2056-40-ALF

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Gas Discharge Tube Arresters (GDT) are devices that are used to protect electronic equipment from high voltage electrical transients or electrical disturbances. These transients are typically caused by lightning and other forms of extreme weather. In addition, these devices can be used for additional protection, such as for circuit protection or filter inductors in sensitive signal lines. A GDT is essentially an electronic pressure relief valve that can be used to keep high-voltage surges from damaging or destroying a circuit.

The 2056-40-ALF is a special type of GDT specifically designed to work with medium voltage applications. This type of arrester is suitable for providing medium voltage overvoltage and undervoltage protection to equipment used in power network applications, such as transformers, switchgear, capacitors, and other sensitive components. The 2056-40-ALF is a type-1 arrester, meaning it is designed for installation on insulated power networks and is suitable for both normal and operating conditions.

The 2056-40-ALF features a peak impulse current of 50 kA (8/20 us), a nominal DC residual voltage of 40V, a long-term current rating of 22 kA (8hrs/yr for 20 years), and a response time of 0.1ms. The 2056-40-ALF has a low leakage current rating of 0.003 mA and can short-circuit higher voltage surges or arcs before they can cause damage to sensitive components. This arrester is designed to be highly reliable and to provide long-term protection from electrical transients.

The 2056-40-ALF is designed to achieve the desired level of overvoltage and undervoltage protection at the point of installation. This is achieved by its working principle of simultaneous overvoltage limiting and circuit interruption, with the arrester reacting and limiting the voltage when it detects a fault. The arrester will then open, disconnecting the equipment from the high voltage and thus protecting it from further damage.

In addition, the 2056-40-ALF employs a range of other technologies which help to provide protection from electrical disturbances. These include temperature compensated sputtering technology for a strong film, an advanced surge absorption design for single-stage protection, and a self-diagnostic LED for monitoring arrester status.

In summary, the 2056-40-ALF is a type-1 GDT designed to provide medium voltage overvoltage and undervoltage protection to sensitive equipment in power networks. It has a peak impulse current of 50 kA (8/20 us), a nominal DC residual voltage of 40V and a long-term current rating of 22 kA (8hrs/yr for 20 years). The 2056-40-ALF is designed to achieve the desired level of overvoltage and undervoltage protection at the point of installation through its working principle of simultaneous overvoltage limiting and circuit interruption. Additionally, it incorporates a range of other technologies, such as temperature compensated sputtering, advanced surge absorption and self-diagnosis LEDs, for improved performance.

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