G5500AS Circuit Protection

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Gas discharge tube arresters (GDT) are a type of surge arrester that is used to protect circuits and equipment from the damage that can be caused by high-voltage transient overvoltage disturbances. GDTs are designed to provide protection from both lightning-induced overvoltages and internally-generated power system switching overvoltages.G5500AS is a GDT arrester that has a higher effectively protection rating (EPR) than other standard GDTs. This is because it has a larger diameter GDT chamber that is designed to contain a much larger volume of dielectric gas, compared to other GDT types. This larger gas volume has the effect of limiting the peak surge current through the GDT, thus enabling the arrester to operate faster and more efficiently.The main application of the G5500AS is to protect electrical power systems from surges caused by lightning strikes and other transient overvoltages. The G5500AS can be used to protect electrical distribution systems, such as transmission lines, transformers, substations, and other equipment. It can also be used to provide protection from transient overvoltages that are generated from abnormal switching operations in power systems.

The G5500AS has two main components, the chamber and the plate. The chamber is a hollow cylindrical vessel that is filled with a dielectric gas. The gas acts as an insulator, preventing the flow of electrical current between the chamber and the plate. The plate is a metal disc that is mounted on the top of the chamber. The plate is designed to allow the passage of electrical current, and is grounded to the circuit being protected.The working principle of the G5500AS is based on the concept of gas-filled arresters. When exposed to a surge of electricity, gas ionizes and creates a conductive path between the chamber and the plate of the arrester. This allows the surge of electricity to be diverted safely to ground through the plate, thus protecting the electrical circuits and equipment.When the surge of electricity passes through the G5500AS, the gas expands rapidly and increases the internal pressure of the chamber. This causes the internal pressure to rise and forces the metal disc to expand, creating an air gap between the plate and the chamber. This air gap disrupts the electrical current, effectively halting the surge and allowing the arrester to protect the circuitry.

The G5500AS is a reliable and durable device, and is designed to withstand even the most extreme conditions. It has been tested to IP67 standards, meaning that it is dust proof and protected from the effects of water. It also has a wide temperature range, from -40°C to +85°C, making it suitable for a variety of applications. The G5500AS also has a high surge current capability, meaning that it is able to protect equipment from even the strongest transient overvoltages.Overall, the G5500AS is a powerful and reliable GDT arrester. It is capable of providing reliable protection from both lightning-induced and internally-generated power system transient overvoltages. Its wide temperature range and high surge current capability make it a suitable choice for many different applications.

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