| 细水雾应用于变压器的带电绝缘性能研究 |
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| 引用本文： | 陈宝辉,邓捷,孙易成,李波,方针,陶莉.细水雾应用于变压器的带电绝缘性能研究[J].消防科学与技术,2020,39(1):67-69. |
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| 作者姓名： | 陈宝辉 邓捷 孙易成 李波 方针 陶莉 |
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| 作者单位： | 1. 电网输变电设备防灾减灾国家重点实验室，湖南长沙410007；2. 长沙理工大学电气与信息工程学院，湖南长沙410114；3. 国网湖南省电力有限公司电力科学研究院，湖南长沙410007 |
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| 基金项目： | 湖南省重点研发计划项目(2017SK2371);湖南省自然科学基金资助项目(2018JJ3004);国家电网公司重大项目(5216A0180006,5216A019000M) |
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| 摘 要： | 为研究细水雾应用于变压器的带电绝缘性能，开展最高电压近1 000 kV 的细水雾间隙击穿试验，对比不同细水雾喷头、不同电极类型下的细水雾击穿电压。试验表明，细水雾的击穿电压与空气相近，绝缘能力良好。开展了覆盖高压套管的220 kV真型变压器带电喷雾试验。结果表明，变压器在喷雾前后，电流基本无变化，验证了细水雾保护变压器的带电绝缘能力。
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| 关 键 词： | 细水雾 高电压 绝缘 击穿电压 变压器 |
| 收稿时间： | 2019-09-06 |
Study on electrical insulation performance of water mist for electrical transformer |
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| CHEN Bao-hui,DENG Jie,SUN Yi-cheng,LI Bo,FANG Zhen,TAO Li.Study on electrical insulation performance of water mist for electrical transformer[J].Fire Science and Technology,2020,39(1):67-69. |
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| Authors: | CHEN Bao-hui DENG Jie SUN Yi-cheng LI Bo FANG Zhen TAO Li |
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| Affiliation: | 1. State Key Laboratory of Disaster Prevention & Reduction for Power Grid Transmission and Distribution Equipment, Hunan Changsha 410007, China; 2.College of Electrical and Information Engineering, Changsha University of Science & Technology, Hunan Changsha 410114, China; 3.State Grid Hunan Electric Power Company Research Institute,Hunan Changsha 410007, China |
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| Abstract: | In order to study the electrical insulation performance of water mist for electrical transformers, the breakdown voltages of water mist were tested. The test voltage was nearly 1 000 kV. The breakdown voltage of water mist under different electrode types or using different water mist nozzles were compared. The results showed that the breakdown voltage of water mist was similar to that of air, and the insulation ability was good. The electric spray water mist test of 220 kV transformer covered with high voltage bushing was carried out. By comparison of electric current of transformer before and after spraying, no significant differences were found, which verifies the electrical insulation ability of water mist. |
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| Keywords: | water mist high-voltage insulation breakdown voltage transformer |
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