The generation and impact of harmonic problems Harmonics in electrical systems are caused by nonlinear components, which distort the sine wave of the electrical current. As power electronics become more common, voltage distortion, or harmonics, also increases. Devices like variable frequency drives (VFDs), uninterruptible power supplies (UPS), and inverters introduce different types of harmonics i...
Managing Non-Linear Load Harmonics with Active Power Filters Introduction Non-linear loads are becoming a significant challenge in today’s electrical systems. These loads cause the current to be non-sinusoidal, even when connected to a sinusoidal voltage source. This non-sinusoidal current contains harmonic currents that interact with the power distribution system, leading to v...
What is Active Load Balancer (ALB)? The Active Load Balancer (ALB) is an effective solution to solve power quality issues caused by waveform distortion, low power factor, voltage variations, voltage fluctuations, and load imbalances. It is suitable across various sectors and applications. The ALB is a high-performance, compact, flexible, modular, and cost-effective type of Active Power Filter (APF...
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...
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...
Single-Phase vs. Three-Phase Power Alternating current (AC) power supplies most of the electricity to homes and businesses. Single-phase and three-phase power supplies are two types of alternating current with different uses. People mainly use single-phase in homes and small businesses. Three-phase is common in industries and larger commercial places that need more power. Therefore, for businesses...
Capacitive Load Compensation Capacitive Load Compensation refers to the use of capacitors to counteract the effects of inductive loads in electrical systems, improving power factor and overall efficiency. Here are some key points about capacitive load compensation and related products: 1. Purpose of Capacitive Load Compensation Improve Power Factor: By introducing capacitors into the system, the r...
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