Switchgear MV GIS – ATR Ring

ATR -Ring is a metal enclosed switchgear for the medium-voltage (MV) secondary distribution, consisting of a SF6 gas-insulated (GIS) sealed stainless-steel container. It is used in power grids with ring configuration and it is available either in compact or in modular versions.

Technical Features
  • Closure sealed integrity throughout its entire lifecycle

  • Installation on base frame or on concrete basement

  • Operators’ safety during operations and maintenance according to Leg. Decree no. 81/2008 and legislation IEC 62271-200

  • Protection and control relay and customized and settable digital counters

  • Static or digital synoptic

  • Digital option to reduce wiring in order to maximize performance

  • SCADA system integration

Advantages
  • Compactness and reduced dimensions

  • Modularity and configuration flexibility

  • Tailor-made product, integrating the accessories required by the client

  • High reliability and reduced operator interventions

  • High safety level for the operators involved

Applications
  • Oil & gas

  • Railway sector

  • Smart grid

  • Utility on primary distribution grids

  • Mobile substations

  • Photovoltaic plants

  • Wind power stations

  • Hydroelectric power stations

  • Other electric energy generation plants

Data Sheet ATR-Ring

    • Rated Voltage

    • kV

    • 12

    • 17,5

    • 24

    • 36

    • Rated Voltage insulation

    • kV (1min)

    • 28

    • 38

    • 50

    • 70

    • Impulse Test Voltage (BIL)

    • kV

    • 75

    • 95

    • 125

    • 170

    • Main bars rated current

    • A

    • Up to
      1250

    • Up to
      1250

    • Up to
      1250

    • Up to
      630

    • Short-time rated current

    • kA (1s)

    • Up to
      25

    • Up to
      25

    • Up to
      25

    • Up to
      20

    • Rated frequency

    • Hz

    • 50-60

    • 50-60

    • 50-60

    • 50-60

    • IP Protection degree

    • IP4X*

    • IP4X*

    • IP4X*

    • IP4X*

    • Partition Class (switchghear classification)

    • PM
      partition
      metallic

    • PM
      partition
      metallic

    • PM
      partition
      metallic

    • PM
      partition
      metallic

    • Loss of service continuity classes (LCS)

    • LSC2

    • LSC2

    • LSC2

    • LSC2

    • Loss of service continuity classes without switch device

    • LSC1

    • LSC1

    • LSC1

    • LSC1

    • IAC class including cable box compartment and external busbar compartment

    • IAC
      AF-FL
      FLR

    • IAC
      AF-FL
      FLR

    • IAC
      AF-FL
      FLR

    • IAC
      AF-FL
      FLR

*Up to IP54, upon request

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