Abstract
The genesis of this research work was constituted for the issue of classifying the characteristics of harmonics caused by partial discharge (PD). This work was undertaken based on the hypothesis that the characteristics of the harmonic orders caused by different types of Partial Discharge (PD) can be classified. Experimental work was initially performed and the data obtained from it was validated. This work was then followed by an analysis of the data in order to extract the characteristics of harmonics order and to distinguish information of the harmonics distortion. The findings show that different types of PD produce distinctive harmonics characteristics and distinguishable Total Harmonic Distortion (THD) levels. The outcome of this study show that the hypothesis was precise in stating that different PD types can cause different levels and characteristics of harmonic distortions where in all data obtained were able to be classified. The classification criteria were then tested for accuracy and precision. The results obtained from the classification based on harmonics order characteristics show that 100 % of the PD data tested were identified successfully. DOI: http://dx.doi.org/10.5755/j01.eee.19.9.2545
Highlights
Harmonics are currents or voltages with frequencies that are a multiple of the fundamental power frequency which commonly originates from electrical device or equipment that draws current not proportionally to voltage [1]–[3]
Another important contribution is the analysis on Total Harmonic Distortion (THD) level distinction that is caused by the different types of partial discharge (PD)
This work focused on investigating the distinction of harmonics present during the occurrence of PD
Summary
Harmonics are currents or voltages with frequencies that are a multiple of the fundamental power frequency which commonly originates from electrical device or equipment that draws current not proportionally to voltage [1]–[3]. The significant implication of this work demonstrate the evidence on harmonics present during the occurrence of difference types of PD and have distinct and this distinction can be detected. Another important contribution is the analysis on Total Harmonic Distortion (THD) level distinction that is caused by the different types of PD. This work on harmonics and PD could be used to provide expedient comprehension for elucidation outcome on harmonics problem caused by PD and potentially could be able to deliver preliminary inclusive analysis on issues related to power quality. Corona discharge was mentioned to be detected in transmission lines
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