1. There is a short circuit at the front of the DC brushless motor. The motor should be connected, welded, and then wrapped with insulating material, covered with an insulating tube, wrapped up, and dried;
2. The broken cage phenomenon of the rotor of the brushless DC motor can be repaired by welding, cold welding or belt replacement;
3. For the breakpoint in the slot, the group elimination method can be used to find the breakpoint, and connect the breakpoint in the winding, and check the insulation before application;
4. If the winding is severely burned due to inter-turn, inter-phase short circuit and grounding, the winding should be replaced with a new one.
When repairing a brushless DC motor, you should combine the local actual situation, broaden your thinking, analyze step by step, and eliminate one by one until you find the cause of the failure.
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