Power utility always get blame if there are power interruption occurred in residential areas. Many
of the residential customers are unaware, that is electrical appliance itself one of the reason that
contribute to power quality problem. Effects of appliances a/so can harm other sensitive equipment
as we/las electrical distribution system. This paper studies the effects of the appliances to power
quality. Appliances that are used in the study are personal computer, fluorescent light, iron, LCD
monitor, motor & driver, television, hand drill, laptop and jig saw. Waveform of the phase voltage
and current, power components, and distortion of voltage and current for all appliances have been
recorded and analyzed using Reliable Power Meter. In this paper concepts of power factor and
effects of harmonics are reviewed. Subsequently voltage and current waveform, voltage total
harmonic distortion, current total harmonic distortion and power factor are analyzed and discussed.
