时间继电器延时转换分通电延时转换和断电延时转换。
Time relay, time delay switching, electrical delay switching and power off delay conversion.
断电延时转换就是当继电器线圈通电时常开或常闭，瞬间闭合或断开，继电器线圈断电后，开始延时，原来瞬时闭合或断开的触点，仍然保持闭合或断开的状态。延时结束后继电器恢复到以前的工作状态。
Power off delay conversion is when the relay coil is energized, often open or normally closed, instantly closed or disconnected, the relay coil after power off, began to delay, the original instantaneous closed or disconnected contacts still remain closed or disconnected state. After the end of the delay, the relay is restored to its previous working state.
通电延时转换就是当继电器线圈通电时，通电延时常开和常闭，到达设定时间动作，即常开变常闭，常闭变常开。当通电延时时间继电器线圈断电后，触点复位到初始状态。
When the relay coil is energized, the power delay conversion is often open and normally closed, reaching the set time action, that is, normally open, normally closed, normally closed, often open. When the power delay time relay coil is switched off, the contacts are reset to the initial state.
