Zobrazeno 1 - 9
of 9
pro vyhledávání: '"F. L. M. Andrade"'
Autor:
Francisco da Chagas Fernandes Guerra, Edson Guedes da Costa, Regelii Suassuna de Andrade Ferreira, Jalberth Fernandes de Araujo, F. L. M. Andrade
Publikováno v:
IET Science, Measurement & Technology. 12:872-877
Two of the main problems studied in protective current transformers (CTs) are the saturation and residual flux in the ferromagnetic core. To minimise the effects of high saturation levels and residual flux, a gapped core CT can be employed. Although
Autor:
E. L. Carvalho Junior, E. T. Wanderley Neto, F. L. M. Andrade, George R. S. Lira, Tarso Vilela Ferreira, J. Pissolato Filho, Edson Guedes da Costa, G. S. Bolacell, C. M. B. Cordeiro, M. A. Rosa, M. J. Cinelli
Publikováno v:
Lecture Notes in Electrical Engineering ISBN: 9783030316792
Many power system components are monitored based on static ratings. An emblematic example is the determination of the maximum current value for a given conductor (ampacity), which takes into account temperature estimates of the conductor, based on it
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09bb9b7c313bff2bee80879ce23e677e
https://doi.org/10.1007/978-3-030-31680-8_49
https://doi.org/10.1007/978-3-030-31680-8_49
Autor:
Edson Guedes da Costa, Arthur Francisco Andrade, F. L. M. Andrade, George R. S. Lira, Clarice S. H. Soares
Publikováno v:
Energies
Volume 12
Issue 16
Energies, Vol 12, Iss 16, p 3075 (2019)
Volume 12
Issue 16
Energies, Vol 12, Iss 16, p 3075 (2019)
International standards prescribe overvoltage tests to evaluate the insulating material performance of high-voltage cables. However, it is difficult to manage the electric fields at the cable ends when laboratory measurements are carried out because
Autor:
Tarso Vilela Ferreira, F. L. M. Andrade, Edson Guedes da Costa, André Dantas Germano, Jalberth Fernandes de Araujo
Publikováno v:
IEEE Transactions on Power Delivery. 31:2206-2214
A methodology based on computer simulations and aiming to estimate the lifespan of transformer windings after the occurrence of short circuits is presented in this paper. The Von Mises and fatigue criteria are employed to determine the failure proxim
Autor:
Edson Guedes da Costa, F. L. M. Andrade, Clarice S. H. Soares, Arthur Francisco Andrade, R S Lira George
Publikováno v:
2018 IEEE International Conference on High Voltage Engineering and Application (ICHVE).
High voltage cables have been employed in industry for underground and underwater power transmission. The reliable operation of a high voltage cable directly depends on the performance of its insulating material. Thus, acceptable dielectric performan
Publikováno v:
2018 Simposio Brasileiro de Sistemas Eletricos (SBSE).
Transformers are essential equipment to the power electric systems continuity and, therefore, they are object of several studies in order to determine the main factors that can exercise negative impact on the equipment performance. One of these facto
Autor:
E. G. da Costa, Rafael Mendonça Rocha Barros, F. L. M. Andrade, Tarso Vilela Ferreira, Joseana Macêdo Fechine Régis de Araújo
Publikováno v:
Web of Science
In this research several optimization methods were used to determine the optimal design for a corona ring. The following methods were utilized: Nelder-Mead, COBYLA and BOBYQA. In addition, a software based on the Finite Element Method was used to per
Autor:
F. L. M. Andrade, Edson Guedes da Costa, Rafael Mendonça Rocha Barros, Tarso Ferreira Vilela, Jalberth Fernandes de Araujo
Publikováno v:
Anais do VI Simpósio Brasileiro de Sistemas Elétricos.
Autor:
F. L. M. Andrade, Edson Guedes da Costa, M. A. O. Rodrigues, Jalberth Fernandes de Araujo, P. B. Vilar, J. N. Caminha Filho, F. S. Moreira, Tarso Vilela Ferreira, W. R. de Lima
Publikováno v:
2012 Annual Report Conference on Electrical Insulation and Dielectric Phenomena.
This paper presents field results for a pollution estimation system based on ultrasound noise and Statistical AutoAssociative Artificial Neural Networks (SA³N²). The system extracts spectral information from the ultrasonic noise emitted by the coro