2037-40-BLF

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Gas Discharge Tube Arresters (GDT) are a specialized form of high-voltage surge arresters. As with other surge arresters, they are designed to protect electrical equipment from transient voltage spikes, such as lightning strikes. Specifically, GDTs, or air gaps, serve as a direct connection between the high voltage line and ground. During periods of high voltage, GDTs will short circuit the high voltage surge to ground, thereby providing protection to downstream electrical equipment. In other words, they act as a safety valve against potentially disastrous results in the event of an overvoltage event.

The most common type of GDT used in power distribution systems is the 2037-40-BLF, an air gap that is designed to interrupt the connection between the electrical line and ground when subjected to a high voltage surge. It is most commonly used in areas where high voltage is present, such as when lightning strikes near or in the vicinity of power lines. The 2037-40-BLF also has a voltage limiting feature, which ensures that the voltage drop across the GDT remains within certain levels, while still allowing electrical equipment downstream to remain undamaged in the event of a risk of overvoltage. This feature is extremely useful for protecting electrical equipment and networks from the risk of serious and potentially catastrophic damage in the event of a surge.

The 2037-40-BLF consists of two electrodes separated by a gap of air. When a high voltage surge occurs, the gap acts as an open circuit, creating an arc that shorts the high voltage surge to ground. This act limits the voltage below the chosen ‘safe’ voltage level, often to less than a fourth the size of the surge. The two electrodes are typically made of zinc oxide with a breakdown voltage of approximately 400 kV. These electrons can then be easily discharged by the ground point, where any equipment connected to it is kept safe from damage due to overvoltage.

The 2037-40-BLF GDT has a typical electrical breakdown voltage of 800 kV, making it well suited for high voltage applications. It also has a wide range of safety features, such as the electrostatic shielding, which prevents stray electrical charge from dissipating into the surrounding environment. The breakdown voltage is also adjustable, allowing the user to select different levels depending on the needs of the application. The 2037-40-BLF has a short clearance time of up to 5 microseconds, meaning the electrical connection between the ground and the surge is restored quickly, thereby reducing the risk of sustained exposure of the surge to downstream equipment.

The 2037-40-BLF GDT is often used to protect against damage caused by lightning strikes in power transmission lines and to provide surge protection in industrial, commercial, and residential installations. It can also be used in other high voltage applications, such as solar photovoltaic systems, medical laser systems, and high-speed data communication networks. With its adjustable voltage range and wide variety of safety features, the 2037-40-BLF is a highly versatile and reliable choice for surge protection.

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