Luke:
Maximum inverter output will occur rarely. Most of the time the
inverter(s) will be running at lesser output amps. One approach is to size
wiring for a certain percentage of the average operating amps. What is the
average operating amps? One way I have found to calculate this is use PV
Watts and invoke the tool that gives a data set of hour by hour
results. This includes night time hours. Delete all values with a zero
output and average the rest. I found a daily bell curve that is about 50%
of full power. Your results may vary.
Good luck,
William Miller
At 07:51 PM 11/16/2011, you wrote:
1: Given the significant cost of the AC cabling for this situation, what
is the most appropriate number to use for current in running voltage drop
calcs? The wiring is going to be significantly oversized to achieve a ~1%
VD at this length. I could use the max rated output current of the
inverter (120A), but that seems like it might be overly conservative. Opinions?
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