Analysis of three dimensional electric field in high voltage SF_6 circuit breaker based on finite element method
Abstract：In order to satisfy the requirements of high accuracy and efficiency in three dimensional electric field numerical calculation for three dimensional electric field inverse problem of multimedia and complex structure,three dimensional electric field computing platform was developed based on the finite element method（FEM） and tetrahedron subdivision.Three dimensional electric field in the arc quenching chamber of high voltage SF6 circuit breaker was computed accurately using the computing platform,and the optimization for the structure of movable contact was carried out based on the electric field distribution in the arc quenching chamber.The distribution of equipotential line and electric field intensity inside high voltage SF6 circuit breaker as well as the maximum electric intensity value under different contact structures were obtained.The calculation results prove that this computing platform can be used to solve the inverse problem of three dimensional electric field.
Keywords：inverse problem of three dimensional electric fieldfinite element methodSF6 circuit breakerthree dimensional electric fieldnumerical calculationarc quenching chamberhigh voltage insulationelectric field optimizaion
Publication Date：2011-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)