The authors investigate electric field relaxation effect of the non-linear resistive material (NRM) using micro-varistor to reduce the size of the gas insulated switchgear (GIS). In the previous reports, the electric field relaxation effect by applying NRM to the epoxy spacer used for GIS was analyzed. This paper dealed with verification of the effect of NRM on the field relaxation using a model simulating epoxy spacer with NRM in comparison with metal embedded spacer.
