A comparative between IEEE and EN in the transformer derating when supplying nonsinusoidal load current. A practical case

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Identificadores
URI: http://hdl.handle.net/10902/19392
ISSN: 2172-038X
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Autoría
Laso Pérez, AlbertoAutoridad Unican; Martínez Torre, RaquelAutoridad Unican; Mañana Canteli, MarioAutoridad Unican; Cervero García, David; Sáez Castro, José Antonio
Fecha
2020-06
Derechos
© The European Association for the Development of Renewable Energies, Environment and Power Quality (EA4EPQ)
Publicado en
Renewable Energy & Power Quality Journal (RE&PQJ), 18(6), 747-752
18th International Conference on Renewable Energies and Power Quality (ICREPQ’20), Granada
Editorial
The European Association for the Development of Renewable Energies, Environment and Power Quality (EA4EPQ)
Palabras clave
Distribution transformer derating
Current harmonics
Harmonic loss factor
K-factor
Nonsinusoidal load currents
Resumen/Abstract
Nowadays, power quality is a challenge for the distribution companies since the new energy policies are directed to a distributed generation system with power electronic based technologies. The reduction of distribution transformers capability when supplying nonsinusoidal load currents has a major impact within capacity reduction in distribution networks produced by technical losses. IEEE Std C57.110-2018, EN- 50464-3 and EN-50541-2 define procedures to derate transformers when supplying nonsinusoidal load currents. The aim of this paper is to compare these procedures through a real case distribution transformer that suffers problems due to high levels of current distortion.
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