The working principle and function of arrester

Arrester is an electrical device that can release lightning or take into account the overvoltage energy of the power system operation, protect the electrical equipment from instantaneous overvoltage, and can intercept the continuous current, so as not to cause the system to short circuit to ground. A lightning protection device connected between the wire and the ground is usually connected in parallel with the protected device. The surge arrester can effectively protect the power equipment. Once an abnormal voltage occurs, the surge arrester has a role and plays a protective role. When the voltage value is normal, the surge arrester quickly returns to its original state to ensure the normal power supply of the system.

Arresters can be used not only to protect high atmospheric voltages, but also to protect operating high voltages. If there is a thunderstorm, high voltage will appear in the lightning and thunder, and the electrical equipment may be dangerous. At this time, the lightning arrester will work to protect the electrical equipment from damage. The biggest and most important role of the arrester is to limit the overvoltage to protect electrical equipment. Lightning arrester is a device that allows lightning current to flow into the ground so that electrical equipment does not generate high voltage. The main types are tube type arrester, valve type arrester and zinc oxide arrester. The main working principle of each type of arrester is different, but their work is essentially the same, all to protect the equipment from damage.