Very weak coupling and life of primary arc

• To: tesla-at-pupman-dot-com
• Subject: Very weak coupling and life of primary arc
• From: boris petkovic <petkovic7-at-yahoo-dot-com> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Thu, 23 Sep 1999 17:26:49 -0600
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

Hi Terry,All,
I'm interested in the correctness of one claim that
concerns weak prim/sec coupling and lasting of prim.
gap arc.
If k is very low (read k< 0.1) it is claimed that
after all the energy is completely transferred to
secondary circuit for the first time,primary arc turns
off and doesn't refire again.
In other words this is a case where there's no return
of energy from secondary way back to primary.
Relatively small induced voltage across Lp by mag.
influence of secondary is found to be a reason (which
is understandable since small k).
However ,I doubt.The gap should lost its conductive
properties in 1 microsec. itself!
It is emphasized: no need of any rotary
,cooling,forced air flow in gap if input power isn't
to considerable (1 KW aprox.limit)-just static gap
employed.
Maybe it would work if multiple series gap used?
And yes, just for any case -the protection of power
transformer is a must here.

Every experience/info/thoughts on this subject is
welcome.

-Boris
 
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