DSR6-12/24/40.5(1250-1350)SF6 Gas Insulated Metal Enclosed Switchgear(C-GIS)
Model and meaning
Work environment
◆Altitude ≤ 5000m (when it runs at an altitude over 1000m,pay special attention).
◆Ambient temperature:highest +50'C ,lowest -25°C,24h average≤ 35°C.
◆Ambient humidity: 24h relative humidity average ≤ 95%; monthly relative humidity average≤ 90%.
◆Electromagnetic interference: the amplitude of electromagnetic interference induced in the secondary system ≤ 1.6kV.
◆Installation environment: no explosive or corrosive gas in ambient environments, no frequent violent vibration or shock in the area to install Note: for any deviation from these ambient environment conditions above, consult with the company to customize.
Main technical parameters
|
Item |
Unit |
Parameter |
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|
Rated voltage |
kV |
12 |
24 |
40.5 |
|
|
Rated frequency |
Hz |
50 |
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|
Rated current |
A |
630/1250/2500/3150/4000 |
630/1250/2500 |
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|
Rated insulation level |
Power frequency withstand voltage(phase- to-phase and phase-to-ground) |
kV |
42 |
65 |
95 |
|
Power frequency withstand voltage(insulation breaking) |
|
48 |
79 |
118 |
|
|
Lightning impulse withstand voltage (phase-to-phase and phase-to-ground) |
kV |
75 |
125 |
185 |
|
|
Lightning impulse withstand voltage(insulation breaking) |
kV |
85 |
145 |
215 |
|
|
Rated power frequency withstand voltage of auxiliary circuit |
kV |
2 |
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|
Rated instantaneous withstand current |
kA |
25/31.5/40 |
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|
Rated short-circuit period |
s |
3 |
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|
Rated peak withstand current |
kA |
63/80/100 |
63/80/100 |
50/63/80 |
|
|
Rated short-circuit breaking current of circuit breaker |
kA |
25/31.5/40 |
25/31.5/40 |
25/31.5 |
|
|
Rated short-circuit closing current of circuit breaker(peak) |
kA |
63/80/100 |
63/80/100 |
50/63/80 |
|
|
Rated cable charge breaking current |
A |
25 |
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|
Rated operating sequence |
|
0-0.3s-CO-3min-CO |
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|
Insulation gas |
|
|
SF6 |
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|
Mechanical life |
Circuit breaker |
Time |
10000 |
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|
Three-position switch |
Time |
5000 |
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|
SF6 gas rated pressure (abs.20℃) |
Rated charge pressure(abs,20℃) |
Mpa |
0.14 |
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|
Minimum charge pressure(abs,20℃) |
Mpa |
0.12 |
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|
Protection grade |
Sealed enclosure |
Grade |
IP67 |
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|
Switchgear shell |
Grade |
UP4X |
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|
Annual relative leak rate of dry air |
%/year |
≤0.1 |
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|
Rated power voltage of auxiliary circuit |
V |
DC48/110/220 AC220 |
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The general external dimensions of switchgears
|
Rated voltage (kV) |
Main bus rated current(A) |
Type of cabinet |
a ( m m) Width |
b(mm)Depth |
d(mm) Height |
Remark |
|
|
12/24/40.5 |
630/1250 |
Incoming,sectional,insulated,outgoing |
600 |
1600 |
2400 |
PT tertiary |
|
|
(PT)Bus(PT) |
1000 |
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|
Metering cabinet |
Gas tank |
600/1000 |
According to voltage transformer |
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|
Air |
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|
2500/3150/4000 |
Incoming,sectional,insulated,outgoing Bus(PT) |
800/1000 |
1800 |
2400 |
PT tertiary |
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Min technical parameters
|
NO. |
Scheme |
Description |
Function |
|
1 |
|
Cable feeder cabinet |
With three-position switch,circuit breaker,closing and breaking cable and bus,can close and break the rated current;the bus on both sides can expand.In the circuit breaker gas chamber,3 female sockets are reserved to plugin/out the plug-in cable;the arrester, potential transformer and the unused sockets can be blocked.The cable has upper incoming or lower incoming.Can cancel or block the grounding switch. |
|
2 |
|
Sectional circuit breaker cabinet |
With three-position switch,combined the sectional circuit breaker cabinet,to sectionalize and link the bus;can cancel or block the grounding switch. |
|
3 |
|
Sectional insulation cabinet |
With three-position switch,combined with sectional circuit breaker cabinet,to sectionalize and link the bus;can cancel or block the grounding switch. |
Main technical parameters
|
NO. |
Scheme |
Description |
Function |
|
4 |
|
Insulation upgraded cabinet |
With three-position switch,connect orinsulate cable and bus;the bus on both sides can expand.Cancancel or block the grounding switch if grounding isn't required. |
|
5 |
|
Insulation cabinet |
With three-position switch,female socket is reserved in the gas tank to plug in the plug-in arrester and potential transformer. |
|
6 |
|
Metering cabinet |
With built-in current transformer and plug-in potential transformer,it can be combined with other functional units. |
|
7 |
|
Main bus grounding cabinet |
With grounding switch,ground the main bus;usually the bus on one side can expand to connect with the main buses of other functional units. |
Main technical parameters
|
NO. |
Scheme |
Description |
Function |
|
8 |
|
Cable incoming/outgoing cabinet(for non-separable structure of gas tank) |
With three-position switch,circuit breaker,grounding and breaking cable and bus,can close or break the rated current,the bus on both sides can expand.On the bus side,can plug in/out the plug- in arrester or potential transformer and the unused sockets can be blocked.Can cancel or block the grounding switch if grounding isn’t required. |
|
9 |
|
Sectional+insulation cabinet |
With three-position switch,circuit breaker and built- in current transformer,to sectionalize and link the bus.Can cancel or block the grounding switch if grounding isn’t required. |
Note: These functional modular units above are available for OEM partners.
Model number:add rated voltage and branch bus rated current into the model number of the gas tank, if the main bus rated current and the branch bus rated current are different,indicate in the brackets
For example:
XGN(DSR6) -12/1250: 12kV switchgear, branch bus, main bus rated current is 1250A;
XGN(DSR6) -12/1250 (2500): 12kV switchgear, branch bus rated current is 1250A, main bus rated current is 2500A;
Product structure
The product has a modular assembly structure and is composed of independent functional modules (compartments), i. e the cabinet bottom unit,combined chargeable unit, comprehensive protection and control unit, actuator room and pressure relief channel, etc; it's flexible and efficient to assemble and maintain the whole product.
◆Gas tank
◆Cable chamber
◆Pressure relief channel
◆Control room
◆Protection and control unit
◆Gas tank pressure and density gauge
◆Insulation switch actuator
◆Circuit breaker actuator
◆Three-position insulation switch (directly-actuated type)
◆ Vacuum circuit breaker
◆Top bus bushing
◆Bus
◆Ring current transformer
◆Male cable terminal
Cable incoming/outgoing cabinet (630~1250A)
◆Gas tank
◆Cable chamber
◆Pressure relief channel
◆Control room
◆Protection and control unit
◆Insulation switch actuator
◆Circuit breaker actuator
◆Three-position insulation switch (directly-actuated type)
◆Vacuum circuit breaker
◆Side-expansion bus bushing
◆Heat sink
◆Bus
◆Ring current transformer
◆Female cable terminal
◆Female socket
◆Plug-in arrester
Cable incoming/outgoing cabinet(2500~3150A)
◆Gas tank
◆Bus incoming chamber
◆Pressure relief channel
◆Control room
◆Protection and control unit
◆Insulation switch actuator
◆Circuit breaker actuator
◆Three-position insulation switch (directly-actuated type)
◆Vacuum circuit breaker
◆Side-expansion bus bushing
◆Heat sink
◆Bus
◆Current transformer
◆Solid insulation bus
◆Female socket
◆ Door pane
Feeder(2500~3150A)
Structural features of gas tank
The vacuum circuit breaker, three-position switch,side (top) bus insulation bushing and female (male) cable socket are installed in the gas tank, and the whole gas tank box is made of 304 stainless steel plate and welded by reinforcement ribs;the high-voltage live part is completely sealed in the stainless steel metal gas tank; after vacuum testing, the gas tank shall be sealed without leak; by internal vacuum,the internal moisture is drawn out and charged with sF6 gas at 0.04Mpa; the protection grade is IP67, The gas chamber is equipped with explosion-proof device and pressure relief channel to guarantee personnel safety and equipment operation as much as possible when any internal arc fault happens.
Features of vacuum circuit breaker
◆Circuit breaker solid-sealing pole is horizontal, fixed in the sealed gas tank and free from maintenance.
◆With vacuum arc extinguishing technology, breaking doesn't influence insulation strength of the gas in gas tank.
◆The pole and mechanism are connected and driven inside and outside of the gas tank by the metal bellows, with little leak and high reliability.
◆More reliable rated current closing and breaking performance.
◆Can be actuated frequently with few fault.
Directly-actuated three-position switch
◆The three-position switch can be used as a bus insulation switch and feeder grounding switch ◆to close, insulate and ground the bus with interlocking.
◆When the three-position switch is used as a side grounding switch, it can ground quickly by circuit breaker.
◆With cylindrical electrode, uniform electric field and superior insulation.
◆The actuator is driven by magnetic fluid dynamic sealing technology, Rotate the insulated lead screw to drive the conductive rod for three-position linked transmission and the interlocking is reliable without any error in operation.
◆ Switch position can be detected by sensor or auxiliary switch, with mechanical position indication.
Features of three-position switch
Switching mechanism features
◆Reasonable design of spring-actuated mechanism, fewer mechanical parts, balanced energy output and reliable operation.
◆With reliable mechanical and electrical interlocking devices, can prevent any error in operation.
◆Automatic reclosing,the seal fixed plate is installed outside of the gas tank, it’s easy to disassemble and maintain,without reliable seal of the gas tank.
◆Interlocked with the circuit breaker to ensure that it can only close when the three-position switch is in the correct position, with reliable performance.
◆The switch position is detected by sensor or auxiliary switch, with mechanical position indication.
◆By manual double-hole operation, insulation hole and grounding hole are interlocked and the interlock solenoid or mechanical interlock hole can be prefabricated,
◆The built-in rectifier of mechanism actuator can be equipped with corresponding Ac power supply or Dc power supply.
◆The manual operation with limit device, only can remove handle when it arrives.
XGND(DSR6) Typical primary scheme diagram
|
NO. |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
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|
Type of cabinet |
Cable incoming/outgoing cabinet |
Insulation upgraded cabinet |
|||||||||||||||
|
Primary wiring scheme |
 |
|
|
|
|
|
|
|
|||||||||
|
Vacuum circuit breaker |
1 |
1 |
1 |
1 |
|
|
|
|
|||||||||
|
Three-position switch |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
|||||||||
|
Current transformer(CT) |
Column (a) |
Optional |
3 |
Optional |
3 |
Optional |
3 |
Optional |
3 |
Optional |
3 |
Optional |
3 |
Optional |
3 |
Optional |
3 |
|
Go-through (b) |
Optional |
3 |
Optional |
3 |
Optional |
3 |
Optional |
3 |
Optional |
3 |
Optional |
3 |
Optional |
3 |
Optional |
3 |
|
|
Plug-in potential transformer(PT) |
|
|
3 |
3 |
|
|
3 |
3 |
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|
High-voltage fuse(PT built-in) |
|
|
3 |
3 |
|
|
3 |
3 |
|||||||||
|
Live monitor |
Available |
Available |
Available |
Available |
Available |
Available |
Available |
Available |
|||||||||
|
Plug-in arrester |
|
3 |
|
3 |
|
3 |
|
3 |
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XGND(DSR6) Typical primary scheme diagram
|
NO. |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
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|
Type of cabinet |
Bus upgraded cabinet |
Pipeline incoming/outgoing cabinet |
Sectional circuit breaker cabinet |
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|
Primary wiring scheme |
|
|
|
|
|
|
|
|
|||||
|
Vacuum circuit breaker |
|
|
|
|
1 |
1 |
1 |
1 |
|||||
|
Three-position switch |
|
|
|
|
1 |
1 |
1 |
1 |
|||||
|
Current transformer(CT) |
Column (a) |
Optional |
3 |
Optional |
3 |
Optional |
3 |
Optional |
3 |
3 |
3 |
3 |
|
|
Go-through (b) |
Optional |
3 |
Optional |
3 |
Optional |
3 |
Optional |
3 |
|
|
|
|
|
|
Plug-in potential transformer(PT) |
|
|
3 |
3 |
|
|
3 |
|
|||||
|
High-voltage fuse(PT built-in) |
|
|
3 |
3 |
|
|
3 |
|
|||||
|
Live monitor |
Available |
Available |
Available |
Available |
Available |
Available |
Available |
Available |
|||||
|
Plug-in arrester |
|
3 |
|
3 |
|
3 |
|
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|
NO. |
17 |
18 |
19 |
20 |
21 |
22 |
23 |
24 |
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|
Type of cabinet |
Pipeline incoming/outgoing cabinet |
Tubular bus insulation upgraded cabinet |
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|
Primary wiring scheme |
|
|
|
|
|
|
|
|
|||||||||
|
Vacuum circuit breaker |
|
|
|
|
|
|
|
|
|||||||||
|
Three-position switch |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
|||||||||
|
Current transformer(CT) |
Column (a) |
Optional |
3 |
Optional |
3 |
Optional |
3 |
Optional |
3 |
Optional |
3 |
Optional |
3 |
Optional |
3 |
Optional |
3 |
|
Go-through (b) |
Optional |
3 |
Optional |
3 |
Optional |
3 |
Optional |
3 |
Optional |
3 |
Optional |
3 |
Optional |
3 |
Optional |
3 |
|
|
Plug-in potential transformer(PT) |
|
|
3 |
3 |
|
|
3 |
3 |
|||||||||
|
High-voltage fuse(PT built-in) |
|
|
3 |
3 |
|
|
3 |
3 |
|||||||||
|
Live monitor |
Available |
Available |
Available |
Available |
Available |
Available |
Available |
Available |
|||||||||
|
Plug-in arrester |
|
3 |
|
3 |
|
3 |
|
3 |
|||||||||
XGND(DSR6) Typical primary scheme diagram
|
NO. |
25 |
26 |
27 |
28 |
29 |
30 |
31 |
32 |
|
|
Type of cabinet |
Sectional isolation cabinet |
Bus upgraded cabinet |
PT cabinet |
Inflatable metering cabinet |
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|
Primary wiring scheme |
|
|
|
|
|
|
|
|
|
|
Vacuum circuit breaker |
|
|
|
|
|
|
|
|
|
|
Three-position switch |
1 |
1 |
1 |
|
|
1 |
1 |
1 |
|
|
Current transformer(CT) |
Column (a) |
|
|
|
|
|
|
|
|
|
Go-through (b) |
3 |
3 |
3 |
3 |
3 |
|
|
3 |
|
|
Plug-in potential transformer(PT) |
|
3 |
|
3 |
|
3 |
3 |
3 |
|
|
High-voltage fuse(PT built-in) |
|
|
|
|
|
|
|
|
|
|
Live monitor |
Available |
Available |
Available |
|
|
|
|
|
|
|
Plug-in arrester |
|
|
3 |
|
3 |
|
3 |
||
|
NO. |
33 |
34 |
35 |
36 |
37 |
38 |
39 |
40 |
|
|
Type of cabinet |
Inflatable metering cabinet |
Air metering cabinet |
Incoming/outgoing &bus arrester |
PTIncoming/outgoing &bus PT |
Sectional+ Insulation cabinet |
||||
|
Primary wiring scheme |
|
|
|
|
|
|
|
|
|
|
Vacuum circuit breaker |
|
|
|
|
|
1 |
1 |
1 |
|
|
Three-position switch |
1 |
|
|
|
|
1 |
1 |
2 |
|
|
Current transformer(CT) |
Column (a) |
|
|
|
|
|
3 |
3 |
|
|
Go-through (b) |
3 |
Required by customer |
Required by customer |
Required by customer |
Required by customer |
3 |
3 |
3 |
|
|
Plug-in potential transformer(PT) |
3 |
Required by customer |
Required by customer |
Required by customer |
Required by customer |
|
|
|
|
|
High-voltage fuse(PT built-in) |
3 |
3 |
3 |
3 |
3 |
|
|
|
|
|
Live monitor |
Available |
Available |
Available |
Available |
Available |
Available |
Available |
|
|
|
Plug-in arrester |
Female |
3 |
|
|
|
|
3 |
3 |
3 |
|
Male |
|
|
3 |
|
3 |
|
|
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