Re: [TCML] Voltage - Gap

[Futuret <futuret@xxxxxxx>]

I should clarify what I wrote in the last sentence below and say 
instead:

 "The duration of the beats, and where the notches occur time-wise
can be calculated based on the k and the resonant frequency."
Which notch the gap will quench on, cannot be easily calculated
(too many unknowns).   

John

 

 

 

-----Original Message-----
From: Futuret <futuret@xxxxxxx>
To: tesla <tesla@xxxxxxxxxx>
Sent: Sun, Jan 29, 2012 5:19 pm
Subject: Re: [TCML] Voltage - Gap


Jay,

The arc probably jump forward and fires the gap before the
electrodes align.  Then the system probably runs out of energy
(if giving off robust toroid sparks), before the electrodes pull
away from each other.  Thus the rotary arc probably extinguishes
before there's any opportunity for stretching the arc.  Under
some conditions (small cap, small rotary, slow rotary, wide
electrodes, strong power supply), the gap may actually
"re-fire" while the electrodes are still aligned and this will 
give inefficient operation as discussed in the past in a paper 
by Peter Jamison (I don't have the reference available).  

On-time is the quench-time... how long it takes until the gap
arc quenches.  It will always quench at a notch.  In an
efficient system, first notch quenching will occur.  In many
coils, quench occurs at the 2nd or 3rd notch.  This can
be calculated based on the tightness of coupling k, and
and duration (spacing) of the beats that result.  

Cheers,
John

 

 
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