So I”m curious about the location of your breakers. Can you elaborate about that?
Thanks jay peltz power > On Dec 2, 2017, at 1:51 PM, Gary Willett <g...@icarussolarservices.com> wrote: > > JERRY: > > I always specify separate breakers per string (175A or 250A, depending on > string ampacity) mounted as close to the battery bank as possible. And I > require that if I am to be engaged for maintenance (planned or unplanned) > after commissioning. Shunt-trip breakers facilitate meeting Rapid Shutdown > requirements. > > Separate string breakers make battery maintenance and trouble shooting so > much easier and well worth the first cost investment. Especially so when you > have bad or weak cells/batteries, uneven string discharge/charge current, and > need to isolate the culprit(s). > > If I have a maintenance arrangement with the customer, individual string > breakers allow me to quickly/safely perform string/battery SOH (state of > Health) testing with an internal resistance tester and/or a load test on > individual batteries without removing wiring/busbars/etc. > > Regards, > > Gary Willett PE > Icarus Engineering / Solar Services LLC > > _______________________________________________ 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
