报告详情
Development Characteristics of Streamer of Three-Element Mixed Insulating Oil Under Lightning Impulse
编号：139
访问权限：仅限参会人
更新：2022-08-29 11:21:39 浏览：116次
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摘要
Mixed insulating oil can take into account the advantages and disadvantages of mineral oil and natural ester, and it is an important research direction of new liquid dielectric. In order to study the development characteristics of streamer of mixed insulating oil under lightning impulse, this paper uses Kelamayi 25# mineral insulation oil and three-element mixed insulating oil as a comparison. Use a high-speed camera to shoot the discharge process in the insulating oil and record the discharge image, and based on the Gaussian equation and the current continuity equation, the simulation software COMSOL is used to perform numerical calculations on the established discharge model in insulating oil. The results show that the higher voltage of the streamer simulation model, the easier it is for the branch at the needle tip to develop into the dominant streamer branch, which is similar to the result that the higher voltage in the actual discharge, the more significant the streamer development, and the more dominant branches.And the discharge speed in the mixed insulating oil is lower than that in the mineral insulating oil under the action of the positive lightning wave or the negative lightning wave, and the discharge rate increases with the increase of the applied voltage. This study provides a theoretical basis for the further application of mixed insulating oil in high-power transformers.
关键词
Streamer，Lightning Impulse，Insulating oil，Discharge process
报告人
Junyi Zhang
graduate student Chong Qing University稿件作者
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重要日期
-
会议日期
09月25日
2022
至09月29日
2022
-
08月15日 2022
提前注册日期
-
09月10日 2022
报告提交截止日期
-
11月10日 2022
注册截止日期
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11月30日 2022
初稿截稿日期
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11月30日 2022
终稿截稿日期
主办单位
IEEE DEIS
承办单位
Chongqing University
联系方式
- Zhengyong Huang
- 61******@qq.com
历届会议
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2020年09月06日 中国 Beijing
2020 IEEE International Conference on High Voltage Engineering and Application -
2018年09月10日 希腊
2018 IEEE International Conference on High Voltage Engineering and Application -
2016年09月19日 中国 Chengdu, China
2016 IEEE International Conference on High Voltage Engineering and Application
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