【摘要】 在 6～ 35kV供配电系统 ,中性点经过自动跟踪补偿的消弧线圈接地的谐振接地方式得到了越来越为广泛的应用 .分析了这种电网中发生单相接地时系统电压电流的特点 ,指出了传统的基于零序电流的选线原理存在的问题 ,探讨了应用“S注入法”来解决其接地选线与定位问题的原理和方法 ,导出了有关公式和算法 ,研制出了相应装置 .更多还原

【Abstract】 In 6～35kV distribution networks, the resonance grounding system with automatic track compensated peterson coil is being applied more and more widely. The characteristics of voltage and current in single phase to ground faulty system are analyzed. The problems of traditional line selection principle based on the zero sequence current are point out. The method based on the signal injection is discussed to solve the earth fault line selection and fault point location. The associated discriminant and algorithm are deduced. A corresponding device is developed.更多还原