2049-30-BLF

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Gas Discharge Tube Arresters (GDT) are an essential piece of electrical protection equipment which utilizes applications of high voltage to protect against electrical surges. The 2049-30-BLF application field and working principle of GDT are based on the principle of using a gas discharge tube to abruptly move or shift the discharge current to earth, which limits the recovery voltage and thus provides a higher level of protection.

The 2049-30-BLF GDT is designed for protecting primary medium voltage systems from momentary high short circuit currents. It is designed for use in medium voltage systems with a rated voltage of up to 30 kV, a lower operating voltage between 10-13.4 kV, and a continuous operating voltage up to 25 kV. The GDT has a built-in lightning arrestor feature with a 15 kA breaking capacity which prevents electrical surges from reaching the transformer or other connected equipment.

The working principle of the 2049-30-BLF GDT is based on an avalanche breakdown that occurs when the applied voltage exceeds the rated voltage. When the applied voltage exceeds a pre-determined threshold, the avalanche breakdown occurs, and a conduction path is created between the two electrodes in the sign of arc discharge. This conduction path is then used to transfer the high current and voltage to the ground. The current transfer rate is typically 100-200 ka/usec and the breakdown voltage remains constant despite any fluctuations in the input voltage.

The GDT is also equipped with an overvoltage protection system to further protect against electrical surges. This system monitors the status of the line and if an abnormal or high voltage is detected, the system will open the circuit to the transformer and ground the voltage. The 2049-30-BLF GDT also has an integrated spark gap that helps to reduce the surface flash-over of the electrodes, thus further enhancing the protection against electrical surges.

The 2049-30-BLF GDT also features an advanced surge management system that helps to reduce the stress on the equipment from multiple, concurrent surge events. This system uses a combination of surge monitoring, analysis, and mitigation techniques to detect and respond to changes in the power system, helping to reduce peak voltage and maintaining long term surge protection.

Overall, the 2049-30-BLF Gas Discharge Tube Arresters (GDT) is an excellent piece of electrical protection equipment with a wide range of protection capabilities. It is designed to provide an effective and reliable protection against momentary high short circuit currents and its integrated surge protection system provides solid protection against multiple, concurrent surge events.

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