Switchgear MV AIS – ATR

ATR is an air-insulated (AIS), metal enclosed medium-voltage (MV) switchgear, mainly used for secondary distribution power systems. It is also used in special configurations for primary distribution power systems. It is designed and standardized for indoor installations. It can be equipped either with SF6 gas-insulated load-break switches, or with an air-insulated disconnector for compartments equipped with a switch, according to the different configurations.

Technical Features
  • Front or back access

  • Installation of multi-brand breakers, air insulated (AIS) or SF6 gas insulated

  • 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

  • Withdrawable breakers and voltage transformers

  • Protection and control relay, and customized and settable digital counters

  • Static or digital synoptics

  • Digital option to reduce wiring in order to maximize performance

  • SCADA system integration

  • Integration of the thermal control system on bars and breakers, upon request

  • Integration of integration of internal-arc protection systems, upon request

  • Integration of fast transfer systems, frequency and load-shedding control, upon request

Advantages
  • Tailor-made product

  • Interchangeable breakers

  • Remote control

  • Easy ordinary and extraordinary maintenance, thanks to front accessibility

  • High safety level for the operators involved

  • Short construction and delivery times

Applications
  • Oil & gas

  • Smart grid

  • Utility on primary distribution grids

  • Mobile substations

  • Photovoltaic plants

  • Wind power plants

  • Hydroelectric power stations

  • Other electric energy generation plants

Data Sheet ATR

    • 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

    • 400

    • 630

    • 1250

    • 2000

    • 2500

    • 400

    • 630

    • 1250

    • 2000

    • 2500

    • 400

    • 630

    • 1250

    • 2000

    • 2500

    • 400

    • 630

    • 1250

    • 2000

    • 2500

    • Busbar

    • A

    • 630

    • 1250

    • 630

    • 1250

    • 630

    • 1250

    • 630

    • 1250

    • Short time rated current

    • kA (1s)

    • 12,5

    • 16

    • 25

    • 12,5

    • 16

    • 25

    • 12,5

    • 16

    • 25

    • 12,5

    • 16

    • 25

    • 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 (LSC)

    • LSC2A

    • LSC2A

    • LSC2A

    • LSC2A

    • Loss of service continuity classes without switch device

    • LSC1

    • LSC1

    • LSC1

    • LSC1

    • IAC class including cable box compartment and external busbar compartment

    • IAC A
      F-FL
      FLR

    • IAC A
      F-FL
      FLR

    • IAC A
      F-FL
      FLR

    • IAC A
      F-FL
      FLR

*Up to IP54, upon request

Related projects to Switchgear MV AIS – ATR

Compact STC-Box and Medium-Voltage (MV) Switchgears

Tripoli (Libya)

The project has included the design and construction of n. 3 compact STC-Box substations, aiming to increase electrification in Libya.

Supply of equipment for the energy block in the National Centre

Artemisa (Cuba)

The project, carried out in the industrial district called “National Center” located in Artemisa, has consisted of the supply of materials, products and systems, for the installation of medium-voltage distribution STC-Box shelters.