Re: Using dual 120V for 240?
That's how they do it... You should get the variable transformer catalog
from Superior Electric. It has all this sort of application info in it.
(and you can drool over the big stacked units with motor drives and
> From: Tesla List <tesla-at-pupman-dot-com>
> To: tesla-at-pupman-dot-com
> Subject: Using dual 120V for 240?
> Date: Sunday, July 04, 1999 8:38 AM
> Original Poster: "Coiler" <mycroft-at-access1-dot-net>
> I am curious.. is it possible to gang a pair of 120V variacs to
> control 240? I assume they would be wired in series, with the center
> leg shared between, basically, one on each side of the neutral.
> Would this work? and if so, what are the gotchas?
> [I see lots of monster 120V variacs on E-bay, but no 240, so I am
> trying to be inventive here.]
> Michael Baumann
> Coiler, Homebrewer, Nerd. mycroft-at-access1-dot-net