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Old 04-14-2007, 10:31 PM   #11
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Cool drawing. What CAD program did you do that in? I know this is going to sound dumb, but I have only seen a few that make ground symbols so pretty short of a few dedicated circuit CAD programs I've used.

Speaking of which...your inverters are going to need grounds, preferably directly to the batteries, but that's a small detail that I think probably was just missed in an otherwise very nice drawing.
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Old 04-14-2007, 10:46 PM   #12
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I did that one in visio. It has just about any stencil you could want.

I went ahead and drew the grounding for the inverters, and also moved the Isolator over to the same battery the controller is using to charge the bank.
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Old 04-14-2007, 11:03 PM   #13
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You will wnat ot put a large fuse between the battery bank and the inverters. Your inverters will dictate what sizes you will need. Also you have your water pump and fridge running off the inverter, these are generally 12v. Are you going to be running a 12 v leg? Nice pics.

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Old 04-15-2007, 12:12 AM   #14
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I need to learn more about the different CAD programs out there. No really, I do...I want to be an engineer "someday" and my experience is limited to Solidworks, Autocad, and Pro/e and I'm not the LEAST bit proficient in any of them. I CAN make a mean drawing in Paint though....

Agreed on the fuse. I'm a hypocrite because I don't have one yet, but that was more a matter or time than anything else. The fuse on the power wire protects your bus...the fuse on the inverter itself protects the inverter. The bus costs a lot more than the inverter.....Just food for thought.
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Old 04-15-2007, 01:02 AM   #15
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Quote:
Originally Posted by the_experience03
The bus costs a lot more than the inverter..
Not for some of us
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Old 04-15-2007, 02:08 AM   #16
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Ok, ok....bus=$1250, inverter=$1999.99

Of course this is a 24 vdc inverter on a 12vdc rig....
http://www.4lots.com/browseproducts/...--24-Volt.html
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Old 04-15-2007, 10:50 AM   #17
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I added the fuses in front of the inverters, and the 12 volt appliances. I also separated the 12 volt from the 110 volt appliances. Do I also need fuses between each battery when I wire them in parallel?

http://afriendlyface.com/solar-system.jpg

Thanks again for all ya'lls help.
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Old 04-15-2007, 01:07 PM   #18
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Nice drawing
Some suggestions
The panels usually go to a circuit breaker box (your on ond off switch for the panels and you will need one) called a combiner then to the controller.
The negative wire needs to be added from the panels thru to the batteries
When connecting to battery bank you should take the positive off one end of the battery bank and take the nevative off the other. All load connections come off only two battery poles.
The first thing off the + side of the battery is a big honkin' fuse about 300 amps, then go to inverters and 12 volt fuse panels then go to loads. Usually on a battery that big you have a shunt off the negative pole of the battery to hook up a monitor to keep track of amps coming and going.
My suggestion: for now go with only one inverter and use the other for backup. I think you only need one.
Go from the inverter to a regular circuit breaker box, then to 110 loads.I have a breaker for the 110 coming in and a breaker for 110 going out (to use outside) and breakers for 2 circuits inside. On the 110 wireing do not tie the common and the ground together, this is done in the inverter.
The inverter is grounded to the frame.
OOOOH what fun!
Good Luck
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Old 04-15-2007, 02:31 PM   #19
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kewl, thanks for the input. I've modified the drawing to incorporate your suggestions. How's this one look??...

http://afriendlyface.com/solar-system.jpg

Thanks again for ya'lls time,
Peace.
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Old 04-15-2007, 05:30 PM   #20
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Looks good. You don't need fuses on the parallel connections of the batteries, bt the way (I thought you had asked that and I didn't see any responses).
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