Hey Jay, From my understanding the OCPD needs to be within 18 inches from the positive terminals... some will use class T fuses instead of breakers for cost...
On Dec 3, 2017 7:10 PM, "jay" <[email protected]> wrote: > 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 <[email protected]> > 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: [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]. > org/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
