Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!uunet!kitty!larry
From: larry@kitty.UUCP (Larry Lippman)
Newsgroups: sci.electronics
Subject: Re: Fluorescent light ballasts
Summary: High frequency power distribution...
Message-ID: <3512@kitty.UUCP>
Date: 21 Nov 89 23:08:57 GMT
References: <22334@gryphon.COM> <5170060@hplsla.HP.COM> <1099@umigw.MIAMI.EDU>
Distribution: usa
Organization: Recognition Research Corp., Clarence, NY
Lines: 17

In article <1099@umigw.MIAMI.EDU>, wb8foz@mthvax.cs.miami.edu (David Lesher) writes:
> At one point I heard a proposal to outfit large office buildings
> with ~260 volt power at several ten of khz. This would go to the
> lamps, which would have custom ballasts. The driving force was
> several % improvement in efficiency-- a double payoff since it
> also reduced the cooling load of the HVAC systems.

	This HAS been done in some experimental installations, but as far
as I know, the concept just never caught on.  The systems I am aware of
used 400 and 600 volts at 3 kHz.  For references check some backissues of
"Illuminating Engineering" or the IES (Illuminating Engineering Society)
Handboook.

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