Comprehensive Analysis of Winding Electromagnetic Force and Deformation During No-Load Closing and Short-Circuiting of Power Transformers

When an electromagnetic transient occurs in a transformer, certain parts of the winding will be over stressed internally, which in severe cases will lead to the destruction of the winding insulation. Excitation inrush current and short-circuit current are the main causes of winding damage during ele...

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Main Authors: Chenchen Zhang, Wenqi Ge, Yi Xie, Yingying Li
Format: Article
Language:English
Published: IEEE 2021-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9387099/
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spelling doaj-beb1b7ec2ef94d4baee55f22480fee242021-06-02T23:17:43ZengIEEEIEEE Access2169-35362021-01-019733357334510.1109/ACCESS.2021.30680549387099Comprehensive Analysis of Winding Electromagnetic Force and Deformation During No-Load Closing and Short-Circuiting of Power TransformersChenchen Zhang0Wenqi Ge1https://orcid.org/0000-0001-5147-2380Yi Xie2Yingying Li3School of Control and Mechanical Engineering, Tianjin Chengjian University, Tianjin, ChinaSchool of Control and Mechanical Engineering, Tianjin Chengjian University, Tianjin, ChinaSchool of Control and Mechanical Engineering, Tianjin Chengjian University, Tianjin, ChinaSchool of Control and Mechanical Engineering, Tianjin Chengjian University, Tianjin, ChinaWhen an electromagnetic transient occurs in a transformer, certain parts of the winding will be over stressed internally, which in severe cases will lead to the destruction of the winding insulation. Excitation inrush current and short-circuit current are the main causes of winding damage during electromagnetic transients, resulting in or accelerating winding damage, and the presence of short-circuit current and excitation inrush current can greatly reduce the service life of power transformers. The process of closing and energizing a transformer generates a large excitation inrush, and when the current amplitude is the same, the excitation inrush generates a greater electromagnetic force than the short-circuit current. In this paper, the field-path coupling method and the finite element method (FEM) are combined to analyze the magnetomechanical effects on the transformer winding through the principle analysis and simulation, comparing the excitation inrush and short-circuit current scenarios, analyzing and concluding the leakage characteristics of the excitation inrush and short-circuit current and the winding force deformation results.https://ieeexplore.ieee.org/document/9387099/Excitation inrushshort-circuit currentelectromagnetic forcemagnetomechanical effect
collection DOAJ
language English
format Article
sources DOAJ
author Chenchen Zhang
Wenqi Ge
Yi Xie
Yingying Li
spellingShingle Chenchen Zhang
Wenqi Ge
Yi Xie
Yingying Li
Comprehensive Analysis of Winding Electromagnetic Force and Deformation During No-Load Closing and Short-Circuiting of Power Transformers
IEEE Access
Excitation inrush
short-circuit current
electromagnetic force
magnetomechanical effect
author_facet Chenchen Zhang
Wenqi Ge
Yi Xie
Yingying Li
author_sort Chenchen Zhang
title Comprehensive Analysis of Winding Electromagnetic Force and Deformation During No-Load Closing and Short-Circuiting of Power Transformers
title_short Comprehensive Analysis of Winding Electromagnetic Force and Deformation During No-Load Closing and Short-Circuiting of Power Transformers
title_full Comprehensive Analysis of Winding Electromagnetic Force and Deformation During No-Load Closing and Short-Circuiting of Power Transformers
title_fullStr Comprehensive Analysis of Winding Electromagnetic Force and Deformation During No-Load Closing and Short-Circuiting of Power Transformers
title_full_unstemmed Comprehensive Analysis of Winding Electromagnetic Force and Deformation During No-Load Closing and Short-Circuiting of Power Transformers
title_sort comprehensive analysis of winding electromagnetic force and deformation during no-load closing and short-circuiting of power transformers
publisher IEEE
series IEEE Access
issn 2169-3536
publishDate 2021-01-01
description When an electromagnetic transient occurs in a transformer, certain parts of the winding will be over stressed internally, which in severe cases will lead to the destruction of the winding insulation. Excitation inrush current and short-circuit current are the main causes of winding damage during electromagnetic transients, resulting in or accelerating winding damage, and the presence of short-circuit current and excitation inrush current can greatly reduce the service life of power transformers. The process of closing and energizing a transformer generates a large excitation inrush, and when the current amplitude is the same, the excitation inrush generates a greater electromagnetic force than the short-circuit current. In this paper, the field-path coupling method and the finite element method (FEM) are combined to analyze the magnetomechanical effects on the transformer winding through the principle analysis and simulation, comparing the excitation inrush and short-circuit current scenarios, analyzing and concluding the leakage characteristics of the excitation inrush and short-circuit current and the winding force deformation results.
topic Excitation inrush
short-circuit current
electromagnetic force
magnetomechanical effect
url https://ieeexplore.ieee.org/document/9387099/
work_keys_str_mv AT chenchenzhang comprehensiveanalysisofwindingelectromagneticforceanddeformationduringnoloadclosingandshortcircuitingofpowertransformers
AT wenqige comprehensiveanalysisofwindingelectromagneticforceanddeformationduringnoloadclosingandshortcircuitingofpowertransformers
AT yixie comprehensiveanalysisofwindingelectromagneticforceanddeformationduringnoloadclosingandshortcircuitingofpowertransformers
AT yingyingli comprehensiveanalysisofwindingelectromagneticforceanddeformationduringnoloadclosingandshortcircuitingofpowertransformers
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