Please use this identifier to cite or link to this item: https://hdl.handle.net/10321/3951
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dc.contributor.authorNgema, Philanien_US
dc.contributor.authorBuraimoh, Elutunjien_US
dc.contributor.authorDavidson, Innocenten_US
dc.date.accessioned2022-04-26T13:28:39Z-
dc.date.available2022-04-26T13:28:39Z-
dc.date.issued2022-01-25-
dc.identifier.citationNgema, P., Buraimoh, E. and Davidson, I. 2022. A new technique for improvement differential relay performance in power transformers. Presented at: 2022 30th Southern African Universities Power Engineering Conference (SAUPEC). doi:10.1109/saupec55179.2022.9730768en_US
dc.identifier.isbn9781665468879-
dc.identifier.urihttps://hdl.handle.net/10321/3951-
dc.description.abstractTransformer protection devices are often used to identify internal or external transformer problems and act to either prevent damage or unnecessarily disconnect power transformers. This study proposes a new differential element that combines harmonic restraint, security, and reliability with harmonic blocking speed to improve the relay performance in a power transformer. Under high load, a negative-sequence differential element adds more sensitivity for internal turn-to-turn failures. External fault detection monitoring enhances security in an external problem involving current transformer (CT) saturation. Furthermore, overcurrent elements may be configured to vary dynamically in operation is provided. This element enhances protection coordination for various operating conditions without requiring modifications to the transformer group settings. The balance of the paper discusses the use of an under-load tap changer using a time-synchronized phasor monitoring system to reduce loop current and losses in parallel transformer applications.en_US
dc.format.extent5 pen_US
dc.language.isoenen_US
dc.publisherIEEEen_US
dc.subjectPercentage differential relaysen_US
dc.subjectHarmonicsen_US
dc.subjectPower transformeren_US
dc.subjectInternal and external faultsen_US
dc.titleA new technique for improvement differential relay performance in power transformersen_US
dc.typeConferenceen_US
dc.date.updated2022-04-16T05:15:49Z-
dc.relation.conference2022 30th Southern African Universities Power Engineering Conference (SAUPEC)en_US
dc.identifier.doi10.1109/saupec55179.2022.9730768-
item.fulltextWith Fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.languageiso639-1en-
item.openairetypeConference-
item.grantfulltextopen-
item.cerifentitytypePublications-
Appears in Collections:Research Publications (Engineering and Built Environment)
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