Products

Air-Insulated Switchgear (AIS) NXAIR for rated voltages of 20/10(6) kV, up to 3150A

Air-Insulated Switchgear (AIS) NXAIR family for rated voltages of 20/10(6) kV, up to 3150A represents factory-assembled, metal-enclosed, type-tested circuit-breaker switchgear, used for indoor installation mainly at the primary distribution level, e.g.:

Public Power Supply

Power supply companies
Energy producers
System Operators

Industry and Offshore

Cement industry
Steel industry
Mining industry
Petroleum industry and offshore installations
Diesel power plants
Emergency power supply installations
Electrochemical plants and chemical industry
Pipeline installations

Air-Insulated Medium-Voltage Switchgear NXAIR is factory-assembled, type-tested, metal-enclosed and metal-clad switchgear for indoor installation according to IEC 62261-200.

All switchgear types of the NXAIR family are approved with internal arc classification IAC A FLR, loss of service continuity category LSC 2B and partition class PM.

Switchgear with SION vacuum circuit-breakers has the benefits of safety, reliability, increased productivity and efficiency.

Air-Insulated Switchgear is time-tested by many years of practical experience in operation worldwide.

Customer benefit features

Smooth Operation

As insulating medium, air is always available
Factory-assembled, type-tested switchgear
Use of maintenance-free vacuum circuit-breakers or contactors
Type testing of the vacuum circuit-breaker and the make-proof earthing switch in the panel
Pressure-resistant partitions (NXAIR technology)
Flexibility regarding the low-voltage equipment (removable compartment, plug-in wires).

Optimal Personal Safety

All operations with closed high-voltage door
Logical mechanical interlocks prevent maloperation
Switching, earthing and disconnecting devices as one functional unit
Unambiguous position indicators and control elements on the high-voltage door
Confinement of an internal arc to the respective compartment up to 50 kA, 1 s.

Increases Productivity

Loss of service continuity category LSC 2B (separate partitions for busbar, connection and switching-device compartments)
Positively driven shutters
Use of standardized block-type current transformers
Cable testing without isolating the busbar
Functions such as establishment of the isolating distance, as well as feeder and busbar earthing, can be completely controlled from remote
Confinement of an internal arc to the respective compartment
Control cables in metallic wiring ducts.

Saves Money

Use of maintenance-free vacuum circuit-breakers or contactors
Maintenance-free switchgear within up to 10 years
Interruption of operation reduced to a minimum by logical mechanical interlocking system
Minimized space requirements (reduced building investments) due to compact design and flexible cable connection options and / or flexible pressure relief duct systems.