TRANSFORMER WITH THREE-PHASE, CIRCULAR POWER AND CIRCULAR INFORMATION WINDINGS Russian patent published in 2015 - IPC H01F30/14 H02K1/16 

FIELD: electricity.

SUBSTANCE: transformer is formed by four parts: two internal identical magnetic conductors with the alternating teeth of various levels from a half up to the full height of a groove both parts of which are shifted from with reference to other by one groove. Two external magnetic conductors contain only the truncated teeth with the height up to a half of the groove height, and their external parts are also shifted with reference to each other by one groove. When forming the common magnetic conductor the packages of external magnetic conductors overlapping the packages of the internal yoke with shift by one groove or counterclockwise so that the truncated teeth of two internal and two external magnetic conductors coincide, forming the common whole teeth with vanishingly small unregulated air gaps and formed together with the whole teeth belonging only to internal magnetic conductors, half-closed grooves to the full height of coil groups.

EFFECT: improvement of efficiency, power factor, accuracy and reliability of regulation of output voltage, suppression of the highest spatial harmonic components of the magnetic field and tooth harmonics, simplification of synchronisation of the control system, avoidance of additional phase shifts.

4 dwg