A surge arrester, also known as a lightning arrester, is a device designed to protect electrical systems from overvoltage transients or surges caused by lightning strikes or other electrical disturbances. These voltage surges can cause significant damage to sensitive electronic equipment, such as computers, televisions, and other electronics, leading to costly replacements and downtime.
A Surge arrester is typically installed between a conductor and a ground connection and works by diverting the surge current to the earth before it can reach and cause damage to the electrical system. The device can handle high amounts of energy and reduce the peak voltage of the surge, protecting the electronic equipment and ensuring the system's continuity.
There are different types of surge arresters, including Silicon Carbide (SiC) and Metal Oxide Varistor (MOV). However, the most widely used type today is the Zinc Oxide Arrester (ZnO).
Zinc Oxide (ZnO) technology has been predominant since the 1980s due to its superior protection capabilities and longer service life over other technologies. ZnO-based surge arresters have a higher energy absorption capacity and faster response time than other technologies, making them more effective in protecting sensitive electronic equipment against voltage surges. They also have a self-healing capability, whereby they recover from minor overloads, maintaining their protective capabilities.
ZnO-based surge arresters are typically used in various electrical applications, including power distribution equipment, telecommunication systems, and industrial processes, providing effective protection against voltage surges and interruptions.
In conclusion, surge arresters, particularly Zinc Oxide Arrester (ZnO), play a crucial role in electrical systems' protection against voltage surges caused by lightning or other electrical disturbances. The technology has evolved to become more reliable, effective, and efficient in ensuring the continuity of power distribution and electronic equipment. Contact us today for more information on the importance of surge arresters and how we can help you protect your electrical systems.