Re: variac voltage out (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Wed, 13 Jun 2007 21:54:34 -0400
From: Scott Bogard <teslas-intern@xxxxxxxxxxx>
To: tesla@xxxxxxxxxx
Subject: Re: variac voltage out (fwd)

Well then,
     If that would not work, would it be possible to run something like say, 
a distribution transformer, which needs 240V in, off a beefy 120 variac put 
through a 2/1 potential transformer (I'm not sure if that is the correct 
term for them, but I have seen these transformers at work that simply turn 
120 into 240, or 480, or 6 hundred something and vice-versa), (this is all 
theoretical by the way, I don't have a pole pig, "yet").  Or, scenario 2, 
say perhaps, that one has a 240 volt source, and 2 120 volt variacs, would 
one be able to center tap series them (like MOTS, assuming the secondary 
taps are locked so they both pull the same voltage as they are turned).  
Once again, just curious!
Scott Bogard.


>From: "Tesla list" <tesla@xxxxxxxxxx>
>To: tesla@xxxxxxxxxx
>Subject: Re: variac voltage out (fwd)
>Date: Wed, 13 Jun 2007 15:39:14 -0600 (MDT)
>
>
>---------- Forwarded message ----------
>Date: Wed, 13 Jun 2007 15:38:57 -0600 (MDT)
>From: Chip Atkinson <chip@xxxxxxxxxx>
>To: Tesla list <tesla@xxxxxxxxxx>
>Subject: Re: variac voltage out (fwd)
>
>Maybe for a few seconds before it overheats and gets destroyed.
>I believe that the impedance of a transformer's primary is carefully
>matched to the input voltage.  If your voltage is too high the current
>flowing through will be too high and overheat the transformer.  If it's
>too low, not enough current will flow to provide enough current to the
>secondary output.
>
>Correct me if I'm wrong. :-)
>
>Chip
>
>On Wed, 13 Jun 2007, Tesla list wrote:
>
> >
> > ---------- Forwarded message ----------
> > Date: Wed, 13 Jun 2007 17:43:38 -0400
> > From: Scott Bogard <teslas-intern@xxxxxxxxxxx>
> > To: tesla@xxxxxxxxxx
> > Subject: variac voltage out
> >
> > Hey all,
> >      can you put 240V through a 0-140V variac to get 280 out, or will it
> > melt or saturate or any other bad things happen to it?  Thanks a bunch.
> > Scott Bogard
> >
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