2018-42-SMH-RPLF

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 (GDTs) are electrical protection devices used in power supply networks and other applications. They protect the system from thermal and electrical overvoltage discharge. GDTs protect against lightning, switching, thermal and other transient overvoltages. GDTs are important protection components, which are essential to reliable power supply operations.

The 2018-42-SMH-RPLF application field and working principle involve a Gas Discharge Tube (GDT) serves as the main component of the arrestor. GDT arrestors have three main functions: impedance matching, current limiting, and current compression. The impedance matching function helps to minimize reflection of the lightning or switching overvoltage and reduce the overvoltage surge energy applied to the protected system. The current limiting function makes sure that the maximum current that flows through the GDT is less than the rated value of the arrestor. The current compression function limits the duration of the overvoltage current.

A GDT arrestor consists of three main components: the main body, the main contact, and the surge tube. The main body is constructed of a brass tube that holds the main contact and the surge tube. It also contains a ceramic insulator and a spark gap for the surge tube. The main contact is typically made of copper or aluminum and is fastened to the main body. The surge tube is made of a dielectrice material and is placed between the main contact and the spark gap. The spark gap can be adjusted to define the resistance of the GDT.

The working principle of a GDT arrester is that when an electric field is applied to the arrester, it moves electrons from the main contact to the spark gap and the main body. These electrons then travel between the spark gap and the surge tube, building up electric potential energy. When the electric potential energy exceeds the breakdown voltage of the material, a discharge occurs. The discharge travels through the surge tube, dissipating the overvoltage and thus protecting the protected system.

GDTs are widely used in power supply networks because of their low cost and long life. They are also highly reliable in protecting the system from overvoltage protection. GDTs provide reliable protection against lightning and transient overvoltages, which are necessary for the reliability and safety of power systems. Furthermore, GDTs are also suitable for other applications, such as EMC and RF shielding.

In conclusion, the 2018-42-SMH-RPLF application field and working principle rely on the Gas Discharge Tube (GDT) arrester. With its impedance matching, current limiting, and current compression functions, it provides reliable protection against lightning and transient overvoltages. GDTs are also reliable in protecting the system from EMC, RF shielding, and other applications.

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