Treatment method for winding short circuit of three-phase asynchronous motor

(1) The short-circuit point is at the end. The shorts can be isolated with insulation, or the insulation can be rewrapped, painted and rebaked.

(2) Short circuit in the wire slot. After softening it, find out the short-circuit point and repair it, put it back into the trunking, and then paint and dry it again.

(3) For each phase winding with less than 1/12 short-circuit turns, cut off all the short-circuit lines when connecting the turns in series, and connect the conductive parts to form a closed loop for emergency use.

(4) When the number of turns at the short-circuit point of the winding exceeds 1/12, it must be completely removed and rewound.