Transmission Characteristics of Overhead Medium-Voltage Power-Line Communication Channels

This paper considers broadband signal transmission via three-phase overhead medium-voltage (MV) lines above the lossy plane ground. The established methods dealing with transmission along MV power lines are examined in terms of the end-to-end transfer function under various network configurations. The MV broadband over the power-lines transmission channel is investigated with regard to its spectral behavior, the usable bandwidth, and the end-to-end signal attenuation. It is found that the aforementioned features depend drastically on the number and type of branches existing along the end-to-end broadband over power-lines signal propagation.