[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: High Voltage Power Arc
Original poster: Bert Hickman <bert.hickman@xxxxxxxxxx>
Tesla list wrote:
Original poster: "Chris Rutherford" <chrismrutherford@xxxxxxxxxxxxxx>
Hi All,
I put this vid on youtube and someone asked me what caused the
ark. I replied but I'm not sure if I gave the correct answer, does
anyone have a more accurate description?
<http://www.youtube.com/watch?v=sngLL29LH14>http://www.youtube.com/watch?v=sngLL29LH14
When you get to high voltages i.e. 50KV with lots of inductive load
(long wires) its not a case of switching off the power because the
current doesn't want to stop. When the circuit is broken a back EMF
is generated that breaks down the air and causes an ark. Eventually
the back EMF decreases and there isn't enough voltage or current to
keep the air in its conducting state.
Thanks
Chris
The original video, with the complete explanation, is here:
http://205.243.100.155/frames/longarc.htm#500_kV_Switch
Bert