Modelo práctico del transformador de distribución trifásico para análisis de transitorios de baja frecuencia: Identificación de parámetros

  • Celis-Montero J
  • Castro-Aranda F
  • Martinez-Velasco J
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Abstract

In order to analyse transient phenomenon originated during electrical transformers operation, models implemented in simulation tools EMTP-type can be used. Some of these models need the specification of parameters that can be difficult to obtain by testing, such as the saturation characteristic of the legs and the yokes, due to the predetermined interconnection of the windings or might be property of transformer's manufacturers, such as the relative dimensions of the core. This paper proposes a three-phase three-legged transformer model that can be used for analysis of low-frequency transients and whose parameters can be determined using conventional laboratory tests. The model has been implemented in an EMTP-type program and validated by comparing simulation results with real measurements obtained from laboratory tests.

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Celis-Montero, J. E., Castro-Aranda, F., & Martinez-Velasco, J. A. (2012). Modelo práctico del transformador de distribución trifásico para análisis de transitorios de baja frecuencia: Identificación de parámetros. Ingeniare. Revista Chilena de Ingeniería, 20(3), 293–303. https://doi.org/10.4067/s0718-33052012000300003

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