Application Of Terminal Block In Power System

Wiring bar is widely used in power system. As a terminal manufacturer, Chuangqi has been focusing on the customization and production of terminal strip for 18 years. Application of terminal block in power system: electric energy is an essential and important energy in modern social production and people's life. In fact, the harmonic problem existed in the power system for a long time. Before the terminal block power electronic devices were widely used, because the power system harmonics did not have a serious impact on production and life, so it rarely caused people's attention. With the development of power electronic technology, in recent years, in order to improve the power factor, widely use power electronic converters and other reasons to improve the power factor, the harmonic problem becomes more and more prominent in the process of power operation. A large number of nonlinear loads are added to the power supply system, especially the static converter working in the switching mode, which is widely used from low-voltage small capacity household appliances to high-voltage and large-capacity industrial AC / DC converters. As a kind of nonlinear time-varying topology load, it inevitably produces non sinusoidal waveform current and injects harmonics into the power grid. Other nonlinear loads in power supply system, such as electric arc furnace, welding machine, transformer, rotating motor and so on, can also produce harmonics. Even for devices such as TV, fluorescent lamp and battery charger, although the quantity of single device is small, the harmonic component injected into the power supply connection system can not be ignored due to the large quantity. Generally speaking, the harmonic source in the terminal block power system can produce harmonics. The generation of harmonics: some loads present non-linear impedance to AC. At the fundamental frequency, the current is not a sine wave and is distorted. If expressed in the language of Fourier analysis, the current waveform contains some harmonic components.