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
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