Towards the prospection of an optimal thermal response of ZnO surge arrester in HV power system

In order to understand the thermal and electrical properties of surge arrester under standard climatic conditions, it would be useful evaluate heating progression in its different elements. These are constituted heterogeneous materials, which have physical nonlinear along arrester. Temperature predicting solutions for zinc oxide ceramic blocks provide fundamental elements electrothermal material characteristics view lifetime estimation. Electrothermal phenomenon analysis arresters is based on empirically-determined parameter models, using finite element method (FEM) simulated COMSOL Multiphysics software a more precise approach compared existing models. this paper, behavioural model has been developed study both cases: steady state overvoltage (lightning). Previous published works validate first simulation results. This work therefore extended consider other operating states, illustrate dependence type amplitudes durations phenomena.