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| New method for capturing arc of moving on switching apparatus |
| LIU Jiao-min, WANG Jing-hong |
| Institute of Intellectual Electric Apparatus, Hebei University of Technology, Tianjin 300130, China; Information Technology College, Hebei Normal University, Shijiazhuang 050091, China |
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Abstract The switching arc that occurs in contact gap when contact of low voltage apparatus closes or breaks in electric circuit is harmful to the contacts, insulation, and reliability of electrical gear because of its very high temperature. As arcing time is very short in switching gear, it is very difficult to observe arc phenomena directly for researchers. Therefore, visualization of switching arc is important for understanding arc phenomena, to analyze the arc features, and to improve the design and reliability of switching gear. Based on analyzing the visualization methods proposed by researchers, a new switching arc capturing approach is introduced in this paper. Arc image acquisition, and image processing techniques were studied. A switching arc image acquisition and visual simulation software based on high speed CCD camera hard ware system was designed and implemented to yield enhanced arc image with good visual effect.
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Received: 19 December 2006
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