2056-20-B2LF

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Gas Discharge Tube Arresters (GDT) are used in many types of applications as power protection devices. They protect circuits from overvoltages due to lightning, line faults, and other external influences. The 2056-20-B2LF is a GDT arrester that has been specifically designed for low frequency applications. This article will explain the application field and working principle of the 2056-20-B2LF.

Application Field of the 2056-20-B2LF GDT

The 2056-20-B2LF GDT is designed to manage low-frequency overvoltages. It can be used in a variety of applications, including telecommunications, power supply, and data centers. The device can protect against both direct lightning strikes and transients generated from indirect lightning.

For telecommunications applications, the 2056-20-B2LF can protect both the transmission system and the subscriber line. The device is well-suited for applications requiring low voltage protection, such as TX and FX equipment. It is also effective in CT/IT systems. The device can be used to protect power transmission lines, power supplies for computer and medical equipment, and data lines for alarm and security systems.

Working Principle of the 2056-20-B2LF GDT

The 2056-20-B2LF GDT uses a spark gap and an avalanche diode as its main components. Together, these components create an electrical flow that protects the device’s load from overvoltage. The spark gap is the first line of defense against any overvoltage. When an overvoltage is present, the spark gap absorbs the energy and limits the current through the device.

The avalanche diode serves as the second line of defense. It serves to further limit the current when the spark gap fails to do its job. The avalanche diode works by rapidly reducing the voltage across it, which prevents the current from increasing further.

Finally, the device is equipped with two resistors. These resistors are used to create a Path of Restitution (PoR), which is a way of automatically resetting the system to its original state, once the overvoltage has passed. This allows the 2056-20-B2LF to continue to operate in the event of another overvoltage.

Conclusion

Gas Discharge Tube Arresters (GDT) are power protection devices that are used to protect circuits from overvoltages due to lightning, line faults, and other external influences. The 2056-20-B2LF is a GDT arrester specifically designed for low frequency applications. It is used in a variety of applications, such as telecommunications, power supply, and data centers. The device is protected using a spark gap, an avalanche diode, and two resistors. The device is also equipped with a Path of Restitution (PoR) to automatically reset the system when an overvoltage has passed.

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