FIELD: electricity.
SUBSTANCE: apparatus has bidirectional high-voltage thyristor valves (1, 2, 3) connected in series to reactive elements (chokes or capacitors) (4, 5, 6). Switching from the reactive power compensation mode to the ice cover melting mode is carried out with two switches (7, 8). To this end, points of connection of the reactive elements (4, 5, 6) and thyristor valves (1, 2, 3) are connected to a three-phase mains supply A, B, C; the free terminals of said valves (1, 2, 3) are connected through contacts of the first switch (7) on a delta circuit to free terminals of the reactive elements (4, 5, 6), and through contacts of the second switch (8) to wires of the overhead line for melting ice cover.
EFFECT: minimising the number of switches needed to switch from the compensation mode to the controlled ice cover melting mode and back.
2 dwg
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