A Model for Verification of High Neutral-to-Ground Voltage (NTGV) in Educational Buildings

Mohd Ezwan Mahadan; Ahmad Farid Abidin; Mohd Abdul Talib Mat Yusoh; Muhammad Asraf Hairuddin; Rijalul Fahmi Mustapa

doi:10.15866/iree.v18i3.23175

A Model for Verification of High Neutral-to-Ground Voltage (NTGV) in Educational Buildings

Mohd Ezwan Mahadan⁽¹⁾, Ahmad Farid Abidin^(2*), Mohd Abdul Talib Mat Yusoh⁽³⁾, Muhammad Asraf Hairuddin⁽⁴⁾, Rijalul Fahmi Mustapa⁽⁵⁾

^(*) Corresponding author

Authors' affiliations

DOI: https://doi.org/10.15866/iree.v18i3.23175

Abstract

There are various factors that can cause the rise of Neutral-To-Ground Voltage (NTGV) in an educational building. However, based on the pattern of the recorded NTGV, it is difficult to identify the possible factors that contributed to the event. This situation could lead to the wrong decisions to mitigate the corresponding problem. Thus, the main objective of this paper is to verify the high NTGV events based on a model of the educational building’s three-phase four-wire system. In this study, the developed educational building electrical network model is integrated with the model for events in a MATLAB/SIMULINK environment. According to the findings, high NTGV events in the building were caused by lightning and ground fault activities. This shows that the model is accurate and suitable to be used for analysing the high NTGV events in an educational building if they are detected.
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Keywords

Power Quality (PQ); Neutral-to-Ground Voltage (NTGV); Educational Building; MATLAB/SIMULINK

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References

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