Abstract:
In this paper, based on the streamer theory, using the theory of gas dynamics and electromagnetic field, the cylindrical arc model is adopted, and the flow characteristics of the heat flow in the arc chamber are simulated by computer software. Finally, a numerical calculation method for the dielectric strength recovery characteristic of the circuit breaker is proposed. This method is of great significance to the study of the performance of SF6 circuit breaker when it breaks the current.
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