Surface Flashover Propagation Process on Alumina Dielectrics under Impulse Voltage Application in Vacuum

摘要：

We investigated the mechanism of surface flashover on alumina dielectrics under impulse voltage application in vacuum in order to enhance the electrical insulation performance of vacuum insulated power equipment. Through electrical and optical simultaneous measurements, we discussed propagation process of the surface flashover on alumina dielectrics in vacuum. We changed the incident angle (9) of electric lines of force to the alumina surface, i.e. parallel and perpendicular as the main parameter. The different propagation process of the surface flashover was found and discussed by the difference of charging process due to an electron flight distance.

作者: Hiroki Kojima Yusuke Nakano Naoki Hayakawa Kenji Tsuchiya Hitoshi Okubo

作者单位: Nagoya University, Nagoya, Japan Hitachi Ltd., Hitachi, Japan

会议类型: 国际会议

会议名称: 2011 1st International Conference on Electric Power Equipment-Switching Technology(第一届电力设备开断技术国际会议 ICEPE)

会议地点: 西安

会议语种:英文

页码: 530-533

在线出版日期: 2011-10-23（万方平台首次上网日期，不代表论文的发表时间）