| 外加电源方式100%定子接地保护的拒动与误动问题 |
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| 引用本文： | 贺儒飞. 外加电源方式100%定子接地保护的拒动与误动问题[J]. 四川电力技术, 2005, 28(1): 29-31 |
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| 作者姓名： | 贺儒飞 |
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| 作者单位： | 广州蓄能水电厂,广东广州,510950 |
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| 摘 要： | 分析了100％定子接地保护外加电源的频率对保护灵敏度的影响及其导致100％定子接地保护拒动的原因。此外还分析了特殊工况下，定子电流频率与100％定子接地保护误动的关系。并针对这两种情况分别提出了解决方案。
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| 关 键 词： | 发电机定子 接地保护 故障 措施 |
| 文章编号： | 1003-6954(2005)01-0029-03 |
| 修稿时间： | 2004-11-13 |
Miss Operation and Malfunction Problem of Protection against Stator Ground 100% with Applied Power Source |
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| He Rufei. Miss Operation and Malfunction Problem of Protection against Stator Ground 100% with Applied Power Source[J]. Sichuan Electric Power Technology, 2005, 28(1): 29-31 |
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| Authors: | He Rufei |
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| Abstract: | The effect of the frequency of applied power source for protection against stator ground 100% on protection sensitivity and the reason caused the miss operation of protection against stator ground 100% have been analyzed. Besides, the relationship of stator current frequency and miss operation of protection against stator ground 100% in exceptional condition has been analyzed as well, and solutions corresponding to these two conditions have been proposed respectively. |
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| Keywords: | generator stator grounding protection failure measures |
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