Dis Sub-12 Compact fixed air-insulated switchgear
Dis Sub-12 Series of Compact fixed air-insulated switchgear is a new generation of miniaturized, modular.scalable, maintainable, environmental metal switchgear, which has the main feature that the main circuit withthree-phase vertical layout, the three lsolation switch and fixed vacuum circuit breaker function together, Thisequipment is widely used in 3-12kV three-phase AC 50Hz power system, suitable for box-type substation.ring network distribution system.
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Ring Main Unit
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Dis Sub-12 Compact fixed air-insulated switchgear
DETAIL
Product Introduction
Dis Sub-12 Series of Compact fixed air-insulated switchgear is a new generation of miniaturized, modular.scalable, maintainable, environmental metal switchgear, which has the main feature that the main circuit withthree-phase vertical layout, the three lsolation switch and fixed vacuum circuit breaker function together, Thisequipment is widely used in 3-12kV three-phase AC 50Hz power system, suitable for box-type substation.ring network distribution system.
Product Features
1.Sarety: The structure of the vacuum interuoter is solid. There are sare pressure relief channel both on the top of and behind the cabinet. which reduce the risk of internal combustion. It's maintainable and ensures the safety of operators and property.
2.Environmental protection: lt has no gas filling and no harmful gas emissions into the air.
3.Miniaturization. modulariy, intelioence: The cabinet width is oniy 500mm. occupying less space, the inlet and outlet cable installation height≥600mm, all conductor with hard connection, easy to maintain, any Combinaton, protection control and montoring functions, fuly integrated, to meet the distribution network automation.
4.Realization plan: *C load switch," circuit breakers, *F load switch + fuse, *PT voltage transtormer; " M metering; *D bus lift cabinet,etc. Out of the isolation on the ground; on the isolation under the ground.
Technical Parameter
Dis Sub-12系列 Dis Sub-12 Series |
V | C | F | ||
项目 Items |
单位 Unit |
参数 Parameter |
|||
额定电压 Ur Rated voltage Ur |
kV | 12 | |||
额定频率fr Rated frequency fr |
Hz | 50 | |||
额定电流Ir Rated current Ir |
A | 1250 | 1250 | 125* | |
额定绝缘水平 Rated insulation level
|
1min额定短时工频耐受电压ud(主回路) 1min rated short duration power-frequency withstand voltage ud (main circuit) |
||||
相间、相对地 Phase to phase, phase to earth |
kV | 42 | |||
隔离断口 isolated fracture |
kV | 48 | |||
额定雷电冲击耐受电压 upRated lightning impulse withstand voltage up |
|||||
相间、相对地 Phase to phase, phase to earth |
kV | 75 | |||
隔离断口 isolated fracture |
kV | 85 | |||
1min额定短时工频耐受电压ud(C) 1min rated short duration power-frequency withstand voltage ud |
|||||
辅助回路 Auxiliary circuit |
kV | 2 | |||
额定短时耐受电流 KRated short-time withstand current lk
|
主回路/接地开关tk=4s Main circuit / ground switch tk=4s |
kA | 31.5 | 31.5 | |
接地连接回路 tk=2s Earth circuit tk=4s |
kA | 27.4 | 27.4 | ||
额定峰值耐受电流ip Rated peak withstand current lp
|
主回路/接地开关 Main circuit / ground switch |
kA | 80 | 80 | |
接地连接回路 Earth circuit |
kA | 68.5 | |||
额定短路关合电流 ImaRated short-circuit closing current ima |
|
kA | 80 | 63 | |
额定短路开断电流 lsc Rated short-circuit breakina current lsc |
|
kA | 31.5 | 31.5* | |
额定转移电流 Rated transfer current |
|
A | 3150 | ||
操作顺序 Operation sequence |
|
0-0.3s-00-180s-00 | |||
额定短路电流开断次数 The amount of short arcuit cument breaking times |
|
30 | |||
机械寿命(断路器/负荷开关) Mechanical life (circuit breaker load switch) |
|
10000 | |||
机械寿命(三工位隔离开关) Mechanical life (Three-station disconnector |
|
5000 | |||
防护等级(外壳) level of protection |
|
IP4X |
*表示取决或受限于高压熔断器
Indicates that it is dependent or limited to hiah voltage fuses
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