Fcma Soft Starters For Induction Motor

We make and supply of FCMA Soft Starters For Induction Motors in Khed, Maharashtra, India. The harmonic free, rugged magnetic soft starter for motor starting. FCMA is an acronym for flux compensated magnetic amplifier which is basically a modulated inductive impedance. When connected in series with the motor the FCMA reduces the starting current to a low value. The impedance of FCMA decreases with increasing motor speed by flux compensation thus incrementing the motor voltage sleeplessly to keep the current constant till motor reaches 90% speed (pullout torque). The motor current now drops to its normal value depending upon the load demand. The motor voltage increment is typically from 50% at start to 95% at full speed steplessly. Ideally suited for centrifugal loads The FCMA is further bypassed by a suitable contactor so that the motor runs at line voltage. The starting current and voltages are purely sinusoidal without harmonics as the flux compensation technology operates the FCMA core always in the linear unsaturated zone The starting current value is the minimum theoretical value as governed by the motor torque margin and load torque demand. Accelerating torque is always maintained larger than 10% throughout the speed range to avoid critical speed resonance.