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Old Sep 04, 2003, 02:00 AM
Allen Wilkinson
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n/a Posts
electric motor query

What is the difference, in terms of performance, between a single and a double wound electric motor ?
I presume that the double windings are in parallel and therefore half the resistance of a single wind (assuming that the same gauge of wire is used in both cases). That being the case the double wound motor will draw twice the current and, in theory, produce twice the torque.
Is this correct ?

AW.

Old Sep 04, 2003, 02:00 AM
The Natural Philosopher
Guest
n/a Posts
Re: electric motor query

Allen Wilkinson wrote:

> What is the difference, in terms of performance, between a single and a
> double wound electric motor ?
> I presume that the double windings are in parallel and therefore half
> the resistance of a single wind (assuming that the same gauge of wire is
> used in both cases). That being the case the double wound motor will
> draw twice the current and, in theory, produce twice the torque.
> Is this correct ?
>
> AW.


Yes. My understanding is that they can get more wire into the armature
by using two thinner bits than one thick bit. i.e. if the armature slot
is not a complete number of wire diameters wide, space gets wasted.
There is also some guff about better efficiency that sounds to me
similar to HiFi blah about gold plated woven multistrand loudspeaker
wires

Old Sep 04, 2003, 02:00 AM
mattheworme
Guest
n/a Posts
Re: electric motor query


"Allen Wilkinson" <Awilki@tesco.net> wrote in message
news:m5h5b.84$qL6.81572@newsfep1-win.server.ntli.net...
What is the difference, in terms of performance, between a single and a
double wound electric motor ?""



Absolutely nothing. It is just easier to wind. multiple strands are easier
to handle. i.e., 3 strands of AWG23, instead of one of AWG20


Old Sep 04, 2003, 02:00 AM
Chris Dugan
Guest
n/a Posts
Re: electric motor query

"mattheworme" <mattheworme@sbcglobal.net> wrote in message
news:Ibs5b.15468$n94.1936@fed1read04...
>
> "Allen Wilkinson" <Awilki@tesco.net> wrote in message
> news:m5h5b.84$qL6.81572@newsfep1-win.server.ntli.net...
> What is the difference, in terms of performance, between a single and a
> double wound electric motor ?""
>
>
>
> Absolutely nothing. It is just easier to wind. multiple strands are easier
> to handle. i.e., 3 strands of AWG23, instead of one of AWG20
>
>

Pardon my French Allen... but b""locks!

It makes one hell of a difference to the perceived performance of the motor,
if it didn't make any difference then how come us R/C car boys have
continued to use a varety of different wind types singles, doubles, triples
etc. over the years to tune the cars for varying degrees of feel?

Usually singles and doubles for short tracks where you need punch i.e.
torque or using quads and quins for smooth acceleration and slightly more
top end on loose surfaces. The proliferation of different winds is beginning
to die out now technology in the speed controllers is providing some of this
fuctionality i.e. you can dampen down the throttle response if it is too
punchy and brushless motors are just beginning to take root which excel in
efficiency and lifespan compared to brushed motors.

Chris


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