Zobrazeno 1 - 10
of 329
pro vyhledávání: '"High impedance faults"'
Autor:
Yuting Lan, Kun Yu, Xiangjun Zeng, Rong Cai, Qingbo Deng, Chenyu Wu, Shigeng He, Shijie Xu, Youcheng Jia
Publikováno v:
International Journal of Electrical Power & Energy Systems, Vol 162, Iss , Pp 110264- (2024)
The weak characteristics of high-impedance faults and the complex attributes of cross-country faults make faulty feeder detection of cross-country high-impedance faults difficult in medium-voltage networks. This paper deduces the zero-sequence equiva
Externí odkaz:
https://doaj.org/article/ba1c98d2f32b49f0ac4483c4dbe1c1ef
Publikováno v:
International Journal of Electrical Power & Energy Systems, Vol 159, Iss , Pp 110013- (2024)
Detecting High Impedance Faults (HIFs) in Distribution Systems (DSs) still requires effective solutions. HIFs can cause damage, such as shock hazards and bushfires. However, conventional protection cannot identify HIFs due to their low fault current,
Externí odkaz:
https://doaj.org/article/0aaf5108834b4ca3ba7bd950efee1a12
Publikováno v:
CSEE Journal of Power and Energy Systems, Vol 10, Iss 1, Pp 197-207 (2024)
Detection of high impedance faults (HIFs) has been traditionally a main challenge in the protection of distribution systems, since they do not generate enough current to be reliably detected by conventional over-current relays. Data-based methods are
Externí odkaz:
https://doaj.org/article/fa595238242d438dbcdf344df3eaac2e
Publikováno v:
IEEE Access, Vol 12, Pp 10932-10945 (2024)
Aimed at the high-impedance fault detection problem, this paper proposes a fault-feature enhancement method for actively detecting high-impedance faults. The essential characteristic of this method is that the fault features are actively enhanced wit
Externí odkaz:
https://doaj.org/article/2735fb6b18144d5cb4beb860e15323ce
Autor:
Andressa Tais Diefenthaler, Airam Teresa Zago Romcy Sausen, Mauricio De Campos, Paulo Sergio Sausen, Joao Manoel Lenz
Publikováno v:
IEEE Access, Vol 11, Pp 124499-124508 (2023)
High impedance faults constitute one of the biggest challenges in electrical power systems. In overhead distribution systems, faults are caused by tree branches that touch the electrical grid or by the rupture of energized conductors on low conductiv
Externí odkaz:
https://doaj.org/article/40c37e6e3df244c891872b9be81d7e1b
Autor:
Cagil Ramadan Ozansoy, Aladin Zayegh
Publikováno v:
IEEE Access, Vol 11, Pp 42924-42936 (2023)
Low fault currents, associated with Vegetation High Impedance Fault (VeHIF) events, are often challenging to clear by relying on traditional overcurrent based protection schemes. Low Frequency (LF) harmonics have readily been used in the literature a
Externí odkaz:
https://doaj.org/article/bef8f746bcd748b79bccf6ae0c850b72
Autor:
Juan Carlos Huaquisaca Paye, João Paulo A. Vieira, Jonathan Muñoz Tabora, André P. Leão, Murillo Augusto M. Cordeiro, Ghendy C. Junior, Adriano P. de Morais, Patrick E. Farias
Publikováno v:
Energies, Vol 17, Iss 5, p 1125 (2024)
Detecting and locating high impedance faults (HIF) in overhead distribution networks (ODN) remains one of the biggest challenges for manufacturers and researchers due to the complexity of this phenomenon, where the electrical current magnitude is sim
Externí odkaz:
https://doaj.org/article/dc77b032c1604530b83d13b5771f820e
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