| 一起10kV油浸式配电变压器匝间短路故障诊断与分析 |
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| 引用本文： | 苏国强,毛志强,刘合金,王峰,刘洋,张林利.一起10kV油浸式配电变压器匝间短路故障诊断与分析[J].变压器,2021,58(3):84-87. |
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| 作者姓名： | 苏国强 毛志强 刘合金 王峰 刘洋 张林利 |
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| 作者单位： | 国网山东省电力公司电力科学研究院,山东济南250002;国网山东省电力公司济南供电公司,山东济南250012 |
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| 基金项目： | 国家电网有限公司总部科技项目(520600180088) |
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| 摘 要： | 本文中作者通过油中溶解气体分析、绕组直流电阻等试验,并结合吊芯检查,分析了一起因油道堵塞造成局部过热,进而引发匝间短路的配电变压器典型故障,并针对故障原因提出了防范措施。
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| 关 键 词： | 配电变压器 故障分析 匝间短路 工艺改进 |
Diagnosis and Analysis of An Interturn Short Circuit Fault for 10kV Oil-Immersed Distribution Transformer |
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| SU Guo-qiang,MAO Zhi-qiang,LIU He-jin,WANG Feng,LIU Yang,ZHANG Lin-li.Diagnosis and Analysis of An Interturn Short Circuit Fault for 10kV Oil-Immersed Distribution Transformer[J].Transformer,2021,58(3):84-87. |
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| Authors: | SU Guo-qiang MAO Zhi-qiang LIU He-jin WANG Feng LIU Yang ZHANG Lin-li |
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| Affiliation: | (State Grid Shandong Electric Power Research Institute,Jinan 250002,China;Jinan Power Supply Company,Jinan 250012,China) |
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| Abstract: | Through experimental analysis of dissolved gas in oil,DC resistance of winding,a typical fault for 10 kV oil-immersed distribution transformer is analyzed.Combined with the check after lifting core,the interturn short-circuit resulting from blockage of oil gap is confirmed to be responsible for this fault.Some preventive measures are presented. |
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| Keywords: | Distribution Transformer Fault analysis Interturn short circuit Technology improvement |
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