ELECTRIC TRANSFORMER WITH CONSTANT FLOW COMPENSATION Russian patent published in 2012 - IPC H01F27/34 

FIELD: electricity.

SUBSTANCE: electric transformer (20) with constant flow compensation has soft magnetic core (4) on which compensating winding (3) is arranged additionally to primary and secondary windings (1, 2). That winding is connected to current control device (12, 13) which according to control signal (14, 15) which represents measuring device (30) of magnetic field from measurement of magnetic flow connected to current in primary or secondary windings leads compensating current (16, 17) to compensation winding (3) so that its action in core (4) is directed opposite to magnetic constant flow (5).

EFFECT: easier reduction of core heating and emission of interference determined with constant magnetic flow in core.

9 cl, 8 dwg