| 一起电压暂降过程的案例分析 |
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| 引用本文： | 曹云轩,张捷,许宏. 一起电压暂降过程的案例分析[J]. 华中电力, 2012, 25(3): 31-32 |
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| 作者姓名： | 曹云轩 张捷 许宏 |
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| 作者单位： | 1. 重庆市电力公司长寿供电局,重庆长寿401220
2. 重庆大学电气工程学院,重庆沙坪坝400044 |
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| 摘 要： | 电压暂降是指供电电压幅值（有效值）短暂降低，随后恢复正常的现象。严重的电压暂降，将使用电设备停止工作，或引起所生产产品质量下降。通过对花庄220kV变电站一次电压暂降的原因进行分析研究，指出保护的正确动作也是引起电压暂降的一个重要原因，并就该企业抑制电压暂降问题的方案提出建议。
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| 关 键 词： | 电压暂降；短路故障；继电保护；行为评价 |
An Analysis of Voltage Sag Process |
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| CAO Yun-xuan,ZHANG Jie and XU Hong. An Analysis of Voltage Sag Process[J]. Central China Electric Power, 2012, 25(3): 31-32 |
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| Authors: | CAO Yun-xuan ZHANG Jie XU Hong |
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| Affiliation: | Changshou Power Supply Bureau of Chongqing Electric Power Corp.,Changshou Power Supply Bureau of Chongqing Electric Power Corp.,College of Electrical Engineering, Chongqing University |
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| Abstract: | Voltage sag refers to phenomenon of supply voltage amplitude(virtual value) sagging for a short time and then recovering to its normal amplitude.Serious voltage sag will make electrical equipment stop working or lead to the production of low-quality products.Based on the analysis of the cause of 220 kV Huazhuang substation voltage sag,this article points out that the correct action of relay protection is an important reason to voltage sag either,then recommends a solution for the problem at the end. |
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| Keywords: | voltage sag short-circuit fault relay protection behavior evaluation |
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