| 一起典型的保护误动作事故分析 |
| |
| 引用本文： | 卢天盛,马彦伟,李萍萍. 一起典型的保护误动作事故分析[J]. 四川电力技术, 2011, 34(3): 42-44 |
| |
| 作者姓名： | 卢天盛 马彦伟 李萍萍 |
| |
| 作者单位： | 成都电业局,四川成都,610021 |
| |
| 摘 要： | 对于微机型继电保护装置,用于零序功率方向判别都是采用自产零序电压和电流,虽然避免了采用外接零序电压电流可能出现的极性错误,但同样可能由于二次回路接线错误导致误判方向。以一实例说明了二次接线错误导致的保护误动作事故,对类似电网安全稳定运行提出了针对性的建议。
|
| 关 键 词： | 零序 互感 负序 |
Analysis on a Typical Accident of Protection Misoperation |
| |
| Lu Tiansheng Ma Yanwei Li Pingping. Analysis on a Typical Accident of Protection Misoperation[J]. Sichuan Electric Power Technology, 2011, 34(3): 42-44 |
| |
| Authors: | Lu Tiansheng Ma Yanwei Li Pingping |
| |
| Affiliation: | Lu Tiansheng Ma Yanwei Li Pingping |
| |
| Abstract: | For microcomputer-based relay protection device,self-produced zero sequence voltage and current are adopted for the discrimination of zero sequence power direction.It avoids the possible polarity mistakes when connecting with zero sequence voltage current,but the misjudgment of direction also may be caused by the wrong secondary circuit wiring.Taking the accident of protection misoperation caused by the wrong small wiring for example,the corresponding suggestions are put forward for the safe and stable oper... |
| |
| Keywords: | zero sequence mutual induction negative sequence |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
