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Old 02-27-2017, 11:55 PM   #3031 (permalink)
MPaulHolmes
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Join Date: Feb 2008
Location: Maricopa, AZ (sort of. Actually outside of town)
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Michael's Electric Beetle - '71 Volkswagen Superbeetle 500000
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I used one of the AC control/driver boards to make a 240v/120v split phase inverter, so that there are 2 120v supplies, and a neutral. The 2 120v supplies are 180 degrees out of phase, so you can use the 2 hots to make the 240vAC. I finally got it working well with the newly configured MPPT just last night. So, now I have the solar panels putting out between 380v and 450vDC, and that goes to the MPPT, which charges 28 (just the number I had laying around!) 7amp*hr 12v batteries, which are all in series. Then, the 28 batteries feed the input of the split phase inverter, and now I'm using that to power my house! Finally I can run both 120v and 240v stuff from the same inverter. And it's 100amp 240v service! Well, I can do 200amp surges. The hardware overcurrent is set to 200amp.

Josiah is going to help me do a nice video of the whole setup. He's been practicing his lighting, and has been acting as my apprentice lately.

Oh, and you can just change one little setting, and boom, you have 3 phase power at your house! 208v 3 phase up to 480v 3 phase.

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