A switchgear is a component, or series of components, within an electric power system. Consisting of switches, fuses, circuit breakers, and other components used for controlling the flow of electricity, a switchgear is used to isolate, protect, and control any electrical equipment that is attached to it. The form a switchgear takes varies depending on its purpose. Domestic switchgears for a typical house are intended for use with low–voltage equipment, which changes the requirements of the switchgear itself. Switchgears used on large machinery, such as trams, are much larger and often need to be ventilated. There are many different versions that a switchgear manufacturer or switchgear supplier on productpilot.com will typically sell, each working in a different way to achieve the same purpose.

Oil-based switchgears, one of the oldest designs, use the arc of a broken circuit to ignite oil and release hydrogen gas, creating a hydrogen bubble that prevents the arc re-striking. Air circuit breakers use compressed air to stretch the arc to the point of breaking. Gas breakers also stretch the arc and then rely on properties in the gas to put the arc out. Similarly, carbon dioxide arcs work in the same manner however they use a different gas-carbon dioxide, which is preferred for the improvement in greenhouse emissions. A switchgear dealer or switchgear manufacturer will be unlikely to sell older versions of due to safety reasons, however, it is still possible to purchase them in most cases to suit older electrical systems. One of the aims a good switchgear manufacturer will have is to reduce the time taken to break the circuit to such that, should a person be in contact with the circuit at the time of a surge, the current will be cut before they are harmed. For this reason switchgear technology is always evolving, productpilot.com can help traders stay up to date with this market.

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