Eric, Marvin Hamon, a PE in CA, wrote an article for SolarPro magazine on this topic that may be of assistance:
http://solarprofessional.com/article/?file=SP3_1_pg66_Hamon&search= David Brearley, Senior Technical Editor SolarPro magazine NABCEP Certified PV Installer david.brear...@solarprofessional.com Direct: 541.261.6545 On 4/25/11 1:01 PM, "Eric Thomas" <solarepiph...@gmail.com> wrote: > While commercial solar work is newer to me, im surprised this hasn't been > addressed very much in our forum: Interconnecting single phase inverters to > three phase services. We are laying out a 6kW system using Silicon Energy > Cascade modules and Aurora PVI inverters (either 2 or 3 PVI 3.0's). The > challenge is finding a way to easily tie two of these inverters into the > existing 3phase service. I've been reading up on Sunny Boys tech notes and on > this forum about imbalance and such, but im still not comfortable enough with > tie in. Due to the string configuration options, I can add a third inverter > and use a three phase subpanel to aggregate the inverters then tie them in. > But adding a third inverter seems like a goofy solution. In looking at > available equipment, transformers, phase converters etc, I can't seem to find > the right fit. Any ideas? > > This system does not have a three phase inverter option due to Made in WA > req's. > > Thanks! > > Eric Thomas > Solar Epiphany LLC > > > _______________________________________________ > List sponsored by Home Power magazine > > List Address: RE-wrenches@lists.re-wrenches.org > > Options & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org
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