石英砂熔断器限流和熄弧原理的新研究  

New Research on Current-Limiting and Arc-Quenching Theory for Quartz Sand Fuse

作　　者：尚振球[1] 

机构地区：[1]西安交通大学,710049

出　　处：《高压电器》1993年第4期47-49,共3页High Voltage Apparatus

摘　　要：通过理论分析表明,石英砂熔断器具有强烈的限流和熄弧性能的原因是,电弧被限制在熔体汽化后让出的很小的空腔中燃烧,其散发功率总是大于输入功率,因而它自动趋向熄灭。Using theoretical analysis it is obtained that the basic reason why quartz sand fuses have powerful limiting current and quenching arc performance is that the arc is limited in a small cavity to burn which appears after vaporizing fuse element,its dissipating power is always more than input power,then it automatically tends to quench.

关 键 词：熔断器 限流特性 灭弧原理 石英砂 

分 类 号：TM563.012[电气工程—电器]