In case of wave wound generators, the average pitch is
In case of wave wound generators, the average pitch is May be Odd or Even.
the average pitch of a wave winding must be an integer and cannot be a fraction. In a wave winding, the armature conductors are grouped in a series of waves, and the average pitch is the distance between the centers of adjacent conductors in the same wave.
Since each wave contains an odd number of conductors, the average pitch must be an even number in order for the winding to close properly.
However, the average pitch can also be an odd integer as long as the total number of conductors in the winding is an even integer.
For example, in a wave-wound generator with 30 armature conductors, the conductors might be arranged in six waves of five conductors each. The average pitch of this winding would be the distance between the centers of conductors 1 and 6, or conductors 2 and 7, or conductors 3 and 8, etc. This distance would be an odd integer, such as 5 or 7 or 9, but since the total number of conductors is even, the winding will close properly.
In any case, the average pitch of a wave winding must always be an integer, whether it is odd or even, and cannot be a fraction.