22/30/45/55/75kw online soft start cabinet high voltage solid state motor speed control cabinet 380V

1. Definition of soft start control cabinet

The soft start control cabinet is a widely used electrical control device that can be used to control various types of motors, such as AC motors, DC motors, etc.

2. Working principle of soft start control cabinet

The soft start control cabinet controls the voltage and current during the starting process through the built-in control protection system to prevent the motor from generating large current and torque when starting directly, causing problems such as equipment vibration, noise, and load separation. The principle of soft start in the soft start control cabinet is to reduce the starting voltage of the motor, gradually increase the voltage within a suitable period of time, control the growth rate of current and torque, and gradually start the motor to the rated speed. During shutdown, the soft-start control cabinet can also achieve soft stop, controlling the current and torque of the motor to gradually decrease to avoid inertial impact caused by sudden changes in the direction of the motor.

3. Application of soft start control cabinet

Soft start control cabinets can be widely used in various types of electrical control systems, such as conveyors, fans, compressors, water pumps and other equipment. In some special occasions, such as occasions where the motor needs to be started and stopped repeatedly or where the load changes significantly, the soft start control cabinet plays a more significant role.