Article View: sci.electronics
Article #21195Re: How a watthour meter works (was: 110V vs 220V summary)
From: Larry Lippman
Date: Sat, 22 Apr 1989 23:36
Date: Sat, 22 Apr 1989 23:36
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In article <559@cvman.UUCP>, gdelong@cvman.UUCP (Gary Delong) writes:
> > Here is a description of how a watthour meter works. I grabbed this from the
> > net two years ago.
>
> That sounds like it would make the accuracy of the meter very dependent
> upon the type of load. ie: wouldn't an inductive load really screw
> things up?
You are correct. That is why virtually all commercial customers
of electric power utility companies with an electric service of greater
than 200 amps are also metered for reactive kva (RKVA). Newer meters have
dual indicators for both measurements within the same meter housing, and
older power installations or those for large services use separate meter
housings.
<> Larry Lippman @ Recognition Research Corp. - Uniquex Corp. - Viatran Corp.
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!lll-winken!uunet!kitty!larry From: larry@kitty.UUCP (Larry Lippman) Newsgroups: sci.electronics Subject: Re: How a watthour meter works (was: 110V vs 220V summary) Summary: RKVA... Message-ID: <3110@kitty.UUCP> Date: 22 Apr 89 23:36:24 GMT References: <3312@ihlpm.ATT.COM> <4958@ingr.com> <559@cvman.UUCP> Organization: Recognition Research Corp., Clarence, NY Lines: 19