Zobrazeno 1 - 10 of 29 pro vyhledávání: '"Vilson Luiz Coelho"'
1
Análise Comparativa de Modelos do Fenômeno da Ionização do Solo nos Aterramentos das Redes Aéreas de Distribuição
Autor: Vilson Luiz Coelho, Alexandre Orsi, Murilo Velho, Hugo Armando Dominguez Almaguer
Publikováno v: Journal of Engineering and Applied Research; Vol 7 No 1 (2022): Revista de Engenharia e Pesquisa Aplicada; 47-58
Revista de Engenharia e Pesquisa Aplicada; v. 7 n. 1 (2022): Revista de Engenharia e Pesquisa Aplicada; 47-58
Revista de Engenharia e Pesquisa Aplicada
Universidade Federal de Pernambuco (UFPE)
instacron:UFPE
This paper analyzes the behavior of the overvoltage levels on the primary side of overhead distribution lines considering the phenomenon of soil ionization at grounding under lightning condition. To this end, two formulations were evaluated: The Dyna
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7df203d9fb18248f272b6e7928db1a9
https://doi.org/10.25286/repa.v7i1.1730
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2
Um Estudo do Uso da Base Engastada dos Postes de Concreto Como Aterramento para Redes Aéreas de Distribuição
Autor: Deyvi Saquetti, Vilson Luiz Coelho, Hugo A. D. Almaguer
Publikováno v: Revista de Engenharia e Pesquisa Aplicada. 6:9-21
Este trabalho apresenta um estudo do comportamento das bases engastadas dos postes de concreto quando utilizadas como estruturas de aterramento em redes aéreas de distribuição de energia elétrica. O poste tipo duplo T, que é um dos mais empregad
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5bb525062d45927708b25b2203523775
https://doi.org/10.25286/repa.v6i1.1369
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5
Development of a new methodology for measurements of earth resistance, touch and step voltages within urban substations
Autor: Wilson Valente, Vilson Luiz Coelho, A. Raizer
Publikováno v: Electric Power Systems Research. 153:111-118
This paper discusses the development of a new methodology for measurements of earth resistance and touch and step voltages in ground mesh of urban power substations. The main challenge of the work is to find a feasible solution for performing earth r
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ae1e22d80aa4f83b3895ac5bcf91683c
https://doi.org/10.1016/j.epsr.2017.01.025
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6
Impulse Impedance Measurement Methodology in Space Restricted Locations
Autor: Thiago Schmoeller, A. Raizer, Vilson Luiz Coelho
Publikováno v: 2019 International Symposium on Lightning Protection (XV SIPDA).
This paper presents the analysis results of field measurements of ground resistance and impulse impedance. First, the Current Derivative Method is presented, whose objective is to obtain the RLF steady-state ground resistance value from the transient
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dd8909db5817ee86b0921a9403422013
https://doi.org/10.1109/sipda47030.2019.8951607
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7
Simulation of a Lightning Protection System Considering the Different Protection Levels
Autor: Vilson Luiz Coelho, Tuany Lucietti, Giovanna de Lorenzi Canever
Publikováno v: 2019 International Symposium on Lightning Protection (XV SIPDA).
The present paper has as main approach a performance study of a Lightning Protection System (LPS) as a function of the different conditions of the protection levels predicted on the IEC 62305, in effect today. Also based on a bibliographic research,
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c20fd1a18cbce37f6ef42d5a896be145
https://doi.org/10.1109/sipda47030.2019.8951587
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8
Analysis of the Maximum Overvoltages Conducted to the Low Voltage Electric Installations
Autor: Vilson Luiz Coelho, Taiane Pereira dos Reis, A. Raizer
Publikováno v: 2019 International Symposium on Lightning Protection (XV SIPDA).
Studies indicate that approximately 100 million lightning flashes reach Brazilian soil per year, causing damages to both energy utilities and consumers. In critical periods, with great atmospheric activity, there is a significant increase in consumer
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0c0e13bc86ab1df705bacd225cef7748
https://doi.org/10.1109/sipda47030.2019.8951574
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9
The influence of seasonal soil moisture on the behavior of soil resistivity and power distribution grounding systems
Autor: Rafael A. Coelho, Alexandre Piantini, José Osvaldo Saldanha Paulino, Hugo A. D. Almaguer, Vilson Luiz Coelho, Wallace do Couto Boaventura
Publikováno v: Electric Power Systems Research. 118:76-82
This paper discusses the influence of the moisture content on the seasonal behavior of both soil resistivity and ground resistance typical of power distribution grounding systems. Although field surveys indicate a wide variation in the moisture conte
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f0414408f4a4bdc5b4ae0b209fcb0562
https://doi.org/10.1016/j.epsr.2014.07.027
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10
Technical economic analysis of design methods of subtransmission line grounding systems
Autor: Giovanna de Lorenzi Canever, Alexandre Piantini, Douglas de Matos Magnus, Vilson Luiz Coelho
Publikováno v: 2017 International Symposium on Lightning Protection (XIV SIPDA).
This paper presents a study of the lightning performance of subtransmission lines located in high ground flash density areas according to the design of the grounding systems. Analysis of the behavior of 69 kV and 138 kV lines under direct lightning s
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dea628ebbfe6aa7c2feee8ebdcbbd37b
https://doi.org/10.1109/sipda.2017.8116942
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