CAD CAM EDM DRO - Yahoo Group Archive

Re: rotary phase converter

Posted by k8zre
on 2002-05-19 16:49:24 UTC
Thank-you, gentlemen, for your comments. They are very much appreciated. I will be working with some of the suggestions given.
...Richard in Michigan

> >I need to generate 460v 3 phase from 220v 1 phase line. I have read
> >prior posted comments on rotary phase converters.
>
> You need a transformer that will step 220 up to 460, and a 460V three phase
> motor of power similar to your mill, or anyway about half that rating.
> Transform the 220 to 460, then supply that to any two legs of the motor.
> Kick-start the motor. There will now be three-phase 460 V on the three
> motor terms, which you wire to your milling machine power switch as always.
>
> To get fancy you would want a starter circuit, but I get by with just
> kicking at a pully mounted on the motor. My idler motor is 1 Hp, mill is 3
> Hp. It has always worked fine, doesn't overheat idler.
>
>
> Regards, Hoyt
>
>
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Discussion Thread

k8zre 2002-05-18 18:08:02 UTC rotary phase converter Tim Goldstein 2002-05-18 18:19:43 UTC RE: [CAD_CAM_EDM_DRO] rotary phase converter Raymond Heckert 2002-05-18 20:03:49 UTC Re: [CAD_CAM_EDM_DRO] rotary phase converter Jon Elson 2002-05-18 23:25:55 UTC Re: [CAD_CAM_EDM_DRO] rotary phase converter bjammin@i... 2002-05-19 03:42:32 UTC Re: [CAD_CAM_EDM_DRO] rotary phase converter k8zre 2002-05-19 16:49:24 UTC Re: rotary phase converter