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| 灭磁时间对发电机-变压器组保护影响的分析与对策 | |
| 引用本文： | 陈水耀,黄少锋,徐灵江,裘愉涛.灭磁时间对发电机-变压器组保护影响的分析与对策[J].电力系统自动化,2011,35(2):97-99. |
| 作者姓名： | 陈水耀 黄少锋 徐灵江 裘愉涛 |
| 作者单位： | 1. 华北电力大学电气与电子工程学院,北京市102206;浙江省电力公司,浙江省杭州市310007 2. 华北电力大学电气与电子工程学院,北京市,102206 3. 浙江省电力公司,浙江省杭州市,310007 |
| 摘 要： | 发电机在灭磁过程中定子仍有电压,维持故障电流.如果灭磁时间长,将影响发电机-变压器组保护的动作可靠性.2起实际案例表明,灭磁速度慢会导致发电机-变压器组保护的动作元件不能及时返回.为消除灭磁过程的影响,分析了发电机-变压器组后备保护、断路器失灵启动保护、断口闪络保护的动作逻辑,有针对性地提出了对策. |
| 关 键 词： | 灭磁时间 发电机-变压器组保护 动作元件 |
| 收稿时间： | 5/26/2010 8:51:07 AM |
| 修稿时间： | 2010/12/14 0:00:00 |
Analysis and Measures of Generator De-excitation Time Influence on Generator-transformer Set Protection |
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| CHEN Shuiyao,HUANG Shaofeng,XU Lingjiang,QIU Yutao.Analysis and Measures of Generator De-excitation Time Influence on Generator-transformer Set Protection[J].Automation of Electric Power Systems,2011,35(2):97-99. | |
| Authors: | CHEN Shuiyao HUANG Shaofeng XU Lingjiang QIU Yutao |
| Affiliation: | CHEN Shuiyao1,2,HUANG Shaofeng1,XU Lingjiang2,QIU Yutao2(1.North China Electric Power University,Beijing 102206,China,2.Zhejiang Electric Power Corporation,Hangzhou 310007,China) |
| Abstract: | There is still some stator voltage to maintain fault current of the generator during de-excitation process.Long de-excitation time may affect the action reliability of generator-transformer set protection.There were two actual cases showing that the actuating components of generator-transformer set protection were not return on time caused by slow de-excitation speed.In order to eliminate influence of de-excitation process,the action logic among generator-transformer set back-up protection,breaker failure s... |
| Keywords: | de-excitation time generator-transformer set protection actuating components |
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