中国电机工程学报2016，Vol.36Issue(18)：5078-5086,9.DOI:10.13334/j.0258-8013.pcsee.152093
绝缘介质表面流注传播特性与闪络特性的关系
Relationship Between Characteristics of Streamer and Flashover Propagation Along the Insulation Surfaces
摘要
Abstract
The streamer is the most critical and complex stage of the electrical breakdown, and is important in the determination of electrical breakdown characteristics of the electrode gap. The photographs, showed the path of the streamer propagation in air alone and along the smooth cylindrical insulator or insulator with shed, were taken by ultraviolet camera. The streamer propagated along smooth insulation surface with two propagation paths. That is‘surface’ component propagating along the insulation surface and ‘air’ component propagating in air. As a shed appeared on the insulation surface, the ‘surface’ propagation path was cut off, hence, the ‘surface’ component of streamer never reached the cathode. The ‘air’ propagation path could bypass the barrier, and the ‘air’ component of streamer would cross the gap to reach the cathode. Through improving the applied voltage between the plates, the characteristics of flashover in air gap and along the insulation surface were investigated deeply. The relations between the streamer‘stability’ propagation fields and the 50%breakdown voltage were analyzed. The flashover path along the insulators with a shed was shot by a camera, which was compared with streamer propagation path. Hence, the relation between streamer propagation path and the flashover path along the insulators with a shed was found.关键词
沿面闪络/流注放电/伞裙结构/“三电极”结构/流注传播路径Key words
surface flashover/streamer discharge/shed configuration/three electrode arrangement/streamer propagation path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,王黎明,关志成,周军..绝缘介质表面流注传播特性与闪络特性的关系[J].中国电机工程学报,2016,36(18):5078-5086,9.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(51377093，51377096，51307094)。The National Basic Research Program of China (973 Program)(2011CB209406) （973项目）
Projects Supported by National Natural Science Foundation of China(51377093,51377096,51307094) （51377093,51377096,51307094）
