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<div class=Section1>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'>This is a pretty important measurement. I
was hoping that the Power-Save was eliminating the out-of-phase current,
leaving only the in-phase component. But if it throttling down the in-phase current
as well, that’s another story. It would be nice to know the Power Factor
in both cases, which would answer the question.</span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'> </span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'>Let’s assume for a moment that the
Power-Phase does eliminate the out-of-phase current, but not the in-phase
current…The immediate question that comes to my mind is “Are the
current specs for an inverter (continuous and surge) based on in-phase current
or the total current, part of which is in phase and part out of phase?” I
suspect it is the latter (total current). In which case the Power Phase (or its
equivalent) would be useful in presenting lower (motor based) surge currents to
an inverter.</span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'> </span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'>Another question that I have thought about
every since I bought my first Kill-a-Watt, “Is there a similar version
for 240V loads? I suspect that one could kludge two 120V Kill-a-Watts together
in a j-box and make it work some how, but a real 240V version at a reasonable price
would be great news.</span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'> </span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'>- Peter</span></font></p>
<div>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'>Peter T. Parrish, peter.parrish@calsolareng.com</span></font><font
size=2 color=blue face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:blue'> </span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
re-wrenches-bounces@lists.re-wrenches.org
[mailto:re-wrenches-bounces@lists.re-wrenches.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Jeff Yago<br>
<b><span style='font-weight:bold'>Sent:</span></b> Sunday, August 24, 2008 8:56
PM<br>
<b><span style='font-weight:bold'>To:</span></b> RE-wrenches<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [RE-wrenches]
Power-Save and Power Works</span></font></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> </span></font></p>
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<blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'>
<div>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt;
font-family:Calibri'><br>
On start up, the A/C unit went up to 91 amps and leveled out at 13 without the
Power-Save 1200 on.<b><span style='font-weight:bold'> When the Power Save unit
was engaged it was a draw of 35 amps and leveled out at 8.75. That pretty much
blew everyone away! After that, I tested everything with a motor load in my
house. I was astonished at the significant reduction in amperage.<br>
- - - - - - - - - - - - - - - - - - - - - - - - - </span></b></span></font></p>
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<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt;
font-family:Calibri'> </span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt;
font-family:Calibri'>You note they are not measuring the output of the device
being connected. For example, they are reducing the current draw of the
motor in the AC unit by slowing it down a little, which will reduce the cooling
output by same percentage. Like a variable-speed-motor drive, yes you can
reduce the motor current draw, but you are also slowing down the fan, pump, or
compressor it is driving. Only time this may be an advantage is if you
want to reduce the output of the device being driven as part of redicing its
current draw.</span></font></p>
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<div>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt;
font-family:Calibri'> </span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt;
font-family:Calibri'>Jeff Yago</span></font></p>
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</blockquote>
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face=Arial><span style='font-size:10.0pt;font-family:Arial'>
<hr size=2 width="100%" align=center>
</span></font></div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Netscape. Just the Net You Need.</span></font></p>
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