to quote the Nikola Tesla Colorado Springs Notebook 1899-1900

"a large radius of circumference. . ."


This might help ya . . . interesting at least.

http://www.amasci.com/exhibits/hiamp.txt

> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Welch, Ken
> Sent: Thursday, May 30, 2002 4:09 PM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [EE]:formula/link for current capacity of wire (AC)
>
>
> skin effect is pretty much negligible even with high currents
> below 10Khz...
>
> using a hollow bus bar might have some advantages if you can pump some
> coolant thru the inside.....also, easier to bend copper pipe than
> solid bar
> stock...
>
> -----Original Message-----
> From: Martin Baker [mailto:mbaker@OPTIMEINC.COM]
> Sent: Thursday, May 30, 2002 9:58 AM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [EE]:formula/link for current capacity of wire (AC)
>
>
> Ahhh... Where is Nikola Tesla when you need him. With that much
> current you
> probably could broadcast power. I wonder if Wardenclyffe is for sale? I
> have often wondered if that pseudosphere was actually a coil form as
> opposed to a mere terminal. Think Tertiary coil. Heh
>
> AT 833 Amps, you could use a tire as a carbon film resistor....
>
> As for Busses, I recommend taking advantage of the skin effect. Silver
> coated copper pipe with reinforced corners would be favorite. You probably
> will not want solid conductors. If you really want a thrill, fill the
> insides of the pipes with Supercritical CO2. Sigh.
>
> I dont suppose there are any empty slots on that buss for rent?
>
> M
> > > ok..power guys...
> > >
> > > Whats the formula, given that I have the current and voltage,
> > > to calculate
> > > the wire size that is required.
> > >
> > > I'm talking large amounts of current...like 833Amps @120VAC
> > >
> > > I know for 200A, I need a 4/0 wire.
> > >
> > > Distances are rather short, something like 20 feet or less.
> > >
> > >
> > > anyone?
> > >
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