Influence of Environmental Factors on Stray Capacitance of GIS

The purpose of this paper is to study the feasible range of stray capacitance value variation of GIS equipment under different environmental conditions. By establishing the finite element calculation model of GIS internal stray capacitance, the influence of internal temperature variation of GIS equipment on stray capacitance are calculated, and the influence of environmental factors such as gas density of SF6 and internal temperature change of GIS on the stray capacitance of GIS equipment are studied. Then, the stray capacitance level of various GIS equipment under different operating modes and different environmental parameters, and determine the stray capacitance value with environmental factors.