Product Overview:
NXAirS air insulated, removable metal armored medium voltage switchgear is installed in the indoor switch device, the type test, in line with GB3906 and DL404 (insulation), IEC62271-200 / VDE0671-200 and other standards.
Technical parameters:
|
Rated value
|
|
Rated voltage kV
|
7.2
|
12
|
|
Rated frequency Hz
|
50
|
50
|
|
Rated short time frequency withstand voltage (phase, ground) kV
|
32
|
42
|
|
Rated lightning impulse withstand voltage (phase to ground) kV
|
60
|
75
|
|
Rated short circuit breaking current (max) kA
|
40
|
40
|
|
Rated short circuit closing current (max) kA
|
110
|
110
|
|
Rated bus current (max) A
|
3150
|
3150
|
|
Degree of protection (standard)
|
IP4X
|
IP4X
|
|
size
|
|
Width （mm）
|
≦2500A
|
800
|
|
3150A
|
1000
|
|
Height （mm）
|
Standard cabinet height
|
2215
|
|
Depth（mm）
|
≦31.5kA（single bus）
|
1350
|
|
≦40kA（single bus）
|
1450
|
the technical advantages of NXAirS
1, through the type test, in line with GB3906 and DL404 (insulation), IEC62271-200 standard
2, modular structure, each compartment has an independent pressure release channel (high pressure room, bus room, cable room and low pressure room can be replaced separately)
3, the steel plate between the compartments can withstand the internal pressure of the gas generated by the arc, the switch cabinet internal arc consistent with the IAC A FLR standard
4, all operations must be carried out in the case of high pressure chamber door closed, high pressure chamber door with a reliable chain
5, reliable "five anti" mechanical interlocking institutions
typical use
NXAirS air insulated, removable metal armored medium voltage switchgear for substations and power distribution systems, mainly for 7.2-12kV primary distribution system.
1, petroleum, chemical, metallurgy, machinery, textile, pharmaceutical industry
2, rail transportation, water supply, sewage treatment works
3, power supply company
4, high-rise buildings, commercial buildings, hospitals, research institutions
