Effects of magnetomechanical vibrations and bending stresses on three-phase three-leg transformers with amorphous cores

Chang Hung Hsu; Yeong Hwa Chang; Chun Yao Lee; Chia Shiang Yao; Yan Lou He; Huei Lung Chu; Chia Wen Chang; Wei Shou Chan

doi:10.1063/1.3678459

Effects of magnetomechanical vibrations and bending stresses on three-phase three-leg transformers with amorphous cores

Chang Hung Hsu^*, Yeong Hwa Chang, Chun Yao Lee, Chia Shiang Yao, Yan Lou He, Huei Lung Chu, Chia Wen Chang, Wei Shou Chan

^*Corresponding author for this work

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

9 Scopus citations

Abstract

This paper explores the influence of bending stresses on the magnetic characteristics of three-phase transformers with amorphous cores. Different types of core structures, including C-cores and toroidal cores, and their magnetic properties are compared using VSM and XRD. The losses in the magnetic core of the three-phase transformer are analyzed using the finite element analysis for both design and measurement. In addition, experimental results indicated that amorphous-core transformers with rectangular corners had higher audible noise and vibration intensities. This is because the condensed distribution of magnetic flux lines in the corners of the core may create high magnetic inductions associated with high magnetostriction. Finally, experiments with three-phase amorphous-core transformers were performed to study the effects of magnetism and magnetostriction on their performance in terms of core loss, vibration, and audible noise.

Original language	English
Article number	07E730
Journal	Journal of Applied Physics
Volume	111
Issue number	7
DOIs	https://doi.org/10.1063/1.3678459
State	Published - 01 04 2012

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title = "Effects of magnetomechanical vibrations and bending stresses on three-phase three-leg transformers with amorphous cores",

abstract = "This paper explores the influence of bending stresses on the magnetic characteristics of three-phase transformers with amorphous cores. Different types of core structures, including C-cores and toroidal cores, and their magnetic properties are compared using VSM and XRD. The losses in the magnetic core of the three-phase transformer are analyzed using the finite element analysis for both design and measurement. In addition, experimental results indicated that amorphous-core transformers with rectangular corners had higher audible noise and vibration intensities. This is because the condensed distribution of magnetic flux lines in the corners of the core may create high magnetic inductions associated with high magnetostriction. Finally, experiments with three-phase amorphous-core transformers were performed to study the effects of magnetism and magnetostriction on their performance in terms of core loss, vibration, and audible noise.",

author = "Hsu, {Chang Hung} and Chang, {Yeong Hwa} and Lee, {Chun Yao} and Yao, {Chia Shiang} and He, {Yan Lou} and Chu, {Huei Lung} and Chang, {Chia Wen} and Chan, {Wei Shou}",

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T1 - Effects of magnetomechanical vibrations and bending stresses on three-phase three-leg transformers with amorphous cores

AU - Hsu, Chang Hung

AU - Chang, Yeong Hwa

AU - Lee, Chun Yao

AU - Yao, Chia Shiang

AU - He, Yan Lou

AU - Chu, Huei Lung

AU - Chang, Chia Wen

AU - Chan, Wei Shou

PY - 2012/4/1

Y1 - 2012/4/1

N2 - This paper explores the influence of bending stresses on the magnetic characteristics of three-phase transformers with amorphous cores. Different types of core structures, including C-cores and toroidal cores, and their magnetic properties are compared using VSM and XRD. The losses in the magnetic core of the three-phase transformer are analyzed using the finite element analysis for both design and measurement. In addition, experimental results indicated that amorphous-core transformers with rectangular corners had higher audible noise and vibration intensities. This is because the condensed distribution of magnetic flux lines in the corners of the core may create high magnetic inductions associated with high magnetostriction. Finally, experiments with three-phase amorphous-core transformers were performed to study the effects of magnetism and magnetostriction on their performance in terms of core loss, vibration, and audible noise.

AB - This paper explores the influence of bending stresses on the magnetic characteristics of three-phase transformers with amorphous cores. Different types of core structures, including C-cores and toroidal cores, and their magnetic properties are compared using VSM and XRD. The losses in the magnetic core of the three-phase transformer are analyzed using the finite element analysis for both design and measurement. In addition, experimental results indicated that amorphous-core transformers with rectangular corners had higher audible noise and vibration intensities. This is because the condensed distribution of magnetic flux lines in the corners of the core may create high magnetic inductions associated with high magnetostriction. Finally, experiments with three-phase amorphous-core transformers were performed to study the effects of magnetism and magnetostriction on their performance in terms of core loss, vibration, and audible noise.

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Effects of magnetomechanical vibrations and bending stresses on three-phase three-leg transformers with amorphous cores

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