A wavelet-based restricted earth-fault power transformer differential protection

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorAires, M. N. O.-
Autor(es): dc.creatorMedeiros, R. P.-
Autor(es): dc.creatorCosta, F. B.-
Autor(es): dc.creatorSilva, Kleber Melo e-
Autor(es): dc.creatorChavez, J. J.-
Autor(es): dc.creatorPopov, M.-
Data de aceite: dc.date.accessioned2021-10-14T18:10:27Z-
Data de disponibilização: dc.date.available2021-10-14T18:10:27Z-
Data de envio: dc.date.issued2021-05-25-
Data de envio: dc.date.issued2021-05-25-
Data de envio: dc.date.issued2020-
Fonte completa do material: dc.identifierhttps://repositorio.unb.br/handle/10482/41019-
Fonte completa do material: dc.identifierhttps://doi.org/10.1016/j.epsr.2021.107246-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/625252-
Descrição: dc.descriptionThis paper proposes a restricted earth fault protection based on the wavelet transform (REFW) for detecting ground faults close to the transformer neutral point (turn-to-ground faults) and supporting the conventional phase differential protection, which presents limitations in this kind of faults. The proposed REFW protection uses only high-frequency components instead of phasor estimation, speeding up the detection of turn-to-ground faults. A performance comparison between the proposed wavelet-based restricted earth-fault differential protection and the respective conventional restricted earth-fault (REF) unit was accomplished considering simulated turn-to-ground faults, involving a few winding turns. The proposed method is more efficient and faster than the conventional one, reaching a success rate of 100%.-
Publicador: dc.publisherElsevier-
Relação: dc.relationhttps://www.sciencedirect.com/science/article/abs/pii/S0378779621002273-
Direitos: dc.rightsAcesso Restrito-
Palavras-chave: dc.subjectProteção de transformadores-
Palavras-chave: dc.subjectAterramento elétrico-
Palavras-chave: dc.subjectTransformada wavelet-
Título: dc.titleA wavelet-based restricted earth-fault power transformer differential protection-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional – UNB

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