作者: E. Viel , H. Griffiths
关键词: Engineering 、 Parametric statistics 、 Return current 、 Electronic circuit 、 Electrical impedance 、 Magnitude (mathematics) 、 Distribution (mathematics) 、 Electrical engineering
摘要: An advanced analytical model is presented for the evaluation of ground return currents at substations fed by both three and single-core cable circuits. The circuit includes accurate treatment an intermediate substation between source faulted substation, unlike Engineering Recommendation EA S.34, which adopts a more simplified approach. Through detailed parametric studies, differences are quantified. effects that variations in key parameters — length type, earth impedances have on magnitude current identified explained.