Estudo da tensão induzida em linhas aéreas por descargas atmosféricas utilizando técnicas de modelo reduzido

• Ano de defesa: 1990
• Autor(a) principal: Wallace do Couto Boaventura
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Minas Gerais; UFMG
• Palavras-chave em Português: Engenharia Elétrica; Descargas elétricas; Sistemas de energia eletrica
• Link de acesso: http://hdl.handle.net/1843/BUOS-8D9G5R

This work is concerned with the development and implementation of a 1/200 scale reduced model for lightning induced voltage study in overhead lines. The modeling used for the discharge channel, return stroke, overhead line and ground are presented. Its presented the measuring methodology used as well. The calidity of S. Ruscks induced voltage theory is supported by the measurements done. Regarding the effects of the soil resistivity in the lightning induced voltage, is hás been shown that its study can be performed by using reduced models. A preliminary evaluation of soil resistivity effects on the induced voltage amplitude and waveform is presented.