Discrimination between external short circuits and internal faults in transformer windings using discrete wavelet transforms

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dc.contributor.authorNgaopitakkul, A.
dc.contributor.authorKunakorn, A.
dc.contributor.authorNgamroo, I.
dc.date.accessioned2026-08-06T09:53:46Z
dc.date.available2026-08-06T09:53:46Z
dc.date.issued2005-12-01
dc.description.abstractIn this paper, a technique for separation between internal faults in a two-winding three-phase transformer and external short circuits is presented. The fault detection algorithm is constructed on the basis of coefficient comparison from signals decomposed from Discrete Wavelet Transform. Computer simulations are performed using ATP/EMTP as well as MATLAB/Simulink. Various cases and fault types are studied to verify the validity of the algorithm. It is found that the proposed method gives a satisfactory accuracy, and will be particularly useful in a development of a modern differential relay for a transformer protection scheme. © 2005 IEEE.
dc.identifier.citationConference Record IAS Annual Meeting IEEE Industry Applications Society, 1, 448-452, 2005
dc.identifier.doi10.1109/IAS.2005.1518346
dc.identifier.issn01972618
dc.identifier.other2-s2.0-33745877942
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/1187
dc.sourceConference Record IAS Annual Meeting IEEE Industry Applications Society
dc.subjectDiscrete Wavelet Transform
dc.subjectExternal short circuits
dc.subjectInternal faults
dc.subjectTransformer windings
dc.titleDiscrimination between external short circuits and internal faults in transformer windings using discrete wavelet transforms
dc.typeConference Paper

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