Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Fethi Meghnefi"'
Autor:
Arnaud Nanfak, Eke Samuel, Issouf Fofana, Fethi Meghnefi, Martial Gildas Ngaleu, Charles Hubert Kom
Publikováno v:
IET Nanodielectrics, Vol 7, Iss 3, Pp 97-130 (2024)
Abstract A key factor in ensuring the efficient and safe operation of power transformers is the early and accurate diagnosis of incipient faults. Among the tools available to achieve this goal, dissolved gas analysis (DGA) is widely used by power tra
Externí odkaz:
https://doaj.org/article/57d2079b3d8a4723bd7b45cb69fff8c6
Publikováno v:
Energies, Vol 17, Iss 14, p 3533 (2024)
Modern power grids are undergoing a significant transformation with the massive integration of renewable, decentralized, and electronically interfaced energy sources, alongside new digital and wireless communication technologies. This transition nece
Externí odkaz:
https://doaj.org/article/6469c91ff59c4c72b06d9593d85dbbba
Publikováno v:
Energies, Vol 17, Iss 13, p 3171 (2024)
Transformers are fundamental and among the most expensive electrical devices in any power transmission and distribution system. Therefore, it is essential to implement powerful maintenance methods to monitor and predict their condition. Due to its ma
Externí odkaz:
https://doaj.org/article/c17fde72c78841df81ba64935344f061
Autor:
Regelii Suassuna de Andrade Ferreira, Patrick Picher, Fethi Meghnefi, Issouf Fofana, Hassan Ezzaidi, Christophe Volat, Vahid Behjat
Publikováno v:
Energies, Vol 16, Iss 11, p 4364 (2023)
Frequency response analysis (FRA) is being employed worldwide as one of the main methods for the internal condition assessment of transformers due to its capability of detecting mechanical changes. Nonetheless, the objective interpretation of FRA mea
Externí odkaz:
https://doaj.org/article/99810b57b604421cb92a25a0af4adc9c
Autor:
Mohamed Lamine Amrani, Slimane Bouazabia, Issouf Fofana, Fethi Meghnefi, Marouane Jabbari, Djazia Khelil, Amina Boudiaf
Publikováno v:
Energies, Vol 14, Iss 20, p 6653 (2021)
In this contribution, a mathematical model allowing for the prediction of the AC surface arc propagation on polluted insulators under non-uniform electric field is proposed. The approach is based on the experimental concept of Claverie and Porcheron.
Externí odkaz:
https://doaj.org/article/dac6f64af7fd477c8b820e3d7ccb9bdd
Autor:
Issouf Fofana, Janvier Sylvestre N’cho, Amidou Betie, Epiphane Hounton, Fethi Meghnefi, Kouba Marie Lucia Yapi
Publikováno v:
Energies, Vol 13, Iss 16, p 4064 (2020)
Among the main causes of outdoor insulation failures is their poor specifications in terms of leakage distances. This happens when the selected criteria are unable to cope with all the stresses imposed by the changes in environmental pollutions. Ther
Externí odkaz:
https://doaj.org/article/3ecef2049c314143b3a8bc597682f20b
Publikováno v:
Energies, Vol 6, Iss 4, Pp 2204-2220 (2013)
Frequency Domain Spectroscopy (FDS) is an effective tool allowing assessing the condition of oil-paper insulation system in power equipment. However, results from these measurements are known to be greatly influenced by various parameters, including
Externí odkaz:
https://doaj.org/article/d16ce5519b2a4c8cbed7275d5917e261
Autor:
Arnaud Nanfak, Samuel Eke, Fethi Meghnefi, Issouf Fofana, Gildas Martial Ngaleu, Charles Hubert Kom
Publikováno v:
IEEE Transactions on Dielectrics and Electrical Insulation. :1-1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79bbfc4aa936e06c72a4069a61f5a5c3
https://doi.org/10.1109/tdei.2023.3275119
https://doi.org/10.1109/tdei.2023.3275119
Publikováno v:
Energies, Vol 11, Iss 3, p 517 (2018)
It is now well-established that moisture in the oil paper insulation used in power and instrument transformers significantly reduces the transformers’ lifetimes, and can eventually lead to premature failure. This moisture should, therefore, always
Externí odkaz:
https://doaj.org/article/9be19b7d6969477497058940e0a832f5
Autor:
Beheshti Asl, Meysam1 (AUTHOR) mbasl@etu.uqac.ca, Fofana, Issouf1 (AUTHOR) ifofana@uqac.ca, Meghnefi, Fethi1 (AUTHOR)
Publikováno v:
Energies (19961073). Jul2024, Vol. 17 Issue 14, p3533. 40p.