Silver electrical contacts were separated at constant opening speed in a 200V-500VDC/10A resistive circuit. Break arcs were extinguished by magnetic blowing-out with transverse magnetic field of a permanent magnet. The permanent magnet was appropriately located to simplify the lengthened shape of the break arcs. Magnetic flux density of the transverse magnetic field was varied from 20 to 140mT. Images of the break arcs were observed from the horizontal and vertical directions using two high speed cameras simultaneously. Arc length just before extinction was analyzed from the observed images. It was shown that shapes of the break arcs were simple enough to trace the most part of paths of the break arcs for all experimental conditions owing to simplification of the shapes of the break arcs by appropriate arrangement of the magnet. The arc length increased with increasing supply voltage and decreased with increasing magnetic flux density. These results will be discussed in the view points of arc lengthening time and arc lengthening velocity.
Yuta KANEKO
Shizuoka University
Junya SEKIKAWA
Shizuoka University
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Yuta KANEKO, Junya SEKIKAWA, "Arc Length Just Before Extinction of Break Arcs Magnetically Blown-Out by an Appropriately Placed Permanent Magnet in a 200V-500VDC/10A Resistive Circuit" in IEICE TRANSACTIONS on Electronics,
vol. E103-C, no. 12, pp. 698-704, December 2020, doi: 10.1587/transele.2020EMP0001.
Abstract: Silver electrical contacts were separated at constant opening speed in a 200V-500VDC/10A resistive circuit. Break arcs were extinguished by magnetic blowing-out with transverse magnetic field of a permanent magnet. The permanent magnet was appropriately located to simplify the lengthened shape of the break arcs. Magnetic flux density of the transverse magnetic field was varied from 20 to 140mT. Images of the break arcs were observed from the horizontal and vertical directions using two high speed cameras simultaneously. Arc length just before extinction was analyzed from the observed images. It was shown that shapes of the break arcs were simple enough to trace the most part of paths of the break arcs for all experimental conditions owing to simplification of the shapes of the break arcs by appropriate arrangement of the magnet. The arc length increased with increasing supply voltage and decreased with increasing magnetic flux density. These results will be discussed in the view points of arc lengthening time and arc lengthening velocity.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.2020EMP0001/_p
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@ARTICLE{e103-c_12_698,
author={Yuta KANEKO, Junya SEKIKAWA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Arc Length Just Before Extinction of Break Arcs Magnetically Blown-Out by an Appropriately Placed Permanent Magnet in a 200V-500VDC/10A Resistive Circuit},
year={2020},
volume={E103-C},
number={12},
pages={698-704},
abstract={Silver electrical contacts were separated at constant opening speed in a 200V-500VDC/10A resistive circuit. Break arcs were extinguished by magnetic blowing-out with transverse magnetic field of a permanent magnet. The permanent magnet was appropriately located to simplify the lengthened shape of the break arcs. Magnetic flux density of the transverse magnetic field was varied from 20 to 140mT. Images of the break arcs were observed from the horizontal and vertical directions using two high speed cameras simultaneously. Arc length just before extinction was analyzed from the observed images. It was shown that shapes of the break arcs were simple enough to trace the most part of paths of the break arcs for all experimental conditions owing to simplification of the shapes of the break arcs by appropriate arrangement of the magnet. The arc length increased with increasing supply voltage and decreased with increasing magnetic flux density. These results will be discussed in the view points of arc lengthening time and arc lengthening velocity.},
keywords={},
doi={10.1587/transele.2020EMP0001},
ISSN={1745-1353},
month={December},}
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TY - JOUR
TI - Arc Length Just Before Extinction of Break Arcs Magnetically Blown-Out by an Appropriately Placed Permanent Magnet in a 200V-500VDC/10A Resistive Circuit
T2 - IEICE TRANSACTIONS on Electronics
SP - 698
EP - 704
AU - Yuta KANEKO
AU - Junya SEKIKAWA
PY - 2020
DO - 10.1587/transele.2020EMP0001
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E103-C
IS - 12
JA - IEICE TRANSACTIONS on Electronics
Y1 - December 2020
AB - Silver electrical contacts were separated at constant opening speed in a 200V-500VDC/10A resistive circuit. Break arcs were extinguished by magnetic blowing-out with transverse magnetic field of a permanent magnet. The permanent magnet was appropriately located to simplify the lengthened shape of the break arcs. Magnetic flux density of the transverse magnetic field was varied from 20 to 140mT. Images of the break arcs were observed from the horizontal and vertical directions using two high speed cameras simultaneously. Arc length just before extinction was analyzed from the observed images. It was shown that shapes of the break arcs were simple enough to trace the most part of paths of the break arcs for all experimental conditions owing to simplification of the shapes of the break arcs by appropriate arrangement of the magnet. The arc length increased with increasing supply voltage and decreased with increasing magnetic flux density. These results will be discussed in the view points of arc lengthening time and arc lengthening velocity.
ER -