The commutator optimization due to electrically caused wear

Commutator motors are widely used in several consumer appliances and electric drives. Therefore they are economically very important for their numerous productions. Furthermore, due to their high shaft speed they achieve high power per a unit of volume, and they are produced at relatively low costs for a unit of power. But these relatively powerful and economic machines have mechanical commutating devices that are vulnerable to electromechanical wear caused by electric phenomena accompanying electric current commutation. The paper deals with the commutator optimization due to the changes in magnetic and electric energy and the switching phenomenon during the commutation process of rotor coils. The aim of the presented research is to minimize the electrically caused wear of mechanical commutators of universal commutator motors.