A Circuit Approach to the Calculation of Lightning Transients in Cage-like Multiconductor Systems

Abstract

An efficient algorithm is proposed for calculating lightning transients in cage-like multiconductor systems. Capacitance and impedance parameters of the conducting branches are evaluated by the mean potential method and Neumann's formula, respectively. The equivalent network is formed for the multiconductor systems by a series of coupled π-type circuits. The lightning transient responses in the multiconductor systems are then obtained using Fourier transform. When the algorithm was tested using an experimental set-up, good agreement was found between the calculated and measured results.