Motor carbon brushes
Motor carbon brush has four functions:
1, external currents by a motor brush added to the rotation of the rotor;
2, static charges through the brush on the shaft into the Earth;
3, changing the direction of current;
4, into the shaft protection device, provides measurement of rotor grounding protection, positive and negative voltage to ground of the rotor.
Actually, the commutator is also determined by the brush and the reversing loop, carbon brush is a brush.
According to the carbon brushes of the motor using the object can be divided into:
1, turbine generator brush;
2, rolling motor brush;
3, brush traction motors;
4, AC motor brush;
5, aircraft motor brush.