METHOD FOR BALANCING OF PHASE CURRENTS OF THREE-PHASE FOUR-WIRE LINE AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2016 - IPC H02J3/26 

FIELD: electrical engineering.

SUBSTANCE: field of application: electrical engineering. According to the method phase voltage signals, current signals of line zero wire and current signals of load zero wire are received, then the current connection of phase wires of load to phase wires of line are changed, as one of the three technically available ABC connections, CAB and BCA, onto one of the other two connections. For the actual and two other connections of phase conductor of single-phase load to phase wires of line or the other two connections of phase conductors of three-phase load to phase wires of line with the same sequence of alternation of phases, as the actual connection, value of asymmetry of phase currents of line with its feed side is determined and the next selected load connection is the load connection with the least value of asymmetry.

EFFECT: technical result - reduction of unbalance of phase current of line.

10 cl, 4 dwg