Title :
Numerical analysis of flow field and the dynamic properties of arc in the interrupting chamber of an SF6 puffer circuit breaker
Author :
Li, Xiao-Bin ; Wang, Qi-Ping ; Li, Yi-Bin ; Yang, Yong
Author_Institution :
Sch. of Electr. Eng., Xi´´an Jiaotong Univ., China
fDate :
10/1/1997 12:00:00 AM
Abstract :
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
Keywords :
Navier-Stokes equations; arcs (electric); compressible flow; gas blast circuit breakers; interrupters; numerical analysis; plasma magnetohydrodynamics; 2D axisymmetrical magnetohydrodynamic mathematical model; 2D flow-arc model; SF6; SF6 puffer circuit breaker; arc; arc clogging; compressible gas flow; current zero period; dynamic properties; flow field; hot-gas backflow; interrupting chamber; modified Navier-Stokes equations; nozzle arc; numerical analysis; thermal recovery behavior; Circuit breakers; Fluid flow; Heating; Lorentz covariance; Magnetic properties; Maxwell equations; Numerical analysis; Pistons; Sulfur hexafluoride; Thermal conductivity;
Journal_Title :
Plasma Science, IEEE Transactions on
