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电机炭刷磨耗的增加是整流子电机、特别是电机功率增大和转速提高的严重障碍。在使用滑环电机时也发生炭刷的运用困难,例如大功率同步发电机的激磁电路。在使用整流子及滑环时,炭刷的磨耗过程是类似的,因而对功率为1000瓩的同步发电机进行了研究,由柴油机驱动,其青铜滑环直径为300厘米,转速为1500转/分(相应的圆周速度为22米/秒),炭刷的接触面积为32×16厘米~2,滑环宽度为40厘米。
The increase of motor carbon brush wear is a serious obstacle to the commutator motor, especially the motor power increase and speed increase. The use of carbon brushes is also problematic when using slip ring motors, such as excitation circuits for high-power synchronous generators. The use of commutators and slip rings, carbon brush wear process is similar, so the power of 1000 同 of the synchronous generator was studied by the diesel engine, the bronze slip ring diameter of 300 cm, the speed of 1500 rev / Min (corresponding peripheral speed of 22 m / s), carbon brush contact area of 32 × 16 cm ~ 2, slip ring width of 40 cm.