[TheForge] Fwd: Shop tools & layount (3-phase converter)

Sun Jan 18 18:12:12 2004

I have a 5 HP phase converter. I run a 5 HP lathe and two 3 HP mills on it.
You only need a phase converter larger than the motor you are starting if it
has to start under a load like a compressor.
With my 5 HP phase converter, after starting my 5 HP lathe I could then
start a 10 HP motor.
As to electrical use, 3 phase motors are more efficient.
Darrell

http://www.machinemaster.com
----- Original Message ----- 
From: "Shannell Sugrue" <[email protected]>
To: <[email protected]>
Sent: Sunday, January 18, 2004 5:34 AM
Subject: Re: [TheForge] Fwd: Shop tools & layount (3-phase converter)

> I think you can run 2/3 to 3/4 of the power of your supplying motor. You
> mean electricity costs? Well figure how much it will cost to get 3 phase
> hooked up, then figure out how long that will pay the power bills for, for
> me it would be many years. 3 phase is cheaper per KW though but a phase
> converter is a quick and cheap way to run 3 phase machinery.
>
>
>
> > For a phase converter, don't you need the same size or larger motor than
> the
> > one you're trying to run in the first place?  Seems to me that the power
> > used would overcome the initial savings on the motor.
> >
> > Please tell me what I am thinking wrong.
> >
> >
>
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