Coefficient comparison technique of discrete wavelet transform for discriminating between external short circuit and internal winding fault in power transformer

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dc.contributor.authorPothisarn, C.
dc.contributor.authorJettanasen, C.
dc.contributor.authorKlomjit, J.
dc.contributor.authorNgaopitakkul, A.
dc.date.accessioned2026-08-06T10:03:46Z
dc.date.available2026-08-06T10:03:46Z
dc.date.issued2012-01-01
dc.description.abstractThis paper proposes a technique for detecting and identifying internal winding fault of three-phase two-winding transformer which variations of coefficients of high frequency component obtained from DWT of differential current are analyzed. The maximum coefficient details of DWT are performed as comparison indicator in order to discriminate between internal fault and external short circuit. Various cases based on Thailand electricity transmission and distribution systems are studied to verify the validity of the proposed algorithm. Results show that the proposed technique has good accuracy to detect fault and to identify its position in the considered system.
dc.identifier.citationLecture Notes in Engineering and Computer Science, 2196, 1129-1134, 2012
dc.identifier.issn20780958
dc.identifier.other2-s2.0-84867472903
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/4061
dc.sourceLecture Notes in Engineering and Computer Science
dc.subjectExternal short circuit
dc.subjectInternal winding fault
dc.subjectPower Transform
dc.subjectWavelet Transform
dc.titleCoefficient comparison technique of discrete wavelet transform for discriminating between external short circuit and internal winding fault in power transformer
dc.typeConference Paper

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