Investigation on the Thermal Process of Anode in Vacuum Arc

Zongqian SHI  Shenli JIA  Lijun WANG  Hong DONG  

IEICE TRANSACTIONS on Electronics   Vol.E89-C   No.8   pp.1206-1209
Publication Date: 2006/08/01
Online ISSN: 1745-1353
DOI: 10.1093/ietele/e89-c.8.1206
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Recent Development of Electromechanical Devices (Selected Papers from IS-EMD2005))
Category: Contactors & Circuit Breakers
vacuum arc,  anode,  melt,  evaporation,  finite element analysis,  

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Anode activity in vacuum arc plays a very important role in both characteristics of vacuum arc and the interruption capacity of vacuum interrupters. In this paper, the transient thermal processes of anode in vacuum arc in a half of arc current cycle with frequency of 50 Hz are simulated by finite element analysis software, ANSYS. Some important phenomena of anode, e.g., the melt and solidification, mass loss due to evaporation, are investigated.