目
国家重点基础研究发展计划项目(973项目)(2011CB 209406)；国家自然科学基金项目(50777033，50977048)。@@@@The National Basic Research Program of China (973 Program)(2011CB209406) （973项目）
Project Supported by National Natural Science Foundation of China (50777033,50977048) （50777033,50977048）
