Question

What is the function of the split rings of an electric generators and also discuss the function of the brushes?

Answer 1

Split rings are used in rotating electrical assemblies to make a continuous electrical connection between stationary and moving conductors. This enables the stationary power source to transmit electrical power to the rotating component.

Basically, a slip ring is a band of electrically conductive material mounted on a shaft. Although insulated from the shaft itself, the slip ring is connected to the rotor or rotating assembly through windings or other electrical connections. The outer part of the slip ring is in continuous sliding contact with stationary brushes or other stationary conductors.

The primary function of carbon brushes is to deliver or collect current from a rotating part of an electric machine. The brushes should maintain a close contact with rotating part (commutator or slip rings) in order to ensure sparkles operation without wearing itself too quickly.