Netspændingskvalitet

Netspændingskvalitet, often translated as power quality, refers to the deviation of the voltage from its ideal sinusoidal waveform. An ideal voltage supply is characterized by a constant magnitude, zero frequency deviation, and a pure sinusoidal shape. Deviations from this ideal can manifest as voltage sags, swells, interruptions, harmonics, and flicker, among other disturbances. These issues can originate from various sources, including the operation of industrial equipment, switching transients in the grid, and the increasing penetration of renewable energy sources. Poor power quality can have significant negative consequences for electrical equipment, leading to malfunctions, premature aging, and reduced efficiency. For sensitive electronic devices, even minor fluctuations can cause data loss or system crashes. Maintaining good netspændingskvalitet is therefore crucial for the reliable and efficient operation of modern electrical systems. Standards and regulations exist in many regions to define acceptable levels of power quality and to guide utilities and consumers in mitigating potential problems.