Analysis of arc characteristics in miniature circuit breaker
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概要
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This paper focuses on the numerical investigation of arc plasma behavior in low-voltage circuit breaker with arc splitting process included. A three-dimensional simulation model of a certain type miniature circuit breaker (MCB) product is built and calculated, which is based on magneto-hydro-dynamic (MHD) theory. Besides coupled electromagnetic and gas dynamic interactions is considered as usual, a thin layer of nonlinear electrical resistance elements is used to represent the voltage drop of plasma sheath and the formation of new arc roots. So the arc splitting process with ferromagnetic plates can be included. The arc motion is described in detail by the temperature distribution. Some interesting phenomenon are observed in the simulation, such as the arc root jumping from contact to arc runner, the arc back-commutation before splitting into series arcs by metallic plates, new arc roots formation in splitting process and finally the arc go across the splitter plates in the chamber. Moreover, the simulation result is compared with experiment, which shows good agreement.
- 社団法人電子情報通信学会の論文
- 2009-11-12
著者
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Wu Yi
Xi'an Jiaotong Univ. Xi'an Chn
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Wu Yi
State Key Lab Of Electrical Insulation And Power Equipment School Of Electrical Engineering Xi'
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RONG Mingzhe
State Key Lab of Electrical Insulation and Power Equipment, Xi'an Jiaotong University
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YANG Fei
State Key Lab of Electrical Insulation and Power Equipment, Xi'an Jiaotong University
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Wang Weizong
State Key Lab of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi'an
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Guo Jin
State Key Lab of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi'an
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Yang Fei
State Key Lab Of Electrical Insulation And Power Equipment School Of Electrical Engineering
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Wu Yi
State Key Lab Of Electrical Insulation And Power Equipment School Of Electrical Engineering
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Wu Yi
State Key Lab Of Electrical Insulating And Power Equipment Xi'an Jiaotong University
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Guo Jin
State Key Lab Of Electrical Insulation And Power Equipment School Of Electrical Engineering Xi'
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Rong Mingzhe
State Key Lab Of Electrical Insulating And Power Equipment Xi'an Jiaotong University
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Wang Weizong
State Key Lab Of Electrical Insulation And Power Equipment School Of Electrical Engineering Xi'
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