alijännityksen
Alijännitys, often translated as undervoltage or voltage sag, is a temporary reduction in the AC electric power system's voltage. This occurs when the voltage on one or more phases drops below a specified threshold for a short duration, typically ranging from half a cycle to a few seconds. Alijännitys is distinct from a complete power outage, where the voltage drops to zero.
The causes of alijännitys are varied and can include starting large electric motors, short circuits in the
The effects of alijännitys can range from minor to significant. Sensitive electronic equipment, such as computers,