Power Quality Knowledge Base

Voltage Sags (Dips) and Swells in power quality measurements Voltage sags (also known as voltage dips) and swells (or surges) are the most common types of power quality disturbances. Every electrical system or equipment is designed to work at a specific voltage rating and changes in voltage below or above the defined low and high [...]

Voltage Flicker and Voltage Fluctuations in power quality measurements Flicker refers to the perceived fluctuation in light intensity that occurs when voltage fluctuations impact lighting systems. It is often caused by rapidly changing loads in the electrical network. It can be visually discomforting and can affect the performance and lifespan of sensitive equipment, especially in [...]