2045-12-BLF

Gas Discharge Tube Arresters (GDT)

Gas Discharge Tube Arresters (GDT) are an essential part of the modern electrical system as they provide protection from the effects of lightning strikes. GDTs can be used in a wide variety of applications, including overhead power lines, substations, and communications lines. In the twenty-first century, GDTs have become an increasingly important tool in the protection of electrical systems from the damaging effects of lightning and other high-voltage surges.

Overview

A GDT Arrestor is a single device, usually comprising two metal terminals and a discharge tube. An external electric field causes the gas inside the discharge tube to break down, forming a plasma arc. This plasma arc then provides a conduction path for the electric current, allowing the surge or overvoltage to be dissipated safely. In service, the GDT will be placed between two points in the system; typically across a conductor, or along the ground path.

Advantages of GDTs

GDTs offer many advantages over traditional arrester designs. They are usually smaller, simpler, and less expensive than other arrester designs, while also providing superior protection. GDTs are also unaffected by mechanical shock or vibration, and require no maintenance. In addition, GDTs operate over a wide range of voltages and frequencies, and can be used in both AC and DC systems.

2045-12-BLF Application Field and Working Principle

The 2045-12-BLF range of Gas Discharge Tube Arresters has been designed specifically for use on AC and DC systems up to 320V. The 2045-12-BLF GDTs are designed to protect overhead power lines, substations, and electrical and communication systems from damaging lightning surges and overvoltage events. The 2045-12-BLF has a rated insulation voltage of 2000V and its working principle is based on the rapid breakdown of gas inside the discharge tube. The breakdown creates a low-impedance current path through which the surge or overvoltage can be safely dissipated.

Conclusion

Gas Discharge Tube Arresters (GDTs) are an effective and versatile tool for the protection of electrical systems from the effects of lightning and other high-voltage surges. In particular, the 2045-12-BLF range of GDTs is designed specifically for use on AC and DC systems up to 320V, offering superior protection and low maintenance costs. As lightning and other surge events continue to become more common, GDTs are likely to remain an essential component of electrical safety systems for many years to come.