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BIG Capacitors




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From:  Bill Lemieux [SMTP:gomez-at-netherworld-dot-com]
Sent:  Tuesday, February 17, 1998 5:02 PM
To:  Tesla List
Subject:  Re: BIG Capacitors

Justin Oliver wrote:

> Does anyone know where I could obtain several capacitors (surplus or new)
> rated at over 100uF and at a voltage of 18Kv or over. These caps will go to
> use as part of a circuit in a coil crush experiment.

You are looking for a 16 _kiloJoule_ capacitor, which is a non-trivial
thing.  Given the nature of your experiment, you are also looking for
caps specifically designed for pulse-discharge, ie, low-self-inductance,
low ESR, and a certain amount of voltage-reversal capability.

The only people I know of who make such beasts are Maxwell Laboratories.
http://www.maxwell-dot-com

However, depending on the size and mass of your experiment, you may
not need that much energy storage- are you certain of your
requirements?  How many of these caps do you need?

I have a few exotic ultra-low-inductance pulse-discharge caps, but they
aren't in that energy storage regime.

-Gomez

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