Original poster: "Mike" <mike.marcum@xxxxxxxxxxxx>
My guess is that they are calculated with the internal esr/esl as a load,
or they use some sort of amp probe similar to the ammeter clamps and just
get a close estimate from the current's magnetic field intensity.
Usually the caps are simply built to witstand the 20kA pulses, or the cap
is redesigned to have lesser peak current. I would think that trying to
limit a certain cap to less than it's rated peak current would require a
huge inductor/resistor, especially the 500-lb 100+ kJ ones.
Mike
----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Thursday, December 16, 2004 9:59 PM
Subject: Re: 18,000. AMP high energy Cap bank
Original poster: FIFTYGUY@xxxxxxx
In a message dated 12/11/04 9:46:06 PM Eastern Standard Time,
tesla@xxxxxxxxxx writes:
The capacitors weigh about 100 lbs each. Caster
oil fill caps. Rated 18,000. AMP High Energy pulse capacitors. 3
capacitors in parallel is 54,000. AMPS.
How does one measure these very high current levels to any degree of
accuracy?
How does one limit these current levels? If a energy discharge cap
system has an ultimate safe rating of (say) 20kA, how does one make sure
that current isn't exceeded during an experiment that vaporizes a specimen?