Re: calculating safe primary turn-to-turn distance

["Malcolm Watts" <M.J.Watts-at-massey.ac.nz> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

Hi Jon,
       Interesting question. 

On 30 Aug 00, at 22:35, Tesla list wrote:

> Original poster: "Jon Rosenstiel" <jonr-at-pacbell-dot-net> 
> 
> 
> ----- Original Message -----
> Subject: Re: calculating safe primary turn-to-turn distance
> 
> Malcolm, all,
> 
> Would there be any advantage to building a pancake primary with the below in
> mind? Inner turns closely spaced where the voltage gradient is small and
> progressively wider spacing as the turn to turn voltage gradient increases?

The gradient would probably modify itself in an undesirable 
way if you did this because then the inner turns would end up 
with more L/turn due to increased mutual coupling. There may 
well be a happy medium.

Regards,
Malcolm

> Regards,
> Jon Rosenstiel
> 
> <snip>
> 
> > Well the inner turns exhibit less inductance per turn so
> > perhaps the gradient ought to track the length of winding per
> > turn e.g. for the outer turn to the its nearest neighbour, the
> > gradient will be highest as will the length of conductor and
> > so on inwards.
> >
> > Regards,
> > malcolm
> >
> >
> >
> 
> 
>