ELECTRICAL MACHINES

 Commutating pole winding.

 Both Compensating and Commutating pole winding.

 Auxiliary winding.

 Compensating winding.

 Reversing armature connection or field connection.

 Adding resistance to field circuit.

 Interchanging armature and field connection.

 Reversing supply connection.

 motor will not run.

 it will run in same direction.

 it will run in same direction by slowly.

 it will run in opposite direction.

 back emf falls and line current increases.

 back emf increases but line current falls.

 both back emf as well as line current increase.

 both back emf as well as line current fall.

 start haunting.

 run at very high speed.

 burn.

 run at very low speed.