Sounds like you are working with a 120/208V system? What do you get from line to ground?
Benn Kilburn SkyFire Energy 780-906-7807 > On Feb 13, 2018, at 9:53 AM, Eric Stikes <e...@harvesthesun.com> wrote: > > I am troubleshooting a SolarEdge system with 9kW 3-Ph inverters. The system > is working OK but production is a bit low. There may be other factors and I > am looking into those too but I want to sort out this one issue: I am not too > familiar with 3-phase and when I ask SolarEdge about best way to connect to a > 3-Ph delta, they advise to stay away from the stinger and connect a 1-ph > inverter to L1 & L2 only, and that has worked out fine. However, This system > has a 3-ph inverter and L1 to L2 is reading about 215 volts from the utility. > L1 to L3 is the same and L2 to L3 is also about 215 volts. Perhaps this is a > 3-Ph WYE with just a higher than typical voltage coming from the utility > t-former. My thought here is that maybe the 3-ph inverters are only providing > 2/3 power back to the utility, or if there's some way to get to 240v L-L. The > existing loads are serviced by both 2-pole and 3-pole breakers but everything > is pretty much 1-phase I believe. I'm wondering if I should consider > reconfiguring the system with 1-Ph inverters tied in to only 2 of the utility > legs. I asked SolarEdge weeks ago but getting nothing from them. Any > thoughts? Thanks! > > Eric Stikes > SunHarvest Solar > +1 (530) 798 - 3738 > www.harvesthesun.com > _______________________________________________ > List sponsored by Redwood Alliance > > 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 > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org >
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