| 講演名 | 2014-11-29 Comparisons on Arc Behavior and Contact Performance between Cu and Cu-Mo Alloys in a Bridge-type Contact System , |
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| 抄録(英) | Cu-Mo alloy carries forward the high conductivity and high-thermal conductivity from Cu and high hardness from Mo. It gets widely applied in electrical contact fields. In this paper, the arc characteristic and erosion characteristic of Cu-Mo contacts are studied with a bridge-type contact high speed break mechanism in DC270V/200A load condition. And in every experiment group, 1000 times break operations are carried out. During every break operation, a high speed AD card is used to collect voltage and current signal of contacts, a high speed camera is applied to record arcing process, and the temperature of contacts and arc are acquired by thermocouple and spectrometer separately. The arc characteristic is studied through the above methods. The mass and contact resistance of contacts is measured before and after every group experiment. Besides, the photograph of contact surface is taken by SEM to help analyze the erosion characteristic. The comparison between Cu-Mo contacts and Cu contacts indicates that although Cu contacts have a better electrical conductivity and thermal conductivity, Cu-Mo contacts can decrease the temperature of arc to prevent thermal breakdown, they are also harder to ablate and have a longer life. |
| キーワード(和) | |
| キーワード(英) | Cu-Mo alloy / arc characteristic / erosion characteristic |
| 資料番号 | EMD2014-76 |
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| 研究会 | EMD |
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| 開催期間 | 2014/11/22(から1日開催) |
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| 申込み研究会 | Electromechanical Devices (EMD) |
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| 本文の言語 | ENG |
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| タイトル（英） | Comparisons on Arc Behavior and Contact Performance between Cu and Cu-Mo Alloys in a Bridge-type Contact System |
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| キーワード(1)（和/英） | / Cu-Mo alloy |
| 第 1 著者 氏名（和/英） | / Mo Chen |
| 第 1 著者 所属（和/英） | School of Electrical Engineering and Automation, Harbin Inst. of Tech. |
| 発表年月日 | 2014-11-29 |
| 資料番号 | EMD2014-76 |
| 巻番号（vol） | vol.114 |
| 号番号（no） | 342 |
| ページ範囲 | pp.- |
| ページ数 | 5 |
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