Numerical research on switching arc of circuit breaker
This paper focuses on the numerical investigation of arc plasma behaviour in arc chamber of direct current (DC) circuit breaker. A 3-D simulation model of arc chamber including ferromagnetic splitter plates is built and calculated, which is based on magnetohydrodynamics theory. Coupled electromagnetic and gas dynamic interactions are considered as usual, and 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. Therefore, the arc-splitting process with ferromagnetic plates can be included. To reduce the time consuming, the arc simulation results of arc commutation process from contact to arc runner is taken as the calculation initial condition in the model. Arc motion is described in detail by the temperature distribution. Moreover, the simulation result is compared with experimental result, which shows good agreement.
Mingzhe Rong Yi Wu Fei Yang Chunping Niu Ruiguang Ma
State Key Lab of Electrical Insulation and Power Equipment, Xian Jiaotong University, China
国际会议
西安
英文
488-491
2011-10-23（万方平台首次上网日期，不代表论文的发表时间）