Overvoltage protectors and lightning arresters are both important devices used to protect electrical equipment, but their working principles and functions are different.
Overvoltage protector function
Overvoltage protector is a device used to protect electrical equipment in electrical systems. It is mainly used to prevent short circuits and overloading of electrical equipment. Overvoltage protectors are reusable and respond quickly to break short-circuit circuits. Overvoltage protectors are generally used in electrical systems with harsh environments, expensive equipment, and important properties.
Lightning arrester function
A lightning arrester is a kind of electrical equipment, mainly used to prevent lightning strikes. A lightning strike refers to damage to buildings and other electrical equipment caused by lightning. It is an electrical component with impedance characteristics that can direct lightning energy to the earth during a lightning strike. Lightning arresters are usually installed high in buildings and connected to the ground through leads.
in conclusion
Therefore, overvoltage protectors and lightning arresters are both devices used to protect electrical equipment, but overvoltage protectors are mainly used to limit and eliminate the harm to equipment caused by overvoltage in the system, while lightning arresters are mainly used to protect electrical equipment and Personnel are protected from lightning strikes. Of course, in some large electrical systems, both devices may be used at the same time to play their respective roles.