| 500kV线路故障的暂态过程对保护的影响及其对策 |
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| 引用本文： | 沈学斌.500kV线路故障的暂态过程对保护的影响及其对策[J].电力系统保护与控制,1998,26(2):43-46. |
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| 作者姓名： | 沈学斌 |
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| 作者单位： | 湖南省变电修试安装公司 410000 |
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| 摘 要： | 针对55kV岗云线路故障，引起云白Ⅰ、Ⅱ线接地距离装置中的零序功率方向。相差高频保护误动的原因进行了分析，通过模拟试验证实，保护误动原因是由于暂态过程中的非周期分量引起的，根据保护装置原理采取了相应的对策。
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| 关 键 词： | 暂态过程 影响 对策 |
THE INFLUENCE OF 500kV LINE FAULT PROCESS ON PROTECTION AND ITS COUNTERMEASURES |
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| Shen Xuebin.THE INFLUENCE OF 500kV LINE FAULT PROCESS ON PROTECTION AND ITS COUNTERMEASURES[J].Power System Protection and Control,1998,26(2):43-46. |
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| Authors: | Shen Xuebin |
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| Abstract: | The maloperation causes of direchonal zero - phase -sequence power rela and phase differential HF protection of theearth distance protection on Yun - Bai line during 500kV Gang - Yun line fault are analyzed in this paper. It is proved from analogue test that the protection's maloperation results from DC component during the transient process. Some corresponding countermeasun are adopted according to the protection principle. |
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| Keywords: | transient process influence countermeasure |
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