
AC Machine Windings 2-31
b. Type B winding: the active conductors under a pole are connected both with conductors in
the previous and in the consecutive pole. In this case, the number of coil sets is equal to the
pole number, 2P (Figure 2.27b and c).
3. With respect to the winding realization:
a. Winding realized with coils (wires or bars with a small cross section), as shown in Figure
2.28a.
b. Undulating winding or winding realized with bars (single-layer winding with a single con-
ductor in the slot): this type of winding is used in machines with high currents and the con-
nections are progressive from one pole to the other, as shown ...