Why have inflatable cabinets been widely used in rail transit?
The gas-insulated switchgear ensures the stability and safety of the power grid operation through high-quality laser welding work. Nowadays, more and more buildings seeking high reliability and safety are equipped with this type of gas-insulated ring main unit. Some well-known gas-insulated switchgears have received unanimous praise and approval from many users. So why is the gas-insulated switchgear widely used in rail transit?
1. High safety of epoxy resin casting cover
Rail transit may sometimes need to pass through external environmental conditions that are relatively harsh, such as condensation, salt spray, and pollution, thus it has higher requirements for the safety performance of gas-insulated switchgear. Most charging cabinets use an epoxy resin cast surface layer to cover the metal layer of the grounding device, which gives these cabinets better explosion-proof and insulation functions.
2. Power switch is equipped with explosion-proof device
The reason why gas-insulated switchgear can be frequently used in rail transit operations is that its power switch is equipped with an explosion-proof device, which is more conducive to enhancing the control capability of the distribution network. In addition, choosing gas-insulated switchgear in rail transit helps avoid dirt and corrosion in the distribution network, and the specifications of the power switch casing can be upgraded and modified to meet the application needs of explosion-proof sites.
3. Small size and good airtightness
Many people have the impression that gas-insulated switchgear is small in size and has very good airtightness. The design of modern charging cabinets has developed towards miniaturization and technological advancement, and they have very high adaptability to various environments encountered in rail transit. Rail transit can also ensure the safe operation of electricity by enhancing the rated withstand voltage capability of the insulation layer.
Therefore, the widespread application of gas-insulated switchgear in rail transit is not only because it uses epoxy resin casting cover with high safety, but also because its power switch is equipped with explosion-proof devices, and it has application characteristics such as small size and good airtightness. At the same time, in recent years, the functions and application scope of gas-insulated switchgear have been comprehensively expanded, and some gas-insulated switchgears that are popular among customers have become the focus in the field of transportation distribution.
Beijing Qingchang Electric Power Technology Co., Ltd. - Expert in ring main unit manufacturing
Inflatable cabinet, power distribution in the transportation industry, ring network cabinet manufacturer, public facility power distribution, SF6 gas insulated ring network cabinet
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