Re: [CAD_CAM_EDM_DRO] power supplies form those 24v transformers

Les,
Thanks for the response. I'll be looking forward to a schematic when
you post it, but some of the stuff, you're going to have to spell out in
English. I would have no idea what an "inrush control" is. I know about
machine shop, conveyor systems, and computers, but not great with
electronics. It might be a while before I can get to my project, since I'm
having half a knee replaced in about 2 weeks.

Marv Frankel

----- Original Message -----
From: "Les Watts" <leswatts@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Sunday, January 19, 2003 10:27 AM
Subject: Re: [CAD_CAM_EDM_DRO] power supplies form those 24v transformers


> Marv,
>
> I think several little transformers would tend to stay cool
> pretty well due to the increased surface area/volume.
> But I have read that winding hot spots are usually the thing that
> thermally limits them if they are typically designed.
>
> But if that voltage is too high it's a no go.
>
> If it turns out to be ok I can draw up a schematic and post
> on my site if someone hasn't done that already.
>
> This is a big supply and should be enclosed in a vented box.
> It must have some turn on inrush control as well.
> It's practically an arc welder. Make a mistake and it will be!
>
> Les
> Leslie Watts
> L M Watts Furniture
> Tiger, Georgia USA
> http://www.alltel.net/~leswatts/wattsfurniturewp.html
> engineering page:
> http://www.alltel.net/~leswatts/shop.html
> Surplus cnc for sale:
> http://www.alltel.net/~leswatts/forsale.html
> ----- Original Message -----
> From: "Marv Frankel" <dcdziner@...>
> To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> Sent: Sunday, January 19, 2003 1:03 PM
> Subject: Re: [CAD_CAM_EDM_DRO] power supplies form those 24v transformers
>
>
> > Les,
> > I've been following this thread with interest, and asked the
> > originator for a schematic, using two of the 24V transformers. I also
> looked
> > into the www.mpja.com web site, and saw a 48V @ 10A, and a 75V @ 6.6A
> > available, but at a much greater cost. Would mounting 4 or 6 of the 24V
> > units in one case require a fair amount of ventilation, or wouldn't
there
> be
> > that much heat generated?
> >
> > Marv Frankel
> > Los Angeles
> >
>
>
>
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