plaming
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fail of a variable dc power for an electrolysis
Hello !
a few days ago i have earned an 5-15V 0-20A power supply
Problem : when i put this on my electrolysis cell, i have maybe 0.5A and no more,the power don't want to change the amperage but for the voltage its
ok.
do you have an indea to have the 20A?
thanks !
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papaya
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Larger electrodes!
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WGTR
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...or they could be too large. Some power supplies have fold-back current limiting, actually providing much less current at
1V (for example) than they do at their rated output voltage. It's a safety feature.
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BromicAcid
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You don't say what you are trying to electrolyze. That could be the cause. If you were trying to electrolyze relatively pure water, non-aqueous
solutions with limited ions those would be two immediate situations that would cause low current. So, need more information 
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plaming
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i'm trying to electrolyse satured solution of sodium chloride for having sodium hydroxyde.After another try with bigger electrode,the amperage doesn't
change so i think it's a safety feature as said.
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bfesser
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Thread Moved
18-1-2014 at 13:45 |
WGTR
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Can you measure the voltage at the output of the power supply while the cell is operating (i.e., at 0.5A)?
Edit: And also, what is the model number for the power supply? I can take a look at it.
[Edited on 1-19-2014 by WGTR]
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Fantasma4500
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if its 5-15V then it shouldnt be the voltage messing it up..
perhaps move electrodes closer?
heating solution also makes it more conductive, or well at least my big power supply went +35A when it got really hot, starting at 12A approx
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