| 発表年月日 | 2017/09/01 |
|---|---|
| 発表テーマ | Behavior Analysis of Arc Current Using Copper Cathode and Cathode Spot Theory for Instability Phenomenon in Vacuum Arc |
| 会議名 | 4th International Conference on Applied Electrical and Mechanical Engineering 2017 At:Nongkhai, Thailand |
| 主催者 | King Mongkut's University of Technology Thonburi |
| 開催地名 | Royal Nakhara Hotel and Convention Centre, Nongkhai, Thailand |
| 学会区分 | 国際学会 |
| 発表形式 | 口頭（一般） |
| 単独共同区分 | 共同 |
| 国際共著 | 国際共著 |
| 国名 | タイ王国|タイ |
| 開催期間 | 2017/08/31 ～ 2017/09/02 |
| 発表者・共同発表者 | Noritsugu Kamata, Narong Mungkung, Somchai Arunrungrusmi, Pakpoom Chansri,Toshifumi Yuji and Hiroyuki Kinoshita |
| 概要 | In vacuum breakers, the instability phenomenon occurs in the arc current at a current value before current cutting is generated. This arc phenomenon sometimes causes a current cutting due to this arc phenomenon. Therefore, it is the purpose of this report to capture the instability phenomenon due to vacuum arc discharge in the small-current arc region when cupper electrodes are used. A cathode spot model where a collision less sheath and collision plasma was connected to each other was constructed. A unique solution to the arc current (independent variable of discharge phenomenon) was obtained by simulation of dichotomy. As a result, it was supposed that the current that gives a real solution has a lower limit, the electrons that back-diffused from the collision plasma in cathode ion sheath exceed the ion under 19 A and the cathode spot that requires the existence of the ion sheath as a necessary antecedent or precondition does not exist anymore. |
| researchmap用URL | https://researchmap.jp/tcr11nori |