9400400000

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Gas Discharge Tube Arresters (GDT)

Gas Discharge Tube (GDT) arresters are a vital technology in electrical protector devices and systems. This type of arrester has been recognized in the industry for many years and is designed to protect sensitive electronics from high-voltage transients that can cause serious damage or even device fail-over. The goal of the design is to allow voltage levels to pass through without any significant impediment, but once a voltage elevation is detected, the arrester will absorb it and minimize the risk of serious damage.

Benefits of the GDT Arrester

One of the primary benefits of using the GDT Arrester is their affordability and performance. Unlike other types of surge protection mechanisms, such as the traditional metal oxide varistor (MOV) or the air gap, GDTs do not require complicated installation and can be quickly and easily installed in any location. This makes them ideal for use in a multitude of environments.

GDTs provide superior surge protection with the following advantages:

• They provide fast and reliable protection against high-voltage transients.
• They do not fail under extreme temperatures.
• They are durable and can last longer than MOVs.
• They are easy to install and maintain, requiring no complicated setup.

Applications of the GDT Arrester

GDT arresters are commonly used in many industries and have grown to become one of the most trusted electrical protection devices. GDTs are used to protect power systems, telecommunications systems, data processing systems, the HVAC industry, and computer operations. GDTs are also used to protect a variety of other systems, such as consumer electronics, computers, audio/video products, automobiles, and home appliances.

Working Principle of the GDT Arrester

Gas Discharge Tube Arresters are based on the same principle as traditional surge protectors; they act as a dissipator of transient voltage. The GDT arrester, however, uses a threefold combination of charge separation, spark gap attenuation, and gas discharge to achieve transient voltage protection. This combination is superior to traditional MOVs in terms of power rating, noise dampening, reaction time, and operational lifespan.

The process begins when an excessively high voltage passes through the GDT arrester and the electrostatic field builds up across its electrodes. When the electric field strength reaches a critical level, an ionized gas cloud forms, breaking down the electric field between the electrodes. This process then releases a stream of electrons, called ionized particles, which create an arc between the electrodes that dissipates the transient voltage.

The process is repeated until the transient voltage has dissipated. This process is very quick, typically taking less than one nanosecond, allowing for reliable and fast protection against transient voltages and protecting sensitive electronics from damage.

Conclusion

Gas Discharge Tube (GDT) arresters provide an affordable and reliable option for electricity protector devices and systems. GDTs offer superior benefits compared to other types of surge protection devices, such as air gaps and MOVs, providing faster reaction times and improved lifespan. GDTs are used in a variety of industries, such as the electricity, telecommunications, and HVAC industries. The working principle of the GDT arrester combines charge separation, spark gap attenuation, and the gas discharge process to achieve protection from high voltage transients.

The specific data is subject to PDF, and the above content is for reference