What is the function of brushes?
1 Answers
Brushes are used to connect the circuit between the field winding and the armature winding, and to maintain a fixed direction of the electromagnetic torque on the armature shaft. Below is relevant information about brushes: Introduction to brushes: Brushes are an important component of electric motors, responsible for conducting current between rotating parts and stationary parts. Since they are mostly made of graphite, they are also called carbon brushes. Materials of brushes: Most brushes are made of graphite. To enhance conductivity, some are made of copper-graphite composites. Graphite has excellent conductivity, is soft in texture, and wear-resistant. Brushes can be used in DC motors or AC commutator motors, such as in general electric tools like hand drills and angle grinders.