2061-25-ALF

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Gas Discharge Tube Arresters (GDT) are special purpose devices designed to limit the transient voltages on electrical power distribution, telecommunications and power systems. The 2061-25-ALF is a specific make and model of GDT that is widely used in electrical power systems. This article will provide an overview of the application field and the working principle of the 2061-25-ALF.

The 2061-25-ALF GDT primarily functions as a voltage limiter. It is designed to protect equipment from lightning surges, transients from other sources, and accidental overvoltages. It is particularly well-suited for use in high voltage (HV) power systems located in areas subject to frequent storms, and in telecommunications networks exposed to lightning risks. This GDT is rated for use up to 25 kV and is capable of handling maximum peak currents of 8 kA.

The 2061-25-ALF GDT works by limiting the voltage at the point in the system where it is installed. It achieves this by splitting the voltage between the line terminals. Inside the arrester is a specialized resistor known as a “surge resistor” which absorbs much of the high voltage surge. The arrester also contains one or more GDT’s which further absorb and dissipate the excessive voltage. At normal operating voltages, the GDT’s remain in their non-conductive state. When a voltage surge occurs, the GDT becomes active, allowing current to flow through it. This allows the surge energy to be discharged safely, thus limiting the voltage seen by the equipment. It should be noted that this type of GDT also provides some degree of protection against short-circuit faults.

The 2061-25-ALF GDT is designed and manufactured to meet a variety of safety and design standards. It is tested to ensure it can meet the requirements of IEC 61643-1, UL 1449 and NFPA 780 surge protection standards. The arrester is designed to be easy to install and maintain, and is compact and lightweight. It also features built-in diagnostic and protection features, as well as optional surge protection monitoring and control systems.

In summary, the 2061-25-ALF GDT is a reliable and effective solution for protection against transient voltage surge for HV power and telecommunications systems. It is designed to limit the peak voltages to safe levels, thereby reducing the risk of damage to equipment. The arrester is compliant with a range of safety and design standards and is available with optional protection features. It is an economical and efficient solution for protecting electrical systems against transients.

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