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dc.contributor.authorMohammadhosein, Milad
dc.contributor.authorNiayesh, Kaveh
dc.contributor.authorShayegani Akma, Amir Abbas
dc.contributor.authorMohseni, Hossein
dc.date.accessioned2021-05-12T09:29:10Z
dc.date.available2021-05-12T09:29:10Z
dc.date.created2021-05-03T09:13:20Z
dc.date.issued2021
dc.identifier.issn1751-8687
dc.identifier.urihttps://hdl.handle.net/11250/2755133
dc.description.abstractOnline non‐invasive methods to assess circuit breaker condition have been under consideration in recent years. The combination of the arcing time and the short‐circuit current recorded by protective relays can be utilized to assess the degrading impact of current interruption on arcing contacts. In many previous investigations, an integral over arcing time of different functions of current and voltage has been proposed to predict the erosion rate of arcing contacts. Although the arcing time is a crucial parameter for these indices, no easily adaptable method to online condition assessment is available. This paper proposes a method for online determination of arcing time based on the measurement of the switching time of the auxiliary contacts. Several experiments have been performed under no‐load conditions as well as during short‐circuit current interruption, on two circuit breakers with different trip coil excitations (AC and DC). The results show that the delay time between the contact separation instant of the arcing contacts and the switching time of the auxiliary contacts has a very low jitter. This enables precise determination of the arcing time by measurement of the switching time of the auxiliary contacts, which is accessible during the online operation of circuit breakers.en_US
dc.language.isoengen_US
dc.publisherWiley Open Accessen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleOnline non‐invasive evaluation of arcing time for condition assessment of high‐voltage gas circuit breakersen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.source.journalIET Generation, Transmission & Distributionen_US
dc.identifier.doihttps://doi.org/10.1049/gtd2.12076
dc.identifier.cristin1907682
dc.description.localcode© 2021 The Authors. IET Generation, Transmission & Distribution published by John Wiley & Sons Ltd on behalf of The Institution of Engineering and Technology This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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