Low Voltage Solid State Starter with Competitive Price 

Application

It applicable for non-frequent start for AC 50Hz (60Hz), voltage is 380v-660V, rated power 2.2-530KW and under three-phase squirrel cage induction motor.

Working Principle

Adopt three pair anti-parallel thyristor string connected onto AC motor stator loop. Using thyristor electronic switch function, through the microprocessor control its triggering angle variation to change thyristor open degree, thus to change motor input voltage size, in order to the purpose for control motor soft start. After starting the soft starter output reached rated voltage, at this time will be control three-phase bypass contactor KM suction close through bypass control output signal, the motor input running of power grid.

Performance and Features

1. Start mode: choose different start mode and parameter set in terms of load features, making the best effective start of motor;

2. High technical characteristic: control circuit used high performance microprocessor, to ensure operative fast reliability;

3. High reliability: master control board by high temperature loop around and vibration test in 72 hours, thereby assure the high reliability of outgoing product;

4. Optimized structure: unique compact modular construction and connection type of up incoming and down outgoing line, the control panel used advanced SMT paster technique, less volume, to convenient integration and whole set for customers;

5. Set feature service of keyboard: convenient and visual operating display keyboard, according to different load to set and modify of starting, stopping, running, protecting parameters;

6. Protective function: soft starter has protective functions for motor starting process phase lack, overload, overcurrent and starting time overrun;

7. Rated output current (set power): when soft starter nominal power greater than actual load power, can modify soft starter actual output current within limits, making it matched with actual load current, to assure soft starter output power match with actual load power.