All inverters can be paralled on the output side, AC side no problem, it is the inputs that you can not Parallel--This will distroy the inverter DT
--- On Fri, 6/26/09, Randy Hatch <ra...@third-sun.com> wrote: > From: Randy Hatch <ra...@third-sun.com> > Subject: Re: [RE-wrenches] stacking grid tied Outback > To: jry...@netscape.com, "'RE-wrenches'" <re-wrenches@lists.re-wrenches.org> > Date: Friday, June 26, 2009, 7:20 AM > Jeff, > > Could you expand on this comment, please: > > "We parallel Fronius inverters all the time with no problem > as long as wire > runs are short." > > Perhaps I am confused. How do you "parallel" the > inverters? > > Does the method satisfy 690.64 (B)(1) requirements for > Dedicated Overcurrent > and Disconnect? > > I am using NEC 2008. Thanks for clarification. > > Thank you, > > Randy Hatch > NABCEP #091308-28 > ra...@third-sun.com > www.third-sun.com > p740-597-3111 x28, f740-597-9775 > > Clean Energy - Expertly Installed > Please consider the environment before printing this > e-mail. > > > -----Original Message----- > From: re-wrenches-boun...@lists.re-wrenches.org > > [mailto:re-wrenches-boun...@lists.re-wrenches.org] > On Behalf Of Jeff Yago > Sent: Thursday, June 25, 2009 4:57 PM > To: RE-wrenches > Subject: Re: [RE-wrenches] stacking grid tied Outback > > > Got a call to check out an existing, but distant system > that a elderly > couple spent over $200K for a pv/battery/wind system and > system never worked > right. Local electrician called to advise many design > and wiring problems > and suspects orignial installer had no clue. > > I have not seen the system yet, but was told he has ten > (10) Outback > inverters, 2 configured for sell back and 8 not. He > said they called > Outback and received 2 differnet recommendations concerning > conversion of > remaining 8 inverters to grid tie. Was told they > could be factory > re-configured to all sell back, but can only stack two > inverters in sell > mode. > > If true, why can't you just parallel multiple stacks of > dual inverters and > just feed each pair to their own circuit breaker in the > main panel? We > parallel Fronius inverters all the time with no problem as > long as wire runs > are short. > > Bottom line - note sure what we will suggest until I check > it out tomorrow, > but wanted to be able to advise which answer they received > from Outback was > correct. > > Thanks, > > Jeff Yago > > _____________________________________________________________ > Netscape. Just the Net You Need. > _______________________________________________ > 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 > > _______________________________________________ > 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 > > _______________________________________________ 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
