SF_6气体在环形电极下的击穿特性  

Electrical Breakdown in SF_6 Between Ring Electrodes

作　　者：张慧君[1] 朱祖良[1] 赵君科[1] 何小海[1] 

机构地区：[1]中国工程物理研究院环保中心,绵阳621900

出　　处：《高电压技术》2006年第1期27-28,共2页High Voltage Engineering

摘　　要：为获得高电压等级SF6电器绝缘结构实际形状电极的击穿特性,试验了环形电极在SF6最大压力0.8MPA,端面曲率半径为0.1、0.3 CM时电极间击穿电压随气压的变化。确定了SF6气体在两类环形电极间击穿场强随气压的变化,并给出了试验值与简化模型的工程解析计算值间的比较,可供使用相似电极设备的设计参考。To get the exactly breakdown voltage of SF6 in actual electrode, the breakdown experiment is compulsory before the structure design of high voltage apparatus. In this paper, experimental results of electrical breakdown in SF6 between ring electrodes and the relationship between the breakdown voltage and the gas pressure are presented. The simplified model calculation shows the comparison of the experimental results and the engineering breakdown electric field strength. The results can be useful for similar structure design.

关 键 词：SF6 击穿 环形电极 

分 类 号：TM85[电气工程—高电压与绝缘技术]