Noor Afza Surge Arrester View larger

Noor Afza Surge Arrester

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Surge arrester is a designed device that protects electrical devices from damage caused by sudden surge of voltage. A surge arrestor by discharging excess currents caused by sudden surges in the ground does not allow the voltage applied to electrical devices to exceed the threshold level and thus does not damage equipment.

Electrical equipment used in power distribution boards, process control systems, communication systems, street lamps and other industrial systems to protect against sudden and sudden voltage surges (eg affected by lightning near the system) (Surge) This is called a Protection Device (SPD).

In other words, surge arresters (SPDs) are components that protect electrical equipment from the potential dangers of surge voltages.

The mechanism of action of the surge arresters is such that as long as the surge voltage is not present in the system, these components are circuits that do not interfere with the operating process of the system, but if the surge voltage appears in the system and the potential difference between the two surges is reached. As the resistors go above the threshold, these components act as closed paths that, by discharging the surge currents (ground or zero), lower the overcurrent level that occurred in the system and thus other equipment in the system with Such overvoltages will not be encountered and will not be damaged.