Title :
TLM (transmission-line modeling method) applied to grounding systems
Author :
Ferreira, Golberi S. ; Silveira, Jony L. ; Raizer, Adroaldo
Author_Institution :
Centro Fed. de Educacao Tecnologica, Florianopolis, Brazil
Abstract :
The use of TLM-TD (transmission-line modeling method time domain) to analyze problems of high frequency transient behavior of grounding systems is presented. A set of TLM numerical simulations was developed for different grounding configurations, usually employed to protect electrical installation in high or low voltages. Rods, wires or grids can compose the configurations, which are excited by lightning currents. Results were obtained to compare TLM method with other references. In addition, an investigation on the use of stratified or nonstratified soil was developed
Keywords :
earth electrodes; electromagnetic compatibility; soil; time-domain analysis; transmission line theory; EMC; electrical installation protection; electromagnetic compatibility; grids; grounding systems; high voltages; lightning currents; low voltages; nonstratified soil; rods; stratified soil; symmetrical condensed node; time domain; time-domain differential method; transmission-line modeling method; wires; Frequency; Grounding; Lightning; Low voltage; Numerical simulation; Protection; Time domain analysis; Transient analysis; Transmission lines; Wires;
Conference_Titel :
Electromagnetic Compatibility, 2001. EMC. 2001 IEEE International Symposium on
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-6569-0
DOI :
10.1109/ISEMC.2001.950575
