用小电流晶闸管使接触器实现无弧运行  

A METHOD TO SWITCH A CONTACTOR WITHOUT ELECTRIC ARC BY USING SMALL CURRENT THYRISTOR

作　　者：张琳[1] 周润文[1] 丘晓华[1] 

机构地区：[1]华南理工大学

出　　处：《电工电能新技术》1997年第4期59-62,共4页Advanced Technology of Electrical Engineering and Energy

摘　　要：本文提出用小电流晶闸管与接触器组成组合开关。在接通和关断电路时无电弧，接触器可省去灭弧罩，结构简化。且可用于易燃易爆场合。晶闸管毋须电子触发线路，线路简单，成本低。A novel combined switch is presented in this paper. By employing small current thyristors, we can make a contactor to switch on or off without electric arc. Since arc deflecting cover can be eliminated in the switch, its structure is simple and the switch can be used in inflammable and explosive environment. The thyristors in the switch do not needed electronic trigger circuit. The combined switch is easy to builtland its cost is low.

关 键 词：接触器 无弧运行 晶闸管 小电流晶闸管 

分 类 号：TM572.06[电气工程—电器] TN34[电子电信—物理电子学]