Variac Help needed? for HHO
Uploader Comments (David7900)
All Comments (8)
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Some additional info...I am in Phoenix AZ, the cold start temp in the summer can be 145 F. or more under the hood, so it is absolute to keep the cell tempeture as low as possible. So all of my work has been in that direction. That way my cells will run under any weather condition with out temp or amp crawl.
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I use 4 square inches per watt ... at 3 per watt you pushing it a little bit ...
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1 watt for every 3 square inches.. Great to know as i build my new cell!
Is that per plate, or per each side of the plate?
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the trick when running a series cell is to maintain not more than 2-2.5v per plate gap, and never try to push more than 1 watt for every 3 square inches of exposed surface area ... if you design to that spec, there is no problem with thermal runaways or over heating ... I can run mine continuously for days on end and it never exceeds 120F while putting out 10 lpm on 120vAC @ 20a ... works like a charm ...
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Yes that true no more than 2.3 volts per plate cap, however using neutrals waste power and needs more electrolyte density which leads to higher tempeture, current and temperture runawy, and plate-cell damage over time. its easy to convert your cell to run on 3.5 volts or less.
to answer your question, that device is intended to run 3 - phase 240vAC I suspect ... but yes, you could connect up to just one unit and use it to control 120vAC going to your bridge rectifier ... google a document called "Know your variac" ... should be out there in PDF format ... shows what the connections are ... I am green with envy over your variac ...
SmartScarecrow 2 years ago
Yea i really lucked out on this monster gem!
Thanks for the info!!! I can't wait to get it running! I am thinking of just hiring an electrician to get the power i need in the garage. Once i do get it up and running people well see some cool video's.
David7900 2 years ago
i just checked out that pdf file.. it is what i needed! Thanks ! now i have to get to work on it!
David7900 2 years ago
No you need more HHO with less volts 3.5 volts Max
hhoforvolts 2 years ago
no worries. I never use more than 2.3 volts per plate gap. More volts means more plates. and more plates means more watts i can use. the neutral plates are how i drop the voltage.
David7900 2 years ago