| 冶金自备电厂发电机差动保护误动分析 |
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| 引用本文： | 高彩玲.冶金自备电厂发电机差动保护误动分析[J].冶金动力,2009(1):1-3. |
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| 作者姓名： | 高彩玲 |
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| 作者单位： | 酒泉钢铁集团公司设计研究院,甘肃嘉峪关,735100 |
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| 摘 要： | 发电机的差动保护误动对电力系统影响非常大，在采用了微机保护装置以后，能智能地记录下故障时的系统情况，给故障分析提供第一手的资料。根据所掌握的录波波形进行分析，发现误动原因是一次暂态特性的差异。还对设计运行单位提出了建议，以避免此类事故的发生。
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| 关 键 词： | 发电机差动保护 电流互感器暂态特性 故障录波 |
Analysis of Differential Protection Misoperation of Generator for Metallurgic Industrial Power Plant |
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| GAO Cai-ling.Analysis of Differential Protection Misoperation of Generator for Metallurgic Industrial Power Plant[J].Metallurgical Power,2009(1):1-3. |
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| Authors: | GAO Cai-ling |
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| Affiliation: | GAO Cai-ling (Design and Research Institute, Jiuquan Iron ＆ Steel Co., Ltd., Jiayuguan, Gansu 735100) |
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| Abstract: | Differential protection misoperation of generator had a serious effect on the power system. After using microprocessor protection device, it could record faults of the system intellectually and provide first-hand data for analysis of the faults. Based on analysis of the wave shape recorded, it found out that misoperation causes were differences of transient char- acteristics.Some suggestions were offer to the design unit to avoid such accidents. |
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| Keywords: | differential protection misoperation of generator transient characteristic ofcurrent transformer fault wave shape recorded |
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