FIELD: electrical engineering. SUBSTANCE: invention can be used for contactless electric coupling of mobile and immobile parts of electric machines and gears. Capacitor is charged with electric energy, this energy is accumulated on its mobile and immobile plates resonance conditions are created for operation of oscillatory circuit incorporating inductance, windings of electric machine and capacitance of capacitor plates of rotor type. This accumulated energy is transferred from mobile part of electric machine to immobile one or vice versa, from stator to winding of rotor with change of direction of emf. EFFECT: enhanced operational efficiency of electric machines and gears. 3 dwg
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