Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Leandro G. Feitosa"'
Autor:
Laís Pastre Dill, Leandro G. Feitosa, Geovana Carolina dos Santos, Richard Marek, Paulo O. Fernandes, Helena M. Wilhelm, Leonardo Galhardo
Publikováno v:
Engenharias: Metodologias e Práticas de Caráter Multidisciplinar 4
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe4fdedc915c990f3b5e6775e0268bbf
https://doi.org/10.22533/at.ed.89221100317
https://doi.org/10.22533/at.ed.89221100317
Autor:
Andreza Fasson Balielo, Leandro G. Feitosa, Paulo O. Fernandes, Geovana Carolina dos Santos, Giorgi Dal Pont, Helena M. Wilhelm
Publikováno v:
IEEE Electrical Insulation Magazine. 34:7-14
The most common cause of chemical aging of insulating oils is oxidation. Inhibited oils are insulating oils to which an oxidation inhibitor such as 2,6 ditertiary-butyl phenol or 2,6 dietertiary-butyl cresol has been added in order to slow the rate o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6becbd1102b826bb9e42ac5290ab671
https://doi.org/10.1109/mei.2018.8246117
https://doi.org/10.1109/mei.2018.8246117
Autor:
Claudio Aparecido Galdeano, Arley Mar, Daniel Aroucha Filho, Paulo O. Fernandes, Geovana Carolina dos Santos, Leandro G. Feitosa, Pedro José dos Santos Junior, Marcelo Ribeiro, Helena M. Wilhelm
Publikováno v:
2018 IEEE PES Transmission & Distribution Conference and Exhibition - Latin America (T&D-LA).
In this study thermally upgraded kraft paper was degraded in insulating oil in accelerated conditions, at different temperatures. In our aging method the paper was heated from 100 to 400 °C but the mineral insulating oil temperature was maintained b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::459b37b094ab20977afb3aeb05c22d39
https://doi.org/10.1109/tdc-la.2018.8511742
https://doi.org/10.1109/tdc-la.2018.8511742
Autor:
Paulo O. Fernandes, Vanderlei Ricardo Cruz, Helena M. Wilhelm, Leandro G. Feitosa, Fernando Wypych, Neffer Arvey Gomez Gomez, Mauricio Mattoso, Luiz Henrique Meyer
Publikováno v:
IEEE Electrical Insulation Magazine. 32:21-27
Partial discharges in SF6-insulated electrical equipment generate gaseous and solid by-products. The gaseous by-products remain in the SF6 during operation, reducing its insulation and heat conduction capacities, and causing deterioration of solid ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75df5cb4d08f9f7afea8f06a48a1e8ca
https://doi.org/10.1109/mei.2016.7361100
https://doi.org/10.1109/mei.2016.7361100
Autor:
Giorgi Dal Pont, Helena M. Wilhelm, Leandro G. Feitosa, Geovana Carolina dos Santos, Neffer Arvey Gomez Gomez, Paulo O. Fernandes
Publikováno v:
2017 IEEE Electrical Insulation Conference (EIC).
A method to determine mineral insulating oils remaining useful life by following oxidation induction time (OIT) using a test method originally applied to vegetable oils and biodiesel fuels was developed. When applied both to laboratory aged samples a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7a7b9402de9a260394c14d91108563a
https://doi.org/10.1109/eic.2017.8004691
https://doi.org/10.1109/eic.2017.8004691
Autor:
Andreza Fasson Balielo, Leandro G. Feitosa, Helena M. Wilhelm, Geovana Carolina dos Santos, Paulo O. Fernandes
Publikováno v:
2017 IEEE Electrical Insulation Conference (EIC).
This paper investigates the aging performance of two types of insulating mineral oils through accelerated aging experiments. One of the investigated insulating mineral oils was a naphthenic type, inhibited, commonly used by industry, and the other oi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da7ab199013e8e23360b9948e4d330d8
https://doi.org/10.1109/eic.2017.8004692
https://doi.org/10.1109/eic.2017.8004692
Autor:
Mauricio Mattoso, Luiz Henrique Meyer, Helena M. Wilhelm, Vanderlei Ricardo Cruz, Leandro G. Feitosa, Paulo O. Fernandes, Neffer Arvey Gomez Gomez
Publikováno v:
2014 IEEE Electrical Insulation Conference (EIC).
This work investigates the influence of the presence of SO 2 in SF 6 regarding its breakdown voltage. A test chamber was built to accommodate a gas pressure of 2 bar, with a pair of electrodes inside, separated by a variable distance. The SO 2 concen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd16b0ef1e309029b042a4dd0e78ad05
https://doi.org/10.1109/eic.2014.6869434
https://doi.org/10.1109/eic.2014.6869434