Characteristics of reactive energy Reactive energy is not consumed, it is not useful for the system. Although it does not produce useful work, it is necessary to neutralize or compensate it. The reactive energy is measured in kVArh (Kilo volt-amp reactive hour). Reactive energy is created in devices or machinery that works with motors or transformers powered by the alternating current that reaches...
Background Jiangyin Huaxin Steel Cable Co., Ltd. produces thick zinc-coated prestressed steel wire, stranded wire and other steel wire, bar steel, steel wire metal products and stainless steel sheet materials. Power Quality Problem In the production process, the harmonic content of the power grid is relatively large, the power quality is poor, and the original reactive power compensation eq...
Background The input terminals of switching power supply and ups of Chinatelecom cloud computing Guizhou Information Park data center generate harmonic current, and the final harmonic current is collected on the general busbar. A large amount of harmonic current will cause the following harm to the communication room. Harmonic current will interfere with the communication signals of adjacent condu...
Power Quality Problems in Data Center Due to the uninterrupted power supply of the load in the data center room, a large number of UPS, switching power supplies and inverter air conditioners are used. The input stages of these devices are all three-phase arrangements, which generate a lot of harmonics when used. The switching power supply and UPS equipment first rectify the AC into DC, and then co...
Power Quality Problems The automobile manufacturing industry is a typical heavy industrial industry, and its electricity demand has many characteristics, such as large electric energy demand, low power factor of electrical equipment, many typical nonlinear loads and impact load equipment, and high power quality requirements. Hazards and Influence In the traditional four major automobil...
Power Quality Problems Residential community power grids are low-voltage power distribution networks, generally connected to large power grids by 10/0.4kV transformers. Most of the loads in the grid work at three-phase 480V and single-phase 220V voltage levels, mainly small-capacity loads, such as air conditioners, refrigerators, and televisions. Machines and other household appliances. Most house...
YTPQC-AHF Active Harmonic Filter YTPQC-AHF Active Harmonic Filter is a perfect and comprehensive solution to the power quality issues of power grid, such as harmonics, reactive power and 3 phase load unbalance. YTPQC-AHF which is in parallel to power grid can detect the harmonic wave in power grid in time, generate the reverse-phase compensation current through the converter and dynamica...
What is electricity? All matter in nature is composed of atoms, and each atom is composed of a positively charged nucleus and a certain number of negatively charged electrons, and the electrons revolve around the nucleus at high speed. Under normal circumstances, the positive charge of the nucleus band is equal to the negative charge of the electron band, so the general object is not charged. When...