时间继电器的电气控制系统中是一个非常重要的元器件。一般分为通电
The electric control system of time relay is a very important component. Generally divided into electrify
延时和断电延时两种类型。 从动作的原理上有电子式、机械式等。电子式的是采用电容充放电再配合电子元件的原理来实现延时动作。机械式的样式较多，有利用气囊、弹簧的气囊式。
Two types of delay and power delay. From the principle of action, there are electronic, mechanical and so on. Electronic is the use of capacitor charging and discharging, and then cooperate with the principle of electronic components to achieve delay action. There are many mechanical styles, such as gasbag and spring.
时间继电器的接线方法：
Wiring method of time relay:
1、控制接线：把它看成直流继电器来考虑；
1, control wiring: regard it as DC relay to consider;
2、工作控制：虽然控制电压接上了，但是是否起控制作用，由面板上的计时器决定；
2, work control: Although the control voltage is connected, but whether control, decided by the timer on the panel;
3、功能理解：它就是一个开关，单刀双掷的，有一个活动点活动臂，就像常见的闸刀开关的活动刀臂一样；
3, understanding: it is a single pole double throw switch, and a movable arm point, knife knife switch as often as the arm;
4：负载接线：电源的零线或负极接用电器的零线或负极端；
4: load wiring: the zero line or negative pole of the power supply connects the zero or negative pole of the appliance;
5、工作原理：计时无效期间，相当于平常电灯开关断开状态。有效时，继电器动作，用电器得电工作，相当于平常电灯开关接通状态。
5, working principle: during the invalid period, equivalent to the ordinary light switch disconnect state. When effective, relay action, using electrical appliances to work, equivalent to the usual light switch through the state.
