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<div class="moz-cite-prefix">Drake, <br>
I have never heard of this. An oscilloscope would quickly answer
that question for you. Please share what you learn.<br>
Allan<br>
<br>
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<p class="MsoNormal"><b>Allan Sindelar</b><br>
<span style="font-size:10.0pt"><a
href="mailto:allan@sindelarsolar.com">allan@sindelarsolar.com</a></span><br>
<span style="font-size:10.0pt">NABCEP Certified PV
Installation Professional<br>
NABCEP Certified Technical Sales Professional<br>
New Mexico EE98J Journeyman Electrician<br>
Founder (Retired), <span
style="mso-bidi-font-weight:bold">Positive Energy,
Inc.</span><br>
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On 5/20/2014 8:24 AM, Drake wrote:<br>
</div>
<blockquote
cite="mid:20140520142435.E81F03E4057@homiemail-a46.g.dreamhost.com"
type="cite">
Hello Wrenches,<br>
<br>
We are diagnosing a system with a 20 year old Trace DR 1512
inverter.
Recently a motor burned out that had been running on the system. I
do
understand that modified sine (modified square) wave inverters are
hard
on motors in general.<br>
<br>
My question is, "does the quality of the Mayan Pyramid sine wave
deteriorate with time as the capacitors dry up, or for any other
reason? Would the power quality be expected to have declined on
an
old unit like this?<br>
<br>
Thanks,<br>
<br>
Drake <br>
<br>
<a moz-do-not-send="true" name="_MailAutoSig"></a>Drake Chamberlin<br>
<i>Athens Electric LLC<br>
OH License 44810<br>
CO License 3773<br>
NABCEP Certified Solar PV <br>
740-448-7328<br>
</i><a moz-do-not-send="true" href="http://athens-electric.com/">http://athens-electric.com/</a>
<br>
<br>
<br>
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<br>
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