Hello Wrenches We have a project taking a 480kw carport array feeding a Satcon 500kw inverter and upgrading it to 8- 50 kw SMA inverters. The SW 285's, in strings of 12, are combined in groups of 8 in the field then fed to the inverter DC input. In my experience SMA sells a rapid shutdown box with 4 inputs but only 2 outputs to pair with their Inverters that have 3 MPPT channels and they instruct you to combine the strings at the rapid shutdown box on the roof then install a pigtail on that wire at the inverter splitting it into two and sending the output of those two combined strings into two seperate MPPT channels. We would like to do the same with combiner panels in reverse. I spoke with SMA and they are checking with Germany but I knew I would find info here. Anyone with experience with this?
-- Gary Easton *Appalachian Renewable Power llc. * *Proud to Celebrate over 10 years in business* Stewart, Ohio 45778 NABCEP Certified Solar PV #031508-29 T: 740-277-8498 www.arp-solar.com “First they ignore you. Then they laugh at you. Then they fight you. Then you win.” ~Gandhi
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