Effect of solid spacers' dimensions and permittivity on the electric field distribution in gas insulated systems

In this paper, the effect of the spacer's dimensions and its relative permittivity on the total electric field distribution on its surface will be presented and discussed. These effects will be also outlined for a practical spacer's shape. The field behavior near the triple junction will be explained. Finally, an approximate empirical equation for the electric field distribution on the spacer's surface, taking into consideration all the parameters mentioned before, will be presented.