03-01-2013, 04:24 PM
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#4
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Montana Master
Join Date: Aug 2010
Location: Wheatland
Posts: 675
M.O.C. #10623
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Quote:
quote:Originally posted by Alwims
Quote:
quote:Originally posted by 7.3Ford
Alan,
You want to put the odd ball in series with the other three sets in parallel.
The following in Parallel 128 + 128 + (two 68 in series) (three 24V sets in parallel.
Then put the last 68 in series with the three parallel groups, which will get you 36V.
If you try to put a 12V in parallel with 24V, it will pull down the 24V panels to 12-16V and you will loose most of you power.
Everything in parallel must be same voltage.
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Didn't realize that although I think you may have told that to me before. How 'bout this,(1),128w-24v + 68w-12v = 36 volts, (2),128w-24v + 68w-12v = 36 volts, (3),68w-12v + 68w-12v + 68w-12v = 36 volts. All 3 sets in parallel to the MPPT.
I really should get more sleep before I try to do this stuff, duh.
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