INSULATION DEFECT DETECTION METHOD AND DETECTION SYSTEM FOR MAGNET WIRE COATING, MANUFACTURING METHOD FOR ELECTRIC MACHINE, AND ELECTRIC MACHINE

摘要

This insulation defect detection method for magnet wire coating comprises: a conveying step S01 for conveying a magnet wire (2) in a line direction; a first discharge detection step S02 for applying an AC voltage to a measurement point on the magnet wire (2) during conveying and detecting a first discharge; a second discharge detection step S03 for applying an AC voltage to the measurement point on the magnet wire after the first discharge is detected, and detecting a second discharge; and determination steps S04-S06 for comparing the first discharge and the second discharge, and determining whether there is an insulation defect in the magnet wire coating.