Computations of electrical parameters of untransposed overhead lines

This paper presents different computation techniques of electrical parameters of an untransposed multiconductor overhead transmission lines. The advances of those methods are that they can be used on any tower structure operated on any voltage level with great precision. Using matrix calculus, no such serious approximations as in common transposed line parameters are used. There is shown how to progress during the computations, step by step. Principles in this paper are known for a long time, but are not used as much because of the higher level of computation techniques. But it is shown, that the electrical parameters obtained by those methods are very useful for the transmission line asymmetry studies.