Análise de desempenho de para-raios de ZnO sob diversos cenários de poluição utilizando Método de Elementos Finitos

Surge arresters are equipment of vital importance in the protection electrical power systems, with role protecting transmission, distribution lines and face atmospheric discharges, as well maneuver surges eventual maintenance, also reducing maintenance accidents. Thus, it is important to investigate operating conditions these under different scenarios, whether normal or polluted conditions. Therefore, a two-dimensional model 30 kV zinc oxide surge arrester was simulated, using Finite Element Method, obtain curves leakage current distributions electric potential field lines. The results show an increase quantities acquired level pollution intensifies.