"SRF" wrote in message
...

I'm setting up a hobby machine shop and am getting into the issue of 3
phase
motors. Most of the motors are going to be in the 1 to 3 horsepower
range.
For motors of this size, why would I want to have make three phase
power to
run these machines instead of just swapping out the motors for single
phase?

Thanks.
Steve.

Here's a site with some info.
http://www.processcontroltechnologie...seinverter.htm My only
experience is with the Toshiba S7. A very cool product, but probably in
the $800 range. This is the best I could do for a picture
http://www.lbelec.com/toshiba/drives.html It's the one shown in the palm
of a hand. Contact TK Electric at 702 293-2310 if you need more info.
Why would you want one? Smaller wire sizes, variable speed, variable
torque, slow startup, safety cutoffs, etc. Not really needed for
woodworking I don't think, and you wouldn't be able to make use of most
of the sophisticated programming anyway if you were running multiple
motors. Although if you have enough motors, perhaps adding one new
device would be easier than swapping them all.

Wayne