Re: Three phase TC

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

Original poster: "Bert Hickman by way of Terry Fritz <twftesla-at-qwest-dot-net>" <bert.hickman-at-aquila-dot-net>

Chris,

The sequence of three trigger pulses, separated by 120 RF degrees at Fo,
can be generated at whatever break rate is desired, and you could "fire"
the gaps at this rate for however long you desired. Triggering could be
done synchronously with the incoming single phase mains, or by using a
variable rate pulse generator to drive a variable break rate if using a
DC resonant charging system. 

Every time you want to "fire" the main gaps, you would initiate a
sequence of three triggering pulses. The system would otherwise run just
like Marc's triggered disruptive system, except that it would have three
tank circuits, three triggered gaps, and three resonators. It would
simply "look" like all three gaps were firing at the exact same instant
at whatever breakrate was desired, but the phasing would actually be 120
degrees apart each time the gaps were triggered.

It should be feasible and not too difficult. Computer control could be
an added wrinkle, but simple logic circuitry would work just fine.
Sometimes "KISS" is better, especially with Tesla Coils...

-- Bert --
-- 
Bert Hickman
Stoneridge Engineering
Email:    bert.hickman-at-aquila-dot-net
Web Site: http://www.teslamania-dot-com


Tesla list wrote:
> 
> Original poster: "Christopher Boden by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <chrisboden-at-hotmail-dot-com>
> 
<SNIP>
> If we use a
> >lower operating frequency for the coils, the effects of this jitter can be
> >further reduced. In the example Brian provided, a sequence of high voltage
> >trigger pulses, each separated by 1.67 uSec, would be sufficient to
> >initially time-phase the three systems by 120 electrical degrees. However,
> >it's not clear that this phase relationship will be maintained once
> >significant energy begins to be exchanged between them...
> >
> 
> That's the thing. I don't want to run these for microsecond bursts. I'm
> shooting for 30sec runs at least. Preferably with the Wye discharge. It
> looks much cooler than the Delta would. I'd like to have all 3 gaps computer
> controlled to be able to vary firing time and sequencing independantly to
> see the effects of changing things in realtime.
> 
> >Best regards,
> >
> >-- Bert --
> 
> duck
> 
> Christopher A. Boden Geek#1
> President / C.E.O. / Alpha Geek
> The Geek Group
> www.thegeekgroup-dot-org
> Because the Geek shall inherit the Earth!
> 
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