RE: NST isolation level

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

Original poster: "John H. Couture" <couturejh-at-mgte-dot-com> 


Rick -

You are correct. If you make a graph of a NST output using resistance (x) vs
wattage (y) you will find there is a hump with a maximum wattage about half
way along the x axis. In other words the voltage goes from max to zero and
the current goes from zero to max. For a 15KV NST the max voltage is 21KV
peak. The NST isolation level has no meaning.

John Couture

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-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Saturday, September 20, 2003 10:13 PM
To: tesla-at-pupman-dot-com
Subject: Re: NST isolation level


Original poster: "Richard W." <potluck-at-xmission-dot-com>

Hi all,

I've done some tests with a 15/60 NST using a water resistor.
I was never able to get 15Kv at 60 ma. Max current, about 50 ma or so,  was
reached at about 8Kv. Raising the resistance from that point lowered the
current and raised the voltage. Lowering the resistance from that point
lowered the voltage  and raised the current only slightly.

I don't remember the exact numbers but as someone already mentioned the NST
seems to work best at about half it's rated voltage. "Best" being max
current AND voltage at that point.

Rick W.
Salt Lake