Influence of bending stress on magnetic properties of 3-phase 3-leg transformers with amorphous cores

Yeong Hwa Chang; Chang Hung Hsu; Huei Lung Chu; Ching Pei Tseng

doi:10.1109/TMAG.2011.2156772

Influence of bending stress on magnetic properties of 3-phase 3-leg transformers with amorphous cores

Yeong Hwa Chang
, Chang Hung Hsu^*
, Huei Lung Chu
, Ching Pei Tseng

^*Corresponding author for this work

Department of Electrical Engineering

Chang Gung University
Fortune Electric
Institute of Nuclear Energy Research Taiwan

Research output: Contribution to journal › Journal Article › peer-review

4 Scopus citations

Abstract

This paper mainly explores the influence of bending stresses on the magnetic characteristics of three-phase amorphous transformers. Different types of core structures, including C-shaped and toroidal cores, are considered for a comparison of magnetic properties using VSM, XRD, and SEM. Among all specimens, those taken from the limb plane and the rectangular corner of a C-core have the lowest and highest coercivities, respectively. In addition, the crystalline property of Fe and α -Fe of rectangular cores is stronger than that of toroidal cores. Subsequently, the properties of magnetic loss and magnetic anisotropy are investigated. The experimental results of three-phase amorphous core transformers with a capacity of 100 kVA demonstrate that the toroidal core transformer has better magnetic characteristics in terms of lower core loss and exciting power than conventional C-core transformers.

Original language	English
Article number	6027660
Pages (from-to)	2776-2779
Number of pages	4
Journal	IEEE Transactions on Magnetics
Volume	47
Issue number	10
DOIs	https://doi.org/10.1109/TMAG.2011.2156772
State	Published - 10 2011

Keywords

Amorphous transformer
bending stress
core structure
magnetic properties

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10.1109/TMAG.2011.2156772

Cite this

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title = "Influence of bending stress on magnetic properties of 3-phase 3-leg transformers with amorphous cores",

abstract = "This paper mainly explores the influence of bending stresses on the magnetic characteristics of three-phase amorphous transformers. Different types of core structures, including C-shaped and toroidal cores, are considered for a comparison of magnetic properties using VSM, XRD, and SEM. Among all specimens, those taken from the limb plane and the rectangular corner of a C-core have the lowest and highest coercivities, respectively. In addition, the crystalline property of Fe and α -Fe of rectangular cores is stronger than that of toroidal cores. Subsequently, the properties of magnetic loss and magnetic anisotropy are investigated. The experimental results of three-phase amorphous core transformers with a capacity of 100 kVA demonstrate that the toroidal core transformer has better magnetic characteristics in terms of lower core loss and exciting power than conventional C-core transformers.",

keywords = "Amorphous transformer, bending stress, core structure, magnetic properties",

author = "Chang, \{Yeong Hwa\} and Hsu, \{Chang Hung\} and Chu, \{Huei Lung\} and Tseng, \{Ching Pei\}",

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T1 - Influence of bending stress on magnetic properties of 3-phase 3-leg transformers with amorphous cores

AU - Chang, Yeong Hwa

AU - Hsu, Chang Hung

AU - Chu, Huei Lung

AU - Tseng, Ching Pei

PY - 2011/10

Y1 - 2011/10

N2 - This paper mainly explores the influence of bending stresses on the magnetic characteristics of three-phase amorphous transformers. Different types of core structures, including C-shaped and toroidal cores, are considered for a comparison of magnetic properties using VSM, XRD, and SEM. Among all specimens, those taken from the limb plane and the rectangular corner of a C-core have the lowest and highest coercivities, respectively. In addition, the crystalline property of Fe and α -Fe of rectangular cores is stronger than that of toroidal cores. Subsequently, the properties of magnetic loss and magnetic anisotropy are investigated. The experimental results of three-phase amorphous core transformers with a capacity of 100 kVA demonstrate that the toroidal core transformer has better magnetic characteristics in terms of lower core loss and exciting power than conventional C-core transformers.

AB - This paper mainly explores the influence of bending stresses on the magnetic characteristics of three-phase amorphous transformers. Different types of core structures, including C-shaped and toroidal cores, are considered for a comparison of magnetic properties using VSM, XRD, and SEM. Among all specimens, those taken from the limb plane and the rectangular corner of a C-core have the lowest and highest coercivities, respectively. In addition, the crystalline property of Fe and α -Fe of rectangular cores is stronger than that of toroidal cores. Subsequently, the properties of magnetic loss and magnetic anisotropy are investigated. The experimental results of three-phase amorphous core transformers with a capacity of 100 kVA demonstrate that the toroidal core transformer has better magnetic characteristics in terms of lower core loss and exciting power than conventional C-core transformers.

KW - Amorphous transformer

KW - bending stress

KW - core structure

KW - magnetic properties

UR - https://www.scopus.com/pages/publications/80053554128

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DO - 10.1109/TMAG.2011.2156772

M3 - 文章

AN - SCOPUS:80053554128

SN - 0018-9464

VL - 47

SP - 2776

EP - 2779

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 10

M1 - 6027660

ER -

Influence of bending stress on magnetic properties of 3-phase 3-leg transformers with amorphous cores

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Keywords

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