RE: New Neon Transformers

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

Original poster: "Lau, Gary by way of Terry Fritz <teslalist-at-qwest-dot-net>" <Gary.Lau-at-hp-dot-com>

As most folks use NST's now, the core is tied to RF ground.  The primary is 
essentially at mains-ground.  So whatever transients develop over the 
length of the RF ground cable (not insignificant!) would be seen across the 
primary-to-core insulation.  What I proposed would just move this to the 
secondary-to-core insulation.  Only a modest effort would be needed to 
insulate the CT and inner secondary winding from the core.

Gary Lau
MA, USA

  >Original poster: "Mike Harrison by way of Terry Fritz 
<teslalist-at-qwest-dot-net>" <mike-at-whitewing.co.uk>
 >
 >I'm not sure this is a good idea - it could be that the insulation between
 >the CT and the core may
 >not be very strong, and the inductance of the differing earth paths could
 >allow high voltage
 >transients to appear between the 2 ground connections.


  > > Original poster: "Lau, Gary by way of Terry Fritz <teslalist-at-qwest-dot-net>"
  ><Gary.Lau-at-hp-dot-com>
  > >
  > > Would it be possible to take the CT connection out to a 3rd terminal
  > > without tying it to the core?  One could then tie the CT to RF 
ground, and
  > > tie the core to mains-ground.  This would permit a primary strike to be
  > > safely drained to RF ground while minimizing RF coupling to the
  > > primary.  The core to inner-secondary winding insulation need only hold
  >off
  > > whatever the RF ground transients are.
  > >
  > > Gary Lau
  > > MA, USA