Re: 4KV NST

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

Original poster: "S&JY" <youngsters-at-konnections-dot-net> 

Chris,
The only practical way to run them in series is to make a 120 to 120 volt
isolation transformer with enough insulation between the windings and core
to withstand the peak voltage of half of one of your transformers (about 3
KV, but double it for some margin).  Then you run one of your transformers
off the isolation transformer, and put it in series with one leg of the
other transformer.  The non-isolated transformer centertap will be your
ground point, with 2 KV RMS on one leg, and 6 KV RMS on the composite other
leg.

Probably you can get higher voltage NSTs cheaper than building an isolation
transformer.
--Steve Y.

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Monday, September 20, 2004 12:03 PM
Subject: 4KV NST


 > Original poster: "Chris Swinson" <tesla-at-cps-electronics.co.uk>
 >
 > HI all,
 >
 > I have a 2 4KV 65MA NST, problem is they are CT so they are 2KV-GND-2KV
 > anyone know if its possible to link these in series ?
 >
 > I have had in the past 2 4KV NST without CT so I have used these in series
 > for 8KV and CT the "join" point in the secondarys to ground, so that gives
 > +4KV and -4KV, no harm done there at all. but if the NST already has a CT
 > then I stuffted right ??
 >
 > TIA,
 >
 > Chris
 >
 >
 >
 >
 >