| 低压电抗法在变压器低压绕组变形诊断中的应用 |
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| 引用本文： | 范旭华,黄耀德,石海珍,张淑珍.低压电抗法在变压器低压绕组变形诊断中的应用[J].电力设备,2007,8(3):35-37. |
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| 作者姓名： | 范旭华 黄耀德 石海珍 张淑珍 |
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| 作者单位： | 1. 新疆电力科学研究院,新疆,乌鲁木齐,830000
2. 国网武汉高压研究院,湖北省,武汉市,430074 |
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| 摘 要： | 低压电抗法在诊断变压器低压绕组变形中具有现实意义;通过4台110kV变压器现场测试、返厂解体验证的实例,提出了低压电抗法辅助频响法能提高诊断变压器低压绕组变形的准确率,以及当三相电抗横向比较出现最大互差约为2%时,不宜套用国标纵向电抗值变化不大于2%的要求的观点。
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| 关 键 词： | 变压器 绕组变形 诊断 电抗法 |
| 收稿时间： | 2006-12-15 |
| 修稿时间： | 2006年12月15 |
Application of Low Voltage Reactance Method in Diagnosis of Low Voltage Winding Deformation of Transformer |
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| FAN Xu-hua,HUANG Yao-de,SHI Hai-zhen,ZHANG Shu-zhen.Application of Low Voltage Reactance Method in Diagnosis of Low Voltage Winding Deformation of Transformer[J].Electrical Equipment,2007,8(3):35-37. |
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| Authors: | FAN Xu-hua HUANG Yao-de SHI Hai-zhen ZHANG Shu-zhen |
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| Abstract: | The diagnosis of transformer winding deformation using low voltage reactance method and its realization method were introduced briefly. Through the examples of onthespot tests and the disintegration verification returning to factory for 4110kV transformers, it is pointed out that using low voltage reactance method and frequency response method can improve the accuracy rate of the deformation diagnosis of transformer winding of low voltage, and when the maximum error of lateral comparison for three-phase reactance is more than 2%, the requirement of 2% for longitudinal reactance value in national standard is not suitable. |
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| Keywords: | transformer winding deformation diagnose reactance method |
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