Breakdown Phenomena in Ultra-Fast Plasma Closing Switches
STRATHCLYDE UNIV GLASGOW (UNITED KINGDOM) DEPT OF ELECTRONIC AND ELECTRICAL ENGINEERING
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An experimental investigation into the rate of voltage collapse in plasma closing switches has been undertaken. A transmission line test switch, using a radialconical topology to minimise wave reflections, has been used for this investigation. The results described in this paper were obtained from experiments using hydrogen. The results show that there is a distinct difference in behaviour between low pressure 5 bar and high pressure 5 bar breakdown. Comparatively high values of dVdt were obtained at both low and high pressures, whereas a low dVdt was observed at intermediate values of pressure.
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