Re: Single-bushing 14.7kV pigs. Thoughts?

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

Original poster: "Peter Terren" <pterren1-at-iinet-dot-net.au> 

Dr Res
The only time I ever get sparks 'everywhere' is when I forget to connect the
RF earth.  Are you quite sure that is not what happened?  I have been using
coax all the time I have had my MOT supply without problems although I do
have an RC filter.
Cheers
Peter (Tesla Downunder)
http://members.iinet-dot-net.au/~pterren

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Monday, February 09, 2004 11:01 PM
Subject: Re: Single-bushing 14.7kV pigs. Thoughts?


 > Original poster: "Dr. Resonance" <resonance-at-jvlnet-dot-com>
 > > I also want to share with the group something to never do:  On an early
pig
 > xmfr we used a coax cable to connect both the hot and ground approx 12
feet
 > over to the coil.  When we fired the coil up the capacitance formed a
 > powerful resonance with the xmfr's inductance.  The result was hot long
 > sparks that fired across the entire large 14.4 kV bushing on the xmfr.  It
 > formed a sort of blumlein and developed over 125 kV across the bushing!
 >
 > Dr. Resonance