PENGARUH BESARAN HAMBATAN PEMBUMIAN TITIK NETRAL TERHADAP THD DI GEDUNG KAMPUS

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W G Yoga Ananta Wijaya I G N Janardana I B Gede Manuaba

Abstract

The quality of electric power is influenced by harmonic factors that occur due to an
imbalance in the load on the power system. This load imbalance results in a current at the
neutral point. This amount of current can cause equipment damage and loss of electrical power.
Therefore, an earthing system is needed to parse the current flowing at the neutral point and as
a safety for the electric power system in a building. The objective of this research was to specify
the impact of the grounding resistance value of the neutral point on the current THD on the
MDP installed during peak load conditions at the Electrical Engineering Campus of Udayana
University in Jimbaran. This research method uses simulation with Simulink Matlab software to
determine the effect of neutral point grounding resistance on current THD in areas with
calcareous soils. The simulation outputs indicate that the value of the earth resistance affects
the THDi value in the electrical system. The simulation outcomes represent that when the earth
resistance value is 5 , the THD of the R, S, and T phase currents is feasible at 17.55%, 19.42
%, and 8.86%. Then when the resistance value is lowered by 0.5, the THD of the R, S, T phase
currents is feasible 17.20%, 17.35%, and 8.79%. This shows that more slight the earth
resistance number, the smaller the current THD value.

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How to Cite
ANANTA WIJAYA, W G Yoga; JANARDANA, I G N; MANUABA, I B Gede. PENGARUH BESARAN HAMBATAN PEMBUMIAN TITIK NETRAL TERHADAP THD DI GEDUNG KAMPUS. Jurnal SPEKTRUM, [S.l.], v. 9, n. 1, p. 169-180, apr. 2022. ISSN 2684-9186. Available at: <https://ojs.unud.ac.id/index.php/spektrum/article/view/88767>. Date accessed: 28 mar. 2024. doi: https://doi.org/10.24843/SPEKTRUM.2022.v09.i01.p20.
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