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--></style></head><body lang="EN-US" link="blue" vlink="purple"><div class="WordSection1"><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#1f497d">Rick:</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">If I had to guess I’d say you have a PV wiring fault. The PV positive may be shorted to ground. <br>This would make the inverter chassis negative in relation to ground. </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">The logic I use is to ask what is the likely source of DC at 195 volts? It is most likely the PV circuits, wouldn’t you say?</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">If the DC Fault is not eternal then it must be internal to the inverter. This could be a dangerous situation. I would proceed with caution.</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">Try completely isolating the PV from the inverter as a start.</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">Good luck.</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/">www.millersolar.com</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">re-wrenches-bounces@lists.re-wrenches.org</a>] <b>On Behalf Of </b>rick--- via RE-wrenches<br><b>Sent:</b> Tuesday, October 15, 2024 11:09 AM<br><b>To:</b> RE-wrenches<br><b>Cc:</b> <a href="mailto:rick@solshineenergy.com">rick@solshineenergy.com</a><br><b>Subject:</b> [RE-wrenches] Sol-Ark Gen Input</span></p></div></div><p class="MsoNormal"> </p><p class="MsoNormal">Back on the Sol-Ark topic again. We have a customer whose 12kW is measuring -195VDC to ground from L1 and L2 with the Gen breaker open. L1 to L2 = 0V. I know the Gen input can be configured as an output, but reading a high DC voltage to ground is concerning. The generator has never been run. System is operating normally. </p><div><p class="MsoNormal"> </p></div><div><p class="MsoNormal">Anyone have a Sol-Ark accessible that could verify what they’re reading?</p><div><p class="MsoNormal"> </p></div><div><p class="MsoNormal">Thanks in advance. </p></div><div><p class="MsoNormal"> </p><div><p class="MsoNormal">Rick Brown</p><div><p class="MsoNormal">Solshine Energy </p></div><div><p class="MsoNormal">Solar Electric Contracting Services </p></div><div><p class="MsoNormal"><a href="http://www.solshineenergy.com">www.solshineenergy.com</a></p></div><div><p class="MsoNormal">Roanoke, VA</p></div><div><p class="MsoNormal">Office: 540.235.3095</p></div><div><p class="MsoNormal">Mobile: 540.808.9502</p></div><div><p class="p1"><span class="s1">CONFIDENTIALITY NOTICE -- This email is intended only for the person(s) named in</span></p><p class="p1"><span class="s1">the message header. 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