| 干式接地变压器的故障分析 |
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| 引用本文： | 王国亮,吕乐,胡伟,刘峥,秦旷,李俊华,王珏,王哲,程海涛,邱军亮.干式接地变压器的故障分析[J].电气开关,2021,59(2):84-86. |
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| 作者姓名： | 王国亮 吕乐 胡伟 刘峥 秦旷 李俊华 王珏 王哲 程海涛 邱军亮 |
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| 作者单位： | 国网郑州供电公司,河南 郑州450052;国网洛阳供电公司,河南 洛阳471000;国网河南技培中心,河南 郑州 450001 |
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| 摘 要： | 本文介绍两台干式接地变压器相继故障,通过事故象征,进行全面分析,由于制造工艺欠佳等原因,造成运行中高压侧绕组匝间短路,确定了产品故障的根本原因。
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| 关 键 词： | 接地变 匝间短路 绕组 绝缘老化 |
Fault Analysis of Dry Earthing Transformer |
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| WANG Guo-liang,LV Le,HU Wei,LIU Zheng,QIN Kuang,LI Jun-hua,WANG Jue,WANG Zhe,CHENG Hai-tao,QIU Jun-liang.Fault Analysis of Dry Earthing Transformer[J].Electric Switchgear,2021,59(2):84-86. |
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| Authors: | WANG Guo-liang LV Le HU Wei LIU Zheng QIN Kuang LI Jun-hua WANG Jue WANG Zhe CHENG Hai-tao QIU Jun-liang |
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| Affiliation: | (Zhengzhou Power Supply Company of State Grid,Zhengzhou 450052,China;State Grid Luoyang Power Supply Company,Luoyang 471000,China;Henan Technical Training Center of State Gfrid,Zhengzhou 450001,China) |
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| Abstract: | This article introduces the successive failures of two dry-type grounding transformers.Through the accident symbol,a comprehensive analysis is carried out.Due to poor manufacturing technology and other reasons,the high-voltage side winding turns short circuit during operation,and the root cause of the product failure is determined. |
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| Keywords: | ground change Interturn short circuit Winding Insulation aging |
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