Experimental Study Toward the Harmonic Impedance Determination of a Three-phase Transformer in a Laboratory Environment
Rafael Gil Nascimento1; Arthur Costa de Souza1; Ivan Nunes Santos1; Celso Rosa de Azevedo Júnior1
1 Universidade Federal de Uberlândia
Resumo
The massive increment of non-linear loads, coming from modern power electronics, corroborates a considerable insertion of harmonic currents in the electric network. As a result, the power quality is directly affected and can provide abnormal voltage and current waveform that result in operational failures of certain devices or systems. Therefore, it is essential to study the impact that harmonics of voltage and current cause on the various constituent elements of the network and its propagation. Thus, this work aims at the experimental analysis of harmonic impedances in power transformers subjected to distorted operation conditions.
Palavras-chave: transformers; harmonic distortions; harmonic impedance; power quality