GTCR38-351M-R20

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Gas Discharge Tube Arresters (GDT) are devices used to protect electrical and electronic components from transient voltage surge events, which can occur due to lightning strikes, short circuits, switching events, and other causes. The GTCR38-351M-R20 is an example of this type of protection device.

The GTCR38-351M-R20 is a four-stage, three-element gapless Gas Discharge Tube Arrestor, made of metal-oxide varistors, thermally protected resistors and two stage high voltage, gas-filled tubes. It provides excellent protection from transient voltage surge events and sustained damaging overvoltages on high voltage systems and communications lines. The three elements work together to clamp and limit transient overvoltages to levels that low-voltage equipment can withstand. The design also allows the device to self-heal after overvoltages, so it can protect equipment from recurring transient events, which many standard devices fail to do.

The GTCR38-351M-R20 is commonly used in the electric power industry to protect medium and high voltage systems. It is designed for applications such as waveform rectifiers and switchgear. It can also be used in telecommunications, CATV networks, satellite systems, LAN, and WAN systems. The device is also useful for the protection of electronics, such as medical, industrial, and monitoring systems.

The working principle of the GTCR38-351M-R20 is fairly simple. When a surge of voltage is applied to the device, the metal-oxide varistor clamps the voltage to a specified value, which is known as the let-through voltage. The thermally protected resistor then shorts the current, dissipating it in the form of heat. The high voltage, gas-filled tubes then carry any remaining current from the varistor and resistor, disrupting it when the current reached a certain level. These actions work together to divert surges and overvoltages away from connected equipment.

The GTCR38-351M-R20 is a reliable and efficient Gas Discharge Tube Arrestor that can provide effective protection from transient voltage surges and other damaging overvoltages. It is designed for use in the electric power industry and can be used in telecommunications, CATV networks, and other applications. Its three-element design allows it to clamp and limit surge voltages to levels that low-voltage equipment can withstands and also features an efficient self-healing process that protects equipment from recurring overvoltages.

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