Answer / n rajesh

AC and DC drives are used for smooth speed control
purpose.Now a days A.C drives are prefered due to low
maint.

Answer / rakesh

AC & DC Drives are used in traction system for example in
Railways. In railways for the regenertion braking system.

Answer / ashhad khan

first of all why do we call it a drive instead of just calling it as a motor . its because ac drive or dc drive is a combination of a controlling circuit and a motor. so that we can control the speed, direction and regenrative power.

and these drives are mostly use in railways thats why sometime they will be called as traction motors.

controlling circuit used is a combination of thyristors and diodes so as to change the voltage or frequency to control the speed of ac drives.

by ashhad khan u can ask me more on ashhad18@gmail.com

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