Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Raúl García-Ovejero"'
Autor:
Stefano Frizzo Stefenon, Laio Oriel Seman, Anne Carolina Rodrigues Klaar, Raúl García Ovejero, Valderi Reis Quietinho Leithardt
Publikováno v:
Ain Shams Engineering Journal, Vol 15, Iss 6, Pp 102722- (2024)
Ensuring the reliability of electrical distribution networks is a pressing concern, especially given the power outages due to surface contamination on insulating components. Surface contamination can elevate surface conductivity, thereby resulting in
Externí odkaz:
https://doaj.org/article/9e9a0bc627294e32b2793ce93e3ceded
Autor:
Stéfano Frizzo Stefenon, Laio Oriel Seman, Bruno Antonio Pavan, Raúl García Ovejero, Valderi Reis Quietinho Leithardt
Publikováno v:
IET Generation, Transmission & Distribution, Vol 16, Iss 9, Pp 1865-1876 (2022)
Abstract Spacers in the compact power distribution network are essential components for the support, organization, and spacing of conductors. To improve the reliability of these components and have an optimized network design, it is necessary to eval
Externí odkaz:
https://doaj.org/article/fc1051716fa842b39671ef8f30b83c3f
Autor:
Nemesio Fava Sopelsa Neto, Stefano Frizzo Stefenon, Luiz Henrique Meyer, Raúl García Ovejero, Valderi Reis Quietinho Leithardt
Publikováno v:
Sensors, Vol 22, Iss 16, p 6121 (2022)
To improve the monitoring of the electrical power grid, it is necessary to evaluate the influence of contamination in relation to leakage current and its progression to a disruptive discharge. In this paper, insulators were tested in a saline chamber
Externí odkaz:
https://doaj.org/article/7729e1f451634b1ca0b7c3c514bfbf8b
Publikováno v:
Applied Sciences, Vol 11, Iss 21, p 9954 (2021)
As solar photovoltaics in buildings reaches maturity, grid integration and economic yield are topics of greater interest. The traditional design of photovoltaic installations has considered the optimal orientation of photovoltaic modules to be that w
Externí odkaz:
https://doaj.org/article/ee1e0ee83d2c487f94fc74e9758e1513
Autor:
Marcelo Picolotto Corso, Fabio Luis Perez, Stéfano Frizzo Stefenon, Kin-Choong Yow, Raúl García Ovejero, Valderi Reis Quietinho Leithardt
Publikováno v:
Computers, Vol 10, Iss 9, p 112 (2021)
Contamination on insulators may increase the surface conductivity of the insulator, and as a consequence, electrical discharges occur more frequently, which can lead to interruptions in a power supply. To maintain reliability in an electrical distrib
Externí odkaz:
https://doaj.org/article/dd43912df2fe41538f508e652fcbc577
Autor:
José Augusto Itajiba, Cézar Armando Cunha Varnier, Sergio Henrique Lopes Cabral, Stéfano Frizzo Stefenon, Valderi Reis Quietinho Leithardt, Raúl García Ovejero, Ademir Nied, Kin-Choong Yow
Publikováno v:
Energies, Vol 14, Iss 5, p 1318 (2021)
Although this is a fact that is not very explored in the literature, there are two possible forms to connect the stator winding of an induction motor in the delta. The choice for one of these forms defines the amplitude of the stator transient curren
Externí odkaz:
https://doaj.org/article/98b0eb1c06624a4682b702f1d0426e50
Autor:
Sara Vega Martinez, Edemar Morsch Filho, Laio Oriel Seman, Eduardo Augusto Bezerra, Vicente de Paulo Nicolau, Raúl García Ovejero, Valderi Reis Quietinho Leithardt
Publikováno v:
Applied Sciences, Vol 11, Iss 4, p 1554 (2021)
This work presents an integrated thermal-electrical simulation model, capable of taking into account the thermal and electrical effects of the battery and photovoltaic panels for each instant of time in a given orbit and attitude. Using the physical
Externí odkaz:
https://doaj.org/article/16a7d134bd974c1f940712d7e58ce89c
Autor:
Edemar Morsch Filho, Laio Oriel Seman, Cezar Antônio Rigo, Vicente de Paulo Nicolau, Raúl García Ovejero, Valderi Reis Quietinho Leithardt
Publikováno v:
Energies, Vol 13, Iss 24, p 6691 (2020)
During satellite development, engineers need to simulate and understand the satellite’s behavior in orbit and minimize failures or inadequate satellite operation. In this sense, one crucial assessment is the irradiance field, which impacts, for exa
Externí odkaz:
https://doaj.org/article/de84b5048a66436990573cf7204b2e48
Autor:
Arielle Verri Lucca, Luís Augusto Silva, Rodrigo Luchtenberg, Leonardo Garcez, Xuzeng Mao, Raúl García Ovejero, Ivan Miguel Pires, Jorge Luis Victória Barbosa, Valderi Reis Quietinho Leithardt
Publikováno v:
Sensors, Vol 20, Iss 21, p 6030 (2020)
Data on diagnosis of infection in the general population are strategic for different applications in the public and private spheres. Among them, the data related to symptoms and people displacement stand out, mainly considering highly contagious dise
Externí odkaz:
https://doaj.org/article/4639245b44694fe28927d41670e6bc96
Autor:
Hugo Lopes, Ivan Miguel Pires, Hector Sánchez San Blas, Raúl García-Ovejero, Valderi Leithardt
Publikováno v:
Computers, Vol 9, Iss 4, p 77 (2020)
The mobile devices cause a constant struggle for the pursuit of data privacy. Nowadays, it appears that the number of mobile devices in the world is increasing. With this increase and technological evolution, thousands of data associated with everyon
Externí odkaz:
https://doaj.org/article/7ebc92031ab04870b5411833f6d826e1