Hi - I have nothing to add to the discussion, but 2100amps peak.  Wow! 
Real EE, not the wussy 30mA @ 3.3V digital yadda stuff normally seen on 
PIClist and my workbench.  Let us know how it turns out...

Good luck!
J


Adam Field wrote:
>> Knowing more about what you are doing would make question answering
>> easier. Application, circuit, frequency, power level, DC component,
>> core material, amp turns, ... .
>>
>
> This application is charging a capacitor, and discharging it
> (practically shorted) through an array of series/parallel SCRs. The
> test is designed to stress the end spray connection of film
> capacitors.
>
> I need inductance to limit di/dt so I don't destroy the SCRs. My
> operation frequency and power level will be different depending on the
> test I'm conducting (.1uF to 220uF). The frequency is usually in the
> 100kHz range, but only lasts a few cycles as the shorted RLC circuit
> dampens.
>
> Peak currents can be as high as 2100A. I have modeled the circuit with
> an Excel spreadsheet and now with Mathcad, but I'm missing a key
> formula, and that's inductor saturation.
>
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