Patent ID: 7791215
Filing Date: 2010-09-07
Classification: H04B,Y10S

Abstract:
1. A system for transmitting a carrier current having two polarities on a high voltage electric power transmission line, in which the power transmission line comprises multiple phases for an ac transmission line, or multiple poles for a dc transmission line, and in which at least one phase, or one pole, comprises at least three spaced, separate conductors connected in parallel that carry the power being transmitted by that phase or pole, the spaced, separate conductors being arranged in two groups, a first, outer group comprising at least two spaced conductors that lie generally along an outer perimeter, and a second, inner group comprising one or more conductors located within the perimeter, the system comprising: a carrier current transmitter for transmitting both polarities of the carrier current; circuitry for electrically connecting one polarity to the first group of conductors within one phase or one pole; and circuitry for electrically connecting the second polarity to the second group of conductors of the same phase or pole.