【摘要】 阐述变频电机轴电压(流)产生机理及危害,介绍了实际应用中轴电压(流)限值和轴电流导致轴承失效的先期检测分析方法,并从电机本身角度出发介绍了防止变频电动机轴电流危害的措施。更多还原

【Abstract】 The cause and harmfulness of the shaft-current of the frequency-control motors are described,the maximum value of the shaft-current is introduced in the practice and predicated inspecting and estimating method preventing the bearing from being damaged is presented as well.The means to protect from motors’ damages taken place by the shaft-current is demonstrated at last in the pa-per.更多还原