Electrodynamic Problems in the Busbars of Electrotechnical Equipment of Autonomous Systems

Resumo

This article is devoted to an assessment of the level of electrodynamic forces in the busbars of electrotechnical equipment, this being the most important problem when providing the stability of energetic systems during short circuits. We have analyzed the electrodynamic forces arising between rectilinear conductors at various arrangements. The difference in the approaches to determine these forces by direct and energy methods has been shown. The energy method is reduced to the differentiation of the mutual-inductance coefficient over the corresponding coordinate. The direct method eliminates the appearance of lateral forces, while the energy method allows one to reveal their physical essence. We present the calculation of the electrodynamic interaction forces using an example of the characteristic configuration of busbars in the case of double shorting on the housing or ground.