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In this paper, we treat the development of vacuum interrupter (VI) design tool including automatic geometry modeling in given parameter values, 3-dimensional electromagnetic calculation and analysis of the results for coil-shaped axial magnetic field (AMF) type VI. Coil radius, coil thickness, coil width and slit depth are adopted to the dominant design parameters. The effective current density, joule...
The discharge currents were evaluated and validated using the generalized energy method and the integral Ohm's law combined with the recently developed discharge analysis technique for dielectric liquid media, such as transformer oil. The terminal current in voltage-driven systems was found to play an essential role in characterizing the pattern of electric discharge, such as corona, breakdown, etc...
A new type of switchgear, electro magnetic force driving actuator (EMFA) is developed and analyzed to be applicable to high voltage gas circuit breaker (HGCB). The transient analysis is performed to obtain the dynamic characteristics of the EMFA. The distribution of static magnetic flux is obtained by using the finite element method (FEM), and the governing equations, electric and kinematical equations,...
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