I had a similar issue once with a Sol-Ark 12k, triple stack. The issue ended up being that the phase relationship got reversed during the installation. AC out and AC in need to be carefully phased out. I don't really understand why, but it's an easy thing to check.
Let us know what you find. Good luck On Thu, Oct 26, 2023, 9:03 AM White, Will via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Don, > > > > Your Fluke clamp meter should indicate the current flow by showing a > negative or positive current reading unless you’ve got an old meter. On the > top of the meter inside the jaw is an arrow that points in the direction of > current flow if the reading is positive. If it’s negative, the current is > flowing in the opposite direction of the arrow. > > > > Thanks, > > Will > > > > *From:* RE-wrenches <re-wrenches-boun...@lists.re-wrenches.org> *On > Behalf Of *don energysolarnow.com via RE-wrenches > *Sent:* Wednesday, October 25, 2023 5:17 PM > *To:* re-wrenches@lists.re-wrenches.org > *Cc:* don energysolarnow.com <d...@energysolarnow.com> > *Subject:* [EXTERNAL] [RE-wrenches] Sol-Ark phantom loads > > > > *CAUTION:* This email originated from outside of the organization. Do not > click links or open attachments unless you recognize the sender and know > the content is safe. > > > > Just spent yesterday debugging a Sol-Ark 15 kW inverter phantom load > weirdness. > > 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. > > 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. > > 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. > > Oddly, this phantom loading decreased with decreasing PV production later > in the day. > > 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. > > Has anyone seen an inverter try to mix import and export on different legs > by creating phantom loads? > > > > Don Barch > > Energy Solar > > > > > > > ------------------------------ > > Please be advised that this email may contain confidential information. If > you are not the intended recipient, please notify us by email by replying > to the sender and delete this message. > _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > >
_______________________________________________ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
