| 一起550kV油浸纸变压器套管工频闪络原因分析 |
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| 引用本文： | 李华良,郝宇亮,钟磊,李博,申萌,王露,郭晗. 一起550kV油浸纸变压器套管工频闪络原因分析[J]. 高压电器, 2011, 47(2) |
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| 作者姓名： | 李华良 郝宇亮 钟磊 李博 申萌 王露 郭晗 |
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| 作者单位： | 西安高压电器研究院有限责任公司,西安,710077 |
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| 摘 要： | 对一起550 kV变压器套管的工频闪络原因进行了分析,建立了套管和试验油缸的全尺寸有限元模型并对模型进行了有限元仿真,分析了小套管外壁有无气泡对套管内部电场分布的影响。最后提出试验前应将套管充分静置等防止此类事故的建议,对实际试验具有一定的指导意义。
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| 关 键 词： | 油浸纸变压器套管 闪络 有限元方法 电场畸变 |
Investigation on AC Flashover of a 550 kV Oil Impregnated Paper Transformer Bushing |
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| LI Hua-liang,HAO Yu-liang,ZHONG Lei,LI Bo,SHEN Meng,WANG Lu,GUO Han. Investigation on AC Flashover of a 550 kV Oil Impregnated Paper Transformer Bushing[J]. High Voltage Apparatus, 2011, 47(2) |
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| Authors: | LI Hua-liang HAO Yu-liang ZHONG Lei LI Bo SHEN Meng WANG Lu GUO Han |
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| Affiliation: | LI Hua-liang,HAO Yu-liang,ZHONG Lei,LI Bo,SHEN Meng,WANG Lu,GUO Han(Xi'an High Voltage Apparatus Research Institute,Xi'an 710077,China) |
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| Abstract: | This paper analyses a typical AC flashover of 550 kV oil impregnated paper transformer bushing.The finite element model of the bushing and oil tank has been built and investigated according to the actual size.Moreover,the electrical field influence of small bubbles on the bushing casing has also been studied.Finally,practical suggestion has been proposed in order to prevent such similar failure. |
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| Keywords: | oil impregnated paper(OIP) bushing flashover finite element method electric field distortion |
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