Influence of resonant coil tuning in the fault current magnitude

This paper analyses the behavior of the resonant grounding method in MV electrical distribution systems, and its influence in the fault current magnitude. It is necessary to take into account several aspects as the specific topology of the system. Thus, a comparative analysis of different systems with different characteristics is presented. The fault current magnitude is studied for different resonant coil tuning values, and the obtained results are compared with the solid grounding method. Finally, using a real MV network, the effect of resonant coil tuning is analysed.