The authors present the results of a project whose objective was the development of a numerical method for the design and optimisation of circuit breakers. The research concentrated on modelling the arc-gas interactions in a SF/sub 6/ auto-expansion circuit breaker. In the chosen modelling, the arc core and the surrounding gas are considered as a continuous medium governed by a single set of equations. The adopted numerical method is a 'finite volume' one. It is adapted to take into account compressibility and real gas properties, Joule losses in the arc, radiative exchanges and energy transport by convection and conduction.
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机译:作者提出了一个项目的结果,其目的是开发开发断路器的设计和优化的数值方法。 该研究集中在SF / SUB 6 /自动膨胀断路器中建模弧气相制。 在所选择的建模中,弧形芯和周围气体被认为是由一组方程控制的连续介质。 采用的数值方法是“有限卷”。 它适用于考虑压缩性和真实的气体性质,通过对流和传导,弧形,辐射交换和能量运输中的焦耳损失。
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