Re: once again...the correct schematic...

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Sparktron01@xxxxxxxxxxx 

Hi Gerry

I live confused too   ;^D

I modeled circuit with 3 1:1 chokes in series as AC current sources ( 
with a 1000 ohm resistor
in parallel with each current source, PSpice will puke if you don't 
have parasitic parallel load R ).
I assumed a 1 ohm loop R and monitored V (I) across 1 ohm R of series loop.

The bottom line is your comment is correct, you will see the average 
(  [(I1+I2+I3)/3 ]  current in
the series loop.  If a single transformer tries to "hog" or "suck" 
more current, the loop current will
likewise vary upward/downward and the differential current to actual 
in each 1:1 transformer
reflects back to tend to automatically cause current  balance on each 
variac.  Actually pretty
cool to  watch circuit dynamics  in model.  I know this methodology 
is used in as many as (8)
 variacs in parallel (224A array @ 100% DC).

Regards
Dave Sharpe, TCBOR/HEAS
Chesterfield, VA  USA

 -------------- Original message ----------------------
From: "Tesla list" <tesla@xxxxxxxxxx>
> Original poster: "Gerry  Reynolds" <gerryreynolds@xxxxxxxxxxxxx>
>
> Hi Dave,
>
> What makes the secondary current small.  Seems like if the turns
> ratio is 1:1, the secondary current will equal the primary
> current.  The fact that all the secondaries are in series forces all
> the secondary currents to be the same and thus all the primary
> currents will be the same.  Maybe the turns ratio is not 1:1???
>
> -just when I thought I understood it :o((
> Gerry R
>
>
>
> Original poster: Sparktron01@xxxxxxxxxxx
>
> (3) 1256D's with T5587 balancing chokes with
> secondaries in series configuration.
> The series configuation is used because it makes wiring (and bubar 
structures)
> for really big stacks easy.  Plus the series connection wire is 
SMALL compared
> to bus structure (ideally '0' current should be
> flowing through it).
>
>