Timerelay is a use of electromagnetic principle or mechanical theory to realize delay control control electric appliance.
时间继电器是一种利用电磁原理或机械原理实现延时控制的控制电器。
2
Timerelay can be divided into electricity delay type and power outages delay type two kinds.
时间继电器可分为通电延时型和断电延时型两种类型。
3
Introduction was made to the composition and working principle of a power-off timedelayrelay which adopts CMOS digital circuit, digital dial disc for switch setting and without auxiliary power.