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中文摘要：
六相输电线路能更好地利用线路所占用的走廊空间,为此,分析了六相输电线路在各种故障情况下故障电流序分量的幅值和相位特点,然后结合故障电流序分量的幅值与相位之间的关系,提出了一种适用于六相输电线路的故障选相元件.理论分析和EMTDC仿真测试都表明,该选相方法不受过渡电阻和线路参数不平衡性的影响,在各种运行条件和故障情况下都能够准确选相.
英文摘要：
In order to utilize right-of-way efficiently of six-phase transmission lines, the characteristics of fault current sequence component on six-phase transmission lines were analyzed. According to the amplitude and phase angle of fault current sequence components, a phase selector for six-phase transmission lines was proposed. The results of EMTDC simulation show that the fault phase selector can be free from the influences of the transition resistance and the unbalance of system parameters, and the method can accurately distinguish the faulted phases under various fault conditions.
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