A soft starter is a power electronic device used to start a high-speed AC motor without generating an uncontrolled source current. It is an advanced motor protection device that is widely used in the production industry.

Compared with the traditional starting method, the soft starter starts the motor slowly, so that it is controlled by the current and voltage at the start. This control system can not only reduce the starting current and voltage changes at the start, but also reduce the impact and mechanical vibration, extend the service life of the equipment, and improve the efficiency of the automation level.

In addition, the soft starter has many other advantages, such as saving energy, reducing noise and damage, reducing costs, etc.

In short, a soft starter not only protects the motor, but also increases production efficiency, making the development of production sustainable. It is a large part of modern industrial production and is widely used.