Metal oxide surge arresters are used to protect medium and high voltage systems and equipment against lightning and switching overvoltages. Measurements of the residual voltage of the metal oxide surge arresters indicate dynamic characteristics with the residual voltage to increase as the current front time descends and the residual voltage to reach its maximum, before the arrester current reac...

A subgridding formulation of Agrawal coupling equations of transmission line with branch and distributed electromagnetic excitation is proposed. This algorithm enables us to solve the transmission line system using different temporal and spatial step on different branches. The method is used to calculate the lightning induced over-voltage on the transmission line installed with air gap componen...

In order to study the strong electromagnetic pulse effect of critically vulnerable equipment in power systems and evaluate survivability under high-altitude pulses, it is necessary characteristics transient response metal oxide arresters by experiment. this paper, an experimental platform for conduction current injection a typical 10 kV arrester was set up, key parameters such as peak value ove...