Action of Commutator

For a four pole, 16 slot armature with two coil-side/slot having wave connected progressive winding has single turn coils. The commutator pitch for the machine should be

Under commutation results

Inductive kick causes

A 200 V dc machine working at rated speed. Voltage across the commutating terminals should ideally be

While the operation of dc motor, there are sparkings at the commutation observed. These can be happening due to

Inductive kick is

Commutator action is analogous to _________ in analog electronics.

The armature rotation in the dc machine and the magnetic field are independent of each other and obey laws of conservation of energy.

The brushes in dc machine are normally placed electrically in interpolar region, to

For a four pole, 16 slot armature with two coil-side/slot having lap connected progressive winding has single turn coils. Then number of commutator segment is

Commutator is a

Operation of a dc machine will