Re: Over-voltage at Synchronous Gap ? ? ?

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: Daniel Hess <dhess1-at-us.ibm-dot-com> 





I'm curious about something you mentioned. Normally, the relationship
between the fixed electrodes and the flying electrodes on a RSG should be
as close as possible, without actually incurring physical contact. It
sounds as if you may be adjusting or allowing space between the electrodes
as if you were setting them for a fixed spark gap. If so, this would allow
the firing voltage to be much higher than would normally be achieved with a
RSG, async or non-async.

If I've understood you correctly, try resetting the gap spacing for minimum
as possible and try it this way.

Regards,

Daniel

"Tesla list" <tesla-at-pupman-dot-com> on 09/14/2003 08:20:06 PM

To:    tesla-at-pupman-dot-com
cc:
Subject:    Over-voltage at Synchronous Gap ? ? ?



Original poster: dhmccauley-at-spacecatlighting-dot-com

I am having some interesting phenomenon occur at the safety gap I have at
my
SRSG gap.

If I adjust my SRSG to the point of which (should yield 75% to 100% maximum
voltage at primary capacitor), i get firing of my safety gap with
loud bangs (which are likely because the MMC is discharging into the safety
gap)  The safety gap is adjusted slightly larger than the no-load voltage
on the NST.  I am confused to why this gap is firing as I am using a LTR
type capacitor and didn't think i could get over-voltages using a SRSG.

Any thoughts??

Specs on my small coil are:

15kV, 60MA NST
0.0257uF, 24kV (MMC - LTR sized)
Standard secondary and primary coil

The Captain