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Validación experimental para la estimación de las pérdidas en transformadores monofásicos y carga no lineal

Authors: Frank Grau Merconchini; Orestes Hernández Areu; Eduardo López Pérez; Nelson Alexey Castro Torres;

Validación experimental para la estimación de las pérdidas en transformadores monofásicos y carga no lineal

Abstract

Cuando se emplean transformadores monofásicos con derivación central en las redes de distribución, para dar servicio a cargas no lineales, estos suelen estar cargados de forma desigual entre los extremos del devanado secundario, haciendo que circule una corriente por el neutro con un contenido armónico elevado y, que las corrientes que circulan por ambas mitades del devanado secundario, sean distintas en amplitud y forma de onda. Para determinar con mayor precisión la influencia de la distorsión armónica en las pérdidas, se propone un modelo a partir del empleo de factores de pérdidas de distorsión promedio. Este modelo, fue validado mediante un esquema que combina cargas lineales y no lineales, para distintos valores de cargabilidad del transformador, obteniéndose que la diferencia entre las pérdidas calculadas y las medidas en el laboratorio no exceden el 5 % en ninguna de las pruebas realizadas, arrojando un error absoluto medio de 2,04 W.

Keywords

TK1001-1841, Production of electric energy or power. Powerplants. Central stations, distorsión armónica, transformador monofásico, pérdidas, Electrical engineering. Electronics. Nuclear engineering, validación experimental, TK1-9971

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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