purchase of equipments for industrial drives and control lab , purchase of equipments for industrial drives and control lab , vfd drive speed control of induction motor using vfd speed control of induction motor by using vfd ac drive setup with three phase squirrel cage induction motor 0.5hp/220v/1440rpm this unit consists of teslim make igbt based 3-ph v/f drive suitable for 0.5hp/230v induction motor the ac 1-phase input terminals, motor output terminals points are brought out on the front panel. a 2 pole /6 amps mcb is provided to switch on/off the ac mains supply to the unit and also for protection. the drive has the facility to change the frequency with constant v/f (variable voltage variable frequency) to vary the speed of the induction motor since the speed is directly proportional to the frequency. voltage, output current and frequency. switch for forward and reverse direction of rotation. => limited