GTCA28-750M-R20

Gas Discharge Tube Arresters (GDT)

Gas Discharge Tube Arresters (GDT) are electrical safety devices that provide lightning protection for places and prevent failure of electrical and electronic circuits not designed for lightening impact. Nowadays, Gas Discharge Tube Arresters (GDT) technology have become more and more mature, the GTCA28-750M-R20 is one of the latest GDTs which has been recognized as the highest rated Gas Discharge Tube Arrester (GDT) with excellent flow for a nominal peak value of 20KA. It has a fast response time and good ability to reduce radio interference. Therefore, the GTCA28-750M-R20 can be widely used in various industries.

Application Field of GTCA28-750M-R20

The GTCA28-750M-R20 has various application fields and can provide protection of sensitive equipment from both industrial and electrical currents as well as electromagnetic emission in general. Some of the popular applications of GTCA28-750M-R20 are listed below:

• Surge protection in point-of-load (PoL) converters
• Surge protection in racks for various telecom andindustrial installations
• Surge protection in instrumentation networks
• Surge protection in bus ducts for classical network uses
• Railway applications
• Power supplies for computers and communication systems
• Surge protection in renewable energy systems
• Electrical power distribution networks (including overhead lines and substation equipment)

Working Principle of GTCA28-750M-R20

The GTCA28-750M-R20 consists of several components and the primary component is the Gas Discharge Tube (GDT). GDT is a sealed gas-fill tube that consists of two electrodes, a trigger wire, a gas-fill material, and a dielectric between the electrodes. When the voltage across the GDT exceeds the rated voltage, the electron from the trigger wire ionizes and generates an electrical arc that passes through the gas-fill material and the dielectric and discharges the excess charge. By discharging the excess charge, the GTCA28-750M-R20 limits the surge in the device or system and thus prevents possible risks or damages.

Conclusion

In a nutshell, the GTCA28-750M-R20 is one of the latest and highest rated GDTs providing excellent protection from both industrial and electrical currents. It has wide applications in different fields such as point-of-load (PoL) converters, instrumentation networks, renewable energy systems, etc. Moreover, its working principle is quite simple influenced by the trigger wire which generates electrical arc when the voltage across the GDT exceeds the rated level.