We have seen something very close, it appears that the gwnny will always win this war. Jerry On Jan 29, 2016 1:14 PM, "Jason Szumlanski" < ja...@floridasolardesigngroup.com> wrote:
> I'm looking at two Eaton PV250 inverters that failed simultaneously as far > as we know (not my install). Everything checked out normal, but no display > and no power output. I suspect both boards are bad. Upon digging into the > scenario I discovered that the owner had a whole-house generator transfer > switch installed a while back, after the PV was installed. The PV is a load > side interconnection, so calamity should have been expected. > > What are the odds that the generator caused the inverter boards to fail? I > was always under the impression that it was more likely for a generator > component to be damaged than an inverter component in this scenario. It > could be coincidence and the inverters may have just failed around the same. > > Note: ~10kW PV, 25kW Generator > > Side note: The PV was interconnected at a 50A breaker on a 200A bus bar in > the main distribution panel and somehow passed inspection by an AHJ that > shall not be named... Over 120%, and also not the correct OCPD rating > anyway for these two inverters. Passed plan review and inspection... > Contractor out of business... surprise! > > > Jason Szumlanski > Florida Solar Design Group > > _______________________________________________ > 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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