講演抄録/キーワード |
講演名 |
2008-11-16 14:40
Investigation on Arc Characteristics under Axial and Transverse Magnetic Fields Guofu Zhai・Xue Zhou・○Wenying Yang(Harbin Inst. of Uech.) EMD2008-99 エレソ技報アーカイブへのリンク:EMD2008-99 |
抄録 |
(和) |
Arc characteristics are investigated when the arc is driven by external axial and transverse magnetic field. A high speed camera is adopted to take photographs of the arc, and an oscillograph is used to record arc voltages and currents. Experimental circuit is 28V/5A resistive circuit. Contact material is Ag/CdO. The circuit is opened by the contacts at five various velocities. It is found out that arc duration is shortened more markedly with the increment of the magnetic flux density, and the shortening ratio of arc duration decreases with the increment of the opening velocity. Experiments also show that both of the two types of magnetic fields can accelerate the motion of the arc root, and the magnetic field has influence only on the arc whose length is longer than a critical value. It is also revealed by the arc photographs that the mean velocity of the arc root increases with the increment of the axial magnetic field, while it decreases as the transverse magnetic field increases. |
(英) |
Arc characteristics are investigated when the arc is driven by external axial and transverse magnetic field. A high speed camera is adopted to take photographs of the arc, and an oscillograph is used to record arc voltages and currents. Experimental circuit is 28V/5A resistive circuit. Contact material is Ag/CdO. The circuit is opened by the contacts at five various velocities. It is found out that arc duration is shortened more markedly with the increment of the magnetic flux density, and the shortening ratio of arc duration decreases with the increment of the opening velocity. Experiments also show that both of the two types of magnetic fields can accelerate the motion of the arc root, and the magnetic field has influence only on the arc whose length is longer than a critical value. It is also revealed by the arc photographs that the mean velocity of the arc root increases with the increment of the axial magnetic field, while it decreases as the transverse magnetic field increases. |
キーワード |
(和) |
Axial magnetic field / Transverse magnetic field / Arc characteristic / Critical arc length / / / / |
(英) |
Axial magnetic field / Transverse magnetic field / Arc characteristic / Critical arc length / / / / |
文献情報 |
信学技報, vol. 108, no. 296, EMD2008-99, pp. 137-140, 2008年11月. |
資料番号 |
EMD2008-99 |
発行日 |
2008-11-08 (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 |
EMD2008-99 エレソ技報アーカイブへのリンク:EMD2008-99 |