Re: pig in overdrive...

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

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

In a message dated 2/27/01 9:16:27 PM Eastern Standard Time, tesla-at-pupman-dot-com 
writes:

> Hi Scott,
>  
>  What you can get away with and what you should do are not the same. I
>  personally wouldn't recommend
>  putting the pigs in series. They are only transformers and the secondary's
>  can overvolt like any other
>  transformer. I would recommend going the route of paralleling the pigs for
>  higher current capability
>  and use a variac to pull the voltage up to maybe 280V for about 17kV
>  output. This still is pumping up
>  the input a bit, but not like putting the pigs in series.

Bart,

Putting the pigs in series doesn't over-volt them at all, as long
as they are not grounded in single-ended fashion.  Just ground
the center point between the two pig secondaries, and all will
be fine.  This is the same as the way a center tapped NST
works all the time.  I often run my PT's with secondaries in 
series, each secondary only sees its normal voltage.  There
is no danger to the pigs with this arrangement.  

John Freau