DEVICE FOR VOLTAGE CONTROL Russian patent published in 2017 - IPC H02P13/06 G05F1/14 H02J3/26 

FIELD: electricity.

SUBSTANCE: voltage control device comprises of a three-phase transformer. The primary winding of each phase of the transformer includes series-connected network and control part, wherein the first outputs of the control part are connected to the output of the network part in each phase. Thus, a common point is formed. The second outputs of the control part are connected to the first outputs of an uncontrolled reactor of each phase. The second outputs of the uncontrolled reactors of all three phases are interconnected forming the first neutral. The first outputs of thyristor keys are connected to the common connection point of the control and network parts of the first and second phases. The second outputs of the thyristor keys of the first and second phases are combined together to form the second neutral, to which the common connection point of the network and control parts of the third phase primary winding is connected.

EFFECT: simplification of design, improvement of control characteristics and increase of reliability.

3 cl, 4 dwg