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, in line with the IEC norm. It can be equipped either with 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, vacuum or 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

  • Removable breakers and voltage transformers

  • Customized and settable digital counters and protection and control relays

  • Standard or digital synoptics

  • SCADA system integration

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

  • 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

Documents
Dimension
Link Download
MV ATR switchgear catalogue
2.19 MB

Data Sheet ATR

    • Rated voltage

    • kV

    • 12

    • 17,5

    • 24

    • 36

    • Rated voltage at industrial frequency

    • 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

    • Arc-proof version IAC AFL

    • kA (1s)

    • 20*

    • 20*

    • 20*

    • 20

*Up to IP54, upon request
* Arc-proof values are based on ATR 36kV

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