| 变压器保护误动分析 |
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| 引用本文： | 朱文强,许建安.变压器保护误动分析[J].山东电力高等专科学校学报,2011,14(6):23-26. |
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| 作者姓名： | 朱文强 许建安 |
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| 作者单位： | 福建水利电力职业技术学院 福建 永安 366000 |
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| 摘 要： | 文章通过实例分析了双绕组变压器微机保护误动原因,提出了防误措施；分析了平行线路运行方式改变后造成变压器后备误动原因,提出了防止误动的整定方法和运行方式确定;通过实践证明文章提出的方法有效.
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| 关 键 词： | 比率制动差动保护 相位补偿 幅值平衡 |
Analysis on Malfunction of Transformer Protection |
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| Abstract: | Through examples,the paper analyzes malfunction cause of microcomputer protection of two winding transformer,and the measure to prevent the malfunction is also put forward.This paper also analyzes malfunction cause of backup protection of transformer when mode of operation in parallel circuit changes,and setting method to prevent malfunction and mode of operation determination are given as well.Practice shows that the methods mentioned in the paper are effective. |
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| Keywords: | ratio-restrained differential protection phase compensation amplitude balance |
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