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Re: Top Toroid
Tesla List wrote:
>
> Subscriber: rickh-at-ghg-dot-net Tue Feb 4 22:24:35 1997
> Date: Tue, 04 Feb 1997 18:50:22 -0600
> From: Rick Holland <rickh-at-ghg-dot-net>
> Reply-To: rickh-at-ghgcorp-dot-com
> To: tesla-at-pupman-dot-com
> Subject: Re: Top Toroid
>
> Tesla List wrote:
> >
> > I should have been a little bit clearer - I was refering to the ROC
> > (smaller diameter) as a function of coil diameter in Jim's case, not the
> > outer diameter. I agree that the outer (large diameter) can be
> > significantly greater for better coil performance, although I only have
> > direct experience with a toroid diameter (32") slightly larger than my
> > coil length (31"). The ROC is 8". However, it takes two 15 KV 60 MA
> > transformers to adequately drive this toroid to breakout.
> >
> > Safe coilin' to you!
> >
> > -- Bert H --
>
> --
> This is something that has been eluding me from the beginning. What is
> ROC?
> I presume from the above discussion that it must mean something like
> radius
> of center, but I may be entirely off-base.
<SNIP>
>
> Rick Holland
>
> The Answer is 42
Rick,
Sorry - I usually spell out an acronym before using it. ROC means Radius
of Curvature, and is the (smaller) diameter of the tubing used to make
the toroid. While the capacitance of the toroid is mainly governed by
the outer diameter, the breakout voltage is primarily governed by the
ROC.
However, now that I look at my diagram, I see that I've misused the term
in my post: when I said I had a 8" x 32" toroid, this ACTUALLY means
that the torus diameter is 8", so that the ROC would actually only be
4".
Torus
Diam
| |
* *
* * ------ * *
* *
| Outer Diam |
Safe coilin to you, Rick!
-- Bert H --