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.