AC drives are used to stepless speed control of squirrel cage induction motors mostly used in process plants due to its ruggedness and maintenance free long life. AC drive control speed of ac motor by varying output voltage and frequency through sophisticated microprocessor controlled electronics device
DC Drive
Basic Operation A DC drive supplies voltage to the motor to operate at a desired speed. The motor draws current from this power source in proportion to the torque (load) applied to the motor shaft. 100% Speed, 0% Load
