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The lumped elements equivalent circuit of space primitive object which allow forming impedance grids for 2D electrodynamics analysis system inclusive moving with relativistic velocity medium is proposed. The lumped elements equivalent circuit of space primitive object which contain moving dielectric and based on law of conservation of electric charge and Lorentz transform is make up. The lumped elements equivalent circuit of space primitive object which contain moving magnetic is composed by method of interchangeable ambivalence. The equivalent circuit of space primitive object which contain moving medium with given permittivity and permeability is constructed and based on Minkovskiy’s constitutive equations. Conservatism of obtained circuits is proved.

electrodynamics of moving medium; numerical methods; impedance grid; Minkovskiy’s equations