hotline: 0757-27881773(Hotline) 0757-27830137(Support)
  • Q What is the working principle of active filter? 2017 - 11 - 21
    Working Principle: APF real-time monitoring of system load current through the external sampling transformer, the internal DSP through the calculation, select the harmonic components of the grid, passed through the PWM signal to the internal IGBT devices, control the inverter to produce a size equal to the opposite direction The current is injected into the grid system to compensate the harmonic current for filtering.
  • Q Active filters to enable background monitoring and remote control? 2017 - 11 - 21
    Active filters can be customized according to customer requirements background monitoring system and remote control system.
  • Q Active filters are used in what industries? 2017 - 11 - 21
    Office buildings, medical industry, telecommunications room, public facilities, commercial centers, banking finance, water treatment plants, port industry, petrochemical industry, coal industry, automobile manufacturing and other industries.
  • Q What is the working principle of SVG 2017 - 11 - 21
    Working principle: SVG real-time monitoring of system load current through external sampling transformer, by the internal DSP by calculating and analyzing the reactive power content in the grid, through the PWM signal is passed to the internal IGBT devices, inverter control to meet the requirements of reactive power compensation current Injected into the grid system to achieve the dynamic reactive power compensation function.
  • Q Static SVG compared with the traditional components, what are the advantages? 2017 - 11 - 21
    1. Fast response2. Comes with many protection functions;3 capacitive emotional reactive two-way adjustment;4. Reactive power compensation can also be part of the harmonic compensation function;
  • Q What is harmonic current? How is the harmonic current generated? What harm? 2017 - 11 - 21
    Harmonic current is the non-sinusoidal periodic current function Fourier series expansion, the frequency of the original periodic current frequency integer multiples of the sine of the general term. The harmonic order is the ratio of harmonic frequency to fundamental frequency. (N = fn / f1) Generation: Non-linearity of some equipment and loads in a power system, ie, waveform distortion caused by a linear (proportional) relationship between applied voltage and generated current. Hazard: Causes overheating of the cable, overheating of the transformer, affecting even damage to the trad...
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