Common failures of motor iron core
ⅰ. The insulation damage between silicon steel sheets causes short circuit between silicon steel sheets;
ⅱ. Slack iron core caused by poor operation of tight connection and motor vibration;
ⅲ. When the old winding is removed improperly, the silicon steel sheet is opened out;
ⅳ. Due to coil short circuit or iron collision, the iron core slot teeth are destroyed.