The Natural Philosopher wrote:
Chris J Dixon wrote:
Kevin wrote:

you have not done much research, most model boat motors are 5 pole
along with trains
http://www.zscale.org/articles/fivepole.html

In the model world, maybe, but in the real railway, DC Traction
Motors generally have an even number of poles, most commonly 4 or
6.

Chris
Its general to have an even number of fields or fixed magnet poles, and
windings as a multiple of three.

So it depends what we re talking about.

a 5 pole motor has 2 magnet poles and 5 windings & 2 brushes so bang
goes 3 phase theory
The normal cheapest electric motor you might find in e.g.an electric
drill will have two magnet poles and three wound armature segments.

Some of the motors I have have 12 wound poles wound as three phases, and
14 magnet poles. For example.





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Kevin R
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