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RE: High Voltage Power Arc



Original poster: "david baehr" <dfb25@xxxxxxxxxxx>


I wanna build one !!!!!,  What size transformer do I need ? :-)


From:  "Tesla list" <tesla@xxxxxxxxxx>
To:  tesla@xxxxxxxxxx
Subject:  High Voltage Power Arc
Date:  Wed, 08 Nov 2006 17:43:42 -0700
>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
>
>