<div dir="ltr">Don,<div><br></div><div>We have had this happen when you auto calibrate the CT's and the CTs aren't properly positioned to see exported energy from the Sol-Ark inverter. Couple other times it took several calibrations and messing with opening and closing the cts and double checking splices on extensions of CTS.</div><div><br></div><div>Good luck!<br clear="all"><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div><br></div><div><br></div><div dir="ltr"><span style="border-collapse:collapse;color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13px"><span><div dir="ltr" style="margin-left:0pt" align="left"><table style="border:none;border-collapse:collapse"><colgroup><col width="181"><col width="459"></colgroup><tbody><tr style="height:84pt"><td style="vertical-align:middle;padding:5pt 5pt 5pt 5pt;overflow:hidden"><p dir="ltr" style="line-height:1.38;text-align:center;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><span style="border:none;display:inline-block;overflow:hidden;width:164px;height:80px"><img src="https://lh4.googleusercontent.com/R2pJqufzOLnyX7mZh5-xO1OEIH4lQB3r3iSLTQTEqvrIu-49s-fpYbAu3ULVxV-xeY78oSboKRb8RrrU5ZLCk5Mu4D-srDEsQrNBafl0FFwF4Yt6R3PmdIshOxSDcBolRWFLJYuVRIrXqZFlv9j-avA" width="164" height="80" style="margin-left:0px;margin-top:0px"></span></span></p></td><td style="vertical-align:top;padding:5pt 5pt 5pt 5pt;overflow:hidden"><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Figtree,sans-serif;color:rgb(0,0,0);background-color:transparent;font-weight:700;vertical-align:baseline;white-space:pre-wrap">Roland Shackelford</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Figtree,sans-serif;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">President / Owner </span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="background-color:transparent;color:rgb(0,0,0);font-family:Figtree,sans-serif;font-size:11pt;white-space:pre-wrap">NABCEP PVIP #091209-162</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="background-color:transparent;font-size:11pt;font-family:Figtree,sans-serif;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap">O 808.775.7410 | M</span><span style="background-color:transparent;color:rgb(0,0,0);font-family:Figtree,sans-serif;font-size:11pt;white-space:pre-wrap"> 808.938.9239 | </span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="background-color:transparent;color:rgb(0,0,0);font-family:Figtree,sans-serif;font-size:11pt;white-space:pre-wrap">45-487 Lehua St Honokaa, HI 96727</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Figtree,sans-serif;color:rgb(0,0,0);background-color:transparent;font-style:italic;vertical-align:baseline;white-space:pre-wrap">Power Solutions for Generations </span><a href="https://www.renewablenergy.com/" target="_blank"><span style="font-size:11pt;font-family:Figtree,sans-serif;color:rgb(17,85,204);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Renewable Energy Services, Inc.</span></a></p></td></tr></tbody></table><br></div></span></span></div><div dir="ltr"><div><span style="border-collapse:collapse"><div style="font-family:arial,sans-serif;font-size:13px;color:rgb(34,34,34)"><div><br></div><div><span style="border-collapse:collapse;font-size:13px"><span style="color:rgb(32,33,36);font-family:Arial,Helvetica,sans-serif;font-size:small">" Where there is integrity, there will be trust. Where there is trust, there will be an atmosphere for success." - Sadhguru</span></span></div></div></span></div></div></div></div></div></div></div></div></div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Oct 25, 2023 at 11:18 AM don <a href="http://energysolarnow.com">energysolarnow.com</a> via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="msg-697396480798534623">
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Just spent yesterday debugging a Sol-Ark 15 kW inverter phantom load weirdness.</div>
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With Work Mode set at Limited Power To Home it seemed to get a bit schizo, pulling around 6kW in from the grid on leg L1 and around 13 kW on the other L2 leg, with 7kW of PV added. No house loads were involved. The monitoring called this a 13 kW load. </div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">I measured something like 50 amps on L2 and neutral; 120 Volts on L1 and 125 Volts on
L2 at the house. My Fluke clamp-on amp meter does not say which way AC current is flowing. The utility meter showed it as power coming in.</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">At the main meter panel about 150 ft away from the house the voltages were better balanced;
probably due to proximity to the utility transformer. Those leg voltages were balanced when the inverter was shut down.</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">Oddly, this phantom loading decreased with decreasing PV production later in the day.</span></div>
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Working with Sol-Ark tech support we (of course) downloaded new firmware, then changed Work Mode to Limited Power To Load. After a couple of resets this had the effect of allowing the inverter to cover just the loads in the battery-backed subpanel; not those
at the house main panel where the CT sensors are located. The phantom 13kW load has not recurred.
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Has anyone seen an inverter try to mix import and export on different legs by creating phantom loads?</div>
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Don Barch</div>
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Energy Solar</div>
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