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<br>
William, you are correct that it is a little harder on the
capacitor due to ripple current caused by<br>
the little jumps in waveform. This is where the series inductance
will help the filtering a bit too.<br>
The added L will add that bit of needed impedance to complete the
L-C filter.<br>
<br>
The SW was sure a great inverter and has stood the test of time in
many applications.<br>
I think it if had a fourth and smaller section, it could have been
perfect but I would say<br>
it was heavy enough for even two people to lift.<br>
<br>
BTW, Heart Akerson passed away recently.<br>
<br>
He was a good man.<br>
<br>
🌜boB🌛<br>
<pre class="moz-signature" cols="72">
</pre>
<div class="moz-cite-prefix">On 9/9/2023 10:13 AM, William Miller
via RE-wrenches wrote:<br>
</div>
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<div class="WordSection1">
<p class="MsoNormal"><span
style="font-family:"Verdana","sans-serif";color:#1f497d">Friends:</span></p>
<p class="MsoNormal"><span
style="font-family:"Verdana","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-family:"Verdana","sans-serif";color:#1f497d">I
had an experience with a more modern inverter system
creating harmonic distortion on the output waveform during
generator run. That issue was documented <a
href="https://millersolar.com/MillerSolar/case_studies/25_GFI%20Tripping/GFI_Tripping.html"
moz-do-not-send="true">here</a>. The inverter system is
Outback Radian.</span></p>
<p class="MsoNormal"><span
style="font-family:"Verdana","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-family:"Verdana","sans-serif";color:#1f497d">A
few weeks ago I received a call from an individual that was
researching a similar problem. He called me to tell me he
had resolved his harmonic distortion problem by installing a
20 microfarad capacitor in the circuit that was having
problems.</span></p>
<p class="MsoNormal"><span
style="font-family:"Verdana","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-family:"Verdana","sans-serif";color:#1f497d">I
have read here about adding a capacitor to solve distortion
problems. The same client is still having problems running a
modern oven. I ordered a 20 microfarad, non-polarized
capacitor rated at 440 VAC. I will let you know if this
provides any resolution.</span></p>
<p class="MsoNormal"><span
style="font-family:"Verdana","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-family:"Verdana","sans-serif";color:#1f497d">William
Miller</span></p>
<p class="MsoNormal"><span
style="font-family:"Verdana","sans-serif";color:#1f497d"> </span></p>
<div>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d">Miller
Solar</span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d">17395
Oak Road, Atascadero, CA 93422</span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d">805-438-5600</span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"><a
href="http://www.millersolar.com/"
moz-do-not-send="true"><span style="color:blue">www.millersolar.com</span></a></span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d">CA
Lic. 773985</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
</div>
<p class="MsoNormal"><span
style="font-family:"Verdana","sans-serif";color:#1f497d"> </span></p>
<div>
<div style="border:none;border-top:solid #b5c4df
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
RE-wrenches [mailto:<a
href="mailto:re-wrenches-bounces@lists.re-wrenches.org"
moz-do-not-send="true" class="moz-txt-link-freetext">re-wrenches-bounces@lists.re-wrenches.org</a>]
<b>On Behalf Of </b>Ray via RE-wrenches<br>
<b>Sent:</b> Friday, September 8, 2023 10:12 PM<br>
<b>To:</b> <a
href="mailto:re-wrenches@lists.re-wrenches.org"
moz-do-not-send="true" class="moz-txt-link-freetext">re-wrenches@lists.re-wrenches.org</a><br>
<b>Cc:</b> Ray<br>
<b>Subject:</b> Re: [RE-wrenches] Power conditioner for
Trace inverter</span></p>
</div>
</div>
<p class="MsoNormal"> </p>
<p>That's about what to expect from the Psuedo Sine Wave that
the SWs put out. They shortened the list of problem
appliances significantly compared to "mod sine", but its a
stepped pyramid wave. Later inverters (Outback, Magnum) were
step waves too, but just more steps, which translates to less
trouble. </p>
<p><img id="_x0000_i1025"
src="http://www.solarray.com/Images/ImagesTGuides/Stepped%20Wave.png"
moz-do-not-send="true" border="0"></p>
<p>Trace SW waveform</p>
<p> </p>
<p>I have cured the "washer not running on the SW" once, by
adding a capacitor to the circuit. I can't recommend it 100%
from a safety stand point, but it worked for us. Some body
else chime in on the possible dangers? Cap blowing, fires,
shorts? Definitely needs to be in a metal enclosure.</p>
<p>I think its either get a different washer or get a different
inverter. At 22+ years, its slowly reaching the time to retire
those old SWs. </p>
<pre>Ray Walters</pre>
<pre>Remote Solar</pre>
<pre>303 505-8760</pre>
<div>
<p class="MsoNormal">On 9/8/23 2:53 PM, Dave Angelini Offgrid
Solar via RE-wrenches wrote:</p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<div id="signature">
<p class="MsoNormal">I would do a load test on the inverter.
It may have a damaged FET or two. They do not last
forever! Good Luck</p>
<pre> </pre>
<pre><strong><span style="font-size:12.0pt;font-family:"Courier New"">Dave Angelini Offgrid Solar</span></strong></pre>
<pre><strong><span style="font-size:12.0pt;font-family:"Courier New"">"we go where powerlines don't"</span></strong></pre>
<pre><strong><span style="font-size:12.0pt;font-family:"Courier New""><a href="http://members.sti.net/offgridsolar/" moz-do-not-send="true"> </a><a href="https://offgridsolar1.com/" moz-do-not-send="true"><span style="font-family:"Verdana","sans-serif";background:white;font-weight:normal">https://offgridsolar1.com/</span></a><a href="http://members.sti.net/offgridsolar/" moz-do-not-send="true"> </a></span></strong></pre>
<pre><strong><span style="font-size:12.0pt;font-family:"Courier New"">e-mail <a href="mailto:offgridsolar@sti.net" moz-do-not-send="true" class="moz-txt-link-freetext">offgridsolar@sti.net</a></span></strong></pre>
<pre><strong><span style="font-size:12.0pt;font-family:"Courier New"">text 209 813 0060</span></strong></pre>
</div>
<p> </p>
<p id="reply-intro">On 2023-09-08 12:30 pm, Darryl Thayer via
RE-wrenches wrote:</p>
<blockquote style="border:none;border-left:solid #1010ff
1.5pt;padding:0in 0in 0in
5.0pt;margin-left:0in;margin-right:0in">
<div id="replybody1">
<div>
<p class="MsoNormal">New washing machines are small
loads 400 Watts about.</p>
</div>
<p class="MsoNormal"> </p>
<div>
<div>
<p class="MsoNormal">On Fri, Sep 8, 2023, 2:27 PM
Darryl Thayer <<a
href="mailto:darylsolar1@gmail.com"
moz-do-not-send="true"
class="moz-txt-link-freetext">darylsolar1@gmail.com</a>>
wrote:</p>
</div>
<blockquote style="border:none;border-left:solid #cccccc
1.0pt;padding:0in 0in 0in
6.0pt;margin-left:4.8pt;margin-right:0in">
<div>
<p class="MsoNormal">I once used a ferro-resonant
transformer to clean up a sine wave. You have to
know the power.</p>
</div>
<p class="MsoNormal"> </p>
<div>
<div>
<p class="MsoNormal">On Fri, Sep 8, 2023, 1:59 PM
Chris Daum via RE-wrenches <<a
href="mailto:re-wrenches@lists.re-wrenches.org"
moz-do-not-send="true"
class="moz-txt-link-freetext">re-wrenches@lists.re-wrenches.org</a>>
wrote:</p>
</div>
<blockquote style="border:none;border-left:solid
#cccccc 1.0pt;padding:0in 0in 0in
6.0pt;margin-left:4.8pt;margin-right:0in">
<div>
<div>
<p class="v1msonormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Hi
folks:</span></p>
<p class="v1msonormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""> </span></p>
<p class="v1msonormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">I
have a fellow with a Trace SW5548,
purchased from us in 2001. It's been
working great for him all this time, but
the dilemma is he's gotten a new Hotpoint
washing machine, and its electronics don't
like the old inverter. Is there some sort
of power conditioner or 'line tamer'
available that will work for this
appliance's operation? Any ideas would be
greatly appreciated. He's rather loathe
to replace his inverter if he doesn't need
to. </span></p>
<p class="v1msonormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""> </span></p>
<p class="v1msonormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Best,</span></p>
<p class="v1msonormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""> </span></p>
<p><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Chris
Daum</span></p>
<p><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Oasis
Montana Inc.</span></p>
<p><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">406-777-4309
or 4321</span></p>
<p><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">406-777-4309
fax</span></p>
<p><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""><a
href="http://www.oasismontana.com/"
target="_blank" moz-do-not-send="true">www.oasismontana.com</a>
</span></p>
<p class="v1msonormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""> </span></p>
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