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Re: [Amps] Benefits of 3-phase power?

To: "R.Measures" <r@somis.org>, wrt@dslextreme.com,AMPS <amps@contesting.com>
Subject: Re: [Amps] Benefits of 3-phase power?
From: Steven Grant W4IIV <stevengrant98@yahoo.com>
Reply-to: stevengrant98@yahoo.com
Date: Fri, 21 Nov 2003 10:04:40 -0800 (PST)
List-post: <mailto:amps@contesting.com>
There are 2 things here to know: Pro-higher frequencies means smaller 
transformers and smaller filters....Con-the higher the frequency, the more skin 
effect, and capacitive losses increase here
 
steven

"R.Measures" <r@somis.org> wrote:


>On Tue, 18 Nov 2003 23:50:33 -0500, wrote:
>
>>There is in some ways a genius in the 110/220 decision so many years ago. 
>
>_________________________________________________________
>
>Too bad they went with a relatively low frequency. 400 Hz is widely
>used in aircraft and has numerous advantages. 

*** But not for long-distance power transmission. 

>In fact, if they would
>go to ~1000 Hz, electrocution would become a thing of the past. The
>human nervous system can not sense an electric shock when the
>frequency is higher than 600-700 Hz or so. One could still get a
>nasty burn, but think how many lives would be saved.
>
>OT, to be sure.
>
>--
>Bill, W6WRT
>
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>
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STEVEN GRANT    W4IIV


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