A-Turbo soft starter adopts electronics technology, microprocessor technology and modern control theory to efficiently limit start voltage of asynchronous motor. The equipment could be widely applied to fan, pump, conveyor and compressor and other heavy load equipment. It is an excellent product to substitute traditional startup equipments such as star/triangle transition, self-coupling voltage reduction, magnetron voltage reduction and so on.

Main circuit of the soft starter adopts 6 SCRs (anti-parallel connected in series) connecting with stator circuit of AC motor. Based on function of SCR electronic switch, the soft sta rter ma kes u se o f microprocessor to ad just trigger angle to change SCR’s conducting angle, so as to change motor input voltage value to realize the control of motor soft start. When completing the start, the o utput of soft starter will reach rated voltage. Then conta ctor KM which controls three-phase bypass will switch on to make motor run into the grid.