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Analysis of electron and heavy particle velocity distribution under consideration of nonthermal equilibrium arc
Electronics and Communications in Japan ( IF 0.3 ) Pub Date : 2019-10-01 , DOI: 10.1002/ecj.12214
Yusuke Nemoto 1 , Soshi Iwata 1 , Yoshifumi Maeda 1 , Toru Iwao 1
Affiliation  

The circuit breaker is required to interrupt the current in order to prevent the spreading fault current. The reignition caused by the remaining high‐temperature gas in the opening of circuit breaker occurs. As this countermeasure, the external magnetic field application and blast gas to arc are used in order to decrease the arc temperature. It has been reported that the nonthermal equilibrium of arc is remarkable near the electrode and post arc. However, few reports have the analysis of separating electron and heavy particle momentums under consideration of the nonthermal equilibrium because the physical phenomena are complicated in the nonthermal equilibrium. In this paper, the electron and heavy particle velocity distribution under consideration of nonthermal equilibrium arc were analyzed. As a result, it is possible to quantify the electron and heavy particle velocity. The electron velocity distribution is dominant to the electric potential distribution. On the other hand, the heavy particle velocity distribution is dominant to the pressure gradient. Therefore, the difference between the electron and heavy particle velocity distribution was elucidated.

中文翻译:

考虑非热平衡电弧的电子和重粒子速度分布分析

为了防止故障电流扩散,需要断路器来中断电流。发生由断路器分闸中剩余的高温气体引起的重燃。作为该对策,为了降低电弧温度,使用外部磁场施加和向电弧喷射高炉气体。据报道,电弧的非热平衡在电极附近和电弧后很明显。但是,由于非热平衡中的物理现象比较复杂,因此很少有报道考虑非热平衡来分离电子和重粒子动量。本文分析了考虑非热平衡电弧时电子和重粒子的速度分布。结果是,可以量化电子和重粒子的速度。电子速度分布占主导地位。另一方面,重粒子速度分布是压力梯度的主导。因此,阐明了电子和重粒子速度分布之间的差异。
更新日期:2019-10-01
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