2015-42-SMC-RPLF

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Gas Discharge Tube Arresters (GDT) are widely used in electrical equipment as a means of generating an arc, breaking down the gas into conductive particles for the purpose of passing current from one point to another. The purpose of this is to protect the equipment from damage due to lightning strikes or other electrical surges. GDTs are most commonly used in applications where higher currents are required, such as power distribution systems.

The 2015-42-SMC-RPLF application is a GDT designed by SMC Corporation, a leading manufacturer of electrical equipment. The device is a hybrid GDT, featuring both solid-state and gas-filled components. The main components of the device are the solid-state bridge, the gas chamber, and the arrester spark gap. The solid-state bridge forms the base of the device, providing the necessary DC power, and current monitoring. The gas chamber is an avalanche diode which serves as the primary power limiting element, and the arrester spark gap limits the voltage output.

The working principle of 2015-42-SMC-RPLF involves two key stages. Firstly, during the surge limit stage, when an incoming surge voltage exceeds the voltage set at the solid-state bridge, a current is generated through the gas chamber. This current reduces the voltage within the gas chamber, until it reaches a level set by the arrester spark gap. When this voltage is exceeded, the gas chamber discharges, creating an arc and ionizing the gas within it.

The second stage is the recovery stage. Here, the gas in the chamber gradually condenses back to its original state, allowing the voltage in the arrester spark gap to return to its original level. This process then repeats in the event of any further surge voltage. This cycle of surge limit and recovery helps to ensure the continued functionality of the protected equipment, even in the event of a surge.

The 2015-42-SMC-RPLF application is a highly specialized GDT designed specifically for high-current applications. It is an extremely reliable device, capable of protecting delicate electrical equipment from damaging surge voltages. With its solid-state and gas-filled components, the device provides a high degree of protection in a wide range of applications.

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