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01692 am a22002653u 4500 |
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79127 |
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|a dc
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|a Jadidian, Jouya
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|a Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
|e contributor
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|a Massachusetts Institute of Technology. Research Laboratory of Electronics
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|a Jouya Jadidian
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|a Jadidian, Jouya
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|a Zahn, Markus
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|a Zahn, Markus
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|a Lavesson, Nils
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|a Widlund, Ola
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|a Borg, Karl
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|a Surface flashover breakdown mechanisms on liquid immersed dielectrics
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|b American Institute of Physics (AIP),
|c 2013-06-17T15:32:52Z.
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|z Get fulltext
|u http://hdl.handle.net/1721.1/79127
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|a Flashover formation and expansion mechanisms on the surfaces of different dielectrics immersed in transformer oil have been numerically analyzed. Streamers emanating from a needle electrode tend to transform to surface flashovers if the immersed dielectric permittivity is higher than the liquid permittivity and/or the dielectric interfacial surface cuts the path of the streamer. Perpendicular interface of the immersed dielectric impedes the breakdown by deflecting the streamer and slowing down the surface flashover. The parallel dielectric interface, however, assists the breakdown by regulating the surface flashover velocity to an approximately constant value (∼10 km/s).
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|a IEEE Dielectrics and Electrical Insulation Society
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|a en_US
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|a Article
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|t Applied Physics Letters
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