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

Autor: Harby Daniel Aranguren, Claudia Tovar, Juan Inampues, Jesus Lopez, Edison Soto, Horacio Torres
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: Ingeniería e Investigación, Vol 35, Iss 1Sup, Pp 28-33 (2015)
Druh dokumentu: article
ISSN: 0120-5609
2248-8723
DOI: 10.15446/ing.investig.v35n1Sup.54069
Popis: 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.
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