| 电流互感器二次侧开路的危害及对策 |
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| 引用本文： | 谈强.电流互感器二次侧开路的危害及对策[J].广东电力,2009,22(7):54-57. |
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| 作者姓名： | 谈强 |
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| 作者单位： | 广州市旺隆热电有限公司,广东,广州,511340 |
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| 摘 要： | 对电流互感器（current transformer，CT）二次侧开路产生很高的感应电压、引起发电机负序电流保护装置和纵差保护装置误动作的危害进行了具体分析，并介绍几种实现CT二次断线保护的方法及解决CT二次侧开路问题的最佳方法。
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| 关 键 词： | 电流互感器 负序电流 纵差保护 非线性电阻 |
Hazards of Open Secondary Circuit of Current Transformer and Corresponding Countermeasures |
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| TAN Oiang.Hazards of Open Secondary Circuit of Current Transformer and Corresponding Countermeasures[J].Guangdong Electric Power,2009,22(7):54-57. |
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| Authors: | TAN Oiang |
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| Affiliation: | TAN Qiang(Guangzhou Huanbao Thermal Power Co.,Ltd.,Guangzhou,Guangdong 511340,China) |
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| Abstract: | The hazards of open secondary circuit of current transformer(CT) are analyzed in detail,which include high induced voltage along with maloperation of generator negative-sequence current protection and longitudinal differential protection.Several protection methods against broken secondary circuit of CT are introduced with the best solution to open secondary circuit of CT proposed. |
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| Keywords: | current transformer(CT) negative-sequence current longitudinal differential protection nonlinear resistance |
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