| 高压电动机负序电流的产生及其保护整定 |
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| 引用本文： | 李荣华,周宏云,夏艳梅.高压电动机负序电流的产生及其保护整定[J].电气应用,2008,27(12). |
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| 作者姓名： | 李荣华 周宏云 夏艳梅 |
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| 作者单位： | 1. 湖南理工学院机电系,414000
2. 巴陵石化动力事业部,414003 |
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| 摘 要： | 分析了实际运行中异步电动机负序电流产生的几种典型情况,分析了负序电流对电动机本身和对保护装置的影响,结合实际运行经验,提出了在起动与正常运行时分开整定、采用定时限延时动作的合理可行的负序电流保护整定计算方法。
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| 关 键 词： | 异步电动机 负序电流 继电保护 整定计算 |
Generation and Protection Setting Analysis for Negative-Sequence Current in High-Voltage Motor |
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| Li Ronghua.Generation and Protection Setting Analysis for Negative-Sequence Current in High-Voltage Motor[J].Electrotechnical Application,2008,27(12). |
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| Authors: | Li Ronghua |
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| Abstract: | Several typical cases of negative-sequence current produced in asynchronous motors which are in practical running are analyzed.The effects of the negative-sequence current to the asynchronous motor itself are also researched.Based on the ac- tual operation experiences,a reasonable and feasible calculating method for the protection setting of negative-sequence current, which can be applied for the separate tuning between the starting and normal running and the fixed time-limit delaying operation, is proposed. |
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| Keywords: | asynchronous motor negative-sequence urrent relaying protection setting calculation |
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