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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Dimensionamento de sistemas de aterramento em linhas de transmiss?o para escoamento eficiente de correntes de surtos atmosf?ricos

D?lia, Ant?nio dos Santos 14 December 2012 (has links)
Made available in DSpace on 2014-12-17T14:56:12Z (GMT). No. of bitstreams: 1 AntonioSD_DISSERT.pdf: 1216426 bytes, checksum: 7fd76cc37669a46f507ab80033e1227e (MD5) Previous issue date: 2012-12-14 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / This work presents in a simulated environment, to analyze the length of cable needed counterweight connected to ground rod, able to avoid the phenomenon of flashover return, back flashover, the insulator chains of transmission lines consisting of concrete structures when they are subjected to lightning standardized regarding certain resistivity values of some kinds of soil and geometric arrangements of disposal of grounding systems structures / Este trabalho apresenta, em ambiente simulado, a an?lise do comprimento necess?rio de cabo contrapeso interligado a haste de aterramento, capaz de evitar o fen?meno de descarga disruptiva de retorno, back flashover, nas cadeias de isoladores de Linhas de Transmiss?o constitu?das de estruturas de concreto, quando s?o submetidas a descargas atmosf?ricas padronizadas considerando determinados valores de resistividade de solo e alguns tipos de disposi??o de arranjos geom?tricos de sistemas de aterramento das estruturas

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