võlakoormuse
Võlakoormuse, also known as "overvoltage" in English, refers to an electrical condition where the voltage in a circuit exceeds the specified rating for the equipment. This can occur due to various reasons such as faults in the power system, lightning strikes, or switching operations. Overvoltage can be categorized into two main types: temporary overvoltage and transient overvoltage.
Temporary overvoltage, also known as sustained overvoltage, lasts for a longer duration, typically from a few
Transient overvoltage, on the other hand, lasts for a very short duration, typically from a few nanoseconds
Overvoltage can have serious consequences for electrical equipment, including damage to insulation, premature aging of equipment,