Re: [TCML] 3 phase Car Alternator WIRELESS Bipolar TC

[Harvey Norris <harvich@xxxxxxxxx>]

--- On Thu, 6/23/11, seanrick@xxxxxxxxxxx <seanrick@xxxxxxxxxxx> wrote:

> From: seanrick@xxxxxxxxxxx <seanrick@xxxxxxxxxxx>
> Subject: Re: [TCML] 3 phase Car Alternator WIRELESS Bipolar TC
> To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
> Date: Thursday, June 23, 2011, 11:25 AM
> 
> 
> Harry, 
> 
> 
> 
> I am interested in learning more about your system.  do
> you have any documentation you can share.  I am a begineer
> at this unfortunately.  I just joined TCM recently. 

This kind of work is on the fringe of TC coiling, and definitely not for beginers. In fact most will see it as being impractical. Indeed to reproduce these kind of effects using 3 phase from the power grid @ 60 hz would be problematic if not impossible. But many coilers have wondered if any advantages might be procured by using a higher frequency input,(near 500 hz) that a AC car alternator can provide. I use two high voltage 100 nf,(.1 uf) caps in series for my primary C value(s). This equates to 50 nf. Using slightly larger pulley diameters from the motor 3450rpm to the alternator pulley will provide a freq. from the 7 pole face alternator; (7 cycles / rotation) of about 465 hz. Under these conditions for a given field input, let us measure how much amperage the alternator can supply on a dead short of one of the three phases, and note that value which would normally be considered as a LIMIT as to how much amperage the alternator will deliver for the
 specified DC field amperage conditions. Now let us replace that output short with a pole pig primary connection to this 64/1 step up transformer whose secondary now has that 50 nf load. What I found was that now the alternator phase delivering amperage had increased 80% past what the short value showed itself to be. This is a ferromagnetic resonance similar to what happens when a NST is given a capacity that matches the inductive reactance of its secondary. Ordinarily that practice is avoided with NST's because with a 120 volt input, the output of the NST would be over volted and damage the transformer. But here because the pole pig is practically indestructable, and also because the alternator normally only outputs a meager voltage in the 15 volt range, we can utilyze that ferromagnetic resonance principle. The worry about ballasting the pole pig transformer primary is replaced with the worry about the current limitations of the alternator itself,
 which shouldn't be to hard to ruin with heats involved when that alternator begins producing more amperage then it is designed to output, given the limitations of that source to provide amperage.
So all of these things were noted years ago with the first alternator powered TC that actually only provided 2 inch secondary top terminal arcing. The car alternator simply cannot compete with the amount of power that the conventional 60 hz power grid can deliver. I mention these things as a primer to those interested in car alternator TC's. What has transpired beyond that point is quite beyond the scope of discussion for tesla coils, and involved the use of large inductors that could also resonate with that 50 nf C value at the alternator freq, and was more involved with the study of source frequency resonances, which is a totally different ballgame then the more familiar high frequency arc gap tesla secondary resonant phenomenon. Because I had extensively studied the source frequency resonant phenomenon both at 60 hz and the higher alternator frequencies beforehand; eventually I was able to connect these phenomenon in a somewhat unique way after first
 building a 250,000 hz TC powered by an NST @ 60 hz. To connect these phenomenon I merely changed both the primary winding amount and changed the C value to the noted 50 nf so that both the source frequency and arc gap high frequency processes could be compatible. It was in this way that the use of ferromagnetic transformers at alternator frequencies could largely be bypassed. I thank the moderators of TMCL for allowing me to introduce this subject, and hope that I was not rude in doing so.
Sincerely Harvey D Norris
Pioneering the Applications of Interphasal Resonances http://tech.groups.yahoo.com/group/teslafy/

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