講演抄録/キーワード |
講演名 |
2015-11-06 09:55
Observation of Break Arcs Rotated by Radial Magnetic Field in a 48VDC Resistive Circuit using two high-speed cameras ○Jun Matsuoka・Junya Sekikawa(Shizuoka Univ.) EMD2015-75 エレソ技報アーカイブへのリンク:EMD2015-75 |
抄録 |
(和) |
Break arcs are rotated with the radial magnetic field formed by a magnet embedded in a fixed cathode contact. The break arcs are generated in a 48VDC resistive circuit. The circuit current when the contacts are closed is 10A. The depth of the magnet varies from 1mm to 4mm to change the strength of the radial magnetic field for rotating break arcs. Images of break arcs are taken by two high-speed cameras from two directions and the rotational motion of the break arcs is observed. The rotational period of rotational motion of the break arcs is investigated. The following results are obtained. The break arcs rotate clockwise on the cathode surface seen from anode side. This rotation direction conforms to the direction of the Lorentz force that affects to the break arcs with the radial magnetic field. The rotational period gradually decreases during break operation. When the depth of magnet is larger, the rotational period becomes longer. |
(英) |
Break arcs are rotated with the radial magnetic field formed by a magnet embedded in a fixed cathode contact. The break arcs are generated in a 48VDC resistive circuit. The circuit current when the contacts are closed is 10A. The depth of the magnet varies from 1mm to 4mm to change the strength of the radial magnetic field for rotating break arcs. Images of break arcs are taken by two high-speed cameras from two directions and the rotational motion of the break arcs is observed. The rotational period of rotational motion of the break arcs is investigated. The following results are obtained. The break arcs rotate clockwise on the cathode surface seen from anode side. This rotation direction conforms to the direction of the Lorentz force that affects to the break arcs with the radial magnetic field. The rotational period gradually decreases during break operation. When the depth of magnet is larger, the rotational period becomes longer. |
キーワード |
(和) |
/ / / / / / / |
(英) |
Arc discharge / Contact erosion / High-speed camera / / / / / |
文献情報 |
信学技報, vol. 115, no. 291, EMD2015-75, pp. 47-52, 2015年11月. |
資料番号 |
EMD2015-75 |
発行日 |
2015-10-29 (EMD) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
PDFダウンロード |
EMD2015-75 エレソ技報アーカイブへのリンク:EMD2015-75 |