Kirk:
This sounds like a bad idea: Combing PV strings and then splitting them
and recombining them (what you essentially described, if I
understand). You need to bypass the built in fuses. Never having done
this, I can't offer advice on how to do so, but I am pretty sure your plan
is flawed. Questions arise, such as: Will you be installing fuses in the
built in holders? If so, how do you know they will evenly divide the current?
William
At 02:56 PM 11/14/2011, you wrote:
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Hello,
The Sunny Tower has four individual fuse holders on the DC input of each
inverter. I am combining the array output for each inverter in a combiner
box before the tower, so there is only a single positive, negative, and
gnd going to each inverter's DC input. I want to fan this input out to
each of the four dc fuses via a combiner bus with a single lug and prongs
which fit directly into each fuseholders' input, ala the Outback combiner
bus. Is there something similar made for the SunnyTower dc input? I have
not been able to talk to SMA yet about this. Thanks.
Kirk Herander
VT Solar, LLC
dba Vermont Solar Engineering
NABCEPTM Certified installer Charter Member
NYSERDA-eligible Installer
VT RE Incentive Program Partner
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