I may have spoken too soon on this. It turns out that the LSOB system just does not work with PV charge controllers. The Princeton Power Systems DRI-10 inverter has charge controllers built in, which is why the system was not working.
Cheers, Dave *Dave Tedeyan, PE* Senior Engineer | Taitem Engineering, PC 110 South Albany Street | Ithaca, NY 14850 o. *607.277.1118 x121* f. 607.277.2119 www.taitem.com Solar • Sustainability • Energy • Design B-Corporation Best for the World 2018 Honoree On Thu, May 30, 2019 at 9:15 AM Dave Tedeyan <[email protected]> wrote: > Just a note about midnite's SOB rapid shutdown system. It does not seem to > work with all inverters. I was recently helping someone with a Princeton > Power Systems inverter add in rapid shutdown. There was some kind of line > noise coming from the inverter that was causing the rapid shutdown system > to not work at all. It held the string voltage down even when it should not > have. The only way to get the string voltage back up was to physically > disconnect the PV from the inverter. So we had to pull the rapid shutdown > and will need to find another solution. > > Cheers, > Dave > > *Dave Tedeyan, PE* > Senior Engineer | Taitem Engineering, PC > > 110 South Albany Street | Ithaca, NY 14850 > o. *607.277.1118 x121* f. 607.277.2119 > www.taitem.com > > Solar • Sustainability • Energy • Design > B-Corporation Best for the World 2018 Honoree > > > On Wed, May 29, 2019 at 7:07 PM Rick Brown < > [email protected]> wrote: > >> Jerry, >> >> Check out Midnight Solar’s Rapid Shutdown Shut Off Box (SOB). >> >> http://www.midnightsolar.com/ >> >> rick brown >> SolShine Energy Alternatives, LLC >> Electrical & Solar Contracting Services >> www.SolShineEnergyAlternatives.com >> Check, Virginia 24072 >> 540.808.9502 >> >> VA Class A Contractor Lic# 2705147660 >> VA Master Electrician Lic# 2710062762 >> VA Alternative Energy Systems Installer >> NABCEP Certified PV Installation Professional 110112-21 >> >> On May 29, 2019, at 5:44 PM, Jerry Caldwell <[email protected]> >> wrote: >> >> Dear Wrenches, >> >> We are installing a system for a project we did not design. The plans >> specify 5 Ginlong Solis inverters. Ginlong does not make their own rapid >> shutdown device, so units by Innovative Solar Products have been specified. >> The Innovative Solar rapid shutdowns are made to order and will take 4 >> weeks (not good for us). >> >> Does anyone know another mfr that makes rapid shutdown devices that are >> compatible with other mfrs inverters? >> >> Thanks, >> >> Jerry Caldwell >> Redwood Sun >> >> _______________________________________________ >> List sponsored by Redwood Alliance >> >> List Address: [email protected] >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/[email protected]/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> >> _______________________________________________ >> List sponsored by Redwood Alliance >> >> List Address: [email protected] >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/[email protected]/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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