RE: [CAD_CAM_EDM_DRO] Phase Converter

Hi Terry -

I just went through this to get 3 phase from 220VAC @ 60Hz. I
used a 7.5HP idler motor, and I'm operating a 5HP lathe. I found
everything I needed at these two links:

http://www.metalwebnews.com/howto/ph-conv/ph-conv.html
http://www.homemetalshopclub.org/projects/phconv/phconv.html

I used the self-starting circuit with a safety relay, and I'm very
happy with the results. I ended up having to use run capacitors
to balance the phases, and bypassing the lathe's overload relay,
but I am able to get 2500 rpm with slow blow fuses.

You can contact me offlist if you need more help.

Regards,

Carlos Guillermo
VERVE Engineering & Design

-----Original Message-----
From: James Owens [mailto:wotisname@...]
Sent: Monday, March 25, 2002 1:48 PM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] Phase Converter

Hi All,

Is there anyone on this list that can help me with a diagram for a
phase
converter to run my CNC machines bearing in mind I live in England
where the
mains power is single phase 240 volts AC @ 50 hz. I have a large 3
phase
motor that can be used.

Regards,

Terry