Function and principle of time relay

The function and principle of time relay are as follows: Function. Time relay can be switched according to the preset delay or timing trigger circuit, which is widely used in automation equipment such as production automation control, safety control, lighting control, medical instruments, instruments and meters. Principle. The working principle of time relay is based on the principle of electromagnetic attraction and release. It usually consists of electromagnets, including a coil and a movable iron core. When the coil is energized, the generated magnetic field attracts the movable iron core to make it connect or disconnect the circuit. The position of the moving iron core is related to time, and the required time interval can be set by adjusting the knob or dial on the relay.