View Single Post
Old 06-16-2015, 03:39 AM
bistander bistander is online now
Gold Member
Join Date: Apr 2015
Posts: 1,413
Originally Posted by mbrownn View Post
Correct, The reason they put an odd number of coils in the armature is to prevent harmonics and resonances.
On the 4 pole simplex wave winding (a closed 2 path circuit), the odd number is a geometric requirement. There may be other benefits as you mention. Self equalization is another benefit over the lap winding (4 paths and even number of coils and comm segments). This eliminates the need for equalizer connections behind the commutator.
Reply With Quote