It would be necessary for one reason because of the huge voltage drop, he isn't getting 240 volts AC powering the hair dryer,
he's getting way under 200 volts and a lot of household appliances would reject that. SO the drop could be fixed by using a AC to
DC converter then converting back to AC at the proper voltage. The voltage drop makes the 160-180 volts almost unusable for a
lot of things.
Seeing the huge voltage drop we can clearly see that the arrangement is very inefficient, the voltage drop represents a big loss of
power due to the ground resistance.
Basically if the house meter is fooled (which is the goal of the device) then power is being stolen and it is being used very inefficiently.
More or less the missing voltage is consumed by the ground resistance.
Going by the drawings in the patent the only drawing that works is the one with the active grid line directly connected to the High
Current loop and it is obvious what the result of that would be. Which is the voltage across the load is the potential between the
active grid wire and the ground, the ground taking the place of the neutral line (return line), this is how the meters cannot
measure the power because there is no return current through the meter.
EDIT: The system can never operate in that iteration with a working RCD (safety switch) in place and that is hard evidence that
the entire thing is a scam.
Trying to say the output is free from the ground is ridiculous. The power is supplied by the grid and the meters are bypassed.
My own experiments showed this if you looked.
I'll consider the device valid if the current from the active line does not feed the load with a return through the ground.
Barbosa and Leal should be in Jail as well if they are in fact trying to develop and distribute for use a system that bypasses the
meters, and most importantly bypasses the RCD (safety switch), because people will die. And they will be to blame if their device
is the cause of a death.
Think about it, a
Death, a persons life cut short due to a knowingly dangerous device. Imagine it to be your own much loved relative.
Unless we are
electricians and trained
with an assistant present we should not be messing with the grid power at all
behind the socket.
..
Many electricians do work alone on dangerous power systems, but they should take all the proper precautions. If I was an
electrician I would feel better if I had an assistant working with me in case I was rendered unconscious.
Being a boilermaker (metal fabricator) I run the risk of high current electrocution as well as other things that could render me
unconscious if care and precautions are not taken. I refuse to work in potentially dangerous situations without an assistant, an
apprentice with first aid training or an observer with first aid training. As with many other industrial occupations people get killed
and maimed, so we undergo a lot of on the job safety training and are instructed in electricity basics as apprentices in college,
those of us that took notice learned a bit about the dangers of electricity and how it can do odd things.
ie, arc drift in DC arc welding. For years I spent a good portion of the day watching an arc through a lens and dealing with power
cables around rail wagons ect. and around very dangerous stuff, I've seen people get electrocuted and have been electrocuted
myself more than once by 240 volts from the grid, even if it doesn't kill you it will do damage, I've also been electrocuted by
hundreds of amps output arc welders at low voltage with sweat from working as a conduction aid. Low voltage high current
electrocution is slow and I felt myself fading to black before falling and luckily pulling the Earth cable from the job. This happened
over 20 years ago. Safety is now much better mostly because of people demanding it because of seeing people harmed or
maimed. People cut off fingers and do all kinds of things.
I can assure you if you survive a hit from the 240 grid you are lucky and will endeavor to never do it again while giving stern
warnings to those who do not take care as it is a matter of duty of care for anyone witnessing unsafe practices.
I would hope if someone seen me doing something very dangerous they would warn me of the danger immediately.
..