Re: 3 phase TC (fwd)

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Original poster: List moderator <mod1@xxxxxxxxxx>



---------- Forwarded message ----------
Date: Sun, 3 Jun 2007 10:00:10 -0700
From: Teslacoil Workshop <workshop@xxxxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: 3 phase TC (fwd)

The only three phase coil I know of is Greg Leyh's Electrum; yes it is DC
but has a three phase charging circuit.

kVA Effects has a 3 phase AC design that has not been built or tested. Solid
state designs make 3 phase AC designs look awfully heavy!!!  ;-) The
observation that a 3 phase AC coil would be like three coils in one is
pretty close to what we designed.

(note for newbies: don't ask because I can't comment much on kVA Effects
work that is not in the public yet. It is not a "mean Jeff" thing... it is a
"corporation" thing that has to do with partners, investors, bankers and
insurers.)

Jeff



----- Original Message ----- 
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Sunday, June 03, 2007 9:10 AM
Subject: Re: 3 phase TC (fwd)


> Original poster: List moderator <mod1@xxxxxxxxxx>
>
>
>
> ---------- Forwarded message ----------
> Date: Sun, 3 Jun 2007 09:07:17 -0700 (PDT)
> From: J. Aaron Holmes <jaholmes@xxxxxxxxxxxxxxxxxx>
> To: Tesla list <tesla@xxxxxxxxxx>
> Subject: Re: 3 phase TC (fwd)
>
> 360 / 3 = 120, not 60 :-))  Never heard of 120V
> three-phase either, unless you speak of 208Y where you
> have 120V between each hot and neutral.  In that case,
> connecting two hots yields 120 * sqrt(3) = 208V.
>
> Still, producing a "triplet" or "tri-mode" system this
> way seems possible.  I'd hesitate to call it a
> "three-phase coil", since it's really three coils
> operating out of phase.  Since the angle of separation
> would be less than for a twin system, and since you'd
> be powering three coils instead of two, it seems like
> it'd be a lot harder to get long sparks.  Still, it
> would definitely be interesting!
>
> Perhaps there is some way to produce an actual
> "three-phase coil" (AC), though, using a special gap
> or multiple gaps and maybe multiple primaries.  I
> think this has been discussed here before.  It's hard
> for me to see where such a system would have any
> advantage over a single-phase system run at a higher
> breakrate, though.
>
> If there is such a thing as a "common" use for
> three-phase power in the TC community, it is for DC
> coiling.  The coil named "Electrum" is/was, I believe,
> a DC coil fed with three pole pigs rectified.
>
> Regards,
> Aaron, N7OE
>
>
> --- Tesla list <tesla@xxxxxxxxxx> wrote:
>
> > Original poster: List moderator <mod1@xxxxxxxxxx>
> >
> >
> >
> > ---------- Forwarded message ----------
> > Date: Sun, 03 Jun 2007 01:21:25 -0400
> > From: Scott Bogard <teslas-intern@xxxxxxxxxxx>
> > To: tesla@xxxxxxxxxx
> > Subject: 3 phase TC
> >
> > Hey everybody,
> >      A while back somebody asked about a 3 phase
> > Jacobs ladder, what about a
> > 3 phase TC?  I don't know much about 3 phase power,
> > but as I understand it,
> > connecting 2 hots on a 120 volt 3-phase line
> > produces about 100 volts as
> > they are 60 degrees out of phase, and connecting all
> > three give 0 volts as
> > they cancel each other.  Would it be possible to
> > have 3 identical systems
> > running of a single three phase piggie, to get 3 TCs
> > each 60 degrees out of
> > phase.  My thinking is that a twin coil is like a
> > center tapped NST, 180
> > degrees out of phase, and a triple would be like
> > 3-phase tranny, with all
> > the RF grounds coming together and happily canceling
> > each other out.  I
> > obviously don't have the time or funds to make such
> > a device, I am simply
> > curious as to whether it would be theoretically
> > possible (or if somebody's
> > done it already).  Thanks.
> > Scott Bogard.
> >
> >
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