Power quality refers to the characteristics of electrical power, including voltage, frequency, and waveform, that affect the operation of electrical devices. Typical products for power quality improvement include: Uninterruptible Power Supply (UPS): UPS systems provide backup power during outages and voltage sags, ensuring a continuous and stable power supply to critical loads. Voltage Regulators:...
The peak and effective value of harmonics When discussing the peak of harmonic currents, it's essential to first understand the fundamentals of harmonics. The effective value (RMS value) of a harmonic describes the average power of the harmonic component over one period, reflecting the equivalent extent to which the harmonic causes heating effects in the system. However, the peak of a harmonic (th...
The harm of harmonics to power capacitors mainly includes the following aspects 1. Overcurrent and Overload -Harmonics can cause distortion of voltage and current at the capacitor terminals, especially at specific harmonic frequencies, where capacitors resonate with inductive components in the system, resulting in significant amplification of harmonic currents. Excessive harmonic current causes th...
In Active Harmonic Filter (AHF), the function of an Insulated Gate Bipolar Transistor (IGBT) is to control the compensation currents that are generated to counteract the harmonic currents in an electrical power system. IGBTs are used as the main switching devices in AHFs due to their ability to handle high voltages and currents. Here's a step-by-step explanation of how IGBTs function in an Active ...
The determination of the appropriate compensation capacity is an absolutely crucial aspect in projects where the installation of reactive power compensation devices, such as capacitor banks, Static Var Generator (SVG), or Hybrid reactive power compensation devices, is imperative. For new projects: In new projects that are currently in the design stage, the required compensation capacity (kVAr) can...
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? Electricity from the power grid comes in two types: First, there's active power. This is the electricity that does the direct work, turning into motion, heat, chemicals, or sound to...
Introduction to Low Voltage Reactive Power Cabinet Power distribution equipment forms the backbone of modern electrical systems, efficiently managing and allocating electricity to ensure seamless power supply across various sectors. There are control gadgets that help manage how electricity flows, safety features like circuit breakers to prevent accidents, and measuring tools to check how much pow...
Introduction To Capacitors And Reactors Reactance includes inductive reactance and capacitive reactance, and reactor includes inductive reactance (inductor) and capacitive reactance (capacitor). Inductance has the function of blocking AC and blocking DC, that is, in the AC circuit, the characteristics of inductive reactance are used to pass low-frequency DC and block high-frequency AC. The capacit...
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