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Registered Member #514
Joined: Sun Feb 11 2007, 12:27AM
Location: Somewhere in Pirkanmaa, Finland
Posts: 295
Last time I checked shorting out mains was something most people actually tried to avoid, but anyway...
You want a maximum current of 13A at 240V, and therefore need a (inductive) reactance of roughly 18.5 ohms in your choke.
Now you can calculate the inductance needed from this simple equation: Xl = 2*pi*f*L
Remember that the hot wire is called hot for a reason and that reason is that it is at 240V potential in respect to the ground you stand on. One simple mistake could have dire consequences.
If there was anything that you didn't understand, I'd suggest you stay away from mains for now.
Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
Platinum wrote ...
Ahh, anyway I think I'm going to build another taser, is there any simple designs for one that is low amperage?
My stupidity is keeping me, so I'm not going to go near mains. It's the only thing I'm interested in that I suck at.
learn by doing, just dont get killed too soon. this power and hv engineering takes a while to figure out its complicated but rewarding, youll get there like the rest of us, just dont expect to be a master in a day or a week.
Registered Member #3943
Joined: Sun Jun 12 2011, 05:24PM
Location: The Shire, UK
Posts: 552
You could make a big capacitor bank and charge to a couple hundred volts or so, you could charge it a current limited source and still get big bangs without blowing the fuse in the plug (assuming you are in the UK) or the MCB/breaker.
Registered Member #326
Joined: Sat Mar 18 2006, 01:12PM
Location: Glasgow, Scotland
Posts: 66
Platinum wrote ...
I'm trying to learn but I have no info sources.
Taking time to read around this site is a good start, as is logging into the chatroom and reading what people say. Intelligent use of Google will find you a LOT of information too.
Registered Member #30
Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706
Same reason as you might want to play in the traffic or on the railway tracks. Maybe you should do that instead, it could be safer!
An electric fire, kettle etc, makes a great ballast, just connect it in series with the mains and whatever you're wanting to fry. Including yourself if you don't heed the safety warnings above.
A variac doesn't, as it just reduces the voltage without limiting the current, you'll simply burn out the brush and ruin it.
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Shorting 240v
