College of Engineering

A master thesis was discussed in Department of Electrical Engineering / College of Engineering / University of Mosul entitled ” Potential Distribution in Non-Homogeneous soil due to Electrical Faults and its Effects on the Grounding System ” submitted by postgraduate student (Saleh Khadar Ahmad)on Sunday,22/08/2021.The thesis presented the most important methods used in designing grounding systems in Homogeneous soils by studying the distribution of electrical stresses resulting from fault currents depending on the capabilities of programs ETAPAndCYMGRDAnalytical, by a detailed presentation of the distribution of electrical stresses for the grounding system at the site of Al-Batool Hospital within the right medical complex of Mosul city.The thesis emphasized two important aspects that have the greatest impact in improving the work of the earthing system and at the lowest economic costs. The first aspect is theuse ofchemical treatments for the soil around the grounding rods withbentonite andclay soil.The second aspect is the use of a new approach represented by theuse ofa main grounding system consisting of a specified number of rods and copper conductors fixed in the soil to be connected in parallel to the reinforcement network of theconcretefoundations. It gave exceptional results in the percentages of improving touch stresses and improving the values of grounding resistance.The thesis also showed an important aspect represented in maintaining the integrity of the foundations from the risk of failure and cracking due to the high values ​​of the fault currents .The discussion committee was chaird by Prof. Dr. Abdul Ghani AbdulRazzak AbdulGhafoor and membership of Assist. Prof. Dr. Omar Sharaf AL-Deen Yehya AL-Yozbaky, and Assist. prof. Dr. Ali Nathim Hamoody, and Dr. Riyadh Zaki Sabry (supervisor).