FIELD: electrical engineering. SUBSTANCE: reactor block is composed by induction coil winding with air core and one ring winding made like metal strip mounted round winding coil with separation in radial direction and serves as resistive induction coupling. Strip metal resistivity and crossection are choosing so to have desirable resistance fore sufficient power dissipation provided quality factor lowering at desirable range of frequency which is more then electric power net one. EFFECT: more simple construction, better operating. 9 cl, 6 dwg
