The zinc oxide surge arrester is an important barrier to protect the power system from lightning, and maintaining its good thermal stability is of great significance for its safe operation. In this paper, the model of lightning arrester is established by finite element, the simulation calculation of the electrical-thermal characteristics under the impact of lightning current and large current is studied, the heating and heat dissipation characteristics of the arrester under different conditions are obtained, and the arrester is found in differe...
