
AC Machine Windings 2-11
Example 2.1
Let us consider the winding layouts reported in Figure E.2.1.
The winding polarity and the winding coecient of these windings are
Winding A P = 1 q = 4 N
r
= 0 β
e
= 20° K
a
= 0.925
Winding B P = 3 q = 1 N
r
= 0 β
e
= 20° K
a
= 1.000
Winding C P = 2 q = 2 N
r
= 1 β
e
= 30° K
a
= 0.933
Winding D P = 1 q = 4 N
r
= 2 β
e
= 15° K
a
= 0.925
2.2.6 Airgap MMF Waveform Produced by a Single Conductor
In this section, the mmf distribution produced by a single conductor is analyzed. is particular wind-
ing structure can be considered as a theoretical case and it can be used as a starting point to develop
360°
(a) ...