The popularity of the electric energy conversion process lies, amongst other things, upon the ease with which large blocks of energy can be transmitted from a source of generation to a remote point of utilization. Overhead transmission lines, cables, bus-bars, etc., which are used to carry this electrical energy, have electromagnetic characteristics that influence and limit the electrical energy, which they are able to transport effectively. The power transfer capability limit and degree of voltage variation with load changes are generally expressed in terms of inductive reactance, shunt capacitance, series resistance, and shunt conductance.