Sino-German CGIS (Shanghai) Electrics Ltd.
Add: 868 Jiahang Rd., Jiading, Shanghai
201808 P. R. China
Tel：+86-21-69900886 69900810
Fax：+86-21-69900254
Http://www.cgis.cn
E-mail：cgis@cgis.cn
We reserve the right to make technical changes or modify the contents of this document without
prior notice. All the agreed particulars shall prevail. All rights reserved.
CGIS (Shanghai) Electrics Ltd. Copyright
C
2006.08 CGIS-EC-008-08-2006
N2S / N2X
Environment-friendly Gas Insulated Metal-enclosed Switchgear
N2X
N2SN2X
Contents
SINO-GERMAN CGIS (SHANGHAI) ELECTRICS LTD.
N2S/N2X
General
1
N2S/N2X
Applications
2
N2S/N2X
Product Advantages
3
N2S/N2X
Main Components
4
N2S
Technical Specifications
5
N2S
Panel Structure
6
N2S
OEM Functional Unit
7/8
N2S
Typical Schemes
9/11
N2X
Technical Specifications
12
N2X
Panel Structure
13
N2X
OEM Functional Unit
14/15
N2X
Typical Schemes
16/18
N2S/N2X
Application Schemes
19
N2S/N2X
Foundation Frame
20/23
N2S/N2X
General
Normal Operating
Conditions
About CGIS
Complying with:
Busbar connector between
Ambient temperature:
CGIS (Shanghai) Electrics Ltd.
China standards: GB3906, GB/
panels provides the easy
Maximum temperature +40℃
Is a hi-tech enterprise set up
T11022, DL/T593, DL/T404 etc.
i n s t a l l a t i o n a n d f l e x i b l e Minimum temperature －25℃
extension, which eliminates
Altitude
the tre a t m e n t in the gas
Up to 1000m*
system.
Environment
W o r l d first-clas s m a n u The installation site shall not
facturing technology such as
suffer
distinctive pollution
laser welding, laser cutting
by Shanghai Tianling Switchgear
International standards:
IEC62271-200 and IEC62271100 etc.
Environment-friendly switchgear-non or less SF6.
mainly engages in the business
of research, development,
manufacture and sales 12kV40.5kV meta l-enclosed gas
and helium leakage detecting
caused by corrosive or
insulated switchgear. The
dimension and less space
technology imported fr o m
flammable gas, vapor etc.
leading products, N2S/N2X
requirement. The width of
Germany ensures the strict
500mm while the width of
40.5kV panel is only 600mm.
gas insulated switchgear are
German process and non-
*Note: Please consult the
designed by German switchgear
fault operation of switchgear.
manufacturer when the
specialists, integrated with
altitude >1000m
new material, new process
All high voltage elements are
and new technology such as
completely sealed from ambient
the most advanced computer
air and therefore not influenced
by
the environment.
Any
accidents caused by congeal
dew, dust, small animals or
If the operating conditions
exceed the normal condi-
forever. The VEG vacuum circuit
tions listed in GB3906 or IEC
breaker used in this switchgear
62271-200, please contact
Maglev Train
Subway
our technical department.
technology in electric power
system, high voltage insulation
technology, gas-tight technology
and so on. The products
have the advantages of high
reliability, maintenance free,
less space
requirements,
vacuum interrupter technology,
environmentally friendly to meet
the embedded pole design and
the requirements of distribution
a reliable magnetic or spring
automation and high reliable
Applications
operation. All the products have
operated manually or by a
The products have been widely
XIHARI, the China national
motor drive.
used in the fields of electric
laboratory which is the member
Compact gas tank structure.
power, mine, oil, metallurgy,
of international organization
Suitable schemes can be
railway, highway, harbor, archi-
CNAL as well as IPH, German
chosen depending on the
tecture and petrochemistry etc.
national laboratory.
detailed requirements to
The significant projects CGIS
driving mechanism.
Grand Theatre
control technology, and sensor
Special Operating
Conditions
chemical vapors are excluded
combines t h e most modern
Applications
Co.,Ltd and DECOM GmbH and
Compact switchgear : Small
12kV and 24kV panel is only
N2S/N2X
Substation
p a s s e d t h e t y p e t e s t s in
3-position switch can be
ensure t he reli a b l e a n d
achieved are Shanghai Shimao
economic operation.
North Bund Plaza, Shanghai
Intelligent control and protection
Yanchuang Substation, Shanghai
unit has varied function such
Zhongxia Substation, Shanghai
as control, protection, measure-
Qingnan Substation etc.
Architecture
Bridge
Harbor
m e n t a n d c o m m u n i c a t i o n,
Petrochemistry
meeting the requirements of
distribution automation.
Railway
Reliable mechanical and electric interlocking has prevented
the maloperation effectively.
1
Highway
2
N2S/N2X
Product Advantages
EnvironmentFriendly
N2S/N2X
Main Components
The Middle PanelWithdrawable
OEM Gas Tank
IST 3-position Switch
VEG Embedded
Pole Circuit Breaker
Earthing function can be realized with 3-
SF6 is one of the six kinds of
position switch and circuit breaker.
gases which have been regarded
1.Vacuum
circuit
breaker
has
as the restricted emission gas by
t h a n conventional earthing switch,
Kyoto Protocol. According to the
which makes earthing short-circuit
research by scientists, the green
become more easil y v i a vacuum
house effect of SF6 is 23,900
circuit breaker.
times more than that of CO2. It
2.More operations can be done for fault
will remain up to 3200 years
current.
N2S circuit breaker gas tank
after its emission to the atmos-
3.Arc is limited in the vacuum interrupter,
which reduces the exhaust of insulation
phere. Due to its good arcing
and insulation performance,
N2S 3-position Switch
N2S circuit breaker
gas.
SF6 has been using widely in
3-position switch is vertically arranged
the HV and MV electrical industry.
CGIS (Shanghai) Electrics Ltd.
engages in the business of
environmental protection by
using non or less SF6 gas
insulation. N2S/N2X gas insulated
switchgear is just designed to
meet this requirement.
for N2S and horizontally arranged for
For N2S:
N2X.
Silicon rubber bus bar connector
The cylinder type 3-position switch
is used to connect the upper
driven by motor has the functions as
gas tank, lower gas tank and
follows :
between panels.
1.Connecting, disconnecting and earthing
When replacing or maintenance
N2S busbar gas tank
a single circuit breaker or
position.
"closed" (connected); Earthing switch
remain in service.
"closed" (earthed) position.
replaced or maintained.
as N2S, but with higher
performance at lower cost.
ensures the operation can be realized
for N2S and horizontally arranged for
The middle panel can be
only in the opening position of circuit
N2X.
withdrawn while other neighbour
breaker, which prevents the maloperation.
Circuit breaker is embedded-pole
N2X gas tank
position without removing the
cables.
Provide OEM gas tank
Provide technical support
and training
After-sales service will
be provided by qualified
Driving mechanism is accessible outside
type with epoxy APG process.
the gas tank and the insulation axis driven
Driving mechanism is accessible
by motor can realize the movement of
outside the gas tank.
movable contact. Earthing switch can be
cancelled or blocked in 3-position switch
on request.
3-position switch can be operated
manually and added padlocks as per
and trained personnel to
special requirement.
OEM partners
It is equipped with mechanical position
indicator.
3
500
1200 2250
630
≥1600
800
1500 2250
980
≤1250
500
1200 2250
630
≥1600
800
1500 2250
980
≤1250
600
1500 2400
880
≥1600
800
1600 2500
1100
≤1250
500
1050 2250
530
≥1600
800
1400 2250
880
Sealed bushing is used to connect
the embedded pole of circuit breaker
≤1250
500
1050 2250
530
and the rod of driving mechanism.
≥1600
800
1400 2250
880
24
40.5
N2X Switchgear
N2X has the same function
Circuit breaker is vertically arranged
For N2S/N2X:
panels can remain in original
≤1250
N2X circuit breaker
N2S Switchgear
and the main busbar can
Weight
W
D
H
a
c
(kg)
b
(mm) (mm) (mm) Approx.
12
3.The other two positions: Disconnector
Mechanical and electrical interlocking
of N2S ensures it easy to be
Rated Rated
voltage current
position.
tank, other neighbor panels
Separate gas tank structure
Dimension & Weight of
N2S/N2X Switchgear
2.The middle position is disconnecting
outgoing cable on upper gas
Compact Design
more
advantageous in making capability
12
24
Interlocking device ensures that the
closing operation can only be realized
when the 3-position switch is in its
proper position, which prevents the
maloperation.
4
N2S
Technical Specifications
Item
No.
N2S
Panel Structure
Data (IEC/GB)
Unit
1
14
1
Rated voltage
Between phases
and to earth
2
Rated power
frequency
withstand
voltage (1min)
Rated lightning
impulse
withstand
voltage
Between phases
and to earth
3
kV
Across the
isolating distance
Across the
isolating distance
12
17.5/24
36/38/40.5
28/42
50
95
2
32/48
60
118
3
75
125
185
85
145
215
15
kV
kV
16
4
5
6
4
Rated frequency
Hz
50, 60
5
Rated current
A
630,800,1250,1600,2000,2500
6
Making single/back to back
capacitor bank current
A
630/400
400/400
400/400
7
Rated short-circuit breaking current
kA
25/31.5/40
20/25/31.5
20/25/31.5
8
Rated short-circuit making current
(peak)
kA
63/80/100
50/63/80
50/63/80
7
17
8
9
Rated short-time withstand current/
duration
18
19
10
20
11
kA/s
25/3, 31.5/3, 40/3
20/3, 25/3, 31.5/3
10
Rated peak withstand current
kA
11
Rated capacitor bank inrush making
capacity
kA
12
Rated cable-charging breaking
current
A
13
Rated operating sequences
14
Rated filling gas pressure
(abs,20℃)
MPa
0.12
15
Alarm pressure
(abs,20℃)
MPa
0.11
16
Minimum operating pressure
(abs,20℃)
MPa
0.10
17
Annual leakage rate
%/Y
18
Degree of
protection
63/80/100
20/3, 25/3, 31.5/3
50/63/80
50/63/80
21
12
22
20
23
13
25
31.5
24
50
O-0.3s-CO-3min-CO
<0.1
High voltage
live parts
IP65
Low voltage
compartment
IP4X
19
Rated voltage of auxiliary circuit
V
20
Rated power frequency withstand
voltage of auxiliary circuit (1 min)
kV
*Note: The insulating level is tested under 0.1 MPa or 1 bar (abs. 20℃) of insulating gas.
5
9
DC24, 48, 110, 220
2
AC220
1. Protection and control unit
13. Framework
2. Low voltage compartment
14. Voltage transformer (Optional)
3. Vacuum circuit breaker mechanism
15. Pressure relief of circuit breaker gas tank
4. Vacuum circuit breaker
16. Feeder bus
5. Low voltage compartment door
17. Inner-cone bushing
6. Gas density sensor
18. Inner-cone cable terminal
7. Circuit breaker gas tank
19. Plug-in surge arrester
8. 3-position switch mechanism
20. Cable
9. 3-position switch
21. Rear cover
10. Main busbar and bushing
22. Pressure relief of busbar gas tank
11. Busbar gas tank
23. Earthing busbar
12. Front cover
24. Current transformer (Optional)
6
N2S
OEM Functional Unit
OEM Functional Unit
N2S offers OEM partners the following modular functional units:
No.
Scheme
N2S
Type
1
Denomination
Incoming/outgoing panel
LNL
LNTL
2
- Cable top entry
- Cable bottom entry
Sectionalizer panel
LNCV-RD
- Panel busbar Right Direction
extensible (RD)
Connected with LNCD-LD panel
busbar at right side, and connected with system main busbar
at left side.
LNCV-LD
- Panel busbar Left Direction
extensible (LD)
Connected with LNCD-RD panel
busbar at left side, and connected with system main busbar
at right side.
Continued
Description
No.
-Include one busbar gas tank and one circuit
breaker gas tank.
-In busbar tank, there are one 3-position
switch and three groups of inner-cone bushings,
two for both-side extension of the busbar and
one for plugging to upper circuit breaker gas
tank.
-In circuit breaker tank, there are one vacuum
circuit breaker and four groups of inner-cone
bushings, three for plug-in cable terminal,
PT and surge arrester. For example, double
incoming cables and PT can be plugged from
outside of the gas tank. The other group is for
plugging to lower busbar gas tank.
-The empty bushings will be sealed by end
plugs or by white plastics covers on request.
-Earthing switch can be cancelled or blocked
if necessary.
4
-Include one busbar gas tank and one circuit
breaker gas tank.
-In busbar tank, there are one 3-position
switch and two groups of inner-cone bushings,
one for system main busbar extension
and one for plugging to upper circuit breaker
gas tank.
-In circuit breaker tank, there are one vacuum
circuit breaker and two groups of inner-cone
bushings, one for connecting with neighbour
panel busbar by plug-in type connectors and
one for plugging to lower busbar gas tank.
For example, LNCD-LD is a panel with busbar
left side extension.
-Earthing switch can be cancelled or blocked
if necessary.
Scheme
Busbar riser panel
LNCD-RD
- Panel busbar Right Direction
extensible(RD)
Connected with LNCV-LD panel
busbar at right side, and connected with system main busbar
at left side.
LNCD-LD
- Panel busbar Left Direction
extensible(LD)
Connected with LNCV-RD panel
busbar at left side, and connected with system main busbar
at right side.
-Include one busbar gas tank and one CT gas
tank.
-In busbar tank, there are one 3-position
switch and two groups of inner-cone bushings,
one for system main busbar extension
and one for plugging to upper circuit breaker
gas tank.
-In CT tank, there are three epoxy-casted CTs
and two groups of inner-cone bushings, one
for connecting with neighbour panel busbar by
plug-in type connector and one for plugging to
lower busbar gas tank. For example, LNCDLD is a panel with busbar left side extension.
-Earthing switch can be cancelled or blocked
if necessary.
Denomination
DS riser panel
LNDL
- Cable top entry
LNDTL
- Cable bottom entry
Description
-Include one busbar gas tank and one busbar
riser gas tank.
-In busbar tank, there are one 3-position
switch and two groups of inner-cone bushings,
one for system main busbar extension and one
for plugging to upper circuit breaker gas tank.
-In busbar riser tank, there are four groups
of inner-cone bushings, three for plugin cable terminal, PT and surge arrester. For
example, double incoming cables and PT can
be plugged from outside of the gas tank. The
other group is for plugging to lower busbar
gas tank.
-The empty bushings will be sealed by end
plugs or by white plastics covers on request.
-Earthing switch can be cancelled or blocked
if necessary.
5
LND-T2D
PT panel
-Include one busbar gas tank equipped with
one 3-position switch.
-In busbar tank, there are two groups of innercone bushings, one for plug-in PT and one for
plug-in surge arrester.
6
LNM
Metering panel
-Include one busbar gas tank equipped with
three epoxy-casted CTs .
-In busbar tank , there are three groups of
inner-cone bushings, one for plug-in PT and
two for system main busbar extension.
LNE
Busbar earthing panel
LNE-RD
-Right Direction
-Include one busbar gas tank
-In busbar tank, there are one earthing switch
disconnector and one group of inner-cone
bushings, for system main busbar extension.
For example, LNE-LD is system main busbar
Left Direction extension.
7
3
Type
extensible(RD)
LNE-LD
-Left Direction
extensible(LD)
Designation: Panels are designated as per above types plus the rated voltage in kV and rated current for feeder busbar in A. In case of
the discrepancy for the rated current between the main busbar and feeder busbar, the rated current of the main busbar shall
be specified in the bracket.
For example: N2S-LNL-12/1250: 12kV incoming panel, the rated current for the feeder busbar is 1250A while the rated current for the
main busbar is 1250A.
N2S-LNL-12/1600 (2500): 12kV incoming panel, the rated current for the feeder busbar is 1600A while the rated current for
the main busbar is 2500A.
7
8
N2S
N2S
Typical Schemes
Typical Schemes
Typical primary schemes-N2S
Typical primary schemes-N2S
1
No .
3*
2
4*
5
Primary circuit scheme
VCB VEG
1
3-position switch
IST
KSOH Toroidal type
1
1
6
7*
b)
b)
b)
a)
a)
a)
Primary circuit scheme
1
VCB VEG
1
3-position switch IST
1
1
1
1
1
3
3
3
3
a) Optional 3
a) Optional 3
b) Optional 3
PT GBEA Inner-cone plug-in type
Available
Available
Inner-cone
3EH2 plug-in type
Outer-cone
CJBKP plug-in type
3
3
3
3
Available
Available
Available
Available
Incoming/outgoing panel
8*
No .
Primary circuit scheme
9
10
11*
12*
b)
b)
b)
b)
a)
a)
a)
a)
a)
13
KSOH Toroidal type
a) Optional
3
a) Optional
1
3
1
a) Optional
3
a) Optional
1
3
PT GBEA Inner-cone plug-in type
EFEN (within PT)
Voltage indicator
9
20
19*
21
b)
b)
b)
b)
b)
a)
a)
a)
a)
a)
a)
1
1
a) Optional 3
a) Optional 3
a) Optional 3
a) Optional 3
a) Optional 3
a) Optional 3
b) Optional 3
b) Optional 3
b) Optional 3
b) Optional 3
b) Optional 3
b) Optional 3
3
3
Voltage indicator
Available
Available
14
a) Optional
3
3
Available
Available
Available
Inner-cone
3EH2 plug-in type
Outer-cone
CJBKP plug-in type
1
VCB VEG
1
1
3-position switch IST
3
3
3
3
Overhead incoming/outgoing riser panel
23*
22*
1
3
Available
3
Overhead incoming/
outgoing panel
No .
3
Available
b)
b)
a)
a)
24
Overhead DS riser panel
25
26
27
1
1
1
28*
1
1
1
1
KSOH Toroidal type
a) Optional
3
a) Optional
3
GIS12L Post type
b) Optional
3
b) Optional
3
CT
GIS12L Post type
Remarks
18*
b)
3
EFEN (within PT)
Remarks
CT
Surge
arrester
HV fuse
Primary circuit scheme
VCB VEG
1
PT GBEA Inner-cone plug-in type
Surge
arrester
Cable riser panel
b)
3-position switch IST
Available
3
3
GIS12L Post type
b) Optional 3
3
3
Remarks
b) Optional 3
3
EFEN (within PT)
Voltage indicator
HV fuse
3
17
CT
GIS12L Post type
Surge
arrester
KSOH Toroidal type
a) Optional 3
CT
HV fuse
16
15*
No .
Inner-cone
3EH2 plug-in type
Outer-cone
CJBKP plug-in type
b) Optional
3
b) Optional
3
b) Optional
3
b) Optional
3
b) Optional
3
3
3
3
PT GBEA Inner-cone plug-in type
3
3
3
HV fuse
Available
Available
Available
3
Cable
riser panel
Available
Available
3
3
DS riser panel
Available
Available
3
Overhead incoming/outgoing
panel
EFEN (within PT)
Voltage indicator
Surge
arrester
Remarks
Inner-cone
3EH2 plug-in type
Outer-cone
CJBKP plug-in type
Optional
3
Optional
3
Optional
3
Optional
3
3
3
3
3
3
3
3
Available
Available
Available
Available
3
Overhead DS riser panel
Available
3
Available
3
Sectionalizer
panel
Busbar riser panel
Busbar coupler
riser panel
10
N2S
N2X
Technical Specifications
Typical Schemes
Typical primary schemes-N2S
29
No .
31
30
32
33
34**
35**
Item
No.
Primary circuit scheme
1
Rated voltage
2
Rated power
frequency
withstand
voltage (1min)
Between phases
and to earth
Rated lightning
impulse
withstand
voltage
Between phases
and to earth
VCB VEG
3-position switch
IST
1
3
1
KSOH Toroidal type
Data (IEC/GB)
Unit
kV
Across the
isolating distance
Across the
isolating distance
12
17.5/24
28/42
50
32/48
60
75
125
85
145
kV
kV
CT
GIS12L Post type
Optional
3
PT GBEA Inner-cone plug-in type
HV fuse
EFEN (within PT)
Voltage indicator
Surge
arrester
Available
Inner-cone
plug-in type
Outer-cone
CJBKP plug-in type
3EH2
Upon Request
Upon Request
Upon Request
Upon Request
3
3
3
3
3
3
3
Available
Available
Available
3
3
XRNP
Available
3
XRNP
Voltage
Voltage measuring panel
measuring panel
with surge arrester
37**
38**
GIS metering panel
39
40
Primary circuit scheme
VCB VEG
3-position switch IST
ISARC1-03
ISARC1-03
Upon Request
Upon Request
Upon Request
Upon Request
Upon Request
Upon Request
AIS metering panel
41
3
Available
HY5WS
36**
No .
3
3
3
Busbar
riser panel
Remarks
3
42
3
4
Rated frequency
Hz
50/60
5
Rated current
A
630/1250
6
Making single/back to back
capacitor bank current
A
630/400
400/400
7
Rated short-circuit breaking current
kA
25/31.5
20/25
8
Rated short-circuit making current
(peak)
kA
63/80
50/63
9
Rated short-time withstand current/
duration
kA/s
25/3,31.5/3
20/3,25/3
10
Rated peak withstand current
kA
63/80
50/63
11
Rated capacitor bank inrush making
capacity
kA
12
Rated cable-charging breaking
current
A
13
Rated operating sequences
14
Rated filling gas pressure
(abs,20℃)
MPa
0.12
15
Alarm pressure
(abs,20℃)
MPa
0.11
16
Minimum operating pressure
(abs,20℃)
MPa
0.10
17
Annual leakage rate
%/Y
<0.1
18
Degree of
protection
KSOH Toroidal type
CT
GIS12L Post type
PT GBEA Inner-cone plug-in type
HV fuse
EFEN (within PT)
Voltage indicator
Surge
arrester
Remarks
XRNP
3
Available
XRNP
3
Available
Inner-cone
3EH2 plug-in type
Outer-cone
CJBKP plug-in type
XRNP
3
Available
HY5WS
3
Note: * means PT can be installed with disconnector additionally;
** means the width a is 800mm;
With regard to the type of all components in the schemes, the actual type in application shall prevail.
11
31.5
25
O-0.3s-CO-3min-CO
High voltage
live parts
IP65
Low voltage
compartment
IP4X
19
Rated voltage of auxiliary circuit
V
20
Rated power frequency withstand
voltage of auxiliary circuit (1 min)
kV
AIS metering panel
20
DC24, 48, 110, 220
AC220
2
*Note: The insulating level is tested under 0.1 MPa or 1 bar (abs. 20℃) of insulating gas.
12
N2X
N2X
OEM Functional Unit
Panel Structure
N2X offers OEM partners the following modular functional units:
No.
1
1
2
Scheme
Type
LNL
Denomination
Incoming/outgoing panel
3
12
4
13
5
Incoming/outgoing panel
6
LNL-BD
14
7
- One more spare inner-cone
bushing on cable side
Description
-Include one gas tank Type A.
-Inside gas tank, there are one 3-position
switch and one vacuum circuit breaker.
-Two groups of inner-cone bushings for
both-side extension of the system main
busbar.
- One group of outer-cone bushings for T
and/or elbow type cable terminal and/or
elbow type surge arrester. For example,
double incoming cables and surge arrester
can be plugged outside of the gas tank.
-Earthing switch can be cancelled or
blocked if necessary.
Same as Type A. And
-There are one more group of inner-cone
bushings on Bottom Direction(BD), means
cable side for plug-in PT or surge arrester.
8
Incoming/outgoing panel
LNL-TD
15
9
- One more spare inner-cone
bushing on busbar side
Same as Type A. And
-There are one more group of inner-cone
bushing on Top Direction(TD), means main
busbar side for plug-in PT or surge arrester.
10
2
11
LNCV-RD
LNCV-LD
1. Low voltage compartment
9. Outer-cone cable terminal
2. Protection and control unit
10. Cable compartment
3. Low voltage compartment door
11. Cable compartment door
4. Gas tank filling and pressure checking valve
5. 3-position switch operating mechanism
6. 3-position switch
7. Vacuum circuit breaker operating mechanism
LNCV-RD-TD
12. Pressure relief
13. Gas tank
14. Main busbar
15. Toroidal current transformer
LNCV-LD-TD
Sectionalizer panel
-Panel busbar Right Direction
extensible(RD)
Connected with LNCD-LD at
panel busbar right side, and
connected with system main
busbar at left side.
-Panel busbar Light Direction
extensible(LD)
Connected with LNCD-RD at
panel busbar left side, and
connected with system main
busbar at right side.
-Include one gas tank Type B.
-Inside tank, there are one 3-position
switch and one vacuum circuit breaker.
-Two groups of inner-cone bushings, one
for system main busbar extension and one
for connecting with neighbour panel busbar
by plug-in type connectors. For example,
LNCV-LD is a panel with busbar left side
extension.
-Earthing switch can be cancelled or
blocked if necessary.
Sectionalizer panel
-Panel busbar Right Direction
extensible(RD)
One more spare inner-cone
bushing on busbar side
-Panel busbar Light Direction
extensible(LD)
One more spare inner-cone
bushing on busbar side
Same as gas tank Type B. And
-There are one more group of inner-cone
bushings on Top Direction(TD), means main
busbar side for plug-in PT or surge arrester.
8. Vacuum circuit breaker
13
14
N2X
N2X
OEM Functional Unit
Typical Schemes
Continued
Typical primary schemes-N2X
1
2
3
4*
5*
6*
7*
VCB VEG
1
1
1
1
1
1
1
3-position switch IST
1
1
1
1
1
1
1
3
3
3
3
3
3
3
3
3
3
3
3
3
Available
Available
Available
No .
No.
3
Type
Scheme
LNCD-RD
LNCD-LD
LNCD-RD-TD
LNCD-LD-TD
Denomination
Description
Busbar riser panel
-Panel busbar Right Direction
extensible(RD)
Connected with LNCV-LD at panel
busbar right side, and connected with
system main busbar at left side.
-Panel busbar Light Direction
extensible(LD)
Connected with LNCV-RD at panel
busbar left side, and connected with
system main busbar at right side.
-Include one gas tank Type C .
-Inside tank , there is one 3-position
switch .
-Two groups of inner-cone bushings, one
for system main busbar extension and one
for connecting with neighbour panel busbar
by plug-in type connectors. For example,
LNCD-LD is a panel with busbar left side
extension.
-Earthing switch can be cancelled or
blocked if necessary.
Busbar riser panel
-Panel busbar Right Direction
extensible(RD)
One more spare inner-cone bushing
on busbar side
-Panel busbar Light Direction
extensible(LD)
One more spare inner-cone bushing
on busbar side
Same as gas tank Type C. And
-There are one more group of inner-cone
bushings on Top Direction(TD), means
main busbar side for plug-in PT or surge
arrester.
DS riser panel
-Include one gas tank .
-Inside tank , there is one 3-position
switch .
-Two groups of inner-cone bushings for
both-side extension of system main busbar.
-One group of outer-cone bushings for
T and/or elbow type cable terminal and/or
elbow type surge arrester. For example,
double incoming cables and surge arrester
can be plugged from outside of the gas tank.
-Earthing switch can be cancelled or
blocked if necessary.
Primary circuit scheme
KSOH Toroidal type
CT
GIS12L Post type
PT GBEA Inner-cone plug-in type
HV fuse
EFEN (within PT)
Available
Voltage indicator
4
5
6
LNDL
LND-B2D
LNM
PT panel
Metering panel
-Include one gas tank special for PT panel.
-Inside tank , there is one 3-position
switch .
-Four groups of inner-cone bushings, two
for both-side extension of system main
busbar, and two for plug-in PTs and surge
arresters from Bottom Direction(B2D).
-Include one gas tank equipped with three
epoxy-casted CTs .
-Inside tank, there are three groups of innercone bushings, one for plug-in PT and
two for system main busbar extension.
Surge
arrester
3EH2
Available
Available
Available
3
3
Inner-cone
plug-in type
Outer-cone
CJBKP plug-in type
3
3
3
Incoming/outgoing panel
Remarks
8
No .
Primary circuit scheme
9
10
11*
13*
12*
14*
b)
b)
b)
b)
b)
b)
b)
a)
a)
a)
a)
a)
a)
a)
VCB VEG
3-position switch IST
7
LNE
LNE-RD
LNE-LD
Busbar earthing panel
- Main busbar Right Direction
extensible(RD)
- Main busbar Light Direction
extensible(LD)
-Include one gas tank
-Inside tank, there are one earthing switch
disconnector and one group of inner-cone
bushings, for system main busbar extension.
For example, LNE-LD is a system with main
busbar left side extension.
KSOH Toroidal type
a) Optional 3
a) Optional 3
a) Optional 3
a) Optional 3
a) Optional 3
a) Optional 3
a) Optional 3
GIS12L Post type
b) Optional 3
b) Optional 3
b) Optional 3
b) Optional 3
b) Optional 3
b) Optional 3
b) Optional 3
3
3
3
3
3
3
Available
Available
Available
CT
PT GBEA Inner-cone plug-in type
HV fuse
EFEN (within PT)
Voltage indicator
Designation: Panels are designated as per above types plus the rated voltage in kV and rated current for feeder busbar in A. In case of
the discrepancy for the rated current between the main busbar and feeder busbar, the rated current of the main busbar shall
be specified in the bracket.
For example: N2X-LNL-12/1250: 12kV incoming panel, the rated current for the feeder busbar is 1250A while the rated current for the
main busbar is 1250A.
N2X-LNL-12/630 (800): 12kV incoming panel, the rated current for the feeder busbar is 630A while the rated current for
the main busbar is 800A.
15
Surge
arrester
Remarks
Inner-cone
plug-in type
Outer-cone
CJBKP plug-in type
Available
Available
3EH2
Available
Available
3
3
3
3
3
Cable riser panel
16
N2X
N2X
Typical Schemes
Typical Schemes
Typical primary schemes-N2X
Typical primary schemes-N2X
15
No .
Primary circuit scheme
16
17
18*
19*
20*
No .
21*
b)
b)
b)
b)
b)
b)
b)
a)
a)
a)
a)
a)
a)
a)
1
1
1
1
1
1
1
3-position switch IST
a) Optional 3
a) Optional 3
a) Optional 3
a) Optional 3
a) Optional 3
a) Optional 3
a) Optional 3
GIS12L Post type
b) Optional 3
b) Optional 3
b) Optional 3
b) Optional 3
b) Optional 3
b) Optional 3
b) Optional 3
3
3
3
PT GBEA Inner-cone plug-in type
3
3
3
HV fuse
Available
Available
Available
EFEN (within PT)
Voltage indicator
Available
Inner-cone
3EH2 plug-in type
Outer-cone
CJBKP plug-in type
Available
Available
3
Available
3
3
3
22
23*
24*
25
EFEN (within PT)
26*
28
27*
3
34
1
1
1
1
35
Optional
3
3
3
JDZR
2
3
JDZR
2
3
3
3
XRNP
3
3
XRNP
3
3
3
Available
Available
Available
Inner-cone
3EH2 plug-in type
Outer-cone
CJBKP plug-in type
Available
Available
3
3
3
Voltage measuring panel
(AIS)
(GIS)
Busbar coupler riser panel
36
No .
Primary circuit scheme
Optional
Voltage indicator
Remarks
DS riser panel
No .
GIS12L Post type
Surge
arrester
3
Remarks
38**
37**
Voltage measuring panel with surge arrester
(AIS)
(GIS)
39**
40***
41***
AIS metering
panel
42
Primary circuit scheme
VCB VEG
1
1
1
3-position switch IST
1
1
1
VCB VEG
1
1
3-position switch IST
1
KSOH Toroidal type
ISARC1-03
KSOH Toroidal type
CT
CT
GIS12L Post type
Optional
PT GBEA Inner-cone plug-in type
EFEN (within PT)
3
Optional
3
Optional
3
Optional
Inner-cone
plug-in type
Outer-cone
CJBKP plug-in type
3EH2
GIS12L Post type
3
3
3
PT GBEA Inner-cone plug-in type
3
3
HV fuse
Voltage indicator
Remarks
33
CT
PT GBEA Inner-cone plug-in type
Surge
arrester
32
KSOH Toroidal type
KSOH Toroidal type
CT
HV fuse
31
VCB VEG
3-position switch IST
Surge
arrester
30*
Primary circuit scheme
VCB VEG
HV fuse
29*
EFEN (within PT)
Voltage indicator
3
Sectionalizer panel
3
Busbar riser panel
Surge
arrester
Busbar coupler
riser panel
Remarks
Inner-cone
plug-in type
Outer-cone
CJBKP plug-in type
3EH2
3
Upon Request
Upon Request
Upon Request
Upon Request
Upon Request
3
Upon Request
Upon Request
Upon Request
Upon Request
Upon Request
3
Available
XRNP
Available
3
XRNP
3
Available
XRNP
3
Available
XRNP
3
Available
XRNP
3
Available
3
HY5WS
GIS metering
panel
3
HY5WS
3
HY5WS
3
AIS metering panel
Note: * means the depth b shall be 150mm more. PT can be installed with disconnector additionally and installation against wall is not recommended;
** means the width a is 800mm; ***means the width a is 1000mm;
With regard to the type of all components in the schemes, the actual type in application shall prevail.
17
18
N2S/N2X
N2S/N2X
Application Schemes
Foundation Frame
N2S Application Schemes
Foundation Frame
N2S-13
N2S-13
N2S-31
N2S-24
N2S-25
N2S-31
N2S-13
N2S-13
For easy installation and
proper long term function,
it is recommended that
N2S/N2X switchgear shall
be mounted on foundation
frame or profile steel which
shall be laid by qualified
personnel.
Detailed size for foundation
frame of N2S/N2X switchgear or installation hole
of profile steel, please refer
to the below pictures.
Relevant standards are recommended to be complied when
laying the foundation frame, in
particular the evenness and
straightness tolerances as a
pre-condition for a perfect
switchgear assembly.
Tolerance conditions for
laying the frame are:
-Evenness tolerance:
±1mm/m2
-Straightness tolerance:
Max.1 mm per meter, but
max. 2mm for the entire
length of the frame.
Foundation Frame of N2S Switchgear
N2S-31
N2S-24
N2S-25
Busbar Voltage measuring
Overhead
panel
riser
incoming/outgoing
panel with surge arrester
panel
N2S-1
N2S-1
N2S-1
Overhead
incoming/outgoing
panel
a
a
800
0
M1
N2S-2
b-50
150
N2S-38
Sectionalizer
panel
35
Voltage measuring
Overhead
panel
incoming/outgoing
with surge arrester
panel
25
Overhead
incoming/outgoing
panel
Busbar
riser
panel
Incoming/
outgoing
panel
Incoming/
outgoing
panel
Incoming/
outgoing
panel
Incoming/
outgoing
panel
50
a-50
a-50
50
750
35
N2X Application Schemes
50
220
Sectionalizer
panel
525
Voltage measuring
panel
with surge arrester
25
AIS
metering
panel
Frame: 10# profile steel
25
N2X-04
N2X-01
N2X-01
N2X-24
N2X-27
N2X-02
N2X-01
25
N2X-04
Foundation Frame of N2X Switchgear
35
a
a
0
200
M1
800
Incoming/
outgoing
panel
Incoming/
outgoing
panel
Incoming/
outgoing
panel
Sectionalizer
panel
Busbar
riser
panel
Incoming/
outgoing
panel
Incoming/
outgoing
panel
N2X-01
N2X-02
Incoming/
outgoing
panel
N2X-23
N2X-27
N2X-01
N2X-01
N2X-02
b-25
Frame: 10# profile steel
N2X-41
50
AIS
metering
panel
19
Sectionalizer
panel
Busbar
riser
panel
Incoming/
outgoing
panel
Incoming/
outgoing
panel
Incoming/
outgoing
panel
Incoming/
outgoing
panel
Incoming/
outgoing
panel
35
25
50
a-50
25
a-50
50
750
25
20
N2S/N2X
N2S/N2X
Layout Plan
Cable Layer
N2S Switchgear
Cable layer for N2S/N2X Switchgear
Rear aisle
>800
4
185
＞500
a-100
Pressure relief
hole
255
a
a
a
a
Sectionalizer
panel
Busbar
riser panel
a
a
800
Metering panel
＞1200
25
800
2
60
Secondary cable hole 50×50
110
35
25
90
Secondary cable hole 55×100
Metering panel
>1500
1
Side
cover
300
Pressure
relief hole
Cable hole
380
Cable
hole
Side
cover
Height≥ 2800mm
1~3mm
Front aisle
525
b-50
25
35
700
>700
＞50
75
75
3
1300
5
N2X Switchgear
700
a-100
>800
25
800
a
a
>1500
Metering panel
21
Front aisle
a
Sectionalizer
panel
a
Busbar
riser panel
1.N2S/N2X switchgear
a
a
2.Lower ventilation
3.Cable layer
4.Upper ventilation
5.Cable layer ventilation
800
Metering panel
>1200
Secondary cable hole 80×85
80
80
85
25
Side
cover
b-500
250
Side
cover
35
b-25
35
>200
50
Height≥ 2800mm
22
N2S/N2X
Notes
Cable Trench
Cable trench for N2S switchgear
Circuit breaker
mechanism
Circuit breaker
gas tank
Disonncetor
mechanism
Incoming
cable
Disconnector and
busbar gas tank
Bottom
plate
Cable trench
bridge
Cover
80
1200
200
Cable
trench
Cable trench for N2X switchgear
LV compartment
Gas tank
Cable compartment
5~10
Frame: 10# profile steel
80
1200
Frame: 10# profile steel
23
N2S/N2X
Pre-laid profile steel