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Re: Positive VS negative streamer
to: John
I think Mr. Benson was posting data related to the discussion regarding why
the positive streamers tend to form longer or breakout easier than neg
pulses. Even though RF currents are unipolar in nature, if you consider a
very short time duration they are essentially direct currents (of one
polarity) during the corona formation stage and could be considered
somewhat similar to DC. I would add that this phenomonea appears to be
somewhat similar to Trichel pulses formed with DC Wimshurst machines.
Trichel pulses also appear to form with much more vigor on the positive
terminal of such machines.
DR.RESONANCE-at-next-wave-dot-net
----------
> From: Tesla List <tesla-at-pupman-dot-com>
> To: tesla-at-pupman-dot-com
> Subject: Re: Positive VS negative streamer
> Date: Sunday, October 25, 1998 6:31 PM
>
> Original Poster: "John H. Couture" <couturejh-at-worldnet.att-dot-net>
>
> At 03:51 PM 10/24/98 -0600, you wrote:
> >Original Poster: "B**2" <bensonbd-at-erols-dot-com>
> >
> >Hi All,
> > Found the following information. Seems to relate to recent
measurements.
> >
> >Quote:
> >
> >"EXPERIMENTS CONDUCTED IN THE LABORATORY
> >
> > To understand the basic mechanism by which the positive corona
sheath
> >is neutralized by the return stroke, we conducted the following
experiments
> >in the laboratory. The potential of the central wire of a coaxial
> >cylindrical system was raised to a very high level by applying a
positive
> >voltage impulse. This pulse led to the generation of positive space
charge
>
> ----------------- snip
>
> It should be noted that the Tesla coil uses a high frequency dampened
> sine wave not a voltage impulse. So how does this post apply to Tesla
coil
> operation?
>
> John Couture
>