Working principle of 1. soft starter -- Brief Introduction
Soft starter is a new motor control device, which integrates soft start of motor, soft stop, light load, energy saving and various protection functions. It is called Soft Starter abroad. Its main structure is a three-phase anti parallel thyristor connected to the power supply and the controlled motor and its electronic control circuit. Different methods are adopted to control the conduction angle of the three-phase anti parallel thyristor, so that the input voltage of the controlled motor varies according to different requirements, and different functions can be realized.
Working principle of 2. soft starter -- starting mode
The soft starter is a kind of novel control equipment of motor soft start, soft stop, light load energy-saving and various protection functions in one of the domestic soft starter in peace hps2 series soft starter is most famous, and the main structure is connected in series between the power supply and the controlled motor three opposite parallel thyristor and its electronic control circuit. Soft starter generally have the following boot mode:
(1) constant current soft start of slope;
(2) ramp soft start up;
(3) step start;
(4) pulse shock starting.
Working principle of 3. soft starter
