Re: phase conversion

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Gerry Reynolds" <gerryreynolds-at-earthlink-dot-net> 

One thought, maybe, is to drive a single phase moter with your single phase
that is mechanically coupled to a three phase motor that acts as a generator
giving you 3 phase output.

Gerry R


 > Original poster: Ed Phillips <evp-at-pacbell-dot-net>
 >
 > Tesla list wrote:
 >  >
 >  > Original poster: Matt <fox-at-woozle-dot-org>
 >  >
 >  > I seem to remember a post some time about being able to get three pahse
 >  > power from single phase power by wiring up 3 or 4 transformers in some
 >  > fashion. I have looked high and low but can not seem to find it. maybe
i'm
 >  > just out of my mind? can someone please point me in the correct
direction?
 >  >
 >  > -matt
 >
 > No way with transformers only.  You can change any polyphase form into
 > any other with transformers, but with single phase there's nothing you
 > can do.  It is possible to use capacitors to provide phase lead, but the
 > phase is load sensitive.  If you're trying to run a three phase motor on
 > single phase there is a way.  There are so called "phase convertors"
 > which use a capacitor start arrangement and then switch the capacitor
 > out of the circuit once the motor is running.
 >
 > Ed
 >
 >