| Texto completo | |
| Autor(es): |
Asorza, J. E. Guevara
;
Azevedo, Walter L. M.
;
Pissolato Filho, J.
Número total de Autores: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Electric Power Systems Research; v. 247, p. 8-pg., 2025-10-01. |
| Resumo | |
Proper grounding is essential for mitigating the risks associated with lightning strikes on Overhead Transmission Lines (OHTL), as it helps protect equipment and ensures system reliability. To achieve this, various grounding system (G.S) designs can be implemented. This paper introduces two new alternatives to the Conventional grounding system (CGS): the "Compact Grounding System" (CMGS) and the "Improved Compact Grounding System" (IGS). These designs are intended to use a smaller installation area while delivering similar or even superior performance, particularly in managing Ground Potential Rise (GPR) and minimizing backflashovers during lightning strikes. Among the evaluated systems, the IGS demonstrated the best overall performance, achieving lower GPR and reducing the occurrence of backflashovers, even in challenging conditions with high-resistivity soils and high values of lightning current. The study highlights the potential of these innovative designs to improve the safety and efficiency of power transmission systems, especially in space-constrained and high-resistivity environments. (AU) | |
| Processo FAPESP: | 24/14472-6 - Estudo de descargas atmosféricas em linhas de transmissão mistas aéreas-subterrâneas usando formulações rigorosas para calcular os parâmetros de retorno do solo. |
| Beneficiário: | Jesus Enrique Guevara Asorza |
| Modalidade de apoio: | Bolsas no Exterior - Estágio de Pesquisa - Mestrado |
| Processo FAPESP: | 21/11258-5 - Centro de Pesquisa em Engenharia para a Mobilidade Aérea do Futuro (CPE-MAF) |
| Beneficiário: | Domingos Alves Rade |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa Centros de Pesquisa em Engenharia |
| Processo FAPESP: | 23/05066-1 - Estudo das sobretensões transitórias em linhas de transmissão subterrâneas e subaquáticas considerando modelos rigorosos do cálculo dos parâmetros de retorno do solo |
| Beneficiário: | Jesus Enrique Guevara Asorza |
| Modalidade de apoio: | Bolsas no Brasil - Mestrado |