<x-html>
<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
<html>
Hey everyone,
<p>Two questions for the list here:
<p>I don't want to whip a dead horse, but went to look at a job today and
they had 2, 75 amp Todd chargers in series feeding a 1250 AH bank of Trojan
T 105's. The inverter is a trace mod sine wave with charger (SB option),
so this makes little sense as when chargers are added like this in parallel,
it seems the more of them you add, the less you get out of each one. The
small voltage boosting transformers in series with the generator are much
more effective at increasing charging output from mod sine wave inverters
and the price is less also. The question I have is: does series-ing 2,
75 amp switching chargers like these Todd's work? It seems to me that Richard
said he had tried this and had marginal results.
<p>Here's a new one I've never seen before... the system above has 16 identical
Kyocera J51 panels... as they are 12 volts each they need to be in series
to get 24 volts out. Generally I connect a bunch of individually series
24 volt strings into parallel to feed the load... this installer paralleled
2 sets of 8, 12 volt panels together and then series these to get 24 volts...
probably the same result, but I know there is some reason this is not done
when combining batteries for higher voltage, and I wonder if the same reasoning
holds for PV combinations as well. Anyone got any info on this wiring
style, or pro's or con's for each variation?
<p>Thanks,
<p>TC
<br>--
<br>Todd Cory
<br>KE6SXS
<br>toddcory@jps.net
<br>Bald Mountain Solar
<br>P.O. Box 689
<br>Mt. Shasta, Ca. 96067
<br>(530) 926-1079
<br> </html>
- - - - - - -
To send a message to the list use: <RE-wrenches@topica.com>
To view an archive of previous messages go to: <http://www.topica.com/lists/RE-wrenches/
To unsubscribe send an email message to: <RE-wrenches-unsubscribe@topica.com>
Hosted by Home Power magazine: <http://www.homepower.com>
for info contact: <michael.welch@homepower.com>
________________________________________________________________________
Start an Email List For Free at Topica. http://www.topica.com/register
</x-html>