$SF_6$ 가스 동축원통전극에서 금속이물 존재시의 전계해석

The Electric Field Analysis with Conducting Particle between Coaxial Cylindrical Electrodes in $SF_6$ Gas

This paper describes the influence of conducting particle within the coaxial cylindrical electrodes gap under alternating voltage condition investigated using charge simulation method. If the conducting particles precent in the gas insulated system, they can cause decrement of breakdown voltage. Thus, three dimensions computations of electric fields and electrostatic forces have been carried out according to particle location. The results show a good agreement with those of outside country, which can offer a practical reference on the insulation design of domestic GIS.