Application of Magnitude and Phase Angle to Boundary Area-Based Algorithm for Unbalance Relay Protection Scheme in 115-kV Capacitor Bank

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dc.contributor.authorLertwanitrot, Praikanok
dc.contributor.authorNgaopitakkul, Atthapol
dc.date.accessioned2026-08-06T10:31:33Z
dc.date.available2026-08-06T10:31:33Z
dc.date.issued2021-01-01
dc.description.abstractIdentification of fault locations in capacitor banks is still under development. Although, faults in capacitor banks can be detected by an unbalance relay, it cannot identify the fault location. To address this issue, this study proposes an algorithm that can categorize protection zones, identify fault phases, and identify the fault locations in a capacitor bank using the phase angle boundary area. The result showed that the proposed algorithm was effective in indicating the fault location. Performance of the proposed algorithm was compared with conventional methods based on the Electricity Generating Authority of Thailand standard and phasor diagrams. It was verified that the proposed algorithm was more effective than the conventional methods. It is useful for the development of the unbalance relay operation.
dc.identifier.citationIEEE Access, 9, 35709-35717, 2021
dc.identifier.doi10.1109/ACCESS.2021.3062631
dc.identifier.issn21693536
dc.identifier.other2-s2.0-85101858643
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/11748
dc.sourceIEEE Access
dc.subjectFault location
dc.subjecthigh-voltage capacitor bank
dc.subjectsymmetrical components
dc.subjectunbalance current
dc.subjectunbalance relay
dc.subjectzero sequence current
dc.titleApplication of Magnitude and Phase Angle to Boundary Area-Based Algorithm for Unbalance Relay Protection Scheme in 115-kV Capacitor Bank
dc.typeArticle

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