Breakdown characteristics of SF6 at various temperature under AC High-Voltage

The malfunctioning of power equipments is being pointed out as the biggest problem because insulation characteristics would cause a huge change due to the depreciation of temperature resulting in liquefaction. Accordingly, a research to minimize the possibility in the outbreak of partial discharge through designing an ideal insulation layout considering the outer environment and a number of items for accidents is required. In this paper, the insulation characteristics of SF₆ according to change in pressure and temperature when the certain amount of gas exists in the chamber is investigated. In addition, the phase transition characteristics and the breakdown voltage characteristics using AC high-voltage has been researched