| 摘要 |
equipment transforming and transferring electric power over long and superlong distances. SUBSTANCE: AC power network includes three three-phase line windings 1-3 and 4-6 of three-phase transformers at sending and receiving substations. Their phase leads-out are so connected that each phase of line winding of sending substation is linked via disconnectors 13 and 15 by wires 16 of power line to like phases of various line windings of receiving substation. In case of star connection of three-phase windings zero point of one of line three- phase windings in it at sending and receiving substations is grounded and switches 14 are placed in series with circuit of these windings, for instance 2 and 5. EFFECT: diminished asymmetry of currents in wires of split phases, enhanced efficiency, reliability and decreased wave length of power transmission. 2 cl, 3 dwg |
