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断路器之触头详解

2019/8/17 8:59:38      点击:

很多电气设备都有属于自己的“触头”,作为电路保护器的断路器也不破例。

  断路器的触头比较特别,品种也比较多,假如作业特点来分的话,有可断触头、滑动触头和固定触头三类。

  此次我们首要介绍的,就是第一种可断触头。

  实际上可断触头下面还有小类能够分:

  第一种是刀形触头,刀形触头结构简略,分为面接触和线接触,广泛应用于低压开关和高压阻隔开关;

  第二种是对接式触头,这种触头动作速度快,缺点也较为明显,接触面不稳定,随压力变化较大,动作时容易发生弹跳;

  第三种是楔入形触头,由触片和楔形触块组成,一般楔形触块作为动触头,它的电动稳定性较高,有自洁效果;

  第四种为插入式触头,这种触头结构比较复杂,答应经过的电流也受到限制,且开断时间较长。

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