Shorted fault phase selection 短路故障选相
synthetic fault phase selection 综合选相元件
A new fault phase selection (FPS) relay is put forward. by which fault phase selection is accomplished throughdistinguishing the fault features of modulus maxima of wavelet transform of transient current travelling waves (TCTW).
构造了一个新型行波故障选相元件，其基本原理是计算模量初始电流行波在小波变换下的模极大值，根据3个模量的故障特征选择故障相。
参考来源 - 基于小波变换的行波故障选相研究第2部分仿真试验结果The fault phase selection includes current phase selection and impedance phase selection, and the fault location contains current direction element and impedance direction element, and then the idiographic method is given.
其中,故障选相采用序电流选相和阻抗元件选相两种,故障定位采用零负序电流方向元件和阻抗方向元件。 文中详细分析了各种选相元件和故障定位元件的工作原理和保护判据,并给出了具体的故障选相和故障定位方法。
参考来源 - 新型广域网后备保护研究·2,447,543篇论文数据，部分数据来源于NoteExpress
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