"The Natural Philosopher" wrote in message
...
Dave Plowman (News) wrote:
In article ,
The Natural Philosopher wrote:
The commutator is to ensure the field
in the rotor is aligned wrt the stator to provide continuous torque.
Not sure where you get 3 phase from.

Each winding gets an AC signal.

No - it gets switched polarity DC. A different thing entirely.


NO, it is true alternating current in the meaning of the term. Current
that has an average value of zero, but has at any given time, a value that
is not zero.


Err no, it's *an* alternating current in *your* meaning of the term "True"
alternating current is that whis is assumed in AC theory and engineering and
in the design of AC motors and equipment and is sinusoidally varying.


--
Bob Mannix
(anti-spam is as easy as 1-2-3 - not