EVALUATION OF LEMP EFFECTS ON COMPLEX WIRE STRUCTURES LOCATED ABOVE APERFECTLY CONDUCTING GROUND USING ELECTRIC-FIELD INTEGRAL-EQUATION INTIME-DOMAIN

In this paper, a novel approach for the implementation of scattering t heory is proposed in order to evaluate the electromagnetic effects of lightning return stroke on complex wire structures. An electric held i ntegral equation (EFIF) in time domain is employed to describe the ele ctromagnetic transients from lightning. The proposed approach is appli ed to single-phase three-phase as well as Y-shaped transmission line l ocated above a perfectly conducting ground. The simulation results rep roduce accurately experimental data available in the literature. The p roposed method provides new possibilities in estimation of lightning i ndirect effects on complex networks as an example ''radial transmissio n systems tapped from main switching substations'' are investigated.