Re: Measuring AC Watts

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

Original poster: "Ed Phillips by way of Terry Fritz <twftesla-at-qwest-dot-net>" <evp-at-pacbell-dot-net>

Tesla list wrote:
 >
 > Original poster: "S & J Young by way of Terry Fritz 
<twftesla-at-qwest-dot-net>" <youngs-at-konnections-dot-net>
 >
 > To those interested in monitoring AC power:
 >
 > I ran across an electronic power meter that looks interesting for TC power
 > consumption measurements.  It is for 120 VAC, 60 Hz up to 1800 watts.  See
 > the specs:
 > http://www.lacrossetechnology-dot-com/products/3362u.html
 >
 > They don't sell it directly, but a number of other business do.  Here is one
 > that sells it for $30.00
 > http://www.gear101-dot-com/lacrosseinstruments.htm
 >
 > The question is, with all the EMI reflected back into the AC line from our
 > coils, will this power meter still function accurately?


	Quite unlikely, unless you could put good matched-phase low-pass
filters on the inputs.


 > Might be a good item for efficiency contests (streamer length per watt).
 >
 > Does anyone have any experience with this instrument?
 >
 > --Steve Young

Ed