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I want to upgrade a high-current, ~1MJ inductor-interrupting switch in a cost-effective manner. Present system uses Parallel SCR's, with SCR cap-discharge commutation, and voltage-limiting energy-dump resistor: Desired upgrade specs: Are there other options (preferrably commercial systems) that might be adaptable for my purposes, e.g., Trade-offs? Al Lietzke
Imax.dc: 20kA
Imax.commutation: 12 kA
Vmax.interruption: 0.5 kV
Voltage.rise-time: ~10 ms
Opening jitter: < 2 ms
Imax.commutation: 20 kA
Vmax.interruption: 1 kV
Voltage.rise-time: < 5 ms
Opening jitter: < 5 ms
Min.interruptions before maintenance: 100
Brute-force upgrading the commutation system to higher voltage and current is likely to be costly, bulky, and increase the rise time.
Likewise, an R&D project is likely to be prohibitively expensive.
1) contactor/transistor combo switches
2) contactor, magnetic blow-out switches
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