变频调速电动机绕组损坏原因分析

Analysis on Damage Causes of Variable-Frequency Adjustable-Speed Motor Windings

变频调速电动机绕组比普通电动机更易产生匝间、相间短路、接地等故障,破坏绝缘。这与电动机的绝缘结构、变频器性能、控制方法的选择、使用维护等有直接关系。通过分别对其进行分析,找出原因并提出改进建议。

speed motor are faults, and then Compared with common motors, the windings of variable-frequency adjustable- more likely to generate faults such as turn-to-turn, phase-to-phase and earthing damage insulation system. It is directly related to insulation system, frequency converter performance, operation and maintenance, and choice of control method. This paper respectively analyzes them, found out the causes and points out improvement suggestions.