Influence of Molecule Structure on Lightning Impulse Breakdown of Ester Liquids
Ester liquids are environmentally friendly insulating oils, and they can be used as an alternative to mineral oil in transformers, even though in most countries spills of ester oils must be treated like spills of mineral oil. Furthermore, the breakdown characteristics of ester liquids are worse than...
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| Format: | Article |
| Jezik: | English |
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MDPI AG
2021-02-01
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| Serija: | Energies |
| Teme: | |
| Online dostop: | https://www.mdpi.com/1996-1073/14/4/1061 |
| _version_ | 1827588949523038208 |
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| author | Huaqiang Li Linfeng Xia Shengwei Cai Zhiqiang Huang Jiaqi Li Lisheng Zhong |
| author_facet | Huaqiang Li Linfeng Xia Shengwei Cai Zhiqiang Huang Jiaqi Li Lisheng Zhong |
| author_sort | Huaqiang Li |
| collection | DOAJ |
| description | Ester liquids are environmentally friendly insulating oils, and they can be used as an alternative to mineral oil in transformers, even though in most countries spills of ester oils must be treated like spills of mineral oil. Furthermore, the breakdown characteristics of ester liquids are worse than those of mineral oils in heterogeneous electric fields. In this paper, we present a comprehensive experimental research on both positive and negative lightning impulse breakdown properties in point-plane geometries with gaps varying from 1 mm to 50 mm. The breakdown voltages and streamer velocities of five kinds of ester liquids, including natural ester, synthetic ester, and three kinds of single component esters have been measured. The results show that the double bonds have no effect on the breakdown voltage of ester liquids. The average streamer velocities of mono-esters are faster than that of other esters under positive polarity, and the breakdown voltages of all esters are close. |
| first_indexed | 2024-03-09T00:46:48Z |
| format | Article |
| id | doaj.art-92e5ec65f64b441a85bf8071e6d8bcb3 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T00:46:48Z |
| publishDate | 2021-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-92e5ec65f64b441a85bf8071e6d8bcb32023-12-11T17:28:01ZengMDPI AGEnergies1996-10732021-02-01144106110.3390/en14041061Influence of Molecule Structure on Lightning Impulse Breakdown of Ester LiquidsHuaqiang Li0Linfeng Xia1Shengwei Cai2Zhiqiang Huang3Jiaqi Li4Lisheng Zhong5State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an 710049, ChinaState Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an 710049, ChinaState Key Laboratory of Power Grid Environmental Protection, China Electric Power Research Institute Wuhan Branch, Wuhan 430074, ChinaTransformer Division CHINT Electric Co., Ltd., Shanghai 201614, ChinaDepartment of Smart Grid Information Engineering, School of Electrical Engineering, Hefei University of Technology, Hefei 230009, ChinaState Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an 710049, ChinaEster liquids are environmentally friendly insulating oils, and they can be used as an alternative to mineral oil in transformers, even though in most countries spills of ester oils must be treated like spills of mineral oil. Furthermore, the breakdown characteristics of ester liquids are worse than those of mineral oils in heterogeneous electric fields. In this paper, we present a comprehensive experimental research on both positive and negative lightning impulse breakdown properties in point-plane geometries with gaps varying from 1 mm to 50 mm. The breakdown voltages and streamer velocities of five kinds of ester liquids, including natural ester, synthetic ester, and three kinds of single component esters have been measured. The results show that the double bonds have no effect on the breakdown voltage of ester liquids. The average streamer velocities of mono-esters are faster than that of other esters under positive polarity, and the breakdown voltages of all esters are close.https://www.mdpi.com/1996-1073/14/4/1061streamerbreakdownester liquidsnatural esterlightning impulse |
| spellingShingle | Huaqiang Li Linfeng Xia Shengwei Cai Zhiqiang Huang Jiaqi Li Lisheng Zhong Influence of Molecule Structure on Lightning Impulse Breakdown of Ester Liquids Energies streamer breakdown ester liquids natural ester lightning impulse |
| title | Influence of Molecule Structure on Lightning Impulse Breakdown of Ester Liquids |
| title_full | Influence of Molecule Structure on Lightning Impulse Breakdown of Ester Liquids |
| title_fullStr | Influence of Molecule Structure on Lightning Impulse Breakdown of Ester Liquids |
| title_full_unstemmed | Influence of Molecule Structure on Lightning Impulse Breakdown of Ester Liquids |
| title_short | Influence of Molecule Structure on Lightning Impulse Breakdown of Ester Liquids |
| title_sort | influence of molecule structure on lightning impulse breakdown of ester liquids |
| topic | streamer breakdown ester liquids natural ester lightning impulse |
| url | https://www.mdpi.com/1996-1073/14/4/1061 |
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