On Apr 10, 10:04 am, Rick Blaine wrote:
deke wrote:
Most motors can NOT be reversed.

I would qualify that. I think if they are designed to run in reverse, they will
have separate windings for each direction, with only one of the windings
energized at a time.

Vague memories... if it has no windings in the rotor, as many don't,
it just runs on phase lag and hysterisis or some such and is
unidirectional. If there are windings in the stator and the rotor,
then presumably they can be flipped relative to each other... don't
know how relevant each type is to the size of motor that might be in a
house fan.