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Title: COMPUTATIONAL MODEL FOR ELECTRODYNAMICAL FORCES INSIDE HIGH VOLTAGE SF6 BASED SWITCHING DEVICES
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COMPUTATIONAL MODEL FOR ELECTRODYNAMICAL FORCES INSIDE HIGH VOLTAGE SF6 BASED SWITCHING DEVICES
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1314-2704
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English
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19
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4.1
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This paper aims to present a new analytical model for the contact area of all switching devices, at all voltage and current levels. It was proposed in order to recalculate all the computational formulas related to the electrodynamical forces which inevitably appear in a mostly symmetric contact, with a different shape, other than a sharpen or pointed one. When applying this model, the very simplifying hypothesis of the constant current density on equipotential stiction surfaces for the crossing current is completely abandoned. These new expressions could experimentally be verified by means of a simple device. By using this model, we can study the ?attraction?, electrodynamical forces that may appear in an electrical contact belonging to any switching device used in electrical and power engineering technique. This research could improve both design and maintenance of new and existing switching equipment like contactors, low voltage switches, oil submersed switches or even SF6 high voltage ones.
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conference
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19th International Multidisciplinary Scientific GeoConference SGEM 2019
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19th International Multidisciplinary Scientific GeoConference SGEM 2019, 30 June - 6 July, 2019
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Proceedings Paper
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STEF92 Technology
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International Multidisciplinary Scientific GeoConference-SGEM
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Bulgarian Acad Sci; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Slovak Acad Sci; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; World Acad Sci; European Acad Sci, Arts & Letters; Ac
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91-98
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30 June - 6 July, 2019
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website
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cdrom
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5817
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Electrodynamical Forces; Electrical Contacts; Commutation Devices
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