Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!wuarchive!brutus.cs.uiuc.edu!apple!xanadu!michael From: michael@xanadu.com (Michael McClary) Newsgroups: sci.electronics Subject: Re: Watt Hour Meters Message-ID: <1990Feb2.144253.11726@xanadu.com> Date: 2 Feb 90 14:42:53 GMT References: <25675@cup.portal.com> <1262@island.uu.net> <1990Jan11.015852.7031@phri.nyu.edu> Reply-To: michael@xanadu.UUCP (Michael McClary) Distribution: usa Organization: Xanadu Operating Company, Palo Alto, CA Lines: 8 By the way: Though utilities meter real power to big users with both a 15-min recorder (for finding the demand peak and the primetime higher-rate) and an integrating watt-hour meter (for backup and to generate pulses for the 15-min recorder), they generally meter VARs with an integrating meter that's read monthly, and assume the power factor is constant. Thus, fancy switching is wasted, if you're interested in your bill rather than doing the power company a favor.