Although fault component current phase selector has excellent performance for single transmission lines, it may select unwanted phase for cross-country faults in double-circuit lines on a same tower.
相电流差突变量选相元件在单回线故障中具有良好的选相性能，但在同杆双回线跨线故障中可能误选相。
By analyzing the zero-sequence full current for single-phase grounding fault in isolated neutral distribution network, a new approach to determine the faulty transmission line is obtained.
通过对中性点不接地配电网单相接地故障时零序全电流的分析，得出了利用零序全电流的大小和方向进行故障选线的新方法。
The method for fault location of the parallel transmission lines on the same tower based on single-terminal current is proposed in this paper.
提出了一种基于同杆双回线单端电流量的故障测距方法。在故障状态下，双回线可以分解成同向网和环流网，其中环流网只与双回线有关，且两端电压为零。
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