摘要
研究了高温状态雷电冲击和操作冲击作用下的空气间隙击穿特性 ,发现雷电冲击棒 -板间隙击穿电压随温度升高而下降 ,其规律符合 U=U0 δ0 .5。负极性操作冲击击穿电压随温度增加下降速度大于雷电冲击 ,正极性操作冲击击穿电压先随温度增加而下降 ,再随温度增加而增高 ,温度 5 70K时间隙击穿电压达最大值 。
This paper mainly studies the air breakdown behavior for rod plane gap at high temperature under both lightning impulse and switching impulse respectivety. The test results show the insulation strength of air is reduced as the temperature increase for both positive and negative lightning impulse, It is also the same under negative switching impulse case. But it is very complicated under positive switching impulse case. With temperature increase, the breakdown voltage reduces at first, then it increase, finally it decrease again.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2000年第4期48-49,52,共3页
High Voltage Engineering
