摘要
在电弧等离子体处于稳态热平衡条件下,针对密封式电磁继电器,从主要的化学反应过程出发,考虑反应产生的化合物都是气态的假设,建立了描述电弧微观特性的物理模型,并以铜触头和高纯氮气氛条件为例,分别计算了纯氮气和混有一定量铜蒸气的高纯氮气工作环境下电弧的微观参数。计算结果表明,在氮气为主体的情况下,氮和铜元素的比例变化对电弧等离子体中各种粒子的数密度的影响很小。
Aiming at sealed electromagnetic relay with arc plasma at steady-state equilibrium, based on main chemical action process, a physical model was established to describe the microcosmic parameters assuming that all compounds, which were produced by the chemical action, were in gas state. For the examples of Cu contacts and highly pure N2 atmosphere, the microcosmic parameters of the arc were calculated in two different environments, pure nitrogen without and with certain copper vapor. Computed results showed that the change of the ratio between nitrogen and copper slightly influence on the number density of each species in the arc plasma while nitrogen is the principal part.
出处
《低压电器》
北大核心
2005年第10期6-10,共5页
Low Voltage Apparatus
