Dynamic Voltage Restorer: The Guardian of Power Systems In modern industrial and commercial applications, maintaining power quality is crucial for the reliable operation of sensitive equipment. One of the major challenges in power quality is voltage sags and dips, which can disrupt operations and cause equipment malfunction. Enter the Dynamic Voltage Restorer (DVR) – a critical piece of equi...
Static Var Generator (SVG) and Energy Saver are both technologies aimed at improving the efficiency of electrical systems, but they work in different ways. However, when used together, they contribute to significant energy savings and improved power quality. Here’s how each operates and how they complement each other: 1. Static Var Generator (SVG) · An SVG or ASVG is a ...
Introduction Harmonics in power systems have become a significant concern due to the widespread use of semiconductor-based loads, such as variable frequency drives (VFDs) and line-commutated DC drive systems. These harmonics can lead to various power quality issues, affecting both equipment performance and system reliability. Harmonics are integer multiples of the fundamental frequency. For exampl...
Voltage Unbalance: Causes, Impacts, and Mitigation Strategies This state of imbalance not only affects power quality but can also damage equipment and reduce energy efficiency. For example, using SPC (Static Phase Converter) for dynamic adjustment within the distribution station can effectively improve this situation; at the same time, users should also pay attention to reasonable load configurati...
1. Summary Due to the advantages of simple control and low cost of uncontrolled rectifying converter, it is widely used in switching power supply, frequency converter and other equipment. However, this kind of converter will inject a large amount of harmonic current into the power grid, and increasingly become the most important harmonic source in the power grid. Most of the frequency converters o...
What is Total Harmonic Distortion & How AHF Can Help In this blog post, we will explore what THDi is and why it is important. We will also discuss how Active Harmonic Filters (AHFs) can help reduce problems caused by harmonics. What is Total Harmonic Distortion (THDi)? Total Harmonic Distortion (THDi) represents the distortion in an electrical current waveform because of the presence of harmon...
How does Static var generator reduce kva demand? A Static Var Generator (SVG) reduces kVA demand through the following mechanisms: 1. Dynamic Reactive Power Compensation Real-Time Adjustment: SVG provide real-time reactive power support by injecting or absorbing reactive power (kVAR) as needed. This dynamic response helps maintain voltage levels, reducing the overall kVA demand. 2. Improved Power ...
Harmonics: Not a Problem Unless They Become One Harmonics in modern power systems are now considered “the new normal” due to the widespread use of non-linear loads. While harmonics can lead to issues such as overheating, overloads, and resonance, they don’t always pose immediate problems. The key is understanding when harmonics are actually causing harm. When Should You Ac...
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