Position and Shape of Break Arcs Driven by Transverse Magnetic Field

Tomoaki SASAKI; Junya SEKIKAWA; Takayoshi KUBONO

doi:10.1587/transele.E95.C.1527

—Papers selected from International Session on Electro-Mechanical Devices 2011 (IS-EMD2011) and other recent research results—

Position and Shape of Break Arcs Driven by Transverse Magnetic Field

Tomoaki SASAKI, Junya SEKIKAWA, Takayoshi KUBONO

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Keywords: break arc, magnet, external magnetic field, 48V, electrical contact

JOURNAL RESTRICTED ACCESS

2012 Volume E95.C Issue 9 Pages 1527-1530

DOI https://doi.org/10.1587/transele.E95.C.1527

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Abstract

Break arcs are generated in a DC48V and 10A resistive circuit. The external transverse magnetic field of a permanent magnet is applied to the break arcs. The position and shape of the break arc are investigated. As a result, it is confirmed that the cathode spot region was shifted upward earlier than the anode spot region. This result shows that the cathode spot region is easily driven by the transverse magnetic field than the anode spot region.

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