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AC
Mains Power Supply
Several years ago, I attempted to run a Cell
directly off of 110 Volt AC. I knew I had to convert the voltage to DC
first, so I rigged up a 20 amp Diode Bridge Rectifier. The rectifier provided
positive pulses on one wire, and negative pulses on another wire. Since
this was a test, I let the Mains 110 VAC 20 amp circuit breaker do the safety
work.
The experiment was on the
"Brute" Cell. There were 12 plates, each 20 inches x 3 inches. The
configuration was +N- +N- +N- +N- . The cell was using well water. When
I applied power, the container immediately bubbled over; with-in 3
seconds, the lights went out. What happened? Oops, the circuit breaker
tripped, and the bridge rectifier burned up. I tried a 50 amp rectifier
and a rheostat with one side wired through a 25 watt light bulb. It
still burned up the rectifier and tripped the circuit breaker.
As it turned out,
electrolyte should not be used when you start your test. Add small
amounts of electrolyte, only after startup produces little to know
electrolysis results.
The problem needed a means
of limiting the current. So I search the www and find this:
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