Low-inductance high-current long-life coaxial capacitor

A kind of coaxial capacitor with low-inductance, high-current conducting ability and long-life is investigated. Considering its voltage, inductance, ability of conducting current and connecting manner with switch, the paper theoretically determines the structure of its component, insulator and electrode. Then with elaborately designed circuits of experiment, the voltage, inductance, ability of conducting current and lifetime of the capacitor are tested. The results indicate that the capacitance of the capacitor is 1.5 μF, the rated voltage is 100 kV, the rated current is 250 kA, the peak current is higher than 300 kA, the inductance is less than 20 nH, the energy density is 205 J/L, and the lifetime exceeds 6 000 shots.