Rotational Motion of Break Arcs Driven by Radial Magnetic Field in a DC Resistive Circuit
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概要
- 論文の詳細を見る
Break arcs are generated between silver electrical contacts in a DC 42V-10A resistive circuit. Break arcs are driven by the radial magnetic field. The magnetic field is formed between the electrical contacts with a permanent magnet embedded in the cathode. The arc motion is taken with a high-speed camera and contact surfaces are observed after break operations. Experimental results with the magnet are compared with those without the magnet to confirm the effect of the embedded magnet. For break operations with the magnet following results are shown. Break arcs are rotationally driven by the radial magnetic field in the direction according to Lorentz force. The shortening effect of the arc duration is confirmed. The traces of the arc spots on the contact surfaces are ring-shaped, wide and uniform. This result shows the prevention effect of local erosion of electrical contacts. The rotational frequency of the break arc depends on the Lorentz force with the radial magnetic field.
- （社）電子情報通信学会の論文
- 2009-08-01
著者
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Kubono Takayoshi
Shizuoka Univ. Hamamatsu‐shi Jpn
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SEKIKAWA Junya
Shizuoka University
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Kubono Takayoshi
Shizuoka University
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Sekikawa Junya
Shizuoka Univ. Hamamatsu‐shi Jpn
関連論文
- Rotational Motion of Break Arcs Driven by Radial Magnetic Field in a DC Resistive Circuit
- Dependence of Motion of Breaking Arc on Contact Separating Speed for Ag and Pd Contact Pairs in a DC42V Resistive Circuit(Arc Discharge & Related Phenomena,Recent Development of Electromechanical Devices (Selected Papers from ICEC2006))
- Optical Observation of Arc Discharges between Electrical Contacts Breaking at Low Speed in a DC42V Resistive Circuit (国際セッション IS-EMD2005) -- (Arc Discharges & Related Phenomena)
- Cathode and Anode Bright-Spot Behaviors of Breaking Arc between Electrical Contacts (国際セッション IS-EMD2005) -- (Arc Discharges & Related Phenomena)
- Erosion of Electrical Contact Surfaces in Breaking Arcs at Low Separating Speed (国際セッション IS-EMD2005) -- (Arc Discharges & Related Phenomena)
- Observations of the Eroded Surfaces and the Motion of Arc Spots at Each Breaking Operation of Silver Electrical Contacts(Arc Discharge & Related Phenomena, IS-EMD2004-Recent Development of Electro-Mechanical Devices)
- Cathode and Anode Bright-Spot Behaviors of Breaking Arc between Electrical Contacts with Low Separating Speed(Arc Discharge & Related Phenomena, IS-EMD2004-Recent Development of Electro-Mechanical Devices)
- Temperature Measurement of Breaking Arcs between Cu-Cu, Ni-Ni and Pd-Pd contact pairs in a DC 42V-10A(Session 8 : Automotive Application)
- Cathode and Anode Bright Spot Behaviors of Breaking Arc between Electrical Contacts with the Low Separating Speed(Session 2 : Arc Discharges & Related Phenomena)
- Comparison between the Surface Condition of Electrical Contacts and the Behavior of breaking Arcs Observed with a High-speed Camera(Session 2 : Arc Discharges & Related Phenomena)