| 距离保护远后备功能可靠性分析 |
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| 引用本文： | 许德操,袁志毅,吴永刚.距离保护远后备功能可靠性分析[J].青海电力,2009,28(3):1-3,19. |
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| 作者姓名： | 许德操 袁志毅 吴永刚 |
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| 作者单位： | 青海省电力公司电力调度中心,青海,西宁,810008 |
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| 摘 要： | 为了对110 kV长线路末端变压器起到远后备功能,部分保护设备采用圆阻抗距离继电器和四边形距离继电器相或构成距离继电器。文章从原理分析、动模实验对此类保护功能可靠性进行试验研究,试验结果证明,110 kV线路末端采用Y△/类型接线的变压器低压侧故障时能够正确动作,起到远后备的功能。
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| 关 键 词： | 动模试验 距离继电器 远后备 |
Reliability Analysis of Distance Protection Remote Backup Function |
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| XU De-cao,YUAN Zhi-yi,WU Yong-gang.Reliability Analysis of Distance Protection Remote Backup Function[J].Qinghai Electric Power,2009,28(3):1-3,19. |
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| Authors: | XU De-cao YUAN Zhi-yi WU Yong-gang |
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| Affiliation: | XU De-cao,YUAN Zhi-yi,WU Yong-gang |
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| Abstract: | As the remote backup protection for the transformer on the end of 110kV long transmission line, parts of protection structure adopt distance relay with circular characteristics and quadrangle characteristics composing the distance relay, the paper makes test and research on the reliability of the protection based on dynamic simulation and principle analysis. The test result proved that the transformer on the end of 110kV transmission line adopts Y/△ wir- ing obtains accurate action when the low voltage side fault, and it will implement remote backup function. |
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| Keywords: | dynamic simulation distance relay remote backup protection |
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