Optimum design of substation grounding in a two layer earth structure part: IIIߞStudy of grounding grids performance and new electrodes configuration

In a previous paper [1] the authors have presented the theoretical basis of their computer program which determines grounding electrodes performance. In this last paper of the series presented, a detailed study of the influence of electrodes and earth parameters on grounding performance is analysed for different types of practical electrodes. A brief analysis and discussion of new electrodes configuration is also included.