Re: VERY HIGH BPS at 6kw! 240 V into the 120 V

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

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

In a message dated 5/15/03 1:58:33 AM Eastern Daylight Time, 
tesla-at-pupman-dot-com writes:

>Hey,
>
>Has anyone else pumped 240 V into the 120 V winding of a pole transformer?
>I was thinking about doing just that, but with a 14.4KV transformer.  Like
>pump in 240 V into the 120 V to get 28.8 KV out.  Hehe.
>
>Terry Blake


Terry,

I knew a fellow who did that with a 7.2kV transformer.  The transformer
saturated as expected but he didn't care.  The saturation caused it to
draw a lot of current and be rather inefficient.  Generally transformers
will begin to saturate at 140 to 150 volts or so when the 120 volt
winding is used.  I like to limit the input to about 140 volts for a 120 volt
winding, and 280 volts for a 240 volt winding.

John