2027-09-SM

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

In the years leading up to 2027, the application and working principle of Gas Discharge Tube Arresters (GDTs) has been a widely discussed topic in the energy sector. GDTs are increasingly being used in electricity distribution and protection systems, due to their unique characteristics which make them particularly useful for this purpose.

Put simply, GDTs are conducting devices which are used to protect electrical equipment and systems from transient overvoltages. They use a spark gap to create a high-voltage arc which breaks down the gas inside a specially designed gas-discharge tube, allowing it to momentarily conduct a significantly larger current than it would normally be able to. This has the effect of discharging the transient current, thereby protecting electrical equipment.

The application of GDTs is currently wide-ranging and includes protection from transient overvoltage spikes (surges) generated by electrical network switching, direct lightning strikes, neutral-to-ground faults, short-circuit (fault) operation and many other types of accidents or fault conditions. In some cases, GDTs are used to provide protection to local units such as switchgear, transformers, line-terminals, communication systems and even mechanical relays.

The working principle of GDTs is also relatively straightforward. When the spark gap is subjected to a transient overvoltage, a high-voltage arc suddenly forms. This arc ionizes the gases within the tube, creating an electrically conductive plasma which causes a break in the circuit. The subsequent discharge of the overvoltage transient then causes the spark gap to reset and the process is repeated. This process is known as ‘spark quenching’ and is the main function of GDTs.

From a materials perspective, GDTs are often constructed from a combination of quartz and copper. Quartz is a very hard and brittle material which has a high dielectric strength, while copper is an excellent conductor and also exhibits excellent electrical properties. Together, these materials form a superior protective device which is able to withstand up to 100,000 volts of transient overvoltage.

As the use of GDTs becomes more widespread, their application is also becoming increasingly sophisticated. Many conventional GDTs now use computer-controlled triggering systems to ensure they can respond quickly and effectively to voltage transients. This is an important consideration in ensuring the reliability of the protection they provide.

In addition to faster response times, GDTs are also becoming ever-more sophisticated in the way they function. Newer types of GDTs are now being developed which are capable of much higher voltage ratings than traditional devices, and also feature improved ionization control. These advancements in GDT technology are making them increasingly popular in a wide range of industrial and commercial applications, such as electrical power transmission, telecommunications, medical equipment, industrial processes and many others.

Overall, the application and working principle of Gas Discharge Tube Arresters (GDTs) is being widely discussed in the years leading up to 2027. This is due to their ability to provide reliable transient protection, as well as their ever-increasing use in a wide range of applications thanks to advancements in their design and materials. As a result, GDTs are becoming increasingly popular and are being used more and more to improve the reliability of power networks and electronics equipment around the world.

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