<div dir="ltr">Ray; <div>I've even had problems with Magnums and Outbacks not working with certain GFCI outlets.I usually just avoid installing GFCIs in tiny, remote off-grid systems designed for a specialty application with no electrical inspector involved or required. GFCIs cause all kinds of mischief with equipment and are a phantom load. I put them in the same league as hard-wired 120VAC smoke detectors off the grid.</div><div><br></div><div>Exeltech inverters are certainly the most quiet RFI-wise, but the low efficiency, $ and no-load draw are a bummer.</div><div><br></div><div>With William's application, I'd avoid the inverter entirely and go DC, then you have no GFCI or AC codes. If the sat link DC input specs allow 36VDC input, you have many off-the shelf options available for a boost/buck power supply from 24VDC. Digikey even.</div></div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><span style="font-size:12.8000001907349px">Dan Fink</span><div style="font-size:12.8000001907349px">Adjunct Professor of Solar Energy Technology, Ecotech Institute</div><div style="font-size:12.8000001907349px">IREC Certified Instructor™ for: </div><div style="font-size:12.8000001907349px">~ PV Installation Professional</div><div style="font-size:12.8000001907349px">~ Small Wind Installer</div><div style="font-size:12.8000001907349px">Executive Director, Buckville Energy</div><div style="font-size:12.8000001907349px">NABCEP Registered Continuing Education Providers™<br><a href="tel:970.672.4342" value="+19706724342" style="color:rgb(17,85,204)" target="_blank">970.672.4342</a></div><br> </div></div></div></div></div></div></div></div></div></div>
<br><div class="gmail_quote">On Mon, Mar 28, 2016 at 4:47 PM, Ray Walters <span dir="ltr"><<a href="mailto:ray@solarray.com" target="_blank">ray@solarray.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
What about building a 30 vdc system (5 x 6v batteries in series)
and adjust the settings on a Midnite Classic to work with that? How
tight does the 30 vdc output need to be?<br>
<br>
On inverters, I've had trouble with the Suresine, basically not
working with GFCI outlets.<br>
I keep trying different models of GFCIs, but they keep randomly
tripping on 2 different systems. <br>
Morningstar's list of "approved" GFCIs doesn't list any currently
manufactured models, while calls to their tech support yields "Oh,
that shouldn't be a problem, it should work with all GFCIs..."<br>
Way too many free trips out trying to fix this, so I may have to
abandon GFCI protection, or replace the inverters. <br>
My suggestion for that small load: Exeltech 125. Better than grid
waveform, and I recently pulled one out of corroded outdoor
enclosure almost 15 years old: it looked terrible, but was still
working fine. It would also be lower cost and fit in a smaller
enclosure.<br>
<pre cols="72">R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
<a href="tel:303%20505-8760" value="+13035058760" target="_blank">303 505-8760</a></pre><div><div class="h5">
<div>On 3/28/2016 2:24 PM, Dan Fink wrote:<br>
</div>
</div></div><blockquote type="cite"><div><div class="h5">
<div dir="ltr">Hi William;
<div>30VDC is kind of odd, but 36VDC is common. The folks at
Solar Converters might be able to fix you up with a custom
one, or perhaps 36V is within the sat unit's input range.</div>
<div>As for the inverter, I've never gone wrong with the
Morningstar SureSine. Slick little unit.<br>
<div class="gmail_extra"><br clear="all">
<div>
<div>
<div dir="ltr">
<div>
<div dir="ltr">
<div>
<div dir="ltr">
<div>
<div dir="ltr">
<div><span style="font-size:12.8000001907349px">Dan
Fink</span>
<div style="font-size:12.8000001907349px">Adjunct
Professor of Solar Energy Technology,
Ecotech Institute</div>
<div style="font-size:12.8000001907349px">IREC
Certified Instructor™ for: </div>
<div style="font-size:12.8000001907349px">~
PV Installation Professional</div>
<div style="font-size:12.8000001907349px">~
Small Wind Installer</div>
<div style="font-size:12.8000001907349px">Executive
Director, Buckville Energy</div>
<div style="font-size:12.8000001907349px">NABCEP
Registered Continuing Education
Providers™<br>
<a href="tel:970.672.4342" value="+19706724342" style="color:rgb(17,85,204)" target="_blank">970.672.4342</a></div>
<br>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<br>
<div class="gmail_quote">On Mon, Mar 28, 2016 at 1:44 PM,
William Miller <span dir="ltr"><<a href="mailto:william@millersolar.com" target="_blank"></a><a href="mailto:william@millersolar.com" target="_blank">william@millersolar.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div link="blue" vlink="purple" lang="EN-US">
<div>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif"">Friends:</span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif""> </span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif"">I
am designing a satellite data interface for a
large off-grid system for a state highway
department facility. We will be using the
Outback Optics data capabilities along with
equipment manufactured by Control by Web.</span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif""> </span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif"">I’d
like to run the satellite system on a battery
power source so I can hope to use it when we
need it most, when the power is down. We have a
separate 24 volt battery bank remaining from a
previous generator control system. The
satellite system operates on 30 VDC at 2 amps.</span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif""> </span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif"">My
first choice is to find a DC to DC converter
from nominal 24 volts. Do any of you know of
one that you could recommend?</span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif""> </span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif"">My
second choice is to use a small inverter. Can
anyone suggest one at this small wattage? I
don’t know how good the power supply is at
rejecting waveform distortion so I presume an
inverter needs to be somewhat close to a sine
wave.<br>
<br>
</span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif"">Thanks
in advance.</span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif""> </span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif"">William
Miller</span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif""> </span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif""> </span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"><img src="cid:part3.07090108.01010501@solarray.com" alt="Gradient Cap_mini" height="28" width="64"><br>
Lic 773985<br>
<a href="http://www.millersolar.com/" target="_blank">millersolar.com</a><br>
<a href="tel:805-438-5600" value="+18054385600" target="_blank">805-438-5600</a></span></p>
<p class="MsoNormal"> </p>
</div>
</div>
</blockquote>
</div>
<br>
</div>
</div>
</div>
<br>
<fieldset></fieldset>
<br>
</div></div><span class=""><pre>_______________________________________________
List sponsored by Redwood Alliance
List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org" target="_blank">RE-wrenches@lists.re-wrenches.org</a>
Change listserver email address & settings:
<a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org" target="_blank">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a>
List-Archive: <a href="http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html" target="_blank">http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html</a>
List rules & etiquette:
<a href="http://www.re-wrenches.org/etiquette.htm" target="_blank">www.re-wrenches.org/etiquette.htm</a>
Check out or update participant bios:
<a href="http://www.members.re-wrenches.org" target="_blank">www.members.re-wrenches.org</a>
</pre>
</span></blockquote>
<br>
</div>
<br>_______________________________________________<br>
List sponsored by Redwood Alliance<br>
<br>
List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org">RE-wrenches@lists.re-wrenches.org</a><br>
<br>
Change listserver email address & settings:<br>
<a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org" rel="noreferrer" target="_blank">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><br>
<br>
List-Archive: <a href="http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html" rel="noreferrer" target="_blank">http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html</a><br>
<br>
List rules & etiquette:<br>
<a href="http://www.re-wrenches.org/etiquette.htm" rel="noreferrer" target="_blank">www.re-wrenches.org/etiquette.htm</a><br>
<br>
Check out or update participant bios:<br>
<a href="http://www.members.re-wrenches.org" rel="noreferrer" target="_blank">www.members.re-wrenches.org</a><br>
<br>
<br></blockquote></div><br></div>