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Product Manual 2025 (V1.3)
well-designed Craftsmanshi Personalized Use confidence
1 . SEH-12, SNR01-12, SNR01-12-VVV D ry air insulated metal enclosed switchgear
SEH-12 (state grid standardization)
Product technical features
Access line cabinet Pt cupboard
Dry air insulation,
vacuum interruption
Gwp is 0, environmentally friendly, no sf6 and its
decomposition products;
Self-development It has a number of invention and utility model patents.
The air box uses epoxy resin with higher thermal aging
temperature as the insulation material, and no solid
sealing, semi-solid sealing and plastic parts and other
composite insulation to ensure that the product has low
partial discharge and good reliability during long-term
operation;
Reliable mechanical,
electrical interlocking
and anti-internal arc
design
Operation and maintenance personnel operation safety;
Building block design Flexible scheme, easy to expand, simple on-site
installation, easy maintenance;
Good environmental
adaptability
Suitable for high altitude, high salt fog, high dust and
high humidity areas;
Adapt to standards Comply with gb, dl and iec standards.
SNR01-12 (compact) Product technical parameters table
Order
number Project Unit Parameter
1 Rated voltage kV 12
2 Rated frequency Hz 50/60
3 Rated current A 630
4 Rated short circuit breaking
current
kA 20
5 Rated power frequency short time
withstand voltage (1min)
kV 42/48
6 Rated lightning impulse withstand
voltage (peak)
kV 75/85
1
SNR01-12-VVV (conventional box
type)
7 Insulating gas / Dry air
8 Gas pressure (abs) MPa 0.10/0.11/0.12
9
Rated short time withstand current
and duration
kA/s 20/4
10 Rated peak withstand current kA 50
11 Structural style / C -GIS
12 Gas chamber structure / Single chamber
13
External
dimensions
(depth ×
width ×
height)
SEH-12 mm×mm×mm
850×420×2000
SNR01-12 785×350×1600
SNR01-12VVV 780×1050×1600
2 . N2C (SEG) -12 D ry air insulated metal closed switchgear
N2C(SEG)-12
Product technical features
Access line cabinet
Pressure
transformer (pt)
cabinet
Dry air insulation,
vacuum interruption
Gwp is 0, environmentally friendly, no sf6 and its
decomposition products;
Self-development It has a number of invention and utility model patents,
good insulation performance, 0 table pressure power
frequency withstand voltage up to 42kv;
Reliable mechanical,
electrical interlocking
and anti-internal arc
design
Operation and maintenance personnel operation
safety;
Building block design Flexible scheme, easy to expand, simple on-site
installation, easy maintenance;
Good environmental
adaptability
Suitable for high altitude, high salt fog, high dust and
high humidity areas;
Adapt to standards Meet gb, dl and iec standards.
2
Segmented circuit
breaker cabinet
Segmented
isolation cabinet Product technical parameters table
Order
number Project Unit Parameter
1 Rated voltage kV 12
2 Rated frequency Hz 50/60
3 Rated current A 1250
4 Rated short circuit breaking
current
kA 31.5
5
Rated short-time withstand
voltage at power frequency
(1min)
kV 42/48
6 Rated lightning impulse
withstand voltage (peak)
kV 75/85
7 Insulating gas / Dry air
8 Gas pressure (abs) MPa 0.10/0.11/0.12
9
Rated short time withstand
current and duration
kA/s 31.5/4
10 Rated peak withstand current kA 80
11 Structural style / C -GIS
12 Gas chamber structure / Single chamber
13 External dimensions (depth ×
width× height) mm×mm×mm 980×500×2250
3
3 . SNC01-17.5 Dry air insulated metal closed switchgear
SNC01-17.5
Product technical features
Access line cabinet
Pressure
transformer (pt)
cabinet
Dry air insulation,
vacuum interruption
Gwp is 0, environmentally friendly, no sf6 and its
decomposition products;
Self-development It has a number of invention and utility model patents,
good insulation performance, 0 table pressure power
frequency withstand voltage up to 42kv;
Reliable mechanical,
electrical interlocking
and anti-internal arc
design
Operation and maintenance personnel operation safety;
Building block design Flexible scheme, easy to expand, simple on-site
installation, easy maintenance;
Good environmental
adaptability
Suitable for high altitude, high salt fog, high dust and
high humidity areas;
Adapt to standards Meet gb, dl and iec standards.
Dry air insulation,
vacuum interruption
Gwp is 0, environmentally friendly, no sf6 and its
decomposition products;
Segmented circuit
breaker cabinet
Segmented
isolation cabinet Product technical parameters table
Order
numbe
r
Project Unit Parameter
1 Rated voltage kV 17.5
2 Rated frequency Hz 50（60）
3 Rated current A 1250
4 Rated short circuit breaking
current
kA 31.5
5
Rated short-time withstand
voltage at power frequency
(1min)
kV 38/45
6 Rated lightning impulse
withstand voltage (peak)
kV 95/110
4
7 Insulating gas / Dry air
8 Gas pressure (abs) MPa 0.10/0.11/0.12
9
Rated short time withstand
current and duration kA/s 31.5/4
10 Rated peak withstand current kA 82
11 Structural style / C-GIS
12 Gas chamber structure / Single chamber
13 External dimensions (depth ×
width× height) mmxmmxmm 980×500×2250
5
4.SNC01-24 Dry air insulated metal closed switchgear
SNC01-24
Product technical features
Access line cabinet
Pressure
transformer (pt)
cabinet
Dry air insulation,
vacuum interruption
Gwp is 0, environmentally friendly, no sf6 and its
decomposition products;
Self-development It has a number of invention and utility model patents,
good insulation performance, 0 table pressure power
frequency withstand voltage up to 42kv;
Reliable mechanical,
electrical interlocking
and anti-internal arc
design
Operation and maintenance personnel operation
safety;
Building block design Flexible scheme, easy to expand, simple on-site
installation, easy maintenance;
Good environmental
adaptability
Suitable for high altitude, high salt fog, high dust and
high humidity areas;
Adapt to standards Meet gb, dl and iec standards.
Dry air insulation,
vacuum interruption
Gwp is 0, environmentally friendly, no sf6 and its
decomposition products;
Segmented circuit
breaker cabinet
Segmented
isolation cabinet Product technical parameters table
Order
numbe
r
Project Unit Parameter
1 Rated voltage kV 24
2 Rated frequency Hz 50（60）
3 Rated current A 1250
4 Rated short circuit breaking
current
kA 31.5
5
Rated short-time withstand
voltage at power frequency
(1min)
kV 65/79
6 Rated lightning impulse
withstand voltage (peak)
kV 125/145
6
7 Insulating gas / Dry air
8 Gas pressure (abs) MPa 0.10/0.11/0.12
9
Rated short time withstand
current and duration kA/s 31.5/4
10 Rated peak withstand current kA 82
11 Structural style / C-GIS
12 Gas chamber structure / Single chamber
13 External dimensions (depth ×
width× height) mmxmmxmm 980×600×2250
7
5.SNG01-12 D ry air insulated metal closed switchgear
SNG01-12
Product technical features
Entry cabinet Outlets
self-development
Using GIS structure, natural air cooling (1.1X4000A),
light weight, width 900mm (input line, contact
cabinet), 600mm (output line cabinet, PT cabinet);
Dry air insulation,
vacuum interruption
GWP is 0, environmentally friendly, no SF6 and its
decomposition products;
Isolation switch and
circuit breaker gas
chamber are separated
It guarantees the reliability of power supply and can
be widely used in 110kV substation 12kV outgoing
line as an alternative to central cabinet;
building block design
Flexible scheme, easy to expand, simple on-site
installation, easy maintenance;
Reliable mechanical,
electrical interlocking
and anti-internal arc
design
Operation and maintenance personnel operation
safety;
Good environmental
adaptability
Suitable for high altitude, high salt fog, high dust and
high humidity areas;
Adapt to standards Meet GB, DL and IEC standards.
Segmented circuit
breaker cabinet
Segmented
isolation cabinet Product technical parameters table
order
num
ber
project unit parameter
1 Rated voltage kV 12
2 Rated frequency Hz 50/60
3 Rated current A 1250/2500/3150/4000
4 Rated short circuit breaking
current
kA 40
5
Rated short-time withstand
voltage at power frequency
(1min)
kV 42/48
6 Rated lightning impulse withstand
voltage (peak)
kV 75/85
8
7 Insulating gas / Dry air
8 Gas pressure MPa
0.17(0.30)/0.18(0.32)/0.20
(0.35)
9
Rated short time withstand
current and duration
kA/s 40/4
10 Rated peak withstand current kA 100
11 Structural style / GIS
12 Gas chamber structure / Double chamber
13 External dimensions (depth ×
width × height) mm×mm×mm 1900×900(600)×2400
9
6 . SNG11 (2)-27.5 Dry air insulated metal-enclosed switchgear
SNG11(2)-27.5
Product technical features Single phase single pole incoming and
outgoing cabinet
Self-development
The GIS structure is compact and lightweight; the
single-phase single-pole cabinet is wide
500mm, single phase double pole cabinet width 700mm;
Dry air insulation,
vacuum interruption
GWP is 0, environmentally friendly, no SF6 and its
decomposition products;
The gas chamber of the isolating switch is separated from
the gas chamber of the circuit breaker to ensure reliable
power supply
Dual chamber, modular
design
Sex; the scheme is flexible, easy to expand, and the
incoming and outgoing lines can meet four groups and more The requirements; simple on-site installation, easy
maintenance;
Reliable mechanical and
electrical interlocks
Operation and maintenance personnel operation safety;
Anti-internal arc design
Good environmental
adaptability
Suitable for high altitude, high salt fog, high dust and
high humidity areas;
Adapt to standards Meet GB, TB, DL and IEC standards.
Single phase bipolar incoming and
outgoing cabinet Product technical parameter table
order
number project unit parameter
1 Rated voltage kV 27.5/2X27.5
2 Rated frequency Hz 50/60
3 Rated current A 1250/2500
4
Rated short circuit
breaking current
kA 31.5
5
Rated short-time
withstand voltage at
power frequency (1min)
kV 95/118
6 Rated lightning impulse
withstand voltage (peak)
kV 200/220
10
7 Insulating gas / Dry air
8 Gas pressure (abs) MPa 0.17(0.30)/0.18(0.31)/0.20
(0.35)
9
Rated short time withstand
current and duration
kA/s 31.5/4
10 Rated peak withstand
current
kA 80
11 structural style / GIS
12 Gas chamber structure / Multiple chambers
13
External dimensions
(depth× width× height) mm×mm×mm 1400×700(500)×2250
7 . SNG21-40.5 Dry air insulated metal-enclosed switchgear
SNG21-40.5
Product technical features
Access line cabinet
self-development
Using GIS structure, compact structure, light weight,
cabinet width 800mm;
Dry air insulation,
vacuum interruption
GWP is 0, environmentally friendly, no SF6 and its
decomposition products;
The gas chamber of the isolating switch is separated from
the gas chamber of the circuit breaker to ensure reliable
power supply
Dual chambers, modular
design
Sex; flexible scheme, easy to expand; simple on-site
installation, maintenance
convenience;
Reliable mechanical and
electrical interlocks
Operation and maintenance personnel operation safety;
Anti internal arc design
Good environmental
adaptability
Suitable for high altitude, high salt fog, high dust and
high humidity areas;
Adapt to standards Meet GB, DL and IEC standards.
11
Product technical parameters table
order
number project unit parameter
1 Rated voltage kV 40.5
2 Rated frequency Hz 50/60
3 Rated current A 1250/2500
4
Rated short circuit
breaking current
kA 31.5
5
Rated power frequency
short time withstand
voltage (1min)
kV 95/118
6 Rated lightning impulse
withstand voltage (peak)
kV 185/215
7 Insulating gas / Dry air
8 Gas pressure (abs) MPa 0.17(0.30)/0.18(0.31)/0.20
(0.35)
9
Rated short time withstand
current and duration
kA/s 31.5/4
10 Rated peak withstand
current
kA 80
11 Structural style / GIS
12 Gas chamber structure / Multiple chambers
13
External dimensions
(depth× width × height) mm×mm×mm 1500×800×2560
12
8 . SNG31-72.5 Dry air insulated metal enclosed switchgear
SNG31-72.5
Product technical features
One in, one out One in, two out
Using GIS structure, the structure is compact, only
1040mm wide and heavy
Self-development
Quantity 1.8t; different from C-GIS structure, the
product is used for long-term partial discharge
Low, high reliability;
Dry air insulation,
vacuum interruption
GWP is 0, environmentally friendly, no SF6 and its
decomposition products;
building block design
Flexible scheme, simple on-site installation, easy
maintenance;
Reliable mechanical and
electrical interlocks
Operation safety of operation personnel;
Anti internal arc design
Adapt to standards Meet GB, DL and IEC standards.
One in, two out Product technical parameters table
order
number project unit parameter
1 Rated voltage kV 72.5
2 Rated frequency Hz 50/60
3 Rated current A 1250
4 Rated short circuit breaking
current
kA 31.5
5
Rated short-time withstand
voltage at power frequency
(1min)
kV 160/160+42
6 Rated lightning impulse
withstand voltage (peak)
kV 380/380+59
7 Insulating gas / Dry air
8 Gas pressure (abs) MPa 0.42/0.43/0.45
9
Rated short time withstand
current and duration
kA/s 31.5/3
10 Rated peak withstand current kA 80
11 Structural style / GIS
12 Gas chamber structure / Multiple chambers
13 External dimensions mm×mm×mm 2620×1040×2490
13
Rated
voltage
Rated current, breaking current
630A，20kA 1250A，31.5kA 2500，31.5kA 4000A，40kA
12kV
SHE-12 SNR01-12 SNR01-12-VVV N2C(SEG)-12 SNG01-12
17.5kV
SNC01-17.5(Z)/T1250-31.5
24kV
SNC01-24/T1250-31.5
27.5kV
SNG11(2)-27.5/T2500-31.5
40.5kV
SNG21-40.5/T2500-31.5
72.5kV
SNG31-72.5/T1250-31.5
14
