Mike Marlow wrote:
Bill wrote:
Mike Marlow wrote:
Bill wrote:
Mike Marlow wrote:

If there
were ever a way to get him to just do something without all of the
questions, he'd be thrilled at what he learned and accomplished. I'd
actually love to see that on his behalf.

I figuring out, by myself, how one pole powered my 220v AC motor
yesterday. The analysis only took me about 45 seconds, but it took
me quite a few hours to prepare to do that 45 seconds worth of work.

Just a heads up - you do understand that circuit is a 230v circuit,
right? Both legs are powering your motor. Not trying to correct you
here, but that is an important aspect to understand when working
with this stuff.

That is what I expected too, and that is the reason I found it so
frustrating (since I had already accepted what you wrote as
fundamental). However I strongly believe it is wrong. One pole is
powering that 230v motor and its capacitor (I think you meant "pole"
rather than "legs" above). I think the experts use the term
"split-pole", although I couldn't locate decent reference online.
When I described the phenomenon as I saw it, Stormin' Mormon provided
me with the terminology.


Well - you can call it pole or leg - no matter. You can't power a 230v
motor with only one leg in US residential wiring. You have to send two 120
legs that are 180 degrees out of phase with each other - just as it comes in
from the transformer from the power company. You absolutely need two 120v
legs. Be very careful Bill - you are messing with stuff you do not
understand. As long as you make sure the breaker is off, you will be fine.
Then - just hook everything up the way it all came out. It is clear you do
not understand the electricity you are working with and that's not an
insult, but it does mandate expressing caution.


I was just previewing a book on motors at Half Price Books, in a chair.
And it revealed that the phrase I was looking for is "phase-split" not
"pole-split" as SM suggested. Evidently the capacitor causes a
90-degree phase shift from a single pole. Do you know alot about that
stuff?

Yes, I can wire the motor from previous connections (but I am still
trying to understand anyway). BTW, the old motor had 3 wire and the
new one has 4, and I still understand what I needs to do to replace the
motor. I still believe that the motor is running from 1 pole, not two,
and the wiriing diagram seems to support that. I suggest that the phase
shift needed is coming from the capacitor. Are you sure I'm wrong and
you're not? I don't want you to end up with egg on your face.

Bill