Alternative model for computing transformer tank induced losses in the time domain | Zendy

Oliveira Luiz F. | Zendy; Sadowski Nelson | Zendy; Cabral Sergio Henrique Lopes | Zendy

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Alternative model for computing transformer tank induced losses in the time domain

Author(s) -

Oliveira Luiz F.,

Sadowski Nelson,

Cabral Sergio Henrique Lopes

Publication year - 2020

Publication title -

iet electric power applications

Language(s) - English

Resource type - Journals

ISSN - 1751-8679

DOI - 10.1049/iet-epa.2020.0275

Subject(s) - transformer , computer science , time domain , control theory (sociology) , engineering , electrical engineering , voltage , artificial intelligence , control (management) , computer vision

In the performance evaluation of power transformers, the occurrence of eddy currents and their effects on the transformer tank have been widely modelled and studied for the cases of power frequency in the steady state. Nonetheless, for the cases when harmonic components are present (zero‐sequence flux) or for transient conditions (inrush or geomagnetically induced current (GIC) events) there is much to do. With this aim, this work presents the proposal in using temporal modelling for evaluating eddy currents in transformer tank walls in practical cases of sinusoidal, harmonic and transient excitations. Obtained results are compared with consolidated commercially available software based on finite elements for showing how good this proposition is.

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