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Re: Externally limited NST
All the inductor does is put a lossless impedance in series, so the voltage
on the load is reduced. It matters not whether the impedance is capacitive
or inductive. As a practical matter, the inductors are easier to build in
high current versions with low impedances.
For instance if you want something at 40 Amps for 240 V (just to take an
example), you'll need an impedance of 6 ohms. For the inductor, this is .44
mH, a reasonable value. For a capacitor, you'd need 2262 Farad (!). [all
at 60 hz]
However, at low low powers, caps make a nice solution. For instance,
inside those X10 remote control modules, they use a capacitor to drop the
110V to something lower.
Say you wanted 1 mA from a 120V line. You'd want 120K of impedance, or
about .022 uF...
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> From: Tesla List <tesla-at-pupman-dot-com>
> To: tesla-at-pupman-dot-com
> Subject: Re: Externally limited NST
> Date: Friday, March 10, 2000 3:51 AM
>
> Original Poster: "Bunnykiller" <bigfoo39-at-idt-dot-net>
>
> Tesla List wrote:
> >
> > Original Poster: "Jim Lux" <jimlux-at-jpl.nasa.gov>
> >
> > Yes.. you could limit the current with either external caps or
> > inductors..(or a resistor for that matter)..
> >
>
>
> Limit current with capacitors? How? is it like phase shifting but in
> the opposite direction that an inductor would do ??
>
> Lost on this one guys ....
>
>
> Scot D
>
>