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Numerical analysis of flow field and the dynamic properties of arc in the interrupting chamber of an SF6 puffer circuit breaker

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4 Author(s)
Xiao-Bin Li ; Sch. of Electr. Eng., Xi''an Jiaotong Univ., China ; Qi-Ping Wang ; Yi-Bin Li ; Yong Yang

The two-dimensional (2-D) axisymmetrical magnetohydrodynamic mathematical model of a nozzle arc is based on the modified Navier-Stokes equations of compressible gas flow. This 2-D flow-arc model Is solved in conjunction with the opening characteristics of the driving mechanism. Numerical results are presented and attention is paid to the arc clogging and hot-gas backflow. Thermal recovery behavior during current zero period is also discussed

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Plasma Science, IEEE Transactions on  (Volume:25 ,  Issue: 5 )