Re: Watt meters

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: Terry Fritz <teslalist-at-twfpowerelectronics-dot-com>

Hi,

House type power meters certainly do measure real power.  They do it with 
all the coils and induction disks and such (electronic nowadays).  In fact, 
if you supply power from your house back into the grid, the meter will spin 
backwards.  We did that on a solar power project once and I can verify that 
they really do go backwards.

Cheers,

         Terry


At 12:54 AM 3/17/2004, you wrote:

>Hi John,
>
>Is this true?  I thought that the electric meter just logged volts * amps *
>hours (really a KVAH meter) and did not figure into it the power factor
>(maybe assuming that residential users's power factor was one).
>
>Gerry R
>
> > Original poster: John Keith <jskeith-at-interaccess-dot-com>
> >
> > but residential customers are not; they are
> > charged purely on the basis of actual watts.