| 大型变压器中性点绝缘的现场考核 |
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| 引用本文： | 王伟,梁贵书,韩金华,杨晓辉,王吉. 大型变压器中性点绝缘的现场考核[J]. 高压电器, 2009, 45(2) |
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| 作者姓名： | 王伟 梁贵书 韩金华 杨晓辉 王吉 |
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| 作者单位： | 华北电力大学,河北,保定,071003;河南电力试验研究院高压所,河南,郑州,450052;华北电力大学,河北,保定,071003;河南电力试验研究院高压所,河南,郑州,450052 |
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| 摘 要： | 笔者通过对几例大型变压器中性点绝缘故障实例的分析,说明了现场考核变压器中性点绝缘的必要性。文章还介绍了利用变压器中性点现场交流耐压试验以考核其绝缘的方法,并提出对变压器中性点进行局部放电测量的建议。
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| 关 键 词： | 变压器 中性点绝缘 现场考核 交流耐压试验 局部放电测量 |
On-site Examination on Neutral-point Insulation of Large Transformer |
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| WANG Wei,LIANG Gui-shu,HAN Jin-hua,YANG Xiao-hui,WANG Ji. On-site Examination on Neutral-point Insulation of Large Transformer[J]. High Voltage Apparatus, 2009, 45(2) |
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| Authors: | WANG Wei LIANG Gui-shu HAN Jin-hua YANG Xiao-hui WANG Ji |
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| Affiliation: | 1.North China Electric Power University;Baoding 071003;China;2.Departent of High Voltage;Henan Electric Power Research Institute;Zhengzhou 450052;China |
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| Abstract: | Through the analysis of some neutral-point insulation faults of large transformers,the necessity of on-site examination on neutral-point insulation of large transformers is discussed.The method of assessing neutral-point insulation of a large transformer through on-site AC voltage-endurance test is presented.Moreover,partial discharge measurement of neutral point of transformer is suggested. |
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| Keywords: | transformer neutral-point insulation on-site examination AC voltage-endurance test partial discharge measurement |
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