Research on magnetic flux leakage characteristics and identification methods under typical transformer winding defects
Current research lacks a comprehensive analysis of magnetic flux leakage patterns caused by transformer winding defects， which complicates defect detection. To address this， A 3D finite element simulation model of a 110 kV transformer was developed to simulate the winding defects. A study investigat...
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zhejiang electric power
2025-02-01
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| Series: | Zhejiang dianli |
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| Online Access: | https://zjdl.cbpt.cnki.net/WKE3/WebPublication/paperDigest.aspx?paperID=fd0c6e48-db2b-4dd1-b319-d85286620e39 |
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| _version_ | 1850042366982881280 |
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| author | LU Yingqiang HU Zhongzhong SHANG Hujun ZHOU Quan |
| author_facet | LU Yingqiang HU Zhongzhong SHANG Hujun ZHOU Quan |
| author_sort | LU Yingqiang |
| collection | DOAJ |
| description | Current research lacks a comprehensive analysis of magnetic flux leakage patterns caused by transformer winding defects， which complicates defect detection. To address this， A 3D finite element simulation model of a 110 kV transformer was developed to simulate the winding defects. A study investigated magnetic flux leakage under different defect locations and severities. Results show that winding deformations cause significant axial magnetic flux leakage variations between high and low-voltage windings， with an expanded distortion range. In cases of inter-turn short-circuit defects， the surge in current within the short-circuited winding leads to noticeable distortions in the internal magnetic flux leakage， both between high and low-voltage windings and on the outer side of the high-voltage winding. A comparison between experimentally measured leakage distributions and the simulation results confirmed the accuracy of the finite element model. Additionally， detection criteria based on the simulation model were developed， allowing for the identification of localized winding deformations and few-turn short-circuit defects. |
| format | Article |
| id | doaj-art-5cd8ed25a7934ffd95143402c4aec08d |
| institution | DOAJ |
| issn | 1007-1881 |
| language | zho |
| publishDate | 2025-02-01 |
| publisher | zhejiang electric power |
| record_format | Article |
| series | Zhejiang dianli |
| spelling | doaj-art-5cd8ed25a7934ffd95143402c4aec08d2025-08-20T02:55:35Zzhozhejiang electric powerZhejiang dianli1007-18812025-02-0144211012310.19585/j.zjdl.2025020111007-1881（2025）02-0110-14Research on magnetic flux leakage characteristics and identification methods under typical transformer winding defectsLU Yingqiang0HU Zhongzhong1SHANG Hujun2ZHOU Quan3Guodian Nanjiang Automation Co.， Ltd， Nanjing 211100， ChinaGuodian Nanjiang Automation Co.， Ltd， Nanjing 211100， ChinaState Key Laboratory of Power Transmission Equipment Technology， Chongqing University， Chongqing 400044， ChinaState Key Laboratory of Power Transmission Equipment Technology， Chongqing University， Chongqing 400044， ChinaCurrent research lacks a comprehensive analysis of magnetic flux leakage patterns caused by transformer winding defects， which complicates defect detection. To address this， A 3D finite element simulation model of a 110 kV transformer was developed to simulate the winding defects. A study investigated magnetic flux leakage under different defect locations and severities. Results show that winding deformations cause significant axial magnetic flux leakage variations between high and low-voltage windings， with an expanded distortion range. In cases of inter-turn short-circuit defects， the surge in current within the short-circuited winding leads to noticeable distortions in the internal magnetic flux leakage， both between high and low-voltage windings and on the outer side of the high-voltage winding. A comparison between experimentally measured leakage distributions and the simulation results confirmed the accuracy of the finite element model. Additionally， detection criteria based on the simulation model were developed， allowing for the identification of localized winding deformations and few-turn short-circuit defects.https://zjdl.cbpt.cnki.net/WKE3/WebPublication/paperDigest.aspx?paperID=fd0c6e48-db2b-4dd1-b319-d85286620e39transformerwinding deformationturn-to-turn short circuitmagnetic flux leakage analysisfinite element simulationwinding defect identification |
| spellingShingle | LU Yingqiang HU Zhongzhong SHANG Hujun ZHOU Quan Research on magnetic flux leakage characteristics and identification methods under typical transformer winding defects Zhejiang dianli transformer winding deformation turn-to-turn short circuit magnetic flux leakage analysis finite element simulation winding defect identification |
| title | Research on magnetic flux leakage characteristics and identification methods under typical transformer winding defects |
| title_full | Research on magnetic flux leakage characteristics and identification methods under typical transformer winding defects |
| title_fullStr | Research on magnetic flux leakage characteristics and identification methods under typical transformer winding defects |
| title_full_unstemmed | Research on magnetic flux leakage characteristics and identification methods under typical transformer winding defects |
| title_short | Research on magnetic flux leakage characteristics and identification methods under typical transformer winding defects |
| title_sort | research on magnetic flux leakage characteristics and identification methods under typical transformer winding defects |
| topic | transformer winding deformation turn-to-turn short circuit magnetic flux leakage analysis finite element simulation winding defect identification |
| url | https://zjdl.cbpt.cnki.net/WKE3/WebPublication/paperDigest.aspx?paperID=fd0c6e48-db2b-4dd1-b319-d85286620e39 |
| work_keys_str_mv | AT luyingqiang researchonmagneticfluxleakagecharacteristicsandidentificationmethodsundertypicaltransformerwindingdefects AT huzhongzhong researchonmagneticfluxleakagecharacteristicsandidentificationmethodsundertypicaltransformerwindingdefects AT shanghujun researchonmagneticfluxleakagecharacteristicsandidentificationmethodsundertypicaltransformerwindingdefects AT zhouquan researchonmagneticfluxleakagecharacteristicsandidentificationmethodsundertypicaltransformerwindingdefects |