| 10kV小电阻接地系统接地变压器零序保护误动原因分析 |
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| 引用本文： | 王英民.10kV小电阻接地系统接地变压器零序保护误动原因分析[J].华北电力技术,2009(1):24-26. |
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| 作者姓名： | 王英民 |
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| 作者单位： | 惠州供电局,广东惠州,516001;华北电力大学,北京,012206 |
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| 摘 要： | 介绍了小电阻接地系统的故障机理及电容电流的工程计算方法。并就某110kV变电站接地变压器零序电流保护误动的原因进行了深入的分析，针对存在的问题提出了相应的改进措施。
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| 关 键 词： | 小电阻接地系统 接地变压器 零序保护 电容电流 误动 |
Cause of Malfunction of Grounding Transformer Zero-sequence Current Protection in 10kV Low Resistance Grounding System |
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| Wang Ying-min.Cause of Malfunction of Grounding Transformer Zero-sequence Current Protection in 10kV Low Resistance Grounding System[J].North China Electric Power,2009(1):24-26. |
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| Authors: | Wang Ying-min |
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| Affiliation: | 1;2;1.Huizhou Power Supply Bureau;Huizhou 516001;China;2.North China Electric Power University;Beijing 012206;China |
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| Abstract: | This paper introduced the fault mechanism and capacitive current calculation method of the low resistance grounding system.And it analyzed in depth the cause for malfunction of grounding transformer zero-sequence current protection in a 110 kV substation.According to the problems existed respective improving measures were presented. |
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| Keywords: | low resistance grounding system grounding transformer zero-sequence current protection capacitive current malfunction |
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