Impedância de Surto de Sistemas Elétricos Constituídos por Múltiplos Condutores Verticais

Transmission towers are an essential component for the functioning of a country’s electrical system. In countries with large extension transmission lines and high incidence lightning, problems related to interaction between lightning quite intense. Thus, it is fundamental importance develop models that compute response system when electromagnetic transient established. This article aims present revised Jordan formula calculating surge impedance vertical conductor, its calculate multiple conductors. Neumann integrals also applied self mutual impedances The results impedances, typical 138 kV lines, from application modified formulas integral equations compared. According results, towers, percentage differences smaller than 1%, proving accuracy Jordan’s analytical formulas.