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From: ken@rochester.ARPA (Ken Yap)
Newsgroups: sci.electronics
Subject: Re: Domestic KiloWatt Hour Meters
Message-ID: <27181@rochester.ARPA>
Date: Tue, 21-Apr-87 05:55:09 EST
Article-I.D.: rocheste.27181
Posted: Tue Apr 21 05:55:09 1987
Date-Received: Wed, 22-Apr-87 02:15:37 EST
References: <923@mhuxh.UUCP> <1715@kitty.UUCP> <243@omssw1.UUCP>
Reply-To: ken@rochester.UUCP (Ken Yap)
Organization: U of Rochester, CS Dept, Rochester, NY
Lines: 13

|A while back, someone told me you could make watt-hour meters run
|slow, or even backwards by messing with the power factor angle.
|I think it involved putting a huge inductive load on the line.
|This came up when someone was explaining why large industrial motors
|have large capacitors in parallel with them.

Large motors have capacitors in parallel to improve the power factor,
to "cancel out" the inductive load.

You can make the watt-hour meter run backwards by feeding power back
into the supply.

	Ken