Analysis of over voltages due to atmospheric impulse in transmission systems with discontinuities, overhead transmission lines and insulated cables, using ATP

Main Article Content

Josua Oña
Luis Ruales

Abstract

This paper  shows an analysis of the overvoltages caused by atmospheric impulses in transmission systems with discontinuities, overhead transmission lines, and insulated cables using the Alternative Transients Program (ATP) software. 


The analysis is performed considering direct  lightning impact on the guard cable or transmission on tower and the direct impact on the phase conductor, when shielding failure occurs.  In order to determine voltages at the ends  of the insulated cable and analyze its potential  affectation, a test transmission system has been implemented, and Base Case has been defined; this case is formed by six transmission towers and insulated cable protected in both sides by surge arresters .


The effect of varying parameters that affect the magnitude of the voltages at both the input and the output of the insulated cable e is analyzed in order to determine the most critical situation that can influence the maximum overvoltage values in the insulated cable.  The results confirm the effect that the discontinuities between two components of an electrical system have on the voltage magnitudes that may occur in a system due to atmospheric discharges. 

Downloads

Download data is not yet available.

Article Details

How to Cite
Oña, J., & Ruales, L. (2024). Analysis of over voltages due to atmospheric impulse in transmission systems with discontinuities, overhead transmission lines and insulated cables, using ATP. Revista Técnica "energía", 20(2), PP. 1–10. https://doi.org/10.37116/revistaenergia.v20.n2.2024.597
Section
SISTEMAS ELÉCTRICOS DE POTENCIA

References

J. A. M. Velasco, Coordinación de aislamiento en redes eléctricas de alta tensión, Madrid: McGRAW-HILL/INTERAMERICANA DE ESPAÑA, S. L., 2008.

E. J. Camacho Vargas, Cálculo de sobrevoltajes por descargas atmosféricas en subestación de 500 kV utilizando el ATP (Alternative Transients Program) aplicado a la subestación El Inga (antes Pifo) de 500 kV, Quito: EPN, 2014.

K. Sailema y X. Proaño, «Análisis de sobrevoltajes a frecuencia industrial y por maniobra en líneas de transmisión a nivel de 500 kV,» Escuela Politécnica Nacional, Quito, 2010.

D. A. Tziouvaras, «Protection of High-Voltage AC Cables,» Schweitzer Engineering Laboratories, Inc., 2006.

P. X. P. Montalvo, Determinación de sobrevoltajes en el aislamiento de torres de transmisión considerando la variación aleatoria simultánea de los parámetros de las decargas atmosféricas, Quito, 2017.

J. Oña, «Análisis de los sobrevoltajes por impulso atmosférico en sistemas de transmisión con discontinuidades líneas de transmisión aéreas y cables aislados, usando ATP,» Escuela Politécnica Nacional, Quito, 2023.

A. G. Cruz, Análisis de la respuesta transitoria de Sistemas de Puesta a Tierra, Santa Clara: Universidad Central “Marta Abreu” de Las Villas, 2012.

J. A. Martinez-Velasco, Power System Transients, CRC Press, 2017.

G. A. V. Cedeño, Diseño eléctrico de la línea de transmisión San Francisco–Culebra–Shushufindi, a 230 kV, basado en una baja tasa de fallo: sobrevoltajes por descargas atmosféricas, Quito: EPN, 2021.

CIGRE 268, «Transient Voltages Affecting Long Cables,» Working Group B1.05, Abril 2005.

Similar Articles

You may also start an advanced similarity search for this article.