Phase converters?

[hankj]

static converters are more effecient at end result. .

That confused me.

I have a few years under my belt in industrial electrical work, too, and I've always thought that a rotary converter was more efficient, as it delivers a waveshape closer to 3-phase due to the generator effect of the idle motor.

I'd appreciate it if you would elucidate me on the engineering, as I have apparently been misguided for a long time!

Hank

[Portable Welder]

I ran a phase converter in my shop for 9 years, I ran a big grinder off of it and a 2500 LB. drill press.

I built the converter from a 3 phase Y-wound motor. I paid $35.00 for the used motor and a little for the wiring and it worked great for a cheap price.

In my current shop I have a static phase converter which I am running a small drill.

Static converters run one machine while the Y- wound rotary converters will run multiple machines.

If your looking for cheap you can send me your fax# and Ill draw you a diagram as to how to do it.

The most user friendly is a static converter

[Ezryk]

http://metalwebnews.com/howto/phase-...converter.html

http://www.homemetalshopclub.org/pro...nv/phconv.html

both useful links

[Showdog75]

I'll third the VFD , I have one on my Rockwell vertical mill . A VFD will also give you variable speed which is really nice , sure beat's changing belts . You need to get one that is specific to the horsepower of your electric motor[search ebay].