Variable Speed Frequency Inverters can control magnetic field current and torque current to obtain a smooth run and provides low noise operations. The Variable Speed Frequency Inverters have built-in DC reactor for the purpose of improving power factors and is equipped for all series of 55 KW and above. The Variable Speed Frequency Inverters are energy saving and have proportional integral derivative control and slip compensation function. Variable Speed Frequency Inverters are manufactured by Power Tech System.
