| 线路距离保护作为变压器后备的定值整定 |
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| 引用本文： | 周健.线路距离保护作为变压器后备的定值整定[J].江苏电机工程,2009,28(2):28-30. |
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| 作者姓名： | 周健 |
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| 作者单位： | 广东茂名供电局,广东,茂名,525000 |
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| 摘 要： | 分析了一次由于定值整定的不恰当造成距离保护误动的事故，分析了零序补偿系数的整定计算方法。在此分析的基础上，提出了220kV馈供线路接地距离保护的零序补偿系数整定计算时应考虑变压器阻抗影响的观点。
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| 关 键 词： | 距离保护 变压器 零序补偿系数 |
Line Distance Protection Settings Used as Backup Protection for Transformer |
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| ZHOU Jian.Line Distance Protection Settings Used as Backup Protection for Transformer[J].Jiangsu Electrical Engineering,2009,28(2):28-30. |
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| Authors: | ZHOU Jian |
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| Affiliation: | Maoming Power Supply Bureau;Maoming 525000;China |
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| Abstract: | Analysis on mal-operation caused by improper line distance protection settings is carried out,and the setting method for zero sequence compensation coefficients is discussed.Based on the analysis and discussion,some advice about zero sequence compensation coefficients settings is proposed when line protection used as backup protection for transformer,and the effect of transformer impedance can't be ignored in this instance. |
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| Keywords: | distance protection transformer zero sequence compensation coefficient |
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