Published

2015-06-01

Lightning effects on distribution transformers and reliability of power distribution systems in Colombia

Efecto de los rayos sobre transformadores de distribución y confiabilidad de sistemas de distribución de energía en Colombia

DOI:

https://doi.org/10.15446/ing.investig.v35n1Sup.54069

Keywords:

Power reliability, lightning, weather reliability model, tropical zone. (en)
Confiabilidad de sistemas de distribución, rayos, modelo de confiabilidad de tiempo atmosférico, zona tropical. (es)

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Authors

  • Harby Daniel Aranguren Currently works with Keraunos SAS, Colombia.
  • Claudia Tovar Electrical Engineer, Universidad de los Andes, Venezuela.
  • Juan Inampues Keraunos SAS, Colombia.
  • Jesus Lopez Keraunos SAS, Colombia.
  • Edison Soto Keraunos SAS, Colombia.
  • Horacio Torres Special and Titular Professor at Universidad Nacional de Colombia. Scientific Adviser at Keraunos SAS.
Failure rates of rural power systems are statistically studied based on lightning parameters and a two-state weather model (normal and adverse). Lightning information is matched with geographical coordinates of 251,024 power transformers in a vast area in central Colombia. An important portion of transformers present failure rates 45 times higher than normal, and very large overhead lines, representing a high portion of the total system, present very high failure rates over 75 times higher than in normal weather conditions.

Las tasas de falla de sistemas rurales de distribución de energía en Colombia son estudiadas a partir de parámetros del rayo y un modelo de tiempo atmosférico de dos estados (normal y adverso). La información de rayos es correlacionada con la ubicación de 251,024 transformadores en una amplia zona en el centro de Colombia. Una parte importante de los transformadores presenta tasas de falla 45 veces mayor que lo normal y redes extensas de distribución muestran tasas de fallas 75 veces mayores a las esperadas en condiciones consideradas de tiempo normal.

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How to Cite

Lightning effects on distribution transformers and reliability of power distribution systems in Colombia. (2015). Ingeniería E Investigación, 35(1Sup), 28-33. https://doi.org/10.15446/ing.investig.v35n1Sup.54069

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Copyright (c) 2015 Harby Daniel Aranguren, Claudia Tovar, Juan Inampues, Jesus Lopez, Edison Soto, Horacio Torres

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