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How does a motor drive sometimes cause the failure of motor windings?

April 26, 2017cause drive failure motor windings

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How does a motor drive sometimes cause the failure of motor windings?

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The winding insulation has inter-turn capacitance. The current that flows in this insulation can cause it to fail. It is also possible that the motor cable is acting as a transmission line to cause an overvoltage at the motor terminals.