Re: A LUA file for BELA (a help to build electrostatic model of TC)

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Ed Phillips <evp@xxxxxxxxxxx>


People who work with tightly coupled transformers for high voltage 
know it already, but I have only recently found out:
I cannot insulate my way out of a corona problem. The more dielectric 
I stuff into the gap, the more severe the corona gets in the remaining air.

Ain't that the truth..."

   Of course; "it has to be that way".  The more (higher dielectric 
constant than air) material you put in the gap the greater the 
voltage drop across the remaining air and hence more corona.  IF you 
completely fill the gap and IF you exclude all residual air the 
corona will be suppressed.  If a little air remains somewhere it will 
break down due to corona and may very well result in breakdown of the 
associated dielectric material.  Major failure mechanism for 
capacitors operated at high AC voltages.

Ed