On Tue, 12 Apr 2011 01:21:40 -0500, sno wrote:
On 4/11/2011 6:16 PM, zzzzzzzzzz wrote:
On Mon, 11 Apr 2011 17:54:33 -0400,
wrote:
wrote in message
...
On Apr 11, 1:32 pm, wrote:
Not he's got it right except for the fact that allr otating electric
lmachinary is AC.
Those two quite common examples seem to refute your
absolute determination that ALL rotating electric machinery
is operated with AC motors...
How so?
Look deeper in the motor. It's all AC on the inside. ;-)
I think you are pushing it....the brushes on a dc motor "guide" the dc
to different windings.....it is still dc...
No, it most definitely is *not*. Turn the motor to the next commutator step
and you'll see that the current reverses in the winding.
In an ac motor the windings are generally in parallel...all the ac is
applied at one time....
I think I got that right....is a long time since I covered motor
theory..grin...the ac is not "chopped up"....or guided anywhere....
That's why there are no brushes in AC motors? ;-)
You could say that all electric motors operate the same....as they all
depend on magnetism (all generally used motors...there are some operate
on static electricity, etc)
have fun...sno
....and you need a rotating magnetic field. That is, you need AC. ;-)