The effect of transformer sizing and load variability on harmonics generated in a Nigerian university
Department of Electrical and Electronics Engineering, Federal University of Technology, Akure, Nigeria.
Research Article
World Journal of Advanced Research and Reviews, 2024, 24(02), 073–078
Publication history:
Received on 18 September 2024; revised on 26 October 2024; accepted on 29 October 2024
Abstract:
This study investigates the impact of transformer sizing and load variability on the generation of harmonics in the distribution network of the Federal University of Technology, Akure (FUTA), Nigeria. The analysis focuses on Total Harmonic Distortion Voltage (THDv) at various Points of Common Coupling (PCCs) connected to different transformer capacities. Results indicate that PCCs linked to 500 kVA transformers exhibit THDv values ranging from 0.9% to 21.05%, generally falling within acceptable limits, albeit with some outliers. In contrast, PCCs associated with 200 kVA transformers display a broader and more concerning THDv range, from 0.65% to 65%. Additionally, the study reveals a significant increase in THDv at night compared to daytime, attributed to the higher prevalence of non-linear loads during off-peak hours. These findings highlight the critical role of transformer sizing and load patterns in managing harmonic distortion, underscoring the need for effective power quality management strategies within university distribution networks.
Keywords:
Harmonic Distortion; Transformer Sizing; Harmonic Analysis; Load Variability
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Copyright © 2024 Author(s) retain the copyright of this article. This article is published under the terms of the Creative Commons Attribution Liscense 4.0