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--></style></head><body bgcolor="white" lang="EN-US" link="blue" vlink="purple"><div class="WordSection1"><p class="MsoNormal"><span style="color:windowtext">We have done many high-leg delta installations with both single phase and three phase inverters here in the Bay Area.</span></p><p class="MsoNormal"><span style="color:windowtext"> </span></p><p class="MsoNormal"><span style="color:windowtext">Besides the normal stinger-leg type issues of trying to install a single phase 120 volt load across the high leg, I’m not aware of any particular problems. Certainly we see many existing old services where the high leg spots are left blank and only two of the three phases are used for branch circuits. It seems like perhaps this would cause load balancing type issue with the utility. I’m by no means familiar with the ins and outs of what causes transformer problems, however.</span></p><p class="MsoNormal"><span style="color:windowtext"> </span></p><p class="MsoNormal"><span style="color:windowtext">August</span></p><p class="MsoNormal"><span style="color:windowtext">Luminalt</span></p><p class="MsoNormal"><span style="color:windowtext"> </span></p><div><div style="border:none;border-top:solid #e1e1e1 1.0pt;padding:3.0pt 0in 0in 0in"><p class="MsoNormal"><b><span style="color:windowtext">From:</span></b><span style="color:windowtext"> RE-wrenches [mailto:<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>] <b>On Behalf Of </b>Jeff Clearwater<br><b>Sent:</b> Monday, June 05, 2017 8:19 AM<br><b>To:</b> RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>><br><b>Subject:</b> Re: [RE-wrenches] 4 Wire Delta</span></p></div></div><p class="MsoNormal"> </p><div><p class="MsoNormal"><span style="font-family:"Helvetica",sans-serif">Hi Drake,<br><br>Souther Cal Edison allowed us to do a High-Leg Delta - sharing this in the chance like William that at least you can say others have - can't imagine what their issue is.<br><br>Best,<br><br>Jeff<br><br>Drake wrote:<br><br></span></p><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"><p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-family:"Helvetica",sans-serif">Hello Wrenches,<br><br>I've recently learned that AEP, our utility company, believes it is unsafe to backfeed a 4 wire delta transformer. Does anyone know what the issues are?<br><br>Thanks,<br><br>Drake <br><br>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 href="http://athens-electric.com/">http://athens-electric.com/</a> </span></p><div id="DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2"><p class="MsoNormal"><span style="font-family:"Helvetica",sans-serif"> </span></p><table class="MsoNormalTable" border="1" cellpadding="0" style="border:none;border-top:solid #d3d4de 1.0pt"><tr><td width="55" style="width:41.25pt;border:none;padding:9.75pt .75pt .75pt .75pt"><p class="MsoNormal"><a href="https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=icon" target="_blank"><span style="border:solid windowtext 1.0pt;padding:0in;text-decoration:none"><img border="0" width="46" height="29" style="width:.4791in;height:.302in" id="_x0000_i1025" src="cid:image001.jpg@01D2DDD8.3F5A1B70" alt="Image removed by sender."></span></a></p></td><td width="470" style="width:352.5pt;border:none;padding:9.0pt .75pt .75pt .75pt"><p class="MsoNormal" style="line-height:13.5pt"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#41424e">Virus-free. <a href="https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=link" target="_blank"><span style="color:#4453ea">www.avast.com</span></a> </span></p></td></tr></table></div><pre>_______________________________________________</pre><pre>List sponsored by Redwood Alliance</pre><pre> </pre><pre>List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org">RE-wrenches@lists.re-wrenches.org</a></pre><pre> </pre><pre>Change listserver email address & settings:</pre><pre><a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a></pre><pre> </pre><pre>List-Archive: <a href="http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html">http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html</a></pre><pre> </pre><pre>List rules & etiquette:</pre><pre><a href="http://www.re-wrenches.org/etiquette.htm">www.re-wrenches.org/etiquette.htm</a></pre><pre> </pre><pre>Check out or update participant bios:</pre><pre><a href="http://www.members.re-wrenches.org">www.members.re-wrenches.org</a></pre><pre> </pre></blockquote><p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-family:"Helvetica",sans-serif"> </span></p><div><p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-family:"Helvetica",sans-serif">-- <br></span><span style="font-family:"Courier New"">Jeff Clearwater<br>Village Power Design<br>Renewable Energy Design & Installation</span><span style="font-family:"Helvetica",sans-serif"><br>Ecovillage Design Consultant</span><span style="font-family:"Courier New""><br><br>Former NABCEP Certified - 2003-2012<br>Licensed Solar Contractor in CA - C-46<br><a href="http://www.villagepower.com">www.villagepowerdesign.com</a><br><span class="postbox-detected-content">413-559-9763</span></span><span style="font-family:"Helvetica",sans-serif"><br>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</span></p></div></div></div></body></html>