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Survey of Harmonics Measurements in Electrical Distribution System of a Technical Institution

Growing use of non-linear loads give rise to power pollution in the three-phase four-wire distribution system. This has already become an alarming situation in an engineering institute where quality power is an essential requirement.To ensures quality power it is necessary that a harmonic study is carried out to identify the details of pollution that is polluting sources, the parameters or quantities they pollute in each instance. The paper includes a harmonic survey in the Electrical machine lab of National Institute of Technology, Agartala where various non-linear devices are used everyday. The level and type of the harmonics present in the system are identified. According to the measurement and analysis, the effect of most prominent harmonics are found out that could cause problem in the power quality. The harmonic survey is performed to improve the power quality.