Arrester is characterized as a protective device for limiting surge voltages on equipment by diverting surge current and returning the device to its original status. It is capable of repeating these functions as specified.
In the industrial context, an "arrester" is a device used to protect equipment and personnel from the damaging effects of electrical surges or transient voltage. Electrical surges can be caused by lightning strikes, power system faults, or switching events. Arrester devices are designed to redirect these surges away from sensitive equipment and to earth ground.
Some examples of arrester devices used in industry include:
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Surge Arresters: These are commonly used to protect electrical equipment from overvoltage surges caused by lightning strikes, power system faults, or switching events. Surge arresters work by diverting the excess voltage to ground, thereby protecting the equipment.
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Gas Discharge Tubes: These are devices that use a gas-filled chamber to protect against voltage surges. When a voltage surge occurs, the gas inside the chamber ionizes and forms a conductive path to ground, protecting the equipment.
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Metal Oxide Varistors: These are devices that use a metal oxide material to protect against voltage surges. When a surge occurs, the varistor's resistance decreases, diverting the excess voltage to ground.
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Lightning Rods: These are devices that are installed on the roofs of buildings to protect against lightning strikes. Lightning rods work by providing a path of low resistance for the lightning to follow, thereby protecting the building and its occupants.
Some other similar devices used in the industry for protection against electrical surges include:
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Transient Voltage Suppressors (TVS): These devices are used to protect electronic circuits from high voltage transients by shunting the excess voltage to ground.
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Voltage Regulators: These devices are used to regulate voltage levels in electrical systems, protecting against voltage spikes and drops.
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Ground Fault Circuit Interrupters (GFCI): These devices are used to protect against electrical shock by interrupting the flow of current when a ground fault is detected.
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Circuit Breakers: These devices are used to protect electrical circuits from overloads and short circuits by interrupting the flow of current.
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