FIELD: electrical engineering. SUBSTANCE: technical result of invention consisting in simplification of test circuit and reduction of consumption of electric energy is achieved by connection of DC generator in parallel to DC source and to input of static frequency and voltage converter in facility testing AC brushless electric machines. Winding of independent excitation of DC generator is connected to output of excitation rectifier and its control unit is connected to output of algebraic adder of voltages. Inputs of the latter are connected to voltage pickup of DC source and to voltage pickup of DC generator. EFFECT: simplified test circuit and reduced consumption of electric energy. 1 dwg
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