中国电机工程学报Issue(12)：1938-1947,10.DOI:10.13334/j.0258-8013.pcsee.2014.12.014
气压与湿度对绝缘介质表面流注发展特性影响的试验研究
Experimental Research on Influences of Air Pressure and Humidity on Characteristics of Streamer Propagation along Insulation Surfaces
摘要
Abstract
At present, most of the UHV transmission lines, under construction and planning, will pass the high altitude area. The complex weather conditions along the transmission lines will make the insulation condition of the transmission lines and electrical equipment face the ordeal. Therefore, it is necessary to study the infulence of air pressure and humidity on characteristics of flashover along the insulation surfaces. The research results will provide a theory basis for the insulation design of the UHV transmission lines. In the paper, the infulence of environment factors (air pressure and humidity) on characteristics of flashover along the insulation surfaces was discussed through inquiring into the mechanism of streamer discharge. In three-electrode arrangement, the characteristics of streamer propagation along insulation surfaces under the different air pressure and humidity were measured by photomultipliers. The test results show that the streamer stability propagation field is in proportion to air pressure or humidity. Under the same electric field, the streamer propagation velocity or streamer luminous intensity is in inverse proportion to air pressure or humidity. Therefor,It is easier for streamer propagation in the lower air pressure and humidity.The streamer stability propagation field is lower, under the same electric field, the streamer propagation velocity or streamer luminous intensity is higher.关键词
沿面闪络/流注放电/气压和湿度/“三电极”结构/流注传播电场/流注传播速度Key words
Surface flashover/Streamer discharge/Air Pressure and Humidity/Three electrode arrangement/Streamer propagation electric field/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..气压与湿度对绝缘介质表面流注发展特性影响的试验研究[J].中国电机工程学报,2014,(12):1938-1947,10.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）
