What is the advantage of AC drive over DC drive motor?
The construction of 3-phase AC motor is simpler than that of a shunt wound or series wound motors and by construction it doesn’t require collector ans carbon bushes and doesn’t need to be ventilated from inside. As a result 3 Phase AC motors are maintenance free, Can be fully enclosed to give IP54 protection against dust and water. Further its troque-speed characteristics is such that it is possible to have high torque in low speed range resulting in more performance efficiency.
