轴承抱轴模式下变频器保护失效的分析及处理

The cause analysis and rectification measures of no fault tripping in motor bearing-axle frequency converter

本文针对电动机轴承故障引发的半载负荷状态下变频器过电流保护缺失的问题进行原因分析并提出整改措施,通过技术改造可以避免电动机及拖动设备故障的进一步扩大,在电动机拖动设备管理行业具有推广意义。

This paper aims at the cause analysis and rectification measures for the lack of over-current protection of the frequency converter under the half load state caused by the motor bearing fault.Through the technical transformation,it can avoid the further expansion of the motor and the driving equipment fault,which has a wide promotion significance in the motor driving equipment management industry.