9400540000

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) are devices that are used to protect sensitive electrical equipment from sudden voltage surges by diverting the high surge current. They are made of metal oxide-filled reaction tubes that contain a gas, which when subjected to excess voltage from an over-voltage event, quickly releases its charge and relieves the pressure on the protected equipment. When the voltage returns to its normal state, the GDT resets, ready to provide protection again.

GDTs are commonly used in a variety of applications, from power supplies and telecommunications to industrial process control. GDTs are also used in a variety of mediums, including air, gas, oil, and water. As such, their operation and installation requirements will depend on the specific application and environment.

The working principle of GDT can be explained with of Faraday\'s Law of Electrostatics. This law states that when an electric field is applied across a conductive media, an induced electric charge will appear on the surface of the media. This charge is the result of electrons being added to or removed from the surface of the media. In the case of GDTs, when an over-voltage situation occurs, these electrons will rush to the surface and create a large surge current, releasing the pressure and protecting the electrical equipment.

GDTs generally consist of a housing filled with gas and two electrodes, with one electrode connected to the equipment being protected. In the case of lightning surges, for example, the two electrodes act as a spark gap. As the voltage increases beyond the breakdown voltage of the GDT, the spark gap breaks down, allowing the large surge current to be safely diverted away from the sensitive equipment. Once the voltage has been relieved and the spark gap has closed, the GDT can reset and be ready for the next over-voltage situation.

GDTs are an important tool in protecting electronic devices from the damaging effects of over-voltage situations. They are designed to be highly resistant to lightning strikes, power spikes, and other intense electrical events. The key to GDTs is their ability to divert high surge currents away from the protected equipment, while limiting the impact on the equipment. For this reason, GDTs are becoming increasingly popular in a range of applications.

GDTs offer a range of advantages over other types of surge protection devices. They are compact, lightweight, and easy to install. They can be used in a variety of environments and are highly resistant to corrosion. Furthermore, GDTs are capable of protecting equipment from lightning surges as well as power spikes, so they can provide effective protection in situations that other surge protection devices may not be able to handle.

Overall, GDTs are an important tool for protecting electronic equipment from the damaging effects of high surge currents. By understanding the working principle and application fields of GDTs, one can better understand the importance of these devices in protecting sensitive electrical equipment.

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