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Research on effect of magnetic field of phase to phase in high current vacuum circuit breaker

机译:大电流真空断路器中相间磁场的影响研究

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摘要

Based on the structure of a vacuum circuit breaker (VCB), a mathematical model of the three-dimensional magnetic field of a three-phase VCB is established using the finite element method (FEM). Through the numerical simulation of the magnetic field in whole variation cycle of 3 phase current in the course of breaking, the effects of different phase displacements on the magnetic field are obtained. The mutual influence of the magnetic field between phase to phase is clearly reflected. Moreover, for solving the above problems, the corresponding magnetic field distributions with different magnetic shield devices are also obtained.
机译:基于真空断路器(VCB)的结构,使用有限元方法(FEM)建立了三相VCB三维磁场的数学模型。通过对三相电流在断裂过程中整个变化周期内磁场的数值模拟,得到了不同相位移对磁场的影响。清楚地反映了相间磁场的相互影响。此外,为了解决上述问题,还获得了具有不同磁屏蔽装置的相应磁场分布。

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