Real Time Spectroscopic Observation of Contact Surfaces Being Eroded by Break Arcs

Masato NAKAMURA; Junya SEKIKAWA

doi:10.1587/transele.E97.C.592

Real Time Spectroscopic Observation of Contact Surfaces Being Eroded by Break Arcs

Masato NAKAMURA, Junya SEKIKAWA

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Break arcs are generated in a DC48V and 12A resistive circuit. Silver electrical contacts are separated at constant opening speed. The cathode contact surface is irradiated by a blue LED. The center wavelength of the emission of the LED is 470nm. There is no spectral line of the light emitted from the break arcs. Only the images of contact surface are observed by a high-speed camera and an optical band pass filter. Another high-speed camera observes only the images of the break arc. Time evolutions of the cathode surface morphology being eroded by the break arcs and the motion of the break arcs are observed with these cameras, simultaneously. The images of the cathode surface are investigated by the image analysis technique. The results show that the moments when the expanded regions on the cathode surface are formed during the occurrence of the break arcs. In addition, it is shown that the expanded regions are not contacted directly to the cathode roots of the break arcs.

Publication: IEICE TRANSACTIONS on Electronics Vol.E97-C No.6 pp.592-598

Publication Date: 2014/06/01

Publicized

Online ISSN: 1745-1353

DOI: 10.1587/transele.E97.C.592

Type of Manuscript: PAPER

Category: Electromechanical Devices and Components

Authors

Masato NAKAMURA
Shizuoka University
Junya SEKIKAWA
Shizuoka University

Keyword

break arc, contact erosion, electrical contacts, high-speed camera, 48V

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Masato NAKAMURA, Junya SEKIKAWA, "Real Time Spectroscopic Observation of Contact Surfaces Being Eroded by Break Arcs" in IEICE TRANSACTIONS on Electronics, vol. E97-C, no. 6, pp. 592-598, June 2014, doi: 10.1587/transele.E97.C.592.
Abstract: Break arcs are generated in a DC48V and 12A resistive circuit. Silver electrical contacts are separated at constant opening speed. The cathode contact surface is irradiated by a blue LED. The center wavelength of the emission of the LED is 470nm. There is no spectral line of the light emitted from the break arcs. Only the images of contact surface are observed by a high-speed camera and an optical band pass filter. Another high-speed camera observes only the images of the break arc. Time evolutions of the cathode surface morphology being eroded by the break arcs and the motion of the break arcs are observed with these cameras, simultaneously. The images of the cathode surface are investigated by the image analysis technique. The results show that the moments when the expanded regions on the cathode surface are formed during the occurrence of the break arcs. In addition, it is shown that the expanded regions are not contacted directly to the cathode roots of the break arcs.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E97.C.592/_p

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@ARTICLE{e97-c_6_592,
author={Masato NAKAMURA, Junya SEKIKAWA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Real Time Spectroscopic Observation of Contact Surfaces Being Eroded by Break Arcs},
year={2014},
volume={E97-C},
number={6},
pages={592-598},
abstract={Break arcs are generated in a DC48V and 12A resistive circuit. Silver electrical contacts are separated at constant opening speed. The cathode contact surface is irradiated by a blue LED. The center wavelength of the emission of the LED is 470nm. There is no spectral line of the light emitted from the break arcs. Only the images of contact surface are observed by a high-speed camera and an optical band pass filter. Another high-speed camera observes only the images of the break arc. Time evolutions of the cathode surface morphology being eroded by the break arcs and the motion of the break arcs are observed with these cameras, simultaneously. The images of the cathode surface are investigated by the image analysis technique. The results show that the moments when the expanded regions on the cathode surface are formed during the occurrence of the break arcs. In addition, it is shown that the expanded regions are not contacted directly to the cathode roots of the break arcs.},
keywords={},
doi={10.1587/transele.E97.C.592},
ISSN={1745-1353},
month={June},}

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TY - JOUR
TI - Real Time Spectroscopic Observation of Contact Surfaces Being Eroded by Break Arcs
T2 - IEICE TRANSACTIONS on Electronics
SP - 592
EP - 598
AU - Masato NAKAMURA
AU - Junya SEKIKAWA
PY - 2014
DO - 10.1587/transele.E97.C.592
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E97-C
IS - 6
JA - IEICE TRANSACTIONS on Electronics
Y1 - June 2014
AB - Break arcs are generated in a DC48V and 12A resistive circuit. Silver electrical contacts are separated at constant opening speed. The cathode contact surface is irradiated by a blue LED. The center wavelength of the emission of the LED is 470nm. There is no spectral line of the light emitted from the break arcs. Only the images of contact surface are observed by a high-speed camera and an optical band pass filter. Another high-speed camera observes only the images of the break arc. Time evolutions of the cathode surface morphology being eroded by the break arcs and the motion of the break arcs are observed with these cameras, simultaneously. The images of the cathode surface are investigated by the image analysis technique. The results show that the moments when the expanded regions on the cathode surface are formed during the occurrence of the break arcs. In addition, it is shown that the expanded regions are not contacted directly to the cathode roots of the break arcs.
ER -