CONTROLLED REACTOR WITH THREE-LEG CORE Russian patent published in 2014 - IPC H02J3/00 

FIELD: electricity.

SUBSTANCE: legs of three-leg core (1) consist of two series elements (2) and (3), and each element is divided into two parallel parts (4) and (5). The part (4) is made with a gap while the part (5) is without a gap. Phase of the power winding consists of two sections (6) while the phase of the control winding consists of two sections (7) and (8). The sections (7) and (8) cover the parts (5) without a gap. Each section (6) covers one element of the leg elements (2) or (3) completely. Sections (6) of each phase are connected in parallel, sections (7) of different phases are wye-connected and sections (8) of different phases are delta-connected. Three-phase control keys are coupled to the wye-connected sections (7) and delta-connected sections (8). The controlled keys can be made on thyristors and assembled as per wye- or delta-connection.

EFFECT: reducing level of generated harmonics without increase of installed power and delayed action of the reactor.

4 cl, 2 dwg