Innovative Transformer Life Assessment Considering Moisture and Oil Circulation
Power transformers are one of the most expensive and important equipment in the power system. Significant differences exist in the insulation lifespan of transformers that have been in operation for more than 20 years, and using identical maintenance or scrapping methods may result in significant ec...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-01-01
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| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/17/2/429 |
| _version_ | 1797344185277218816 |
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| author | Zhengping Liang Yan Fang Hao Cheng Yongbin Sun Bo Li Kai Li Wenxuan Zhao Zhongxu Sun Yiyi Zhang |
| author_facet | Zhengping Liang Yan Fang Hao Cheng Yongbin Sun Bo Li Kai Li Wenxuan Zhao Zhongxu Sun Yiyi Zhang |
| author_sort | Zhengping Liang |
| collection | DOAJ |
| description | Power transformers are one of the most expensive and important equipment in the power system. Significant differences exist in the insulation lifespan of transformers that have been in operation for more than 20 years, and using identical maintenance or scrapping methods may result in significant economic losses. However, most existing transformer life assessment methods only consider the impact of moisture content on the life decay rate without considering the impact of oil circulation cooling modes, which leads to some evaluation errors. In this study, we established a new transformer life assessment method that considers the influence of moisture content and oil circulation cooling modes, which is more accurate than most life assessment methods. Then, the proposed life evaluation method was validated on the on-site transformers, demonstrating its accuracy and effectiveness. The novelty of this study is that it establishes a new on-site transformer life assessment method that considers the comprehensive effect of moisture content and oil circulation cooling mode, which helps to evaluate the remaining lifespan of power transformers more accurately and thus extends the transformer lifespan systematically. |
| first_indexed | 2024-03-08T10:58:42Z |
| format | Article |
| id | doaj.art-eda25c9c82334f898d35b77cdff8789b |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-08T10:58:42Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-eda25c9c82334f898d35b77cdff8789b2024-01-26T16:19:26ZengMDPI AGEnergies1996-10732024-01-0117242910.3390/en17020429Innovative Transformer Life Assessment Considering Moisture and Oil CirculationZhengping Liang0Yan Fang1Hao Cheng2Yongbin Sun3Bo Li4Kai Li5Wenxuan Zhao6Zhongxu Sun7Yiyi Zhang8North China Power Engineering Co., Ltd. of China Power Engineering Consulting Group, Beijing 100120, ChinaNorth China Power Engineering Co., Ltd. of China Power Engineering Consulting Group, Beijing 100120, ChinaNorth China Power Engineering Co., Ltd. of China Power Engineering Consulting Group, Beijing 100120, ChinaNorth China Power Engineering Co., Ltd. of China Power Engineering Consulting Group, Beijing 100120, ChinaGuangxi Power Transmission and Distribution Network Lightning Protection Engineering Technology Research Center, Guangxi University, Nanning 530004, ChinaNorth China Power Engineering Co., Ltd. of China Power Engineering Consulting Group, Beijing 100120, ChinaNorth China Power Engineering Co., Ltd. of China Power Engineering Consulting Group, Beijing 100120, ChinaNorth China Power Engineering Co., Ltd. of China Power Engineering Consulting Group, Beijing 100120, ChinaGuangxi Power Transmission and Distribution Network Lightning Protection Engineering Technology Research Center, Guangxi University, Nanning 530004, ChinaPower transformers are one of the most expensive and important equipment in the power system. Significant differences exist in the insulation lifespan of transformers that have been in operation for more than 20 years, and using identical maintenance or scrapping methods may result in significant economic losses. However, most existing transformer life assessment methods only consider the impact of moisture content on the life decay rate without considering the impact of oil circulation cooling modes, which leads to some evaluation errors. In this study, we established a new transformer life assessment method that considers the influence of moisture content and oil circulation cooling modes, which is more accurate than most life assessment methods. Then, the proposed life evaluation method was validated on the on-site transformers, demonstrating its accuracy and effectiveness. The novelty of this study is that it establishes a new on-site transformer life assessment method that considers the comprehensive effect of moisture content and oil circulation cooling mode, which helps to evaluate the remaining lifespan of power transformers more accurately and thus extends the transformer lifespan systematically.https://www.mdpi.com/1996-1073/17/2/429life evaluationoil-paper insulationpower transformermoistureoil circulation |
| spellingShingle | Zhengping Liang Yan Fang Hao Cheng Yongbin Sun Bo Li Kai Li Wenxuan Zhao Zhongxu Sun Yiyi Zhang Innovative Transformer Life Assessment Considering Moisture and Oil Circulation Energies life evaluation oil-paper insulation power transformer moisture oil circulation |
| title | Innovative Transformer Life Assessment Considering Moisture and Oil Circulation |
| title_full | Innovative Transformer Life Assessment Considering Moisture and Oil Circulation |
| title_fullStr | Innovative Transformer Life Assessment Considering Moisture and Oil Circulation |
| title_full_unstemmed | Innovative Transformer Life Assessment Considering Moisture and Oil Circulation |
| title_short | Innovative Transformer Life Assessment Considering Moisture and Oil Circulation |
| title_sort | innovative transformer life assessment considering moisture and oil circulation |
| topic | life evaluation oil-paper insulation power transformer moisture oil circulation |
| url | https://www.mdpi.com/1996-1073/17/2/429 |
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