Re: Ganging 1256D's

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "by way of Terry Fritz <twftesla-at-uswest-dot-net>" <wysock-at-ttr-dot-com>

To Jim Lux, all.

I've watched this thread for some time; even replied to one participant off
line about two weeks ago.  The (technically) correct way to balance the
output of a 4-stack of Powerstats(tm) or Variacs(tm), is to use one
current averaging transformer ON EACH stack.  Four stacks; four
balancing transformers.  You can find the schematics of how this
is correctly polarized and done in a Superior Electric catalog, or
Technipower (for the former GenRad Variac line) catalog.  Hope this
helps.

Best regards,
Bill Wysock.

> Date:          Sat, 17 Mar 2001 17:22:52 -0700
> From:          "Tesla list" <tesla-at-pupman-dot-com>
> To:            tesla-at-pupman-dot-com
> Subject:       Re: Ganging 1256D's

> Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-uswest-dot-net>"
<jimlux-at-earthlink-dot-net>
> 
> Or... build yourself a 4 winding balancing choke..
> 
> ----- Original Message -----
> From: "Tesla list" <tesla-at-pupman-dot-com>
> To: <tesla-at-pupman-dot-com>
> Sent: Saturday, March 17, 2001 11:28 AM
> Subject: Re: Ganging 1256D's
> 
> 
> > Original poster: "BunnyKiller by way of Terry Fritz <twftesla-at-uswest-dot-net>"
> <bigfoo39-at-telocity-dot-com>
> >
> > Tesla list wrote:
> >
> > > Original poster: "D.Wightman by way of Terry Fritz
> <twftesla-at-uswest-dot-net>"
> > <dwightman-at-mmcable-dot-com>
> > >
> > > Ok, since were on the subject of ganging 1256-D powerstats I too have a
> > > question. I have a stack of 4, 1256-D powerstats, and also have 2 of the
> > > paralleling chokes from superior electric. Since 1 choke is good for 2
> > > variacs, and i will be using a stack of 4 variacs total, and have only 2
> > > chokes. Then would it be fair to say that I should get a third choke to
> put
> > > between the 2 pairs of powerstats that are already ganged in parallel
> with
> > > paralleling chokes?
> >
> > Snipperzzz...
> >
> > yes you will need another choke to balance out the voltage "differences"
> > between the 2 sets of
> > variacs.
> >
> > Scot D
> >
> >
> >
> >
> 
> 
> 
> 
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