T049187

Series:	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Moisture Sensitivity Level (MSL):	--

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Gas Discharge Tube Arresters (GDT) Gas discharge tube arresters (GDTs) are overload protective devices that are used to safeguard electrical equipment from damage due to lightning and other electrical disturbances. They are also known as spark gap arresters, lightning arresters, or simply surge arresters. GDTs are an important component of any electricity network, and their use is essential to managing and protecting electrical systems.GDTs typically consist of two main parts: the gas-filled tube and the electrode system. The gas-filled tube consists of a container filled with a dielectric gas, which is usually a mixture of sulfur hexafluoride (SF6) and nitrogen. The electrode system consists of two electrodes, a cathode and an anode. When subjected to an overvoltage, the gas within the tube ionizes and breaks down, creating a spark gap and allowing current to flow to ground, thus diverting the overvoltage away from the electrical system. When the overvoltage ends, the ionized path returns to its non-ionized state, preventing current from flowing.The T049187 application field of GDTs includes high voltage electrical networks, telecommunications systems, substations, and many other applications. GDTs can be used to protect various types of electrical equipment from surges, lightning strikes, and other transient overloads. GDTs are commonly used in both outdoor and indoor applications. The working principle of GDTs is based on the phenomenon of gas breakdown. When an overvoltage is applied, the gas within the tube ionizes and forms a spark gap, allowing current to flow to ground. As the voltage drops, the gas neutralizes and the spark gap disappears. This phenomenon prevents the overload from entering the protected system.GDTs can also be used for protection from transients, such as lightning strikes. When the lightning strikes, the spark gap forms rapidly, allowing the overvoltage to be conducted to ground. This prevents the sensitive equipment from being damaged by the transient. GDTs are effective at providing protection for sensitive electronic and electrical equipment from overvoltage. They are also economical, reliable, and easy to maintain. As a result, GDTs are a popular choice for protecting from transient overvoltage events. GDTs are available in a wide range of styles and sizes. Smaller GDTs typically have a lower energy rating than larger ones, but they are much more compact and easier to install. GDTs can be rated for both alternating current (AC) and direct current (DC). GDTs are typically housed in an insulated housing, which provides a degree of mechanical protection as well as electrical isolation from the protected equipment. In conclusion, GDTs are an important component of any electricity network, and their use is essential to managing and protecting electrical systems. They provide reliable overvoltage protection for sensitive electronic and electrical equipment, and can be used to protect from lightning strikes and other transients. GDTs are available in a wide range of styles and sizes, and are typically housed in an insulated housing.

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