Two-layer Winding

Two-layer Winding Points : Two-layer Winding In this, type of’ winding, there are two conductors or coil sides per slot arranged in two layers. Usually, one side of every coil lies in the upper half of one slot and other side lies in the lower half of some other slot at a distance of approximate 1 one pitch away. The transfer of the coil from one slot to another is usually made in a radial plane by means of a peculiar bend or twist at the back end. Such windings in which two coil sides occupy each slot are most commonly used for all medium-sized machines. Sometimes 4 or 6 or 8 coil sides are used in each slot in several layers because it is not practicable to have too many slots. The coil sides, lying at the upper half of the slots are numbered odd i.e. 1, 3, 5, 7. etc. while those at the lower half are numbered even i.e; 2, 4, 6, 8, etc.