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

Ingeniería e Investigación

Harby Daniel Aranguren¹  Claudia Tovar²  Jesus Lopez³  Juan Inampues³  Edison Soto³  Horacio Torres⁴ 

[1] Currently works with Keraunos SAS, Colombia.;Electrical Engineer, Universidad de los Andes, Venezuela.;Keraunos SAS, Colombia.;Special and Titular Professor at Universidad Nacional de Colombia. Scientific Adviser at Keraunos SAS.;

关键词: Power reliability;    lightning;    weather reliability model;    tropical zone.;   

DOI  :  10.15446/ing.investig.v35n1Sup.54069

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown