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HV and LV Switchgear

XGZ18-40.5 Environmentally Friendly Gas-Insulated Metal-Enclosed Switchgea

Product name

XGZ18 Series Environmentally Friendly Gas-Insulated Metal-Enclosed Switchgea

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Application Range

The switchgear comprises a circuit breaker chamber, a busbar chamber, a mechanism chamber, a cable chamber, an instrument chamber, and a pressure relief channel. The gas chamber is formed into a sealed box by aluminum casting and welding. Both the main busbar chamber and the circuit breaker chamber are enclosed gas-filled compartments, filled with environmentally friendly gas at a pressure of 0.22 Mpa, serving as an insulating medium. The internal gas pressure of the gas-filled enclosure is monitored by a pressure gauge with remote transmission capability, transmitting data to the backend in real time. The sealed box is equipped with plugs or sockets for incoming and outgoing lines, which can also accommodate highvoltage components such as ZnO lightning arresters and voltage transformers (when the reserved plugs or sockets are not required for connection, they are blocked with dedicated insulating plugs).

XGZ18 as primary distribution equipment in gas insulated single busbar or double busbar, is mainly applied to: Substation and distribution station、Infrastructure, such as buildings、Government office、Steel plant、Tail traffic、Water treatment system

Product Features

The HV electrical part is installed in the enclosed gas chamber filled with dry air as the insulating gas, so as to ensure that it is completely free from the influence of the external atmospheric conditions.

Circuit breaker room and bus bar room are independent gas chambers of every switchgear.

The gas chamber is equipped with desiccant bags

Operation Pressure Detection

The rated inflation pressure of each independent gas chamber is monitored by an independent density meter:the density meter of the circuit breaker room and the density meter of the bus bar room

If the pressure of the gas chamber drops to the alarm pressure, the intelligent control and protection unit will detect the abnormality through the contact of the density meter, and display and upload the alarm signal to the background.
As an option, if there is no intelligent control and protection unit, when the gas pressure drops to the alarm pressure, the specific signal light can indicate the alarm.

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