jännitysvaihtelun
Jännitysvaihtelu refers to the fluctuation or variation in electrical voltage within a power system. This phenomenon is a common occurrence in power grids and can arise from various sources. Load changes, where the demand for electricity increases or decreases, are a primary driver of jännitysvaihtelu. When many devices are switched on simultaneously, the load increases, drawing more current and potentially causing a temporary voltage drop. Conversely, when loads are reduced, the voltage may rise.
Another significant cause is the intermittent nature of some renewable energy sources, such as solar and wind
Jännitysvaihtelu is important to monitor and manage because excessive or rapid voltage fluctuations can negatively impact