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The attempt was made to develop a new measuring method for obtaining the state of the arc in the nozzle throat. The measuring methodology used in this experiment was based on a contactless sensing by use of straight-line conductors as detectors. We used resistors as alternative to the arc and attempted to reproduce an electric potential vb at a certain location. The experimental result indicates the...
Concerning an electrical breakdown of a high-temperature gas, theoretical calculations were carried out to obtain a sparking voltage from an ionization coefficient on the basis of the Townsend breakdown theory. The calculations were made for a nitrogen gas with a mass-density of 1.14 kg/m3 under a constant volume, in consideration of a dissociation and an ionization reactions of N2. The calculation...
Superconducting fault-current limiters (SFCLs) are expected to be useful for preventing increases in the fault currents caused by the expansion of power systems with dispersed generators. In this study, we focus on resistance-type SFCLs with YBCO superconducting thin films fabricated by the metal-organic deposition (MOD) method and propose a computational approach to calculate the resistance generated...
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