Abstract
This study presents a comparative analysis of power consumption of the phases of a three-phase prepaid meter on some selected loads. This investigation was stimulated by the insinuations of some users of prepaid meters that there exist some inaccuracies in the measuring capacities of the different phases of some models of three-phase prepaid meters. The methodology involved an experimental measurement of time using non-reactive loads of 360w, 200w and 160w. The other apparatus used were an existing model of a commercial three-phase prepaid meter and a stop watch. The loads were connected to each phase of the three-phase meter at a time and measurements were taken on each of the load categories at 220V supply. The results show that the mean time for the consumption of 0.01kWh at each load categories in the three phases were not equal. From the results it can be concluded that there are variations in the measuring capability of the various phases of a three-phase prepaid meter.
Published Version
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