Power cable misconnection detection method and apparatus

摘要

A power cable miswiring detection method and its apparatus are disclosed. A method of detecting a power cable misconnection of a control motor includes the steps of: (a) confirming a change in load angle between a rotor system and a rotor of the control motor in accordance with current vector control of the control motor; And (b) determining whether the power cable of the control motor is misconnected by checking the stator three-phase current frequency according to the change in the load angle.