Coefficient of efficiency of coupled electric power transmission lines

This article is devoted to the analysis of the dependence of the efficiency of a two-wire coupled power line on the load resistance. The analysis was carried out on the basis of the mathematical model of the line. It is shown that the regime of the coordinated load with the maximum coefficient of efficiency depends only on the wave resistance of the first mode of the wave and is practically independent of the second mode. The secondary wave resistance caused by an interconnection doesn't influence on efficiency. It is found that connected lines system has smaller sensitivity for changing of loading resistance in comparison with the line without communications. This fact shows that practical application of the connected lines transmission of electrical energy allows providing high values of efficiency in wide spectrum of changing of loading resistance.