Re: Current transformer compensation idea

From: colin (no.spam.for.me_at_ntlworld.com)
Date: 07/28/04 

Date: Wed, 28 Jul 2004 00:36:30 GMT

"analog" <analog@ieee.org> wrote in message
news:41069E2C.264B21F8@ieee.org...
> However, this would still leave the voltage burden from the
> sense current flowing through the CT's winding resistance.
> Even this could be largely nulled out by actively driving the
> "grounded" end of the current transformer with a feed forward
> signal proportional to current appropriately scaled just to
> equal the drop developed on the internal winding resistance.
>
> analog

just something i havnt given much thought to yet, how about driving the
feedback current through a seperate winding, such that the sense winding
then has no voltage acros it?

Colin =^.^=