| 引用本文: | 阳家书,李国友,孙建华.一次110 kV线路单相断线故障的继电保护动作分析[J].电力系统保护与控制,2007,35(22):58-60.[点击复制] |
| YANG Jia-shu,LI Guo-you,SUN Jian-hua.Analysis of relaying operation on a single phase breakoff fault of 110 kV transmission line[J].Power System Protection and Control,2007,35(22):58-60[点击复制] |
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| 摘要: |
| 针对我局110 kV某线路单相断线故障，通过理论公式的推导，证明了网络结构确定的110 kV线路发生单相断线故障时，其零序电流保护动作情况只取决于当时的负荷电流大小，与断线位置无关。另外，通过实际理论计算，验证了此次故障中保护及自动装置的动作行为都是正确的。 |
| 关键词: 断线故障 零序 继电保护 |
| DOI：10.7667/j.issn.1674-3415.2007.22.015 |
| 投稿时间：2007-05-31修订日期：2007-07-09 |
| 基金项目: |
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| Analysis of relaying operation on a single phase breakoff fault of 110 kV transmission line |
| YANG Jia-shu,LI Guo-you,SUN Jian-hua |
| (Qujing Power Supply Bureau,Qujing 655000,China) |
| Abstract: |
| Aiming at the single phase breakoff fault happended in the 110kV Hua-Fu transmission line,some theoretical formula is deduced.It proves that the operation of zero-sequence current protection only depends on the load current and has nothing to do with the fault position,when the wire break fault happens on the 110kV transmission line in a defined network configuration.Theoretical calculation proves that the operation of relaying and automatic equipment are right in the fault. |
| Key words: wire breakoff fault zero-sequence relay protection |
