Transposition of medium and long transmission lines

  • Washington Colon Castillo Jurado Doctorate program Universidad Tecnica de Manabí, Faculty of Mathematical, Physical and Chemical Sciences, Portoviejo, Manabi, Ecuador
  • Miguel Castro Fernandez Ph.D. Centro de Investigaciones y Pruebas Electroenergeticas (CIPEL), Facultad de Ingenieria Electrica, Universidad Tecnologica de La Habana Jose Antonio Echeverria, Cujae, La Habana, Cuba
  • Wilber Manuel Saltos Arauz Doctor Aspiring, Universidad Tecnica de Manabi, Faculty of Mathematical, Physical and Chemical Sciences, Portoviejo, Manabi, Ecuador
  • Julio Cesar Hernandez Chilan Doctorate Program, Electrical Engineer Program Studies, Universidad Técnica de Manabi, Portoviejo, Ecuador
Keywords: line transposition, matlab, Sim Power Systems, structure geometry, transmission lines


The transmission lines must be balanced electric circuits, theoretically, it must be an equivalent circuit that takes into account the uniform distribution of the parameters along the line. When it comes to transporting energy over long distances it is necessary to consider the effect of the capacitance, since each phase has a different capacitance causing each line to introduce an imbalance to the electrical system, for this reason, it is necessary to study the transposition of the cables. In the present work, several simulations of transmission lines with and without transposition are made, and the voltage unbalance that occurs as the line is longer has been verified. The simulations have been carried out under conditions of balanced load and fixed voltage in the arrival bar. Using the Sim Power Systems tool from Matlab, it was possible to check the behavior of the parameters of the line, depending on the geometric layout of the structure and its length. By applying this software, the objective is achieved by checking the stress unbalance problems suffered by a transmission line when transposition is not made.


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How to Cite
Jurado, W. C. C., Fernandez, M. C., Arauz, W. M. S., & Chilan, J. C. H. (2019). Transposition of medium and long transmission lines. International Journal of Physical Sciences and Engineering, 3(1), 1-9.

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