Research on thermal aging characteristics of silicone rubber composite materials for dry-type distribution transformers
To enhance the long-term operational stability of transformers, this study focuses on silicone rubber composite insulation materials for dry-type distribution transformers (D-DTs). Based on obtaining the optimal initial performance of silicone rubber composite materials through response surface mode...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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De Gruyter
2025-01-01
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| Series: | e-Polymers |
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| Online Access: | https://doi.org/10.1515/epoly-2024-0064 |
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| _version_ | 1832570436994465792 |
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| author | Li Woyang Zhou Lijun Qian Yunyun Lei Qian Xia Yingyi Wang Dongyang |
| author_facet | Li Woyang Zhou Lijun Qian Yunyun Lei Qian Xia Yingyi Wang Dongyang |
| author_sort | Li Woyang |
| collection | DOAJ |
| description | To enhance the long-term operational stability of transformers, this study focuses on silicone rubber composite insulation materials for dry-type distribution transformers (D-DTs). Based on obtaining the optimal initial performance of silicone rubber composite materials through response surface model, the thermal aging characteristics and long-term stability of intrinsic silicone rubber and silicone rubber composites are compared using molecular simulations, thermogravimetric analysis, and accelerated thermal aging tests. The results indicate that the addition of a small amount of h-boron nitride (BN) and Al2O3 can improve the thermal stability of the composite materials, and the decline in elongation at break is the key factor determining the thermal lifetime of silicone rubber. The silicone rubber composite material doped with 21.42 phr h-BN, 1.58 phr carbon nanotubes, and 2.67 phr Al2O3, based on the optimal initial performance, is projected to have a lifetime of 3,128 h under accelerated thermal aging at 200°C and 27.40 years under stable operating conditions of D-DTs, making it suitable for widespread application. |
| format | Article |
| id | doaj-art-740dc481f6434dd09e4a9637d9a0e9a8 |
| institution | Kabale University |
| issn | 1618-7229 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | e-Polymers |
| spelling | doaj-art-740dc481f6434dd09e4a9637d9a0e9a82025-02-02T15:45:26ZengDe Gruytere-Polymers1618-72292025-01-012511506210.1515/epoly-2024-0064Research on thermal aging characteristics of silicone rubber composite materials for dry-type distribution transformersLi Woyang0Zhou Lijun1Qian Yunyun2Lei Qian3Xia Yingyi4Wang Dongyang5School of Electrical Engineering, Southwest Jiaotong University, Chengdu, 611756, ChinaSchool of Electrical Engineering, Southwest Jiaotong University, Chengdu, 611756, ChinaSchool of Electrical Engineering, Southwest Jiaotong University, Chengdu, 611756, ChinaSchool of Electrical Engineering, Southwest Jiaotong University, Chengdu, 611756, ChinaSchool of Electrical Engineering, Southwest Jiaotong University, Chengdu, 611756, ChinaSchool of Electrical Engineering, Southwest Jiaotong University, Chengdu, 611756, ChinaTo enhance the long-term operational stability of transformers, this study focuses on silicone rubber composite insulation materials for dry-type distribution transformers (D-DTs). Based on obtaining the optimal initial performance of silicone rubber composite materials through response surface model, the thermal aging characteristics and long-term stability of intrinsic silicone rubber and silicone rubber composites are compared using molecular simulations, thermogravimetric analysis, and accelerated thermal aging tests. The results indicate that the addition of a small amount of h-boron nitride (BN) and Al2O3 can improve the thermal stability of the composite materials, and the decline in elongation at break is the key factor determining the thermal lifetime of silicone rubber. The silicone rubber composite material doped with 21.42 phr h-BN, 1.58 phr carbon nanotubes, and 2.67 phr Al2O3, based on the optimal initial performance, is projected to have a lifetime of 3,128 h under accelerated thermal aging at 200°C and 27.40 years under stable operating conditions of D-DTs, making it suitable for widespread application.https://doi.org/10.1515/epoly-2024-0064silicone rubberthermal agingmolecular simulationdry-type distribution transformer |
| spellingShingle | Li Woyang Zhou Lijun Qian Yunyun Lei Qian Xia Yingyi Wang Dongyang Research on thermal aging characteristics of silicone rubber composite materials for dry-type distribution transformers e-Polymers silicone rubber thermal aging molecular simulation dry-type distribution transformer |
| title | Research on thermal aging characteristics of silicone rubber composite materials for dry-type distribution transformers |
| title_full | Research on thermal aging characteristics of silicone rubber composite materials for dry-type distribution transformers |
| title_fullStr | Research on thermal aging characteristics of silicone rubber composite materials for dry-type distribution transformers |
| title_full_unstemmed | Research on thermal aging characteristics of silicone rubber composite materials for dry-type distribution transformers |
| title_short | Research on thermal aging characteristics of silicone rubber composite materials for dry-type distribution transformers |
| title_sort | research on thermal aging characteristics of silicone rubber composite materials for dry type distribution transformers |
| topic | silicone rubber thermal aging molecular simulation dry-type distribution transformer |
| url | https://doi.org/10.1515/epoly-2024-0064 |
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