Introduction Power quality refers to the characteristics of electric power supplied to end users, particularly its ability to ensure the proper functioning of electrical devices. With the increasing use of sensitive equipment such as programmable logic controllers, variable frequency drives (VFDs), and computers in modern industries, the tolerance for power disturbances such as voltage dips, swell...
Abstract: Utility power system harmonic problems can often be solved using a comprehensive approach including site surveys, harmonic measurements, and computer simulations. This case study presents the results for a commercial facility harmonic evaluation. The simulations were completed using the PSCAD program. The analysis evaluates the effects of transformer connections to determine the har...
Harmonics & VFDs: Causes, Solutions, and Key Insights How VFDs Cause Harmonic Issues Variable Frequency Drives (VFDs) are commonly used to control motor speed and optimize energy consumption in industrial systems. However, VFDs work as nonlinear loads. This means they draw currents that are not smooth, even if the supply voltage is a perfect sine wave. This happens because VFDs change AC power...
Clean Power Solutions for Modern Office Towers The power networks in today’s skyscrapers and large office buildings face increasingly complex challenges. From nonlinear loads like elevators, LED lighting, and IT systems to harmonic pollution affecting the power supply's quality, maintaining optimal power quality is critical. This blog explores how the YTPQC Active Harmonic Filters effectivel...
Mitigating Harmonics to Maintain Data Center Reliability Data center operations depend heavily on reliable electric power, as even minor disruptions in power quality can significantly affect performance and stability. Industry studies show that approximately 33% of all data center outages result from power quality issues. These problems cause costly downtime. They can also lead to data corruption,...
I. INTRODUCTION A small entity of electrical network known as Microgrid provides secure and reliable energy supply to the critical loads of communities. It also provides a sustainable and self dependent energy supply to communities in remote area where there is no access or facility for main grid power system. MG should be capable of operating either in on-gird or off-grid mode. MG incorporates se...
How to Select the Solution for Power Quality Issues Poor power quality can lead to significant costs. Not only can it result in power losses, but damaged equipment can be even more expensive, especially if it causes manufacturing downtime. Often, power quality issues aren’t immediately obvious to the untrained eye. Common problems like low power factor, voltage imbalances, inrush-induced sag...
Guide to Selecting Active Harmonic Filters In the realm of modern electrical power systems, the significance of active harmonic filters (AHFs) cannot be overstated. They are the guardians of power quality, ensuring that electrical equipment operates smoothly by effectively counteracting harmonic distortions. When it comes to making a purchase decision for an AHF, a multitude of critical fac...