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What is the use of commutator and brushes?
Commutator and Brushes The commutator on the DC generator converts the AC into pulsating DC. The commutator assures that the current from the generator always flows in one direction. The brushes ride on the commutator and make good electrical connections between the generator and the load.
What is the use of brushes in DC motor?
A carbon brush is a sliding contact used to transmit electrical current from a static to a rotating part in a motor or generator, and, as regards DC machines, ensuring a spark-free commutation.
What type of motor uses a brush commutator to operate?
DC motors can use either mechanical or electronic commutation. Brushed DC motors rely on the mechanical method, with brushes and a commutator, while brushless DC motors use electronic methods to achieve commutation.
What are the uses of commutator?
A commutator is a rotary electrical switch that periodically reverses the direction of the current between the rotor and the external circuit. The commutator was discovered by William Ritchie and Hippolyte Pixii in 1832. Commutators are used in DC machines ( DC motors and DC generators) as well as in universal motors .
What are the purpose of brushes in a generator?
A brush is a device which conducts current between stationary wires and moving parts, most commonly in a rotating shaft. Typical applications include electricmotors, alternators and electric generators. 1. Brushes are used to conduct current in the electric generator, be it either AC generator or DC generator.
What are the uses of brushes in a DC motor?
Brushed DC motors, featuring simple design and easy control, are widely used to open and close disk trays . In cars, they are often used for retracting, extending, and positioning electrically-powered side windows . The low cost of these motors makes them suitable for many uses.