2047-35-BLF

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Gas discharge tubes (GDTs) have been used since the 1960s as lightning protection devices and are an integral component of most lightning protection systems. GDTs, also known as gas-filled varistors, are devices that combine the advantages of both solid-state and traditional fuse-type devices to provide enhanced protection from lightning and high-voltage surges. GDTs are also known as spark gaps, arcing horns, and gas tubes.The 2047-35-BLF gas discharge tube arrester is a three-phase arrester designed to protect electrical systems from overvoltages that may arise from transient surges such as lightning strikes or other high-voltage events. The 2047-35-BLF arrester has a voltage rating of up to 35 kV and is designed for use in residential, commercial, and industrial applications.

The working principle of gas discharge tube arresters is based on the principle of an ionization effect. A gas discharge tube arrester consists of a sealed glass envelope filled with a low-pressure noble gas such as nitrogen, which ionizes and conducts current at a specified voltage level. When a voltage surge or lightning strike occurs, the gas inside the arrester begins to ionize, allowing the current to travel between the electrodes creating a conductive path that diverts the surge current away from downstream components and safely discharges it to the ground. The current is then dissipated in a controlled manner without damaging any connected system components.

They are also used to protect power distribution systems from standard operating faults, such as short circuit faults, line-to-line faults, and line-to-ground faults, by quickly limiting the current flow and diverting it to a safe location, usually to the ground. This is accomplished through the use of a gas explosion chamber, which ruptures when the surge current flow exceeds a specified level, creating an explosion within the enclosure. The explosion opens a contact gap within the arrester, allowing the surge current to flow freely to the ground.

Gas discharge tube arresters are designed to provide a number of protections for electrical systems in both residential and commercial applications. The most common use of GDTs is as surge protectors, which provide protection from transient surge voltages caused by lightning strikes and high-voltage events. They are also used to provide an extra level of protection for sensitive electronic devices and components by limiting the current flow and diverting it away from downstream components.

GDTs are also used in power distribution systems to provide a quick and reliable response to various types of faults. GDTs provide a direct current path when fault current flows from the line to the ground, and by doing so, reduce the fault current and limit the fault clearing time. GDTs also protect system components from high-voltage surges that come from short circuits or load switching.

GDTs are also used to protect communication systems from high-voltage surges. These systems can be found in many industries, such as telecommunications, military, and infrastructure applications. GDTs are designed to provide additional protection for sensitive communications equipment from Short, Open, and Active surges caused by external events.

In addition, GDTs are used in the protection of residential and industrial plant equipment, such as elevators, conveyor systems, and motor-driven applications. GDTs are designed to limit the current flow and divert it away from the equipment, preventing damage or electrical system failure.

In conclusion, gas discharge tube arresters are used in a variety of applications to protect sensitive equipment and components from transient overvoltage surges, and to provide protection from fault conditions. GDTs provide an extra layer of protection, allowing electrical systems to operate safely and efficiently. GDTs are reliable devices that are easy to install and maintain for years of uninterrupted protection.

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