Three-phase asynchronous motor electric control circuit
Source: InternetPublisher:elleny Keywords: Control circuit electromechanical three-phase asynchronous motor dynamic control Updated: 2021/12/20
The three-phase asynchronous motor inching control circuit is shown in Figure 4-1. When working, first close the knife switch os and connect the three-phase power supply. Press the start
button SB, the contactor coil KM is energized, the three main contacts KM in the main circuit are closed, the power is turned on, and the motor rotates; release the start
button SB, the contactor coil KM is de-energized, and the three The main contact KM is disconnected and the motor stops. Fuses FU1 and FU2 are used for short-circuit protection of the main
circuit and control circuit respectively.
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