轴电流造成高压变频电机轴承烧损及处理

Damage of the Bearing Caused by Shaft Current and Its Treatment in the High-voltage Frequency-control Motor

通过对某水泥厂高压变频电机轴承过热故障的分析与处理,阐述了轴电流的产生原因、危害及防护方法。

Through analyzing the overheating of the bearing on the HV frequency-control motor in the cement factory, why the shaft current generated and the damage occured was described as well as the relevant protection measures should be taken.