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It is difficult to predict or measure the breakdown strength of SF6 gas in the high pressure range. Therefore, it is hard to find reference data of the high pressure SF6 gas breakdown strength. This paper attempts to provide empirically a novel criterion for the estimation of SF6 gas breakdown strength in a spark gap switch. For this purpose, J.C. Martin's breakdown field strength of non-uniform gap...
It is difficult to predict or measure breakdown strength of SF6 gas, especially in high pressure range. It is even hard to find reference data of the high pressure SF6 breakdown strength. We tried analytically to compute the breakdown strength of SF6 gas above 3 bar-cm range in a spark gap switch. The computed result is compared with several published experimental data and showed good agreement for...
A multi-gap multi-channel (MGMC) switch of 500 kV has been developed at Pohang Accelerator Laboratory (PAL). It consists of ten of gaps to increase self-discharge voltage by filling up the gas. A structure of a multi-gap switch can increase its inductances. Thus, in order to solve those problems its structure made by multi-channels had been designed to decrease the inductance effects. The fabricated...
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