Analysis of Rotational Motion of Break Arcs Rotated by Radial Magnetic Field in a 48VDC Resistive Circuit

Jun MATSUOKA; Junya SEKIKAWA

doi:10.1587/transele.E100.C.732

Analysis of Rotational Motion of Break Arcs Rotated by Radial Magnetic Field in a 48VDC Resistive Circuit

Jun MATSUOKA, Junya SEKIKAWA

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Break arcs are rotated with a radial magnetic field formed by a permanent magnet embedded in a fixed contact. The break arcs are generated in a 48VDC resistive circuit. The circuit current is 10A when the contacts are closed. The polarity of the fixed contact in which the magnet is embedded is changed. The rotational radius and the difference of position between the cathode and anode spots are investigated. The following results are obtained. The cathode spot is moved more easily than the anode spot by the radial magnetic field. The rotational radius of the break arcs is affected by the Lorentz force that is caused by the circumferential component of the arc current and the axial component of the magnetic field. The circumferential component of the arc current is caused by the difference of the positions of the rotating cathode and anode spots.

Publication: IEICE TRANSACTIONS on Electronics Vol.E100-C No.9 pp.732-735

Publication Date: 2017/09/01

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Online ISSN: 1745-1353

DOI: 10.1587/transele.E100.C.732

Type of Manuscript: BRIEF PAPER

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Authors

Jun MATSUOKA
Shizuoka University
Junya SEKIKAWA
Shizuoka University

Keyword

arc discharge, contact erosion, high-speed camera

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Jun MATSUOKA, Junya SEKIKAWA, "Analysis of Rotational Motion of Break Arcs Rotated by Radial Magnetic Field in a 48VDC Resistive Circuit" in IEICE TRANSACTIONS on Electronics, vol. E100-C, no. 9, pp. 732-735, September 2017, doi: 10.1587/transele.E100.C.732.
Abstract: Break arcs are rotated with a radial magnetic field formed by a permanent magnet embedded in a fixed contact. The break arcs are generated in a 48VDC resistive circuit. The circuit current is 10A when the contacts are closed. The polarity of the fixed contact in which the magnet is embedded is changed. The rotational radius and the difference of position between the cathode and anode spots are investigated. The following results are obtained. The cathode spot is moved more easily than the anode spot by the radial magnetic field. The rotational radius of the break arcs is affected by the Lorentz force that is caused by the circumferential component of the arc current and the axial component of the magnetic field. The circumferential component of the arc current is caused by the difference of the positions of the rotating cathode and anode spots.
URL: https://globals.ieice.org/en_transactions/electronics/10.1587/transele.E100.C.732/_p

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@ARTICLE{e100-c_9_732,
author={Jun MATSUOKA, Junya SEKIKAWA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Analysis of Rotational Motion of Break Arcs Rotated by Radial Magnetic Field in a 48VDC Resistive Circuit},
year={2017},
volume={E100-C},
number={9},
pages={732-735},
abstract={Break arcs are rotated with a radial magnetic field formed by a permanent magnet embedded in a fixed contact. The break arcs are generated in a 48VDC resistive circuit. The circuit current is 10A when the contacts are closed. The polarity of the fixed contact in which the magnet is embedded is changed. The rotational radius and the difference of position between the cathode and anode spots are investigated. The following results are obtained. The cathode spot is moved more easily than the anode spot by the radial magnetic field. The rotational radius of the break arcs is affected by the Lorentz force that is caused by the circumferential component of the arc current and the axial component of the magnetic field. The circumferential component of the arc current is caused by the difference of the positions of the rotating cathode and anode spots.},
keywords={},
doi={10.1587/transele.E100.C.732},
ISSN={1745-1353},
month={September},}

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TY - JOUR
TI - Analysis of Rotational Motion of Break Arcs Rotated by Radial Magnetic Field in a 48VDC Resistive Circuit
T2 - IEICE TRANSACTIONS on Electronics
SP - 732
EP - 735
AU - Jun MATSUOKA
AU - Junya SEKIKAWA
PY - 2017
DO - 10.1587/transele.E100.C.732
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E100-C
IS - 9
JA - IEICE TRANSACTIONS on Electronics
Y1 - September 2017
AB - Break arcs are rotated with a radial magnetic field formed by a permanent magnet embedded in a fixed contact. The break arcs are generated in a 48VDC resistive circuit. The circuit current is 10A when the contacts are closed. The polarity of the fixed contact in which the magnet is embedded is changed. The rotational radius and the difference of position between the cathode and anode spots are investigated. The following results are obtained. The cathode spot is moved more easily than the anode spot by the radial magnetic field. The rotational radius of the break arcs is affected by the Lorentz force that is caused by the circumferential component of the arc current and the axial component of the magnetic field. The circumferential component of the arc current is caused by the difference of the positions of the rotating cathode and anode spots.
ER -