Saturday, June 4, 2011

Commutator ?

What Is Commutator?



Commutator:
Commutator is an electric switch that is used
 in motors and generators.The basic purpose 
of commutator switch is to reverses a direction 
of a current ,rotor in  motor changes it direction
 when current is changed in motors.Commutator 
changes its direction of current between rotor and 
an external  circuit.Torque is produced in motor 
through commutator by  changing a direction of 
current and in generator a steady dc 
current is produced.

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