| CD-10型发电机差动保护误动作原因分析及对策 |
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| 引用本文： | 王友明,丁志红,花雨. CD-10型发电机差动保护误动作原因分析及对策[J]. 华中电力, 2001, 14(6): 33-35 |
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| 作者姓名： | 王友明 丁志红 花雨 |
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| 作者单位： | 妈湾发电总厂, |
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| 摘 要： | 根据故障录波图对穿越性故障电流进行了定量计算，对差动回路暂态不平衡电流、差动继电器最小动作电流、最小制动电流以及制动系数的实际整定配合进行了分析。结合事故后检查的差动继电器特性，分析说明了该保护误动的真正原因。提出了相应的对策。
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| 关 键 词： | 发电机 差动保护 误动作 CD－10型 电力系统 |
| 文章编号： | 1006-6519(2001)06-0033-03 |
Cause Analysis of CD-10 Generator Differential Protection Misoperation and Its Countermeasures |
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| WANG You-ming,DING Zhi-hong,HUA Yu. Cause Analysis of CD-10 Generator Differential Protection Misoperation and Its Countermeasures[J]. Central China Electric Power, 2001, 14(6): 33-35 |
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| Authors: | WANG You-ming DING Zhi-hong HUA Yu |
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| Abstract: | According to the failure current oscillograph and quantitative calculation of exterior fanlt current.the tran-sient unbalance current of the differential circuit,the minimum operating current,the min imum restraint cur rent and the percentage restraint factor have been analyzed in this paper.Combined the checked characteristics of the CD-10defferential relay after its misoperation,the real cause of this differential pro tection misoperation and its countermea-sures are proposed. |
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| Keywords: | Protection misoperation transient unbalance current the minimum restraint current countermeasures. |
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