Electric power quality is an aspect of power engineering that has been with us since the inception of power systems. However, the topics in power quality have only attracted interests over the past few years because of the increasing usage of electronically controlled equipments. The power quality problem causes interruptions to the sensitive electrical or electronic equipment and results in very expensive consequences. Wavelet techniques will be studied in this paper for analysing monitored power quality data. A case study based on the measurement of a University of Queensland site was studied using the proposed wavelet approach
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