What happens if the motor carbon brush is broken?

1 Answers
EloiseDella
07/30/25 8:37am
If the motor carbon brush is broken, it will cause the starter motor to fail to rotate or rotate weakly. The following is a related introduction to carbon brushes: 1. Definition: Carbon brushes, also known as electric brushes, are widely used in many electrical devices as a type of sliding contactor. Carbon brushes are devices that transmit energy or signals between the fixed and rotating parts of motors, generators, or other rotating machinery. The materials used in carbon brush products mainly include graphite, impregnated graphite, and metal graphite. 2. Function: They transmit external current (excitation current) through the carbon brush to the rotating rotor (input current). They also connect the main shaft (ground) to the protection device to provide rotor grounding protection and measure the positive and negative voltages of the rotor relative to the ground.
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