High-Speed Spectroscopic Imaging of Contact Surfaces Eroded by Break Arcs

Break arcs are generated between silver electrical contacts in a DC 48V-9.4A resistive circuit. The contact surface is irradiated by a blue LED (Light Emitting Diode). Only the image of contact surface irradiated by the LED is observed by a high-speed camera without the light emitted from the break...

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Bibliographic Details
Published in2012 IEEE 58th Holm Conference on Electrical Contacts (Holm) pp. 1 - 6
Main Author Sekikawa, J.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.09.2012
Subjects
Band pass filters
Cameras
Cathodes
Contacts
Light emitting diodes
Surface morphology
Surface treatment
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Summary:Break arcs are generated between silver electrical contacts in a DC 48V-9.4A resistive circuit. The contact surface is irradiated by a blue LED (Light Emitting Diode). Only the image of contact surface irradiated by the LED is observed by a high-speed camera without the light emitted from the break arc. Simultaneously, only the break arc is also observed by another high-speed camera. Time evolutions of the surface morphology being eroded by the break arcs and the motion of the break arc are observed with these cameras, simultaneously. It is shown that the regions of eroded contact surface are distinguished by the phases of arc duration during the occurrence of the break arcs.
ISBN:9781467307789
1467307785
ISSN:1062-6808
2158-9992
DOI:10.1109/HOLM.2012.6336584