Bill, To answer your first question, you can wait 45 minutes on hold before SMA hangs up on you. If you are waiting for a call back, good luck.
I have asked your MPPT question of SMA and they told me there was some tolerance if we went over mppt amp rating (two strings pushes it in many instances). They have also confirmed that we can put 100% of inverter POWER rating on a single MPPT without any clipping (leaving the other MPPT empty). I did not get into the MPPT ampacity clipping question as we have not exceeded that value by anything significant (and I would say 0.4 A is not significant). We have installed multiple projects that are just over the individual MPPT amp rating without needing to change any function of the inverter. The SMA inverters still operate well even if their technical support does not. My only complaint is sporadic, non-reproducible arc-fault events. Matt Matthew Partymiller Solar Energy Solutions LLC (877) 312-7456 m...@solar-energy-solutions.com On Fri, June 3, 2016 11:24 am, frenergy wrote: > Hey Folks, > > > I'm afraid getting through to SMA service has gone the path > of many others....how long can you wait and wait and..... My question: the > SB7000TL-US-22 is rated for up to 18 amps per MPPT input. What > happens at 18.4 amps? Does it just clip some power and continue operating > accepting the full rating of 18 amps? Is there a manual reset necessary? > > Thanks, > > > Bill > > > > -- > Feather River Solar Electric > Bill Battagin, Owner > 4291 Nelson St. > Taylorsville, CA 95983 > 530.284.7849 > CA Lic 874049 > www.frenergy.net > > > _______________________________________________ > 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.ht > ml > > 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: 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
