An accurate design of grounding systems is essential to assure the safety of the persons, to protect the equipment and to avoid interruptions in the power supply. In order to attain these targets, it is necessary to compute the equivalent electrical resistance of the system and the potential distribution on the earth surface in fault conditions. In this paper, a numerical approach for grounding...

The insulated mast scheme for the lightning protection system can be found in a few practical designs. Many advantages over conventional protection system are some times envisaged. However, the technical literature on the analysis of such schemes and further quantification of their protection efficacy is rather scarce. As a first step to address this problem, the present work is taken up and th...

A field experiment was conducted in Eastern Tigray, Ethiopia, during the summer season to determine effects of flower removal and earthing up time on tuber yield quality potato (Solanum tuberosum L.). The comprised three stages five treatments, which were laid out a randomized complete block design (RCBD) 5x3 factorial arrangement with replications. Data collected parameters analyzed using SAS ...

This study aims to investigate the impact of lightning masts placement on underground cables within high voltage substations. While subject discharges near has been covered with open cable runs and wind farms in many papers, this focuses events substations considering associated effective zones, which were not available literature. Substations built areas prone activity experience frequent that...