Air-insulated medium-voltage switchgear NXAirS

NXAir S

Worldwide, air-insulated technology has served as a basis for an established, reliable power supply for more than 100 years. The NXAirS air-insulated medium-voltage switchgear is part of the NXAIR family and the result of many years of experience. The NXAIR family has been launched in 1998, continuously enhanced and individually adapted to the specific market requirements of the different industries and power supply companies.

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NXAirS catalog

Product information

NXAirS

NXAirS 550+

NXAirS 550+ is a compact 12kV medium-voltage air-insulated switchgear with max 550mm in width per panel. Up to 1250A feeder current and 2500A busbar current. Maximum Short-Circuit current up to 31.5kA - 4s. Its width is optimized to 550mm and Internal Arc Classified like IAC A FLR 31.5kA -1s. 

The compact design reduces the demand of installation space which leads to lower construction investment expenses. NXAirS 550+ can be combined with other NXAirS Typical this enables additional functionalities and a high flexibility.

Ratings
 
 
 
Rated Voltage
kV
up to
12
Rated frequency
Hz
 
50
Rated short-duration 1 min. power-frequency withstand voltage, (50Hz)
kV
up to
42
Rated lightning impulse withstand voltage
kV
up to
75
Rated short-circuit breaking current
kA
up to
31.5
Rated short-time withstand current, 4s
kA
up to
31.5 / 4
Rated peak withstand current
kA
up to
80
Rated short-circuit making current
kA
up to
80
Rated normal current of busbar
A
up to
2.500
Rated normal current of feeders
A
up to
1.250
Internal arc classification
 
- Wall standing arrangement

- Free-standing arrangement
A FLR up to 31.5 kA, 1s

A FLR up to 31.5 kA, 1s

NXAirS 12 kV

NXAirS 12 kV medium-voltage air-insulated switchgear with minimum 550 mm in width per panel is a modular, compact and space saving solution with up to 4000 A feeder and 4000 A busbar current. Maximum Short-Circuit current up to 40 kA - 4 s and IAC A FLR 40 kA – 1 s.

The compact design reduce the demand of installation space which leads to lower construction investment expenses. NXAirS 12 kV Typical can be combined with e.g. NXAirS 550+ this enables additional functionalities and a high flexibility.

Ratings
 
 
 
Rated Voltage
kV
up to
12
Rated frequency
Hz
 
50
Rated short-duration 1 min. power-frequency withstand voltage, (50Hz)
kV
up to
42
Rated lightning impulse withstand voltage
kV
up to
75
Rated short-circuit breaking current
kA
up to
40
Rated short-time withstand current, 4s
kA
up to
40 / 4
Rated peak withstand current
kA
up to
100
Rated short-circuit making current
kA
up to
100
Rated normal current of busbar
A
up to
4.000
Rated normal current of feeders
A
up to
4.000
Internal arc classification
 
- Wall standing arrangement

- Free-standing arrangement
A FLR up to 31.5 kA, 1s

A FLR up to 31.5 kA, 1s

NXAirS 24 kV

NXAirS 24kV ensures a high availabiltiy during lifetime via our delicate design and systematic manufacturing. It can be used in the system up to 24kV, 3150A,31.5kA. It is factory-assembled, metal-enclosed and type tested according to IEC 62271-200/GB3906.

Ratings
 
 
 
Rated Voltage
kV
up to
24
Rated frequency
Hz
 
50
Rated short-duration 1 min. power-frequency withstand voltage, (50Hz)
kV
up to
65
Rated lightning impulse withstand voltage
kV
up to
125
Rated short-circuit breaking current
kA
up to
31.5
Rated short-time withstand current, 4s
kA
up to
31.5 / 4
Rated peak withstand current
kA
up to
80
Rated short-circuit making current
kA
up to
80
Rated normal current of busbar
A
up to
3.150
Rated normal current of feeders
A
up to
3.150
Internal arc classification
 
- Wall standing arrangement

- Free-standing arrangement
A FLR up to 31.5 kA, 1s

A FLR up to 31.5 kA, 1s

NXAirS 40.5 kV

Our NXAirS 40.5kV is outstanding reliablity even under adverse conditions and ultimate safety. It can be used in the system up to 40.5kV, 3150A,31.5kA. It is factory-assembled, metal-enclosed and type tested according to IEC 62271-200/GB3906.

Ratings
 
 
 
Rated Voltage
kV
up to
40.5
Rated frequency
Hz
 
50
Rated short-duration 1 min. power-frequency withstand voltage, (50Hz)
kV
up to
95
Rated lightning impulse withstand voltage
kV
up to
190
Rated short-circuit breaking current
kA
up to
31.5
Rated short-time withstand current, 5s
kA
up to
31.5 / 5
Rated peak withstand current
kA
up to
80
Rated short-circuit making current
kA
up to
80
Rated normal current of busbar
A
up to
3.150
Rated normal current of feeders
A
up to
2.500
Internal arc classification
 
- Wall standing arrangement

- Free-standing arrangement
A FLR up to 31.5 kA, 1s

A FLR up to 31.5 kA, 1s

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