Re: PVC secondaries

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

Original poster: "Sean Taylor by way of Terry Fritz <twftesla-at-qwest-dot-net>" <taylorss-at-rose-hulman.edu>

> Plans MAY be in the works(hopefully - depend's on $$)
> for a 2500Kva  4160Vac 3 ph  generator powered coil.

OK, am I reading this right, 2500 KVA, ie 2.5 MVA, as in 2,500,000 VA?  Wow,
that's all I have to say . . .

> I'm cross'n my fingers and if I still have my pant's left on my butt,I'm
> gonna need some design help.Are you or anyone else willing ?? V
> doubler/tripler,Res. chg. DC.???
> SM

I'd be willing to help, I don't have any experience with 3 phase DC coils,
but I do with just DC, so I don't know how much I'd be able to help.
Anyhow, good luck!

Sean

> ----- Original Message -----
> From: "Tesla list" <tesla-at-pupman-dot-com>
> To: <tesla-at-pupman-dot-com>
> Sent: Friday, June 28, 2002 5:01 PM
> Subject: RE: PVC secondaries
>
>
> > Original poster: "Jeff W. Parisse by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <jparisse-at-teslacoil-dot-com>
> >
> > Greg (et. al.),
> >
> > If you are going to use PVC, you should coat it inside and out with a
> > suitable high voltage insulator. On my hobby coils, I've used generic
> > 601 "Red Insulator" (Dolph's or Spray-On brand). Others have used Gyptal
> > (an industry standard for 30 years or more). I may have misspelled it.
> >
> > During destructive testing, it's the PVC that usually goes first (arcs
> > track under the windings or inside the coil form). So coating is a must
> > for reasons already pointed out by others.
> >
> > kVA Effects uses a custom, two-part electrical resin from 3M. Max
> > Overkill for under 20kVA.
> >
> >
> >
> > Jeff Parisse
> > www.teslacoil-dot-com
> >
> >
> > Some coil plans I have say that when using PVC as a coil form, it should
> > be coated with polyurethane (or similar) BEFORE winding the wire on to
> > reduce losses. Is this really necessary? I would have thought it just
> > adds more loss by making the form wall thicker.
> >
> > Greg Peters
> >
> >
> >
> >
>
>
>
>