2047-23-ANI

Gas discharge tube (GDT) arresters are electrical components used to control and limit the magnitude and duration of surge voltages and currents. The purpose of GDT arrester is to provide electrical protection from over-voltage surge due to lightning or transient power systems. They act as a "one-way" valve, allowing current to flow in only one direction. A classic GDT arrester is a voltage-sensitive device that interrupts electrical flow when a voltage surge or over-voltage occurs.

GDT arresters are commonly used in power transmission networks, telecommunications networks, AC/DC power systems, and consumer applications. In power transmission, GDT arresters are used to protect circuits, equipment, and people from hazardous over-voltage surge. Similarly, GDT arresters can provide protection for telecommunications systems and AC/DC power systems. In consumer applications, GDT arresters are used to protect electronic devices from lightning-induced over-voltage surge.

A GDT arrester consists of a number of electrodes located in a sealed glass tube filled with gas. The voltage source (or "power supply") is connected to the first electrode. As the voltage increases, an electric arc will form between the electrodes. This arc will cause a rapid increase in temperature, which in turn will cause the gas in the tube to expand and extinguish the arc. As the gas cools down, it contracts and the voltage across the electrodes will decrease again, thus cutting off the current.

The working principle of GDT arresters is simple. When an over-voltage surge is detected, the arrester allows the current to flow in one direction while blocking the current in the other direction. This provides protection by preventing the over-voltage surge from taking effect. It also prevents dangerous electric shocks.

GDT arresters are a cost-effective and reliable solution for protecting electrical systems and equipment from over-voltage surges. They can be used in a variety of applications, including power transmission networks, telecommunications networks, AC/DC power systems, and consumer applications. They are easy to install and provide reliable protection against hazardous over-voltages.