Ablative fault mechanism analysis and structure improvement of buffer layer of high voltage XLPE cable
Ablation failures of buffer layer in high voltage cross-linked polyethylene (XLPE) cables occur frequently, which has attracted widespread attention in the industry. The optimization of cable structure is conducive to solving the problem of discharge ablation. From the perspective of the discharge b...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
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Editorial Department of Electric Power Engineering Technology
2023-05-01
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| Series: | 电力工程技术 |
| Subjects: | |
| Online Access: | https://www.epet-info.com/dlgcjsen/article/abstract/220824209 |
| _version_ | 1797820046585626624 |
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| author | FENG Yao ZHAO Peng LI Wenjie OUYANG Benhong ZHAO Jiankang |
| author_facet | FENG Yao ZHAO Peng LI Wenjie OUYANG Benhong ZHAO Jiankang |
| author_sort | FENG Yao |
| collection | DOAJ |
| description | Ablation failures of buffer layer in high voltage cross-linked polyethylene (XLPE) cables occur frequently, which has attracted widespread attention in the industry. The optimization of cable structure is conducive to solving the problem of discharge ablation. From the perspective of the discharge burn mechanism of buffer layer, the finite element model of cable is established for electric field simulation to analyze and discuss the variation of air gap electric field distribution under different structural parameters, thus designing and studying the structure optimization scheme. The results show that, on the premise of satisfying the design requirements of cable, it is beneficial to reduce the air gap electric field distortion because of poor contact, by reducing the thickness of the buffer layer and corrugated depth, as well as increasing extrusion depth between the metal sheath and the buffer layer. The smooth aluminum sleeve structure has low contact resistance with the buffer layer, so it has advantages in restraining fault of buffer layer discharge ablation. |
| first_indexed | 2024-03-13T09:31:39Z |
| format | Article |
| id | doaj.art-a42bd11a65904a2aa36bb18b76b79d86 |
| institution | Directory Open Access Journal |
| issn | 2096-3203 |
| language | zho |
| last_indexed | 2024-03-13T09:31:39Z |
| publishDate | 2023-05-01 |
| publisher | Editorial Department of Electric Power Engineering Technology |
| record_format | Article |
| series | 电力工程技术 |
| spelling | doaj.art-a42bd11a65904a2aa36bb18b76b79d862023-05-26T00:26:41ZzhoEditorial Department of Electric Power Engineering Technology电力工程技术2096-32032023-05-0142324224910.12158/j.2096-3203.2023.03.027220824209Ablative fault mechanism analysis and structure improvement of buffer layer of high voltage XLPE cableFENG Yao0ZHAO Peng1LI Wenjie2OUYANG Benhong3ZHAO Jiankang4China Electric Power Research Institute, Wuhan 430074, ChinaChina Electric Power Research Institute, Wuhan 430074, ChinaChina Electric Power Research Institute, Wuhan 430074, ChinaChina Electric Power Research Institute, Wuhan 430074, ChinaChina Electric Power Research Institute, Wuhan 430074, ChinaAblation failures of buffer layer in high voltage cross-linked polyethylene (XLPE) cables occur frequently, which has attracted widespread attention in the industry. The optimization of cable structure is conducive to solving the problem of discharge ablation. From the perspective of the discharge burn mechanism of buffer layer, the finite element model of cable is established for electric field simulation to analyze and discuss the variation of air gap electric field distribution under different structural parameters, thus designing and studying the structure optimization scheme. The results show that, on the premise of satisfying the design requirements of cable, it is beneficial to reduce the air gap electric field distortion because of poor contact, by reducing the thickness of the buffer layer and corrugated depth, as well as increasing extrusion depth between the metal sheath and the buffer layer. The smooth aluminum sleeve structure has low contact resistance with the buffer layer, so it has advantages in restraining fault of buffer layer discharge ablation.https://www.epet-info.com/dlgcjsen/article/abstract/220824209cable buffer layerdischarge burnselectric field distributioncross-linked polyethylene (xlpe)structure improvementsmooth aluminum sheath |
| spellingShingle | FENG Yao ZHAO Peng LI Wenjie OUYANG Benhong ZHAO Jiankang Ablative fault mechanism analysis and structure improvement of buffer layer of high voltage XLPE cable 电力工程技术 cable buffer layer discharge burns electric field distribution cross-linked polyethylene (xlpe) structure improvement smooth aluminum sheath |
| title | Ablative fault mechanism analysis and structure improvement of buffer layer of high voltage XLPE cable |
| title_full | Ablative fault mechanism analysis and structure improvement of buffer layer of high voltage XLPE cable |
| title_fullStr | Ablative fault mechanism analysis and structure improvement of buffer layer of high voltage XLPE cable |
| title_full_unstemmed | Ablative fault mechanism analysis and structure improvement of buffer layer of high voltage XLPE cable |
| title_short | Ablative fault mechanism analysis and structure improvement of buffer layer of high voltage XLPE cable |
| title_sort | ablative fault mechanism analysis and structure improvement of buffer layer of high voltage xlpe cable |
| topic | cable buffer layer discharge burns electric field distribution cross-linked polyethylene (xlpe) structure improvement smooth aluminum sheath |
| url | https://www.epet-info.com/dlgcjsen/article/abstract/220824209 |
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