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Active and Passive Electronic Components
Volume 13 (1988), Issue 1, Pages 19-31

Correlation of Switching Overvoltages Over Transposed and Untransposed Transmission Lines

Electrical Power Dept., Faculty of Engineering, Suez Canal University, Port Said, Egypt

Received 30 July 1986

Copyright © 1988 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This paper presents a computational analysis of the difference between the values of the self parameters (resistance, inductance and potential coefficient) of some typical transmission lines. The earth return effect is included. A new coefficient of unsymmetry for the untransposed transmission line parameters is proposed. The wave mode parameters as a function of the given coefficient of unsymmetry are deduced.

The balancing of the parameters of both transposed and untransposed lines is applied. The percentage error in the calculated voltage at any point of the untransposed line, if considered as transposed, is formulated.