Siemens NXAirS-12kV Air Insulation Metal Enclosed Medium Voltage Switchgear

Siemens NXAirS-12kV Air Insulation Metal Enclosed Medium Voltage Switchgear is factory-assembled, type-tested, metal-enclosed and metal-clad switchgear for indoor installation.

Product Details

Siemens NXAirS-12kV Air Insulation Metal Enclosed Medium Voltage Switchgear

Siemens NXAirS-12kV Air Insulation Metal Enclosed Medium Voltage Switchgear is factory-assembled, type-tested, metal-enclosed and metal-clad switchgear for indoor installation.

 

Features

●No handling of insulating gas and low and high pressure monitoring required

As insulating medium, air is always available

Use of standardized block-type current transformers

Use of standard components available worldwide, locally manufactured components, and consideration of regional standards

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

Flexibility regarding the low-voltage equipment (removable compartment, plug-in wires)

Quality assurance in accordance with DIN EN ISO 9001.

Logical mechanical interlocking system

 

Benefits

Smooth operation

Exemplary availability and optimal safety.

Increases productivity

Preserves the environment

 

Application

Public power supply

Power plant

Cement industry

Iron and steel works

Mining industry

Textile, paper and food industries

Chemical Industry

Petroleum Industry

Pipeline installations

Offshore oil devices

Electrochemical plants

Coal exploitation

 

Technical Parameters

Rated

voltage

kV

7.2

12

17.5

frequency

Hz

50/60

50/60

50/60

Short-duration power-frequency withstand voltage   (phase-to-phase, phase-to-earth)

kV

20

28

38

lightning impulse withstand voltage (phase-to-phase,   phase-to-earth)

kV

60

75

95

short-circuit breaking current

max.kA

 

40

40

40

short-time withstand current, 3s

max.kA

 

40

40

40

short-circuit making current

max.kA

100/104

100/104

100/104

peak withstand current

max.kA

100/104

100/104

100/104

normal current of busbar

max.A

4000

4000

4000

normal current of feeders

with circuit-breaker

max.A

4000

4000

4000

with contactor

max.A

400

400

-

with disconnector link

max.A

4000

4000

4000

bus sectionalizer

max.A

4000

4000

4000

busbar connection panel

max.A

4000

4000

4000


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