Pole Winding with Half Turns

For some large machines, a half turn may be included due to too few turns per pole. When the number of turns per pole is an integer number, the number of conductors per pole is an even number with equal conductor number at both pole sides. Therefore, the two terminal leads of one pole coil are at the same axial side (or at different pole sides), as shown below.

When the number of turns per pole includes a half turn, the number of conductors per pole is an odd number. In this case, one pole side has one more conductor than the other pole side, and the two terminal leads of one pole coil are at different axial sides (or at the same pole side), as shown below.