Are you clear about the proper terminology of windings for three-phase asynchronous motors? Let Dalan Hydraulic Motor Xiaobian tell you one by one!
1, coil (group) lead line
1 Each coil (group) has two lead wires, which are called the head end and the tail end.
2 When weaving the wire, the coil (group) lead wire must be drawn from the side of the wire outlet of the stator. Usually, one side of the wire hole should be placed on the right side of the operator.
2, the upper and lower sides
1 two effective sides of one coil in a double-layer winding;
2 The effective edge embedded first is in the lower layer in the slot, called the lower edge or the bottom edge;
3 The other side is called the upper side.
3, floating edge and sinking edge
1 The single-layer winding has no layer in the slot, but the effective edge end embedded first is overlapped by the effective edge end embedded in the groove, so the effective edge embedded first is called the edge;
After the embedded edge floats on the surface, it is called a floating edge.
4, hanging edge
1 When the overlap method is used, the effective edge of the coil is first embedded in the groove, and the other effective edge is to be embedded in the rear edge of the groove or the front groove.
2 Before it can be embedded, in order to prevent it from rubbing against the core, it must be padded or hoisted, which is called the hem.
5, the embedded method
The inlay method refers to the embedding, the two effective sides of the coil are embedded in the corresponding two slots in the same batch, and the distribution of the winding ends is obviously "two planes" or "three planes".
6, retreat rule
1 When embedded in a side of a coil, and then embedded in the lower slot, it is a backward type.
2 When the wire is separately embedded, the stator of the motor is placed horizontally parallel to the front of the operator, and the coil is turned forward. The process of the rule is to retreat to the person.
7, overlap method
1Overlap method means that in the ruled line, one effective side of one coil is first embedded, and the other effective side is temporarily not embedded, when the lower layer side of the groove (for double-layer winding) or the front groove is edged (for a single layer) The edge can only be embedded after it has been embedded.
2 The distribution of the ends of the windings is hierarchically overlapping.
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