講演抄録/キーワード |
講演名 |
2012-11-30 11:05
Study on arc behaviors at opening a 270V resistive load by bridge-type contacts under magnetic field Xue Zhou・Xinglei Cui・○Zhikai Zhou・Guofu Zhai(Harbin Inst. of Tech.) EMD2012-67 エレソ技報アーカイブへのリンク:EMD2012-67 |
抄録 |
(和) |
Bridge-type contacts are mainly used in high voltage direct current contactors for their performance of arc extinguishment, break capacity. It is also easy to add magnetic field to them to blow the arc. Experiment study on the arc behaviors were carried out when a copper bridge-type contact opening a 270V/200A resistive current in the air. The influences of shape of the movable contact, the opening speed and the magnetic flux density on the key behaviors, such as the arc duration, the arc reignition and the stability of arcing process, were investigated by using a oscilloscope and a high-speed camera. It was revealed that a uniform magnetic field with proper density could extinguish the arc stably and could reduce the arc re-ignition. |
(英) |
Bridge-type contacts are mainly used in high voltage direct current contactors for their performance of arc extinguishment, break capacity. It is also easy to add magnetic field to them to blow the arc. Experiment study on the arc behaviors were carried out when a copper bridge-type contact opening a 270V/200A resistive current in the air. The influences of shape of the movable contact, the opening speed and the magnetic flux density on the key behaviors, such as the arc duration, the arc reignition and the stability of arcing process, were investigated by using a oscilloscope and a high-speed camera. It was revealed that a uniform magnetic field with proper density could extinguish the arc stably and could reduce the arc re-ignition. |
キーワード |
(和) |
Bridge-type contacts / dc arcs / Copper contacts / Arc behaviors / / / / |
(英) |
Bridge-type contacts / dc arcs / Copper contacts / Arc behaviors / / / / |
文献情報 |
信学技報, vol. 112, no. 332, EMD2012-67, pp. 19-24, 2012年11月. |
資料番号 |
EMD2012-67 |
発行日 |
2012-11-23 (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 |
EMD2012-67 エレソ技報アーカイブへのリンク:EMD2012-67 |