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通用的延时继电器

2014/9/29 11:59:15点击:
常见延时继电器有气囊式和电子式的,还有钟表式的。

气囊式的是在利用电磁铁启动后气囊中的气体经由小孔放气来延时执行指令。

电子式的由电子电路来延时执行指令。

这两种延时继电器都是当点的,控制时间不长精度也不高,在锅炉运行和电动机的延时降压启动中经常使用,也能够满足要求。当然会有更好的,只是我没有使用过。

钟表式的延时继电器,利用钟表的擒纵装置来控制类似发条弹簧的释放时间,精度高。

多点的延时继电器,我使用过的有一种机械式的,利用一个小同步电动机作动力,带动凸轮接点,可以有六个可以定时的接点,精度比较高。但是这种落后的“多点时间继电器”现在基本淘汰了

基本参数:

延时范围:0.1 秒 - 100 小时控制电路:

控制和供电电压:

> 24 V DC ±10%

> 24…240 V AC ±10%

> RTMF: 12…240 V AC/DC ±10%

频率:50…60 Hz.

运行温度:-5…+55°C