Publication: Pengaruh arus harmonik terhadap pembacaan meter kwh analog
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Date
2005-03-01
Authors
Koay, Boon Kit
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Abstract
This final year project deals with effect of harmonic current on reading of analogue kWh meter. In the project, derivation of complex mathematic equation is not
included but analysis is made based on the experimental results. A rectifier (which has adjustable capacitor and adjustable resistor connected in parallel as the load) is connected with kWh meter. The meter is then connected with pure sinusoidal voltage source, 50Hz, 240V. The rectifier represents the non-linear loads we use in daily life. When changing the resistance and the capacitance of the loads, the magnitude of the current and the value of total harmonic distortion will change as well. In the situation where the RMS current is not being changed, the change of active power when total harmonic distortion is increased is being compared. The active power refers to that of theoretical active power and that of sensed by the kWh meter. Besides that, the error percentage of kWh meter reading when total harmonic distortion is increased is studied too. In this project, voltage source is assumed not polluted with harmonic content.