Question
Sat July 30, 2011 By: Pooja Pujar

what is a commutator? what are its uses properties?

Expert Reply
Sat July 30, 2011

A commutator is a rotary electrical switch in certain types of electric motors or electrical generators that periodically reverses the current direction between the rotor and the external circuit. In a motor, it applies power to the best location on the rotor, and in a generator, picks off power similarly. As a switch, it has exceptionally long life, considering the number of circuit makes and breaks that occur in normal operation.

 

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