The Characteristics of Insulation with Temperature Variations of $SF_{6}$

$SF_{6}$ 가스의 온도변화에 따른 절연특성

  • Published : 2003.08.01

Abstract

In this paper, insulations characteristics by temperature changes(+50~-50[$^{\circ}C$]) of $SF_{6}$ gas in the experimental chamber were studied. From this result, at the low temperature, the breakdown voltage was increased with a drop of temperature and an increase of inner pressure in GIS. In addition the ability of insulation of liquid $SF_{6}$ was higher than that of the highly pressurized $SF_{6}$ gas. That is, with progress of low temperature, the main reason of breakdown was not liquefaction of $SF_{6}$ but rapid decrease of inner pressure. This study will come in greatly handy for the insulation design of GIS in a hard cold region

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References

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