Re: Wire Length (fwd)

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Moderated and approved by: Gerry Reynolds <greynolds@xxxxxxxxxx>



---------- Forwarded message ----------
Date: Fri, 22 Dec 2006 23:07:59 -0700
From: Gerry  Reynolds <gerryreynolds@xxxxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: Wire Length (fwd)

Hi Bart,

In this thread I'm presuming the following terms are in reference to the TC 
primary, yes???
Is "rim grounded" the outer or inner rim???
Does center grounded mean driven hot at inner turn and tapped turn and 
somewhere in the center is a voltage null???

How does JAVATC configure the primary???  outer turn, inner turn, or center 
grounded??

Gerry R.


> ---------- Forwarded message ----------
> Date: Thu, 21 Dec 2006 20:14:26 -0800
> From: Barton B. Anderson <bartb@xxxxxxxxxxxxxxxx>
> To: Tesla list <tesla@xxxxxxxxxx>
> Subject: Re: Wire Length (fwd)
>
> Hi Paul,
>
> Excellent! Thanks for running the numbers. I should be able to perform
> the measurements you discussed once the coil is ready. The comparison
> between inner and outer grounded configurations noting the current
> maximums are interesting, especially the rim grounded case where the
> current rise to max is in the first few turns.
>
> For the primary, I planned on using about 30 feet of copper ribbon,
> about 2 turns. I was planning on the ribbon starting about 1" proximity
> and to be wound in the same direction and on the same horizontal plane
> of the secondary with 0.375" spacing between the 2 turns. So, just
> imagine the ribbon as an extension of the secondary with the joint of
> the two coils to be grounded. The ribbon itself is small but should be
> sufficient. The ribbon dimensions are .007 x .375.
>
> BTW, in Javatc I don't allow for the rim grounded situation (geometry
> error). There are reasons for this but may not be needed with this
> particular coil configuration (I'll have to check that out). I was able
> to perform the model with Fantc however with no problems, however,
> numbers are quite a bit off from your sim software. Ex; Lee came out to
> 7.5mH, 495kHz. This was using the highest resolution Fantc allows.
>
> Take care,
> Bart
>