Measurement and Analysis of Individual Voltage Harmonics in Three Phase Power Supply

Because of aged, unhealthy and non-linear loads harmonic currents and voltages are generated in the distributed system which further affects the life of the linear loads and decrease overall efficiency of the industry. Because of the incremental use of nonlinear loads current harmonics intend to generated in power line and it increase the heat of the wire which further increase the harmonics and this process continues which makes a heavy degradation in efficiency and average power factor of the industry goes down which makes consumer to pay more amount of money in term of penalty from the utility company. The current harmonics flow in the distribution system which generates voltage harmonics which results into power harmonics. This paper explains the various methods and their obtained results to find individual harmonics and total harmonics distortions. Measurement of individual harmonics is necessary as it specifies the type of nonlinear load which is disturbing the transmission line and further finding root cause the distortions can be reduced to a certain level. Proper wiring, Sufficient grounding can reduce the harmonics effect on the power distribution system. This paper describes comparison of measurement and analysis of individual harmonics of the power system.