抄録
This paper describes the theoretical calculation and experimental investigation of gas flow in the arc extinguish tube of the model switch. The theoretical calculation discussed here is the second process of the four processes in current interruption. Considering a results of experimental observation on the mass consumption of the tubes to arc energy and the pressure difference of the tube and pressure chambers, the theoretical equations were deduced for the gas flow in the tube during the current interruption process. Using these theoretical equations, the pressure in pressure chamber was calculated, and compared with the experimental results. In spite of adopting many assumptions in the derivation of the theoretical equations, the calculated and experimental values were mostly similar.
