Soft Starter

The high inrush current and mechanical jerks are the two main problems associated with the Induction Motor since the invention. The different reduced voltage starting methods like start/delta, Auto transformer and switched rotor resistance were used but never solved the issues satisfactorily.

Soft starter is a device which is used to smoothly start the 3-phase squirrel care induction motor. It provides a gentle ramp-up to full speed. Ramping up the initial voltage to the motor produces this gradual and smooth start, increasing the life of components and reducing the harmonic effect in the plant.

For the last more than three decades, Amtech is providing the solid state soft starters, the answer to the inrush currents and associated mechanical jerks.

Amtech's soft starter increases motor's lifetime by protecting it from electrical stresses by optimizing the starting currents. Your motor is safe thanks to the in-built protective functions which ensure complete motor protection.

The product embellishing the product portfolio is as follow,

Product Name Range Voltage
Axpert-OPTI torque Bypass Series 15…1065 A, 3.7…1000 kW (5…1340 HP) 200…690 V, 3-Phase, 50/60 Hz

Advantages with Amtech's Soft Starter

  • Reduces starting current peak
  • Limits disruption of power system
  • Eliminates mechanical starting shock
  • Extends motor life
  • Allows for more start/stop per hour
  • Replaces electromechanical starters
  • No moving parts that require maintenance
  • Eliminates Need for special dual wound motors
  • Internal bypass reduces the power losses