In the power equipment of modern enterprises, most of the inductive loads are used, which makes the production process generate a large amount of reactive power. Because reactive power not only increases the line loss and equipment capacity of the power system, but also causes fluctuations in line voltage, so it has a serious impact on the power quality and power supply efficiency of the power sup...
1.Introduction of YT Hybrid Static Var Generator System Static Var Generator + Capacitors Hybrid intelligent Reactive Power Compensation device adopts the configuration scheme combining static var generator and switching capacitor/reactor. According to the actual needs of users ,it can implement different reactive power compensation schemes to achieve the best combination of price and effec...
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...
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...
The History Of Reactive Power Compensation If you are in the power industry, you must have heard of reactive power compensation. But you may not know much about it. What is reactive power compensation? We know that the power output of the power grid includes two parts: first, active power: directly consume electric energy, convert electric energy into mechanical energy, thermal energy,...
YT Electric single-phase active harmonic filter(AHF) is improved and upgraded on the basis of three-phase equipment. The A/B/C (L1/L2/L3) three-phase output is the same to achieve the purpose of single-phase compensation. Features of Single-phase AHF The device has a variety of compensation modes: reactive power compensation, harmonics current mitigation, which can be compensat...
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...
Power Factor PF Measurement The control unit calculates: The power factor per phase PFL1, PFL2, PFL3, from the phase active and apparent powers. The total power factor PF from the total active power Ptotal and the total apparent power Stotal: PF = Ptotal / Stotal NOTE: Stot is the vector or arithmetic total apparent power, depending on the setting. This indicator qualifies:...