Wrenches Have you looked at cell fractures, l just replaced a module running on enphase and it had fractures in the cell VOC was fine but under load there was just over 50% power. I have also had ribbin connection fail, you might be able to see burn marks un the back of the modules. Jerry On Nov 18, 2015 12:17 PM, "Jay" <[email protected]> wrote:
> Hi steve. > > Is the output from each string of 11 the same? > Have you tried ruining 1 string at a time? > > Jay > > > Sent from my iPhone > > On Nov 18, 2015, at 11:14 AM, Steve Jefferson < > [email protected]> wrote: > > Afternoon wrenches, > > > > I have a friend who I helped install second hand modules onto a pergola > structure at their home. > > > > The system is as follows: > > > > 44 – Siemens SP-150 > > 1 – SMA SB6000US-12 (XFMR unit) > > > > Since install, they have not produced half of what they should be. I have > tested the diodes and they seem to be good, there were a couple that tested > questionable, so they were replaced. > > VOC is good, but it seems that under load the system goes to garbage. > > > > I am at a loss of what/how to test anything else that may determine cause. > > > > Would a PV Analyzer help? Would there happen to be anyone in the > Sacramento area with one who could come to the site? Obviously the customer > will pay for their time. > > > > Thanks in advanced. > > > > SMA America, LLC > > Steve Jefferson > > Service Line Supervisor > > 3925 Atherton Ave > > Rocklin, CA 95765 - 3714 > > U.S.A. > > Tel: +1 916 625 3185 (direct) > > Fax: +1 916 625 0871 > > Mobile: +1 916 622 4253 > > Email: [email protected] > > www.SMA-America.com <http://www.sma-america.com/> > > > > <image001.png> > <http://www.youtube.com/watch?v=yQWzPuyqhzo&feature=youtu.be> > > > > This email and any attachments thereto may contain SMA America, LLC > confidential, privileged and private material for the sole use of the > intended recipient. Any review, copying, or distribution of this email (or > any attachments thereto) by others is strictly prohibited. If you are not > the intended recipient, please contact the sender immediately and > permanently delete the original and any copies of this email and any > attachments thereto. Thank you. > > > > > > _______________________________________________ > 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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