kytkentäylijännitteiden
Kytkentäylijännitteet, often translated as switching overvoltages, refer to transient voltage spikes that occur in electrical power systems during switching operations. These operations include the energization or de-energization of lines, transformers, capacitors, or reactors, as well as fault clearing by circuit breakers. When a circuit is suddenly opened or closed, stored energy in inductive and capacitive elements can be released, leading to rapid fluctuations in voltage.
These overvoltages can be significantly higher than the normal operating voltage of the system. Their magnitude
The primary concern with switching overvoltages is their potential to damage or degrade electrical insulation. If
Mitigation strategies for switching overvoltages include using surge arresters, which are devices designed to limit overvoltage