Lay the stator core flat on the wire frame. The embedded wire must be inserted into the bottom of the groove along the burr direction of the wire core, and the length of both ends of the wire core is equal, and it is not allowed to be cut short. As shown in the figure:

Put the three-phase winding neatly at the left end of the iron core and the embedding tool neatly at the right end. The line ends of A, B and C are arranged by surface, bottom and surface.

The embedding process adopts either live slotting or dead slotting: 1.3. 1 Adopt live slotting process: put the slotted paper into the slot to be embedded, and put it into the first turn of phase A (phase A, with the thread end at the upper edge).

The upper binding wire moves from a straight line to the end (embedded in each slot is the same), and the lower one is screwed flat with the fingers of the left hand and inserted into the slot from the middle of the slot paper guide, and the right hand passes through the inner circle of the iron core, holding the right end of the coil, conveniently pulling it into the slot and inserting it into the covering insulation.

Extended data:

In salient pole winding, each coil (group) forms a magnetic pole, and the number of coils (groups) of the winding is equal to the number of magnetic poles. In salient pole winding, in order to keep the polarities n and s of magnetic poles away from each other, the current directions in two adjacent coils (groups) must be opposite, that is, the injection mode of two adjacent coils (groups) must be tail-to-tail and head-to-head (electrician's terminology is "tail-to-tail, head-to-head"), that is, the reverse series connection mode.

In the common pole winding group, each coil (group) forms two magnetic poles, and the number of coils (groups) of the winding is half of the number of magnetic poles, because the other half of the magnetic poles are formed by the magnetic lines of the magnetic poles generated by the coils (groups).

In common-pole winding, the polarity of magnetic poles formed by each coil (group) is the same, so the current direction in all coils (groups) is the same, that is, the injection mode of two adjacent coils (groups) should be tail-to-tail (called "tail connection" in electrician's terminology), that is, the sequential series connection mode.

Baidu encyclopedia-coil winding