Title :
How the lightning performance of electrical power systems is affected by the frequency dependence of soil parameters
Author :
Visacro, Silverio ; Silveira, Fernando H. ; Alipio, Rafael
Author_Institution :
LRC-Lightning Res. Center, UFMG-Fed. Univ. of Minas Gerais, Belo Horizonte, Brazil
Abstract :
By means of a general approach this work presents a synthesis of recent scientific developments regarding the frequency dependence of soil resistivity and permittivity, focusing on the impact of this effect on the lightning performance of electrical systems. Specifically, it considers the impact on the response of grounding electrodes and of transmission lines subjected to lightning currents, along with the influence on voltages induced at distribution lines.
Keywords :
electrical resistivity; electrodes; lightning protection; permittivity; soil; transmission lines; distribution lines; electrical power systems; frequency dependence; grounding electrodes; lightning currents; lightning performance; permittivity; soil parameters; soil resistivity; transmission lines; Conductivity; Electrodes; Frequency dependence; Grounding; Lightning; Power transmission lines; Soil; electrical power systems; frequency dependence of soil parameters; grounding; lightning-induced voltages; transmission lines;
Conference_Titel :
Lightning Protection (ICLP), 2014 International Conference o
Conference_Location :
Shanghai
DOI :
10.1109/ICLP.2014.6973325
