Research on a degradation diagnosis technology for porcelain insulators using infrared thermography
The degradation of porcelain insulators poses a significant threat to the safe and stable operation of transmission lines. How to timely and effectively diagnose degraded insulators becomes a key technical challenge in the power industry. Based on the equivalent circuit model of the insulators and t...
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| Format: | Article |
| Language: | zho |
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zhejiang electric power
2025-01-01
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| Series: | Zhejiang dianli |
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| Online Access: | https://zjdl.cbpt.cnki.net/WKE3/WebPublication/paperDigest.aspx?paperID=6b5aad1c-f4fb-4958-948a-bab5ede36fe9 |
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| _version_ | 1823857059557277696 |
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| author | LIU Rong GU Chao ZHOU Chao YAO Jinxia LIU Chuanbin SUN Ruixiao |
| author_facet | LIU Rong GU Chao ZHOU Chao YAO Jinxia LIU Chuanbin SUN Ruixiao |
| author_sort | LIU Rong |
| collection | DOAJ |
| description | The degradation of porcelain insulators poses a significant threat to the safe and stable operation of transmission lines. How to timely and effectively diagnose degraded insulators becomes a key technical challenge in the power industry. Based on the equivalent circuit model of the insulators and temperature rise calculation equations， a simulation analysis is conducted to study the temperature rise patterns of insulators. Temperature discretization is calculated regionally， and temperature thresholds are set to efficiently diagnose the degraded insulators. Simulation and test results indicate that the temperature discretization varies across different regions of the insulator； the temperature rise of any insulator in strings initially increases and then decreases with a reduction in its internal resistance； and the temperature rise caused by degradation at the ends is greater than that at the intermediate voltage end. Through the changes in their temperature and neighboring insulators caused by changes in resistance， degraded insulators can be identified. |
| format | Article |
| id | doaj-art-5da9e1e2e9da417da624066dd4f1a4bf |
| institution | Kabale University |
| issn | 1007-1881 |
| language | zho |
| publishDate | 2025-01-01 |
| publisher | zhejiang electric power |
| record_format | Article |
| series | Zhejiang dianli |
| spelling | doaj-art-5da9e1e2e9da417da624066dd4f1a4bf2025-02-12T00:54:58Zzhozhejiang electric powerZhejiang dianli1007-18812025-01-0144111612310.19585/j.zjdl.2025010121007-1881（2025）01-0116-08Research on a degradation diagnosis technology for porcelain insulators using infrared thermographyLIU Rong0GU Chao1ZHOU Chao2YAO Jinxia3LIU Chuanbin4SUN Ruixiao5State Grid Shandong Electric Power Research Institute， Jinan 250003， ChinaState Grid Shandong Electric Power Research Institute， Jinan 250003， ChinaState Grid Shandong Electric Power Research Institute， Jinan 250003， ChinaState Grid Shandong Electric Power Research Institute， Jinan 250003， ChinaState Grid Shandong Electric Power Research Institute， Jinan 250003， ChinaCollege of Electrical Engineering and Electronics， Shandong University of Technology， Zibo， Shandong 255049， ChinaThe degradation of porcelain insulators poses a significant threat to the safe and stable operation of transmission lines. How to timely and effectively diagnose degraded insulators becomes a key technical challenge in the power industry. Based on the equivalent circuit model of the insulators and temperature rise calculation equations， a simulation analysis is conducted to study the temperature rise patterns of insulators. Temperature discretization is calculated regionally， and temperature thresholds are set to efficiently diagnose the degraded insulators. Simulation and test results indicate that the temperature discretization varies across different regions of the insulator； the temperature rise of any insulator in strings initially increases and then decreases with a reduction in its internal resistance； and the temperature rise caused by degradation at the ends is greater than that at the intermediate voltage end. Through the changes in their temperature and neighboring insulators caused by changes in resistance， degraded insulators can be identified.https://zjdl.cbpt.cnki.net/WKE3/WebPublication/paperDigest.aspx?paperID=6b5aad1c-f4fb-4958-948a-bab5ede36fe9degraded insulatorsinfrared imagingtemperature rise modellingthermal characteristicstemperature thresholds |
| spellingShingle | LIU Rong GU Chao ZHOU Chao YAO Jinxia LIU Chuanbin SUN Ruixiao Research on a degradation diagnosis technology for porcelain insulators using infrared thermography Zhejiang dianli degraded insulators infrared imaging temperature rise modelling thermal characteristics temperature thresholds |
| title | Research on a degradation diagnosis technology for porcelain insulators using infrared thermography |
| title_full | Research on a degradation diagnosis technology for porcelain insulators using infrared thermography |
| title_fullStr | Research on a degradation diagnosis technology for porcelain insulators using infrared thermography |
| title_full_unstemmed | Research on a degradation diagnosis technology for porcelain insulators using infrared thermography |
| title_short | Research on a degradation diagnosis technology for porcelain insulators using infrared thermography |
| title_sort | research on a degradation diagnosis technology for porcelain insulators using infrared thermography |
| topic | degraded insulators infrared imaging temperature rise modelling thermal characteristics temperature thresholds |
| url | https://zjdl.cbpt.cnki.net/WKE3/WebPublication/paperDigest.aspx?paperID=6b5aad1c-f4fb-4958-948a-bab5ede36fe9 |
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