Fast Air Gap Crowbar Switch Decoupled by a Low Pressure Gap
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概要
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A fast pressurized crowbar gap switch, in which a low-pressure gap is used as a non-linear decoupler, is investigated. The switch is composed of a simple two=electrode high-pressure gap and a low-pressure gap of trigatron type. A special trigger circuit is designed in order that a single pulse breaks down the high- and low-pressure gaps successively. The jitter of breakdown time is less than 20 nsec over the wide range of the operating conditions : working voltage and pressures in both gaps. The switch is disigned for 40 kV operation and its inductance is 22 nH. Seventy switches of this type are installed in a 40 kV, 210 kJ fast capacitor bank. Up to now they have been running successfully for 8000 shots with little maintenance.
- 核融合科学研究所の論文
核融合科学研究所 | 論文
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