2nd October 2019


What is the need for starter in a DC motor?

The resistance should gradually cut in steps as the motor gains speed and develop back emf. In other words, the starter offers resistance to armature current during starting of dc motor only. Under normal working condition of dc motor , the starter is electrically out of armature circuit of the motor.

Also, why starter is used to start a motor?

The starter protects the armature of dc motor from getting damaged. As the speed of armature/motor build up, armature induced emf also starts building thus reducing the role resistance offered by the starter, hence requiring it to gradually reduce as the motor picks up full speed.
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