【摘要】 针对低压断路器灭弧室中的磁驱电弧建立了链式电弧数学模型。模型中结合激波理论研究了电弧的运动，并利用控制容积法结合能量平衡方程对电弧的径向温度分布进行了计算。结果表明，应用这一电弧数学模型可以准确的模拟电弧的开断过程，方便地计算电弧的特性参数。更多还原

【Abstract】 A chain arc model is set up for magnetic field driven arc in arc chamber of low voltage circuit breaker in the paper.In the model,the motion of arc is described by means of classic shock\|wave theory, and the radial temperature distribution of arc column is calculated by using the Control Volume Method coupled with energy balance equations.The computed results show that the model can be used to simulate motion of arc accurately and calculate characteristic parameters conveniently.更多还原