The Characteristics of Vacuum Arc in the Process of DC Interruption Using Butt Contacts and TMF Contacts

The application of vacuum interrupters in dc current interruption highlights the interdependence of the contact design and the arc behavior. In this investigation, the characteristics of drawn vacuum arc in the process of dc load current interruption using butt contacts and a commercial transverse m...

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Published in:IEEE transactions on plasma science 2014-06, Vol.42 (6), p.1736-1741
Main Authors: Liu, Luhui, Zhuang, Jinwu, Xu, Guoshun, Zhang, Chao, Jiang, Zhuangxian, Wu, Jin
Format: Article
Language:English
Subjects:
Bridge circuits
Butt contact
Cathodes
Contacts
dc interruption
Educational institutions
Electric currents
Interrupters
Magnetic fields
Metals
Plasmas
TMF contact
vacuum arc
Vacuum arcs
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cited_by cdi_FETCH-LOGICAL-c338t-a706c55b18938abbbc30fd921d57e359a3244254add174f0b9b4fe6ef07225923
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container_end_page 1741
container_issue 6
container_start_page 1736
container_title IEEE transactions on plasma science
container_volume 42
creator Liu, Luhui
Zhuang, Jinwu
Xu, Guoshun
Zhang, Chao
Jiang, Zhuangxian
Wu, Jin
description The application of vacuum interrupters in dc current interruption highlights the interdependence of the contact design and the arc behavior. In this investigation, the characteristics of drawn vacuum arc in the process of dc load current interruption using butt contacts and a commercial transverse magnetic field (TMF) contacts were recorded with a high-speed camera. In a drawn vacuum arc, the arc sequence began with one or two bridge arc columns formed after the rupture of the molten metal bridge. Parallel columns in the butt contact were observed for not more than half of the trials, whereas an intermediate stage of two parallel columns was always found in the TMF contact. The interruption tests indicated that the arc in two columns mode occupied more surface had higher interrupt capability. The role of the slots on TMF contact to the arc appearance was discussed. It can be concluded that, for dc load current interruptions below 5 kA, if a short break time (
doi_str_mv 10.1109/TPS.2014.2320574
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It can be concluded that, for dc load current interruptions below 5 kA, if a short break time (&lt;1 ms) is required, a TMF contact is preferred; if there is no special break time required then a butt contact is preferred.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TPS.2014.2320574</doi><tpages>6</tpages></addata></record>
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subjects Bridge circuits
Butt contact
Cathodes
Contacts
dc interruption
Educational institutions
Electric currents
Interrupters
Magnetic fields
Metals
Plasmas
TMF contact
vacuum arc
Vacuum arcs
title The Characteristics of Vacuum Arc in the Process of DC Interruption Using Butt Contacts and TMF Contacts
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