Re: Silly question?

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

Original poster: "david baehr by way of Terry Fritz <twftesla-at-qwest-dot-net>" <dfb25-at-hotmail-dot-com>


At $210 for a tested, new oil, gaskets, painted and gauranteed 14400/5kva, I'll
pass on building one, just my $.02 

>From: "Tesla list" 
>To: tesla-at-pupman-dot-com 
>Subject: Re: Silly question? 
>Date: Wed, 26 Sep 2001 18:53:44 -0600 
> 
>Original poster: "Jim Lux by way of Terry Fritz " 
> 
>Several folks have done just this. I believe it was Finn Hammer who made 
>his own mini-pig. I've also heard about people rewinding Microwave oven 
>transformers. Checking back through the archives, you'd find a fair amount 
>of information about the necessary core cross section, wire size, etc. 
>Rigging up a simple vacuum encapsulation setup to pot the secondary winding 
>for corona and breakdown prevention would be fairly straight forward, or, 
>you could just sink it in oil. 
> 
>Tesla list wrote: 
> > 
> > Original poster: "Matthew Smith by way of Terry Fritz 
>" 
> > 
> > Hi All 
> > 
> > Maybe I've been away from electrical engineering for too long and 
> > writing software as made me soft in the head - but: 
> > 
> > If sourcing suitable 110/240V --> xkV transformers is such a bind, why 
> > not wind our own? If it's a question of it being too (mechanically) 
> > difficult, maybe I (and others) should try to devise a tranny winding 
> > gadget - possibly one that's flexible enough to do Tesla secondaries as 
> > well... 
> > 
> > In my previous engineering incarnation, we were forever getting motor 
> > stators rewound and they must be a NIGHTMARE to do compared with a 
> > tranny! 
> > 
> > Transformers with alternated laminations (ie the ones that won't pull 
> > apart) are obviously out of the question... 
> > 
> > If anybody's seen the little widgets on sewing machines that fill the 
> > underside bobbin, maybe something based on that principle? 
> > 
> > Cheers 
> > 
> > M 
> > 
> > -- 
> > Matthew Smith 
> > Kadina, S. Australia 
> 
> 
> 


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