磁环抑制真空重燃过电压的陡度  

Steepness Suppression of Vacuum Restriking Overvoltage by Magnetic Ring

作　　者：董琴[1] 刘卫东[1] 孙会刚[2] 

机构地区：[1]清华大学电机系电力系统国家重点实验室,北京100084 [2]ABB集团中国研究中心,北京100016

出　　处：《高压电器》2007年第1期1-3,共3页High Voltage Apparatus

摘　　要：试验观测了高频磁环对真空间隙击穿所产生的陡波陡度的影响。试验显示,在导线上套上一串非晶材料磁环能够显著增加线路电感,对减小真空开关重燃过电压的陡度是有效的。Tests have been performed to investigate the high frequency magnetic rings＇ influence upon the steepness of the transients produced by breaking down a vacuum gap. It is showed that magnetic tings of amorphous material on a conductor can notably increase its inductance and make effective suppression on the steepness of the vacuum restriking overvoitage.

关 键 词：真空开关 重燃过电压 磁环 

分 类 号：TM864[电气工程—高电压与绝缘技术]