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Journal of the Korean Institute of Illuminating and Electrical Installation Engineers

ISO Journal TitleJ Korean Inst. IIIum. Electr. Install. Eng.
Title Motion Characteristic of Particle in Model GIS
Authors 김경화 ; 이재걸 ; 곽희로
Page pp.152-159
ISSN 1225-1135
Abstract This paper describes the motion characteristics of a particle in GIS under AC voltage. To measure the motion characteristics of the particle, a model gas chamber and parallel plain electrodes were designed and manufactured. Lift-off voltages of wire and spherical particles on the electrode were calculated and measured, and electric charge was calculated. By using a high speed camera, the motion characteristics of various particles with applied voltages, such as motion pattern lift-off time, lift-off height, were analyzed. The lift-off voltages were greatly affected by diameters of wire and spherical particles. At voltage around lift-off voltage, the stand-up particle in vertical state moved up and down between electrodes and the height of the lift-off particle was low. At voltage around breakdown voltage the particle repeated vertical rotation a few times while they were being lifted off, and then, they were floating between the electrodes.