Re: potential transformer question

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

Original poster: "Dr. Resonance" <resonance-at-jvlnet-dot-com> 


You can overvolt them approx 20% --- beyond that you're pushing your luck.
Nowhere near the 60 kV you mentioned.  The 125 kV bil test occurs in approx
1.5 uSec risetime to 50 microsec falltime.

I run them at 3.6 kVA on TC duty cycle, ie 20%.

You will damage the interior winding long before the case melts.  If you
want 60 kV then use an x-ray transformer.

Dr. Resonance

 > Hi all. I came across a 3kVA 14.4kV potential transformer (expensive, but
 > looking for something I can run continuous without watcing the timer or a
 > bunch of nst's paralled or a heavy oil-filled pig). Anyone know how much
 > voltage these put out before self-destructing? Was aiming for 500v in with
 > 4x the regular current limiting to get 60kv, 60 mA out (slight overload).
I
 > know these have 110kv bill rating but isn't that a dc hi-pot test? How far
 > can these be pushed kVA wise? It's encased in plastic and I'd hate to melt
 > it off.