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VI012400型真空灭弧室
VI012400型真空灭弧室技术参数 Specification: Vacuum Interrupter VI012400
|
电气参数 |
Electrical Data |
|
|
额定电压 50Hz |
Rated voltage, 50 Hz |
12kV |
|
额定电流 |
Rated normal current |
4000A* |
|
额定短路开断电流，对称的 |
Rated short-circuit breaking current, symm. |
40kA |
|
最大直流分量 |
Max. DC-component |
50% |
|
额定短路关合电流 |
Rated short-circuit making current |
100kA |
|
额定峰值耐受电流 |
Rated peak withstand current |
100kA |
|
额定短时耐受电流，4秒 |
Rated short-time withstand current, 4s |
40kA |
|
开断容性电流，符合GB1984 |
Capacitive switching acc. to GB1984 |
C2Class |
|
额定绝缘水平 |
Rated Insulation Level |
|
|
额定工频耐受电压 |
Rated power-frequency withstand voltage |
42/48kV |
|
额定雷电冲击耐受电压 |
Rated lightning impulse withstand voltage |
75/85kV |
|
热参数 |
Thermal Data |
|
|
额定触头压力下限时的回路电阻 |
Circuit resistance at lowest rated contact force |
≤9μΩ |
|
动端导电杆最高允许耐受温度 |
Max. permitted temperature at movable stem |
170ºC |
|
电寿命 |
Electrical Life |
|
|
额定短路开断电流开断次数 |
Breaking operations of rated short-circuit breaking current |
50次 |
|
机械参数 |
Mechanical Data |
|
|
触头开距 |
Contact stroke |
8±1mm |
|
分闸过冲 |
Max. over travel |
≤2mm |
|
分闸反弹幅值 |
Maximum rebound during opening |
≤2mm |
|
平均分闸速度（0-2mm开距) |
Average opening speed (0-2 mm stroke) |
1.2±0.2m/s |
|
平均合闸速度（2mm-触头闭合) |
Average closing speed (2 mm- contact making) |
0.8±0.2m/s |
|
触头弹跳持续最大时间 |
Max. bouncing duration |
2ms |
|
触头分闸及合闸不同期性 |
Opening and closing non-simultaneity of three phase contacts |
≤1ms |
|
额定触头压力 |
Rated added external contact final force |
4400±400N |
|
触头初压力 |
Added external contact force at contact touch point |
≥3700N |
|
自闭力 |
Closing force due to bellows and atmosphere |
240±20N |
|
额定触头开距下触头反力 |
Force required to hold contacts open at full stroke |
290±40N |
|
触头磨损最大值 |
Contact erosion limit |
3mm |
|
动端导电部分质量 |
Mass of moving contact |
2.0kg |
|
灭弧室质量 |
Weight of interrupter |
6.4kg |
|
储存期 |
Storage life |
20年 |
|
机械寿命 |
Mechanical life |
20000次 |
* 开关运行时需强制风冷