Analysis For Influence Of Harmonic Wave In Electric Distribution Network And The Administrate Measures

In recent years, with the development of nonlinear load of distribution network, especially with the increase of differentiation of electric end products and uneven product quality, the power system becomes to be polluted, and power supply units break down with the service life reduced and even burn down, which adversely affect working efficiency. Thus there's always increased concern about how to control harmonic source. Based on field monitoring and management experiences of harmonic wave, the author analyzes the cause of harmonic wave, the device type causing harmonic source and serious consequences as distribution network equipment are harmed by harmonic source. This article introduces the technique adopted by local distribution network to prevent harmonic source and new process and technology adopted on spot of power distribution, and also analyzes the method to decrease the influences that harmonic wave has in powered device and to improve power supply quality.