PMT840004F

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Gas discharge tube (GDT) Arresters provide overvoltage protection for electrical power systems, by limiting surge voltage. The PMT840004F Arrester is a high quality, reliable high voltage GDT arrester, designed to provide excellent surge current protection. This arrester is suitable for use in a variety of voltage levels, from high voltage distribution to extra-high voltage transmission systems.

The PMT840004F Arrester is designed to provide effective protection against transient overvoltages caused by lightning, switching surges and atmospheric disturbances. When the Arrester is subjected to a high voltage surge, it will activate its arc discharges and short-circuit the high voltage, dissipating the voltage energy. This reduces the voltage between the arrester leads, preventing damage to adjacent equipment.

The PMT840004F Arrester is designed for straightforward installation and maintenance. A single unit can be used to protect primary feeders or small networks, and it can be mounted directly to a substation wall. Additionally, this Arrester features a highly visible status indicator and has a long operating life, with relatively low maintenance requirements.

The working principle of the PMT840004F Arrester is based on the principle of gas discharge tubes. Gas discharge tubes are gas filled tubes containing electrodes that are used to direct a powerful electric current. When the voltage between the electrodes of the tube becomes too high, an electric arc is triggered, which causes an ionization of the surrounding gas. This ionization of the gas causes the voltage between the electrodes to drop, thus limiting the voltage to a safe level.

The PMT840004F Arrester is specifically designed for use in high voltage applications, such as transmission and distribution systems. This Arrester is designed with a wide range of features, such as adjustable voltage thresholds, current limiting, and automated shutdown when overloaded. The Arrester can also be used as an additional source of current for current-limited applications, such as computer and communication systems.

The PMT840004F Arrester is a reliable, cost-effective solution for protecting power systems from overvoltage conditions. It is easy to install and requires minimal maintenance. The adjustable voltage threshold, current limiting, and automated shutdown features enable the Arrester to provide effective protection from transient overvoltage conditions.

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