Performance of surge arresters in a low voltage distribution system

This paper is about a simulation model developed in order to indicate the optimal choice and connection of Surge Protective Devices (SPDs) in a domestic electrical installation according to their performance when a direct lightning flash strikes the distribution system. The proposed real-time model which is implemented in Simulink represents a LV distribution system that includes two simplified households. The related benefits of this kind of work are highly significant, as such overvoltages are a threat not only for the household equipment but, most importantly, for the human residents.