MV Metal Enclosed Switchgear

We offer air-insulated (AIS) and metal enclosed medium-voltage (MV) switchgears, which are mainly used for secondary distribution power systems. They are also used in special configurations for primary distribution power systems. they designed and standardized for indoor installations, in line with the IEC standards. they 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 IEC 62271-200 standards
  • 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

Avantanges

  • 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

Datasheet

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 busbar rated current

A

400
630
1250
1600
2000
2500

400
630
1250
1600
2000
2500

400
630
1250
1600
2000
2500

400
630
1250
1600
2000
2500

Busbar

A

630
1250

630
1250

630
1250

630
1250

Short time rated current

kA (3s)

12,5

16

20

25

12,5

16

20

25

12,5

16

20

25

12,5

16

20

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 (LSC)

 

LSC2A

LSC2A

LSC2A

LSC2A

Loss of service continuity classes without switch device

 

LSC1

LSC1

LSC1

LSC1

Arc-proof version IAC AFLR

kA (1s)

Up to 25

Up to 25

Up to 25

Up to 25