Non - contact selection of power from eleclric transmission lines

Power supply devices for monitoring systems, light fencing, relay protection and emergency automatics of high voltage air electric networks, in particular, a capacitive power take-off from a high-voltage three-phase power transmission line placed a safe distance along the line wires, and an antenna connected to an electromagnetic device are considered. The results of the analysis show a sufficiently high efficiency of the considered power supply system in comparison with other methods of power takeoff from high-voltage transmission lines.