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  1. 教育学部・大学院教育学研究科
  2. 学術雑誌掲載論文  (教育学部)

An analysis of the instability mechanism of a low - current metal vacuum arc for silver based cathode material

http://hdl.handle.net/10458/2262
http://hdl.handle.net/10458/2262
3503600d-6e54-414f-8952-ae7469d725de
名前 / ファイル ライセンス アクション
29-377.pdf 29-377.pdf (275.1 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2009-09-09
タイトル
タイトル An analysis of the instability mechanism of a low - current metal vacuum arc for silver based cathode material
言語 en
言語
言語 eng
キーワード
言語 en
主題Scheme Other
キーワード Cathode spot model, instability, thermal conductivity, silver
資源タイプ
資源タイプ journal article
著者 Mungkung, Narong

× Mungkung, Narong

WEKO 197

en Mungkung, Narong

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Tanitteerapan, Tanes

× Tanitteerapan, Tanes

WEKO 504

en Tanitteerapan, Tanes

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Arunrungrusmi, Somchai

× Arunrungrusmi, Somchai

WEKO 505

en Arunrungrusmi, Somchai

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Chaokumnerd, Weerachai

× Chaokumnerd, Weerachai

WEKO 506

en Chaokumnerd, Weerachai

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Yuji, Toshifumi

× Yuji, Toshifumi

WEKO 24
e-Rad 80418988

en Yuji, Toshifumi

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抄録
内容記述タイプ Abstract
内容記述 The purpose of this research was to investigate instability phenomena in low-current metal vacuum arc using the calculation data comparison with the experimental data. The instability phenomena are characterized by noise on the current trace prior to the actual current chopping. The instability current was investigated for various electrode materials. To study the parameters affecting the stability arc factors, the parameter scan of cathode materials and ion current fraction by numerical analysis, it was found that the critical current of the stable current is highly dependent on the thermal conductivity of the cathode material. However, the thermal conductivity effect on the instability phenomena of low-current metal vacuum arc was important for low surge switching electrode material development. Therefore, the experiment of major commercial switching electrode such as Ag-Pd is performed in this study. The arc during time and the maximum arc current were fixed to 8 ms and 100 A, respectively. The vacuum was maintained to about 1*10-6 Pa. The observed waveforms, instability current, chopping current are measured by the oscilloscope. As a result, the critical current of the stable current is inversely dependent on the thermal conductivity of the cathode material. This is very important result for the development of cathode materials for low-surge vacuum interrupters.
言語 en
書誌情報 en : WSEAS transactions on circuits and systems

巻 8, 号 6, p. 528-536, 発行日 2009-06
出版者
出版者 World Scientific and Engineering Academy and Society
言語 en
ISSN
収録物識別子タイプ ISSN
収録物識別子 11092734
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA12168894
著者版フラグ
出版タイプ VoR
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Ver.1 2023-05-15 10:30:57.702214
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Cite as

Mungkung, Narong, Tanitteerapan, Tanes, Arunrungrusmi, Somchai, Chaokumnerd, Weerachai, Yuji, Toshifumi, 2009, An analysis of the instability mechanism of a low - current metal vacuum arc for silver based cathode material: World Scientific and Engineering Academy and Society, 528–536 p.

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