Citation

Muhammad, Usman and Aman, Fazlul and Mohamad Nor, Normiza (2023) Effect of Localised Soil on the Measured and Calculated Resistance Values. In: 2023 4th International Conference on High Voltage Engineering and Power Systems (ICHVEPS), 6-10 August 2023, Bali, Indonesia.

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Abstract

In designing the ground electrodes, soil resistivity is the first parameter to be assessed in the design of grounding systems. The soil resistivity profile determines the conductivity of the soil in a large area, however localised soil around the ground electrode can be expectedly different from the representation of the conductivity of the soil mass. Hence, differences between the measured and calculated ground resistance at low magnitude of voltage and current, and at low frequency, RDC values are likely to be expected. In IEEE Standard 81, several possible reasons were listed that are thought to be the causes of differences between the measured and calculated ground resistance values, however limited study was found in identifying the main cause of these differences. Localised soil around the ground electrode has also not been clearly considered in the literature as one of the main reasons that contribute to differences in measured and calculated RDC values. For this reason, this paper attempts to address this shortfall. Firstly, a compilation of the previously published work on the measured and computed RDC values is presented, where the percentage differences between the measured and calculated RDC can be seen for various RDC values. Secondly, the effect of localised soil surrounding the ground electrode, which was done by adding other types of soil around the ground electrodes will be investigated. Percentage differences between calculated and measured RDC values can be observed for the electrode installed in natural and when other types of soil were added surround the ground electrode.

Item Type:	Conference or Workshop Item (Paper)
Uncontrolled Keywords:	computed ground resistance, ground resistance value, localised soil, measured resistance value
Subjects:	Q Science > QD Chemistry > QD450-801 Physical and theoretical chemistry
Divisions:	Faculty of Computing and Informatics (FCI)
Depositing User:	Ms Nurul Iqtiani Ahmad
Date Deposited:	06 Dec 2023 08:35
Last Modified:	06 Dec 2023 08:35
URII:	http://shdl.mmu.edu.my/id/eprint/11901

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