[TCML] My first tesla coil
dexterlabs at dcemail.com
Mon Sep 7 09:54:19 MDT 2009
Hey,thanks Bert!That's veeery interesting.Do you know if that corona charging effect happens also in the vicinity of HV power lines?
--- bert.hickman at aquila.net wrote:
From: Bert Hickman <bert.hickman at aquila.net>
To: Tesla Coil Mailing List <tesla at pupman.com>
Subject: Re: [TCML] My first tesla coil
Date: Sun, 06 Sep 2009 14:42:57 -0500
In addition to electromagnetic induction, there is also the phenomenon
of electrostatic induction:
Space charges (injected by nearby streamers and leaders) will also
induce potentials on nearby isolated conductive objects by direct charge
deposition via "corona charging". As a result, a sphere, placed outside
the range of visible discharges from a Tesla Coil, will rapidly charge a
HV capacitor (where the other end of the capacitor is connected to
ground). This is markedly different than the RF capacitive coupling that
also occurs between secondary/toroid and nearby conductive objects.
Corona charging or corona rectification has been used to make low
current HV rectifiers and is currently used in electrostatic
copier/printing and polymer pretreatment for printing.
Dex Dexter wrote:
> Well,if they remain charged after turning off the coils (for a longer
> time) that can't be induction.
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