FIELD: electrical engineering.
SUBSTANCE: in an open magnetic conductor with 3-phase AC winding when approaching a wave of maximum sum of magnetic fields of 3-phase winding to edge of magnetic conductor, in which phases are shifted along inductor between each other by 120 degrees, and windings of 3-phase voltage of power supply are displaced to each other by 120 degrees, eddy currents are generated, which are converted to heat, which sharply reduces efficiency factor of electric installation and requires additional cooling measures. For the time of exceeding the amplitude of the total maximum of the magnetic fields of 3 phases over the limitation threshold through the electric circuit by controlling with the help of magnetic sensors in phase of moving of periodically moving magnetic flow, three-phase windings are opened and closed with electronic double-sided keys.
EFFECT: technical result consists in improvement of efficiency factor.
2 cl, 3 dwg
