China DSR6-12/24/40.5 SF6 Gas Insulated Metal Enclosed Switchgear - Reliable Suppliers & Factory Solutions
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.
Item |
Unit |
Parameter |
|||
Rated voltage |
kV |
12 |
24 |
40.5 |
|
Rated frequency |
Hz |
50 |
|||
Rated current |
A |
630/1250/2500/3150/4000 |
630/1250/2500 |
||
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 |
|||
Rated instantaneous withstand current |
kA |
25/31.5/40 |
|||
Rated short-circuit period |
s |
3 |
|||
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 |
|||
Rated operating sequence |
|
0-0.3s-CO-3min-CO |
|||
Insulation gas |
|
|
SF6 |
||
Mechanical life |
Circuit breaker |
Time |
10000 |
||
Three-position switch |
Time |
5000 |
|||
SF6 gas rated pressure (abs.20℃) |
Rated charge pressure(abs,20℃) |
Mpa |
0.14 |
||
Minimum charge pressure(abs,20℃) |
Mpa |
0.12 |
|||
Protection grade |
Sealed enclosure |
Grade |
IP67 |
||
Switchgear shell |
Grade |
UP4X |
|||
Annual relative leak rate of dry air |
%/year |
≤0.1 |
|||
Rated power voltage of auxiliary circuit |
V |
DC48/110/220 AC220 |
|||
Rated voltage (kV) |
Main bus rated current(A) |
Type of cabinet |
a (mm) 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 |
||||||
Metering cabinet |
Gas tank |
600/1000 |
According to voltage transformer |
||||
Air |
|||||||
2500/3150/4000 |
Incoming, sectional, insulated, outgoing Bus(PT) |
800/1000 |
1800 |
2400 |
PT tertiary |
||
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 plug in/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. |
NO. |
Scheme |
Description |
Function |
4 |
|
Insulation upgraded cabinet |
With three-position switch, connect or insulate cable and bus; the bus on both sides can expand. Can cancel 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. |
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;