2056-42-B2FLF

Gas Discharge Tube Arresters (GDT) are vital components used in electrical power systems for overvoltage protection. Specifically, 2056-42-B2FLF GDT arrester is a metal oxide varistor and surge arrester combined in one device. This particular model is rated 100kA (10/350µs) lightning current discharge capacity and is suitable for medium voltage (MV) systems.

To understand this device, it is important to look at both its application field and working principle. Generally, 2056-42-B2FLF GDT arrester is used to clear voltage spikes in power systems, preventing expensive damages from occurring. Common application areas are typically in wind turbine systems, as well as in substations and air insulated switchgears. This is all achieved with its reliable overvoltage protection.

The working principle of a 2056-42-B2FLF GDT arrester is based on the concept of a spark gap. When the voltage reaches a certain level, a spark gap is formed. This spark gap then provides a path to ground, thus killing the current flow and protecting the device from the sudden voltage spike. This is accomplished by a sacrificial metal layer that acts as the spark gap and is composed of an insulating dielectric. The dielectric has an extremely low breakdown voltage so that, when the voltage reaches it, the spark gap will form.

Furthermore, the arrester has a metal oxide varistor (MOV) with a high-frequency carrier current resistance component. The varistor adjusts the current level depending on the voltage so that it can effectively suppress high frequency, low-amplitude overvoltage transients. This helps to reduce the effects of high frequency noise on the entire system, as well as prevent any potential failure.

The combination of both the spark gap and MOV helps to ensure the 2056-42-B2FLF GDT arrester can handle medium voltage applications with ease. This is due to its high power handling capacity and its ability to handle repetitive surge voltages without failure. This makes it the perfect choice for use in substations, wind turbines, and other electrical systems.

Moreover, the 2056-42-B2FLF GDT arrester has some unique features that make it stand out from the competition. It is fully certified for IEC and UL safety standards, as well as IP68/IP20 rated. In addition, it is designed to be resistant to heat, ozone, and UV radiation. As a result, it is an ideal choice for outdoor applications that require high voltage protection and need reliable surge protection.

In conclusion, the 2056-42-B2FLF GDT arrester is an excellent choice for medium voltage applications that require reliable overvoltage protection. Its combination of a spark gap and MOV provide superior protection against both low and high frequency noise, as well as spike voltages. Additionally, with features such as certification for IEC and UL safety standards, IP68/IP20 rating, and resistance to heat, ozone, and UV radiation, it is an ideal choice for outdoor applications.