Softstarter for 75KW electric motors
FWI-SS3 3-phase AC380V 50Hz without built-in by-pass contactor
A soft starter uses Silicon Controlled Rectifiers (SCRs) or Thyristors to control the voltage applied to the motor hence the torque during starting or stopping of the motor.
Through these semiconductor devices, the soft starter is able to smoothly ramp up the motor voltage from a set value to the rated value and vice versa over a specified period of time which is also controlled through the soft starter. This eliminates any current transients, high torque pulsations and the heat buildup thereby extending the service life of the motor. The voltage dip in the supply also gets eliminated.
The soft starter is ideal for machines with large motors which are started or stopped often as it’s more efficient and lowers the maximum demand at startup.
Torque control:The soft starter allows you to adjust the torque to accommodate different motor and load characteristics at startup allowing both loaded and unloaded starts.
Complete Protection Functions:Our soft starters offers full protection against offset voltage, under voltage, over voltage, three-phase unbalance and overcurrent as well as short-circuit current.
The Soft starter detects the feedback voltage of the motor, and achieves closed loop control, to ensure that the motor succeeds to start-up under different conditions, and contain the inrush current during startup.
This reduces the stress on the motor, increasing the lifespan of the service motor, as well as reducing your maximum demand amps on your electrical bill.
Soft stopping also solves the surging problem of the inertia of the machine being run when switching off machines.
With highly reliable components, and built in safety features, the soft starter increases equipment lifespan, as well as operator safety.
The Softstarter is to be matched with a squirrel-case asynchornous motor, matching the softstarter's capacity.
Working temperature -20ºC - 40ºC
When installing, ensure to install in a well ventilated area or enclosure, as there is heat generated by the softstarter.
Power supply - 3 Phase AC, 380V/480V, 50HZ.