Spark Gap (fwd)
From: Malcolm Watts [SMTP:MALCOLM-at-directorate.wnp.ac.nz]
Sent: Monday, May 25, 1998 11:33 PM
To: Tesla List
Subject: Re: Spark Gap (fwd)
> From: Jim Lux [SMTP:jimlux-at-earthlink-dot-net]
> Sent: Monday, May 25, 1998 10:42 AM
> To: Tesla List
> Subject: Re: Spark Gap (fwd)
> > I can't see a single reason why it should be lower. Besides, Rgap is
> > a dynamic impedance which varies with Ip. Multiple gaps most
> > certainly have a higher voltage drop when conducting as each has a
> > minimum saturation voltage, again dependent on Ip.
> > Malcolm
> That voltage is pretty darn low, though. Consider an arc welder, where the
> voltage drop across the gap is a few 10's of volts. Even with 10 gaps in
> series, a hundred volts of drop is pretty small compared to the several kV
> on the cap.
Agreed. But Vcond does rise as Ip drops. I think Jim Fosse measured
several kV across a series gap by the time it went out.