DEVICE FOR LIMITING OR INTERRUPTING CURRENT IN POWER TRANSMISSION LINE AND METHOD OF CONTROLLING SAID DEVICE Russian patent published in 2017 - IPC H01H33/00 

FIELD: electrical engineering.

SUBSTANCE: invention relates to a device for limiting or interrupting current in a power transmission line, as well as to a method of controlling such a device. Device includes branch (29) of current interruption and a bridge branch. Bridge branch includes two arms of a bridge, which are formed by four identical branches of current switching. Every two of the four current switching branches are connected in series, and formed as the result two arms of the bridge are connected in parallel. Both arms of the bridge are connected in parallel to a branch of current switching, and midpoints of the two bridge arms are separately connected to two ends of the line. Each branch of current switching contains at least one high-speed isolating switch (6) and at least one bidirectional power semiconductor switch (10), which are connected in series. Said device can interrupt currents in two directions.

EFFECT: technical result is providing high rate of opening and low losses.

7 cl, 4 dwg