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dc.contributor.authorMohammadhosein, Milad
dc.contributor.authorNiayesh, Kaveh
dc.contributor.authorShayegani Akmal, Amir Abbas
dc.contributor.authorMohseni, Hossein
dc.date.accessioned2019-02-28T12:17:29Z
dc.date.available2019-02-28T12:17:29Z
dc.date.created2018-11-27T09:14:53Z
dc.date.issued2018
dc.identifier.issn0885-8977
dc.identifier.urihttp://hdl.handle.net/11250/2588044
dc.description.abstractIn this paper, an effort has been made to evaluate the online condition of arc contacts as a vital component of interruption chamber in high voltage puffer type SF6 circuit breakers. The relationship between eroded mass caused by short-circuit current interruption and different thermal stress indices such as transferred electrical charge, current squared, and arc energy is investigated, by performing many experiments with different current amplitudes and arcing times. It is demonstrated that none of the known indices can solely determine mass erosion caused by the current interruption. Therefore, the equations including two of defined parameters are proposed to evaluate mass erosion. The method using arc energy and transferred electrical charge owns the highest accuracy in evaluating mass loss. However, considering the complexity of arc voltage measurements, a second method using current and arcing time can be also utilized. In addition, the development of erosion during the lifetime of arc contacts is studied. It is shown that arc roots tend to form on new uneroded areas of the contacts during current interruption, resulting in different erosion rates between the first few and subsequent interruptions due to change of morphology of the contacts after the first few switching operations.nb_NO
dc.language.isoengnb_NO
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)nb_NO
dc.titleOnline Assessment of Contact Erosion in High Voltage Gas Circuit Breakers based on different Physical Quantitiesnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionacceptedVersionnb_NO
dc.source.journalIEEE Transactions on Power Deliverynb_NO
dc.identifier.doi10.1109/TPWRD.2018.2883208
dc.identifier.cristin1635492
dc.description.localcode© 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.nb_NO
cristin.unitcode194,63,20,0
cristin.unitnameInstitutt for elkraftteknikk
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode2


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