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Re: getting high voltage from the high voltage lines? (fwd)



Original poster: "Edward Wingate by way of Terry Fritz <twftesla-at-qwest-dot-net>" <ewing7-at-rochester.rr-dot-com>

Tesla list wrote:
> 
> Original poster: Tesla List Moderator <mod1-at-poodle.pupman-dot-com>
> 
> ---------- Forwarded message ----------
> Date: Wed, 18 Sep 2002 22:40:17 -0400
> From: dhmccauley-at-spacecatlighting-dot-com
> To: Tesla list <tesla-at-pupman-dot-com>
> Subject: Re: getting high voltage from the high voltage lines?
> 
> Not to mention the liability.  Plus, even commercially, there really isn't a
> need for direct high voltage lines.   Even the highest voltage power
> supplies (such as those used in giant lasers, linear accelerations, very
> large radar systems, etc....) derive their power from 3-phase low voltage
> transformers such a 440 or 480VAC.  Sure the kVA ratings might be up even in
> the 1000's, but its still low voltage.
> 
> Dan

Dan,

In some cases there is. Large industrial sites demand high voltage
feeds.

The Eastman Kodak Company Elmgrove Site in Rochester (5 million square
feet) where I worked for thirty years until they abandoned it, had
many 13,800 volt three phase underground feeders that powered
in-building power vaults which stepped down the 13.8 KV to 480V. The
substation outside the buildings was fed by 115,000 volt transmission
line! The electric bill was well over $200,000 a month!

Ed Wingate RATCB