Voltege divider

119

01:21:21

230v ac supply to 72v to 48v to 24v to 12v

published 10 years ago

RammanoharVishwakarma

10 years ago

Very good

hurz

10 years ago

Your power provider will be angry about the high reactance current.

azeemkhan

10 years ago

Good

flowDAQ

10 years ago

Actually it is capacitive reactance, so that may make the provider happy since it likely cancels some of the copious inductive reactance.

thebugger

10 years ago

Reactive resistance is the most impractical way to spend energy. Because it's just wasted, without anything in return. A typical capacitor won't even dissipate the losses in heat, it's just gonna waste it. The provider may be ok with this, but you surely won't like the electric bill when it comes in.

thebugger

10 years ago

BTW 85A is not in the current handling capabilities of a normal household plug 🔌. They usually carry no more than 40A (depending on your whereabouts). Even a 3phase voltage will have a hard time maintaining a continuous operation at these levels.

hurz

10 years ago

And the resistance on the provider powerline will nicely burn this high reactance current into heat! P=I^2*R This makes power provider really happy ;p !

thebugger

10 years ago

Therefore it's not sensible to divide the voltage this way. Either use resistors, or significantly decrease the capacitors values. If you try it this way it's more than sure you'll get electrocuted, because capacitors will have a remaining potential that is lethal. Moreover your fuse will immediately burn out, or worse, it won't burn out and your home wiring will burn out.

rich11292000

10 years ago

1.6 kA if you put a switch on it!

thebugger

10 years ago

That's the way of EC to introduce noise in an ideal environment. Since some of the caps won't have a direct connection to ground, it shows as if the built up voltage has nowhere to go to, so it just remains there. In reality there are many factors that would prevent that.

flowDAQ

10 years ago

opps... there is like 5kVA of reactive capacitive power, I don't have that much inductive reactance to cancel.

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