<p dir="ltr">Phase loss relay that opens contactor(s) serving the inverters. That will shut everything down if the utility drops a phase. </p>
<p dir="ltr">-James Jefferson Jarvis<br>
APRS World, LLC<br>
<a href="http://www.aprsworld.com">http://www.aprsworld.com</a><br>
+1-507-454-2727</p>
<p dir="ltr">(this message was sent from my cell phone ... my apologies for any spelling errors)</p>
<div class="gmail_quote">On Sep 24, 2013 10:12 AM, "Karl Jaeger" <<a href="mailto:kjaeger@lightwavesolar.com">kjaeger@lightwavesolar.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div lang="EN-US" link="blue" vlink="purple">
<div>
<p class="MsoNormal">Greetings Esteemed Wrenches,<u></u><u></u></p>
<p class="MsoNormal">We are building a 35.75kW project with (6) Power One 6000’s. The service is a 240 delta. The utility is requiring (late in the game) that if one leg of the service is lost, all inverters must shut down. Of course, we have two inverters
that do not shut down in that circumstance because they are only tied into the other two phases. SMA has a good (cheap) option to deal with this, SMA Power Balancers. With other inverters this can be accomplished by installing an ATS with an integrated controller
by programming in the unacceptable phase imbalance (expensive). Does anyone have experience with this requirement and/or have a good (cheaper) solution?<u></u><u></u></p>
<p class="MsoNormal">Thank you in advance!<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Karl Jaeger<u></u><u></u></p>
<p class="MsoNormal">LightWave Solar <u></u><u></u></p>
<p class="MsoNormal">Nashville, TN<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
</div>
<br>_______________________________________________<br>
List sponsored by Home Power magazine<br>
<br>
List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org">RE-wrenches@lists.re-wrenches.org</a><br>
<br>
Change email address & settings:<br>
<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><br>
<br>
List-Archive: <a href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org" target="_blank">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a><br>
<br>
List rules & etiquette:<br>
<a href="http://www.re-wrenches.org/etiquette.htm" target="_blank">www.re-wrenches.org/etiquette.htm</a><br>
<br>
Check out participant bios:<br>
<a href="http://www.members.re-wrenches.org" target="_blank">www.members.re-wrenches.org</a><br>
<br>
<br></blockquote></div>