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
...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