>-----Original Message-----
>From: p.cousens [mailto:p.cousens@BISCIT.BIZ]
>Sent: 25 May 2004 10:55
>To: PICLIST@MITVMA.MIT.EDU
>Subject: Re: [EE:] power factor change depending on voltage or phase?
>
>
>-----Original Message-----
>From: pic microcontroller discussion list
>[mailto:PICLIST@MITVMA.MIT.EDU] On Behalf Of Michael Rigby-Jones
>> Sent: Monday, May 24, 2004 4:26 PM
>> To: PICLIST@MITVMA.MIT.EDU
>> Subject: Re: [EE:] power factor change depending on voltage or phase?
>
>> >-----Original Message-----
>> >From: Howard Winter [mailto:HDRW@H2ORG.DEMON.CO.UK]
>> >Sent: 24 May 2004 15:03
>> >To: PICLIST@MITVMA.MIT.EDU
>> >Subject: Re: [EE:] power factor change depending on voltage
>or phase?
>> >
>> >Incidentally, is power factor correction (PFC) a Good Thing for the
>> >user (ie. does the meter go round less for a given power
>used) or for
>> >the supplier (the meter goes round more)?
>
>> For a home user, it's only good for the supplier, since the average
>home
>> electricity meter does not measure power factor.  The home owner
>probably
>> doesn't care either way, he gets no financial gain for presenting a
>good  > PF.
>
>The old disc type meter only measured current regardless of
>voltage And I'm certain that the power companies would not
>want to tip the scales out of their favor by having the
>digital ones work any differently (arguing on complexity and
>reliability of course)
>
>This being the case how can the PF not affect the measurement,
>If A x V = W  only if the PF = 1 ?

The disc type meters measured voltage and current AFAIK.  After all, if they
did not, they certainly could not be considered to be measuring in KW/hours,
rather in Amp/Hours.

Regards

Mike




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