| 中性点非直接接地系统的“虚幻接地”现象探讨 |
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| 引用本文： | 杨晟,张剑彪,杨凯. 中性点非直接接地系统的“虚幻接地”现象探讨[J]. 山西电力, 2013, 0(6): 18-21 |
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| 作者姓名： | 杨晟 张剑彪 杨凯 |
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| 作者单位： | 太原供电公司,山西太原030002 |
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| 摘 要： | 为了控制中性点非直接接地系统中＂虚幻接地＂现象的发生,在电磁式电压互感器引起的工频位移过电压的理论基础上,针对＂虚幻接地＂现象,详细分析了其产生的原因,探讨了工频位移过电压可能出现的其他情况,并提出了控制措施,实践证明控制措施有效、可行。
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| 关 键 词： | 中性点非直接接地系统 电磁式电压互感器 虚幻接地 |
Probe into Virtual Grounding Phenomenon of the Neutral Point Indirectly Grounded System |
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| YANG Sheng,ZHANG Jian-biao,YANG Kai. Probe into Virtual Grounding Phenomenon of the Neutral Point Indirectly Grounded System[J]. Shanxi Electric Power, 2013, 0(6): 18-21 |
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| Authors: | YANG Sheng ZHANG Jian-biao YANG Kai |
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| Affiliation: | (Taiyuan Power Supply Company, Taiyuan, Shanxi 030002, China) |
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| Abstract: | In order to control the virtual grounding phenomenon of the neutral point indirectly grounded system,based on the theory of power frequency displacement overvoltage,which is caused by electromagnetic voltage transformer,this paper made a detailed analysis of the causes of a common unreal ground phenomenon,introduced other circumstances that may arise in the power frequency displacement overvoltage,and proposed several measures to prevent this phenomenon. Practice has proved the measures are feasible and effective. |
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| Keywords: | neutral point indirectly grounded system electromagnetic voltage transformer virtual grounding |
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