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| Analysis and Process on a Defect of 500kV Transformer Clamp Insulation Zero Resistance Against Ground |
| Zhang Xingfei |
| Hebei Electric Power Maintenance Company, Shijiazhuang 050070 |
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Abstract This paper introduces a defect of 500kV transformer clamp insulation zero resistance against ground after returned to the factory repair, and the defect is based on the field test, it is pointed out that the direct reason of the clamp insulation zero resistance against ground fault of the transformer is insufficient clearance between clamps and cover, and the concrete improvement are put forward in combination with the defect.
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Published: 06 December 2017
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| Cite this article: |
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Zhang Xingfei. Analysis and Process on a Defect of 500kV Transformer Clamp Insulation Zero Resistance Against Ground[J]. Electrical Engineering, 2017, 18(11): 142-144.
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| URL: |
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http://dqjs.cesmedia.cn/EN/Y2017/V18/I11/142
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[1] 王梦云. 110kV及以上变压器事故与缺陷统计分析[J]. 供用电, 2007, 24(1): 1-5.
[2] 吴峰, 楼钢, 鲁晓帆. 一起引起变压器铁心接地电流带电检测数据异常的新问题[J]. 电气技术, 2014, 15(5): 98-100.
[3] 程冠琪. 一起35kV站用变压器低温过热故障诊断及处理[J]. 电气技术, 2015, 16(8): 60-64.
[4] DL/T 573—2010. 电力变压器检修导则[S].
[5] 徐润光. 一起500kV主变铁心夹件接地故障的分析及现场处理[J]. 变压器, 2005, 42(3): 43-44.
[6] 张志奎, 刘强, 许岩峰. 一起220kV变压器夹件接地故障及处理[J]. 变压器, 2013, 50(10): 后插1-后插2.
[7] 李海宁, 王佐亮. 一起330kV大型变压器铁心故障的检查与处理[J]. 变压器, 2010, 47(2): 54-55. |
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2017, Vol. 18 
