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Switchgear
Gas Insulated Switchgear

Gas Insulated Switchgear

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Gas Insulated Switchgear
Description
Gas Insulated Switchgear (GIS) offers high reliability, safety, and maintenance-free features in a much smaller space, compared with conventional switchgear.
Features
  • High reliability
    The live parts are sealed in metal enclosures filled with pure SF6 gas. Thus, it is protected from contamination by smoke, chemical fumes, dust or salt-laden spray or as ingress of small animals. This protection prevents the inside components from oxidation and rust caused by oxygen and moisture.
  • Space reduction
    A medium voltage GIS can be installed into a space about half that required for a conventional type air-insulated metal-clad switchgear.
  • High safety
    All the live parts are fully enclosed in grounded metal enclosures. Thus, there is no danger of an electric shock. SF6 is a inert, non-flammable, non-toxic, and odorless gas used as an insulation and arc extinguishing medium. Therefore, it is safe for personnel and there is no fire hazard.
  • Reduced maintenance costs
    Since the live parts are fully enclosed in an oxygen-free and moisture-free environment, there is no aging decay. This leads to a reduction in labor costs for maintenance and inspection.
  • Short installation time
    A GIS of about four panels can be transported fully constructed. The GIS can be energized by connecting external power cables to the pre-fabricated plug-in type terminals. Thus, shortening installation time.
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