| 750kV变压器(电抗器)高压套管雨闪事故分析及防范措施 |
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| 引用本文： | 杨放南,赵隆乾,白伟,李志玮,闫建欣,彭洁. 750kV变压器(电抗器)高压套管雨闪事故分析及防范措施[J]. 电瓷避雷器, 2019, 0(3): 212-215 |
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| 作者姓名： | 杨放南 赵隆乾 白伟 李志玮 闫建欣 彭洁 |
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| 作者单位： | 国网青海省电力公司,西宁,810008;国网青海省电力公司检修公司,西宁,810003;国网青海电力科学试验研究院,西宁,810008 |
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| 摘 要： | 750 kV变压器(电抗器)高压套管雨闪事故较为罕见。分析了2起750 kV变压器(电抗器)高压套管雨闪事故,通过对事故原因进行剖析,找出了套管结构型式、安装设计存在的不足,从优化套管安装设计和加装辅助伞裙等方面提出了防雨闪措施。针对国内无750 kV高压套管加装辅助伞裙实例的情况下,通过现场应用实践了伞裙安装技术要求,为优化750 kV变压器(电抗器)设计制造和提高现场防雨闪技术提供了借鉴经验。
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| 关 键 词： | 750 KV 变压器 高压套管 雨闪 |
Analysis of the Rainstorm Accident of 750 kV High Voltage Bushing for Transformer(Reactor) |
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| YANG Fangnan,ZHAO Longqian,BAI Wei,LI Zhiwei,YAN Jianxin,PENG Jie. Analysis of the Rainstorm Accident of 750 kV High Voltage Bushing for Transformer(Reactor)[J]. Insulators and Surge Arresters, 2019, 0(3): 212-215 |
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| Authors: | YANG Fangnan ZHAO Longqian BAI Wei LI Zhiwei YAN Jianxin PENG Jie |
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| Affiliation: | (State Grid Qinghai Electric Power Company, Xining 810008, China;State Grid Qinghai Electric Power Maintenance Company, Xining 810003, China;State Grid Qinghai Electric Power Science Experimental Research Institute, Xining 810008, China) |
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| Abstract: | Rainstorm accidents of 750 kV high voltage bushing for transformer(reactor)are rare. The author analyzes two cases of rain-flash accidents of 750 kV high voltage bushing for transformer(reactor), analyzes the causes of the accidents, finds out the deficiencies in the structure and installation design of bushing, and puts forward rain-flash prevention measures from the aspects of optimizing the installation design of bushing and adding auxiliary umbrella skirt. Aiming at the situation that there is no auxiliary umbrella skirt installed with 750 kV high voltage bushing in China, the technical requirements for umbrella skirt installation are put into practice through field application, which provides reference experience for optimizing the design and manufacture of 750 kV transformer(reactor)and improving the field rainproof technology. |
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| Keywords: | 750 kV transformer high voltage bushing rain-flash |
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