Miniature GIS & RMU

A Gas Insulated Switchgear (GIS) and Ring Main Unit (RMU) are types of electrical distribution equipment used to to insulate and protect its various components. They are integral in ensuring a reliable and efficient supply of electrical power, particularly in renewable energy installations where stability and efficiency are paramount.

Miniaturized 10kV switchgear using solid, SF6 gas and air as insulation agents is widely used for industrial and civil cable ring and power supply terminal, and is suitable for power acceptance and distribution in power systems as miniature secondary substation, sub-section post, residential quarter in urban areas and tall buildings.

Key Features:

  • Eco-friendly and Pollution-Free:
    • Environmentally friendly and recyclable materials.
    • The RMU series employs pollution-free materials and solid seal pole technology for zero pollution in operation.
  • Full Insulation and Sealing:
    • RMU achieves full insulation and sealing with a protection grade of IP67.
    • GIS seals all high voltage live parts in a 304 stainless steel enclosure, also achieving IP67 protection grade.
  • Compact and Modular Design:
    • Both series feature a compact design for space efficiency.
    • Modular construction facilitates convenient installation, commissioning, and flexible configuration.
    • RMU allows for unlimited extension of unit structures, and GIS supports up to 6-switch circuits in one cabinet.
  • High Reliability and Maintenance-Free:
    • Both series are designed to be unaffected by environmental conditions, ensuring high reliability.
    • Both offer maintenance-free operation, contributing to a long working life.
  • Advanced Protection and Safety:
    • GIS includes reliable mechanical anti-misoperation interlocking devices, pressure relief passages, and arc failure protection, passing the 20kA/1s internal arc test.
  • High Degree of Automation and Intelligent Interface:
    • Both series are equipped with intelligent interfaces supporting advanced automation.
    • GIS supports DTU terminals for intelligent network distribution functions, including protection, remote measuring, communication, control, online monitoring, and fault handling.

Description

Key Features:

  • Eco-friendly and Pollution-Free:
    • Environmentally friendly and recyclable materials.
    • The RMU series employs pollution-free materials and solid seal pole technology for zero pollution in operation.
  • Full Insulation and Sealing:
    • RMU achieves full insulation and sealing with a protection grade of IP67.
    • GIS seals all high voltage live parts in a 304 stainless steel enclosure, also achieving IP67 protection grade.
  • Compact and Modular Design:
    • Both series feature a compact design for space efficiency.
    • Modular construction facilitates convenient installation, commissioning, and flexible configuration.
    • RMU allows for unlimited extension of unit structures, and GIS supports up to 6-switch circuits in one cabinet.
  • High Reliability and Maintenance-Free:
    • Both series are designed to be unaffected by environmental conditions, ensuring high reliability.
    • Both offer maintenance-free operation, contributing to a long working life.
  • Advanced Protection and Safety:
    • GIS includes reliable mechanical anti-misoperation interlocking devices, pressure relief passages, and arc failure protection, passing the 20kA/1s internal arc test.
  • High Degree of Automation and Intelligent Interface:
    • Both series are equipped with intelligent interfaces supporting advanced automation.
    • GIS supports DTU terminals for intelligent network distribution functions, including protection, remote measuring, communication, control, online monitoring, and fault handling.

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