POWER CABLE LINE Russian patent published in 2009 - IPC H01B9/00 H01B12/02 H02J3/02 

FIELD: electrical engineering.

SUBSTANCE: in a line for transmitting and distributing direct current a power cable line is provided, which makes easier supply of electricity to various devices used for operation of that line. The power cable line comprises power cables (1lg, 1r, 1p, 1m, 1n), which transmit and distribute direct current, a unit (2) for superimposing an alternating current component on these cables, and an electricity tap off unit (3), meant for tapping off power of the superimposed alternating current component from this cable. Unit (2) superimposes the alternating current component on the power cable, and electrical energy of the alternating current is transmitted together with electrical energy of direct current on the power cable. The tap off unit (3), located at a certain section of the cable, taps off this alternating current component and transmits it to different devices.

EFFECT: invention allows for designing a cable, which makes easier tapping off electrical energy during transmission of direct current.

4 cl, 13 dwg