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VI007040型真空灭弧室
VI007040型真空灭弧室技术参数 Specification: Vacuum Interrupter VI007040
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电气参数 |
Electrical Data |
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额定电压 50Hz |
Rated voltage, 50Hz |
7.2kV |
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额定电流 |
Rated normal current |
400A |
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额定短时耐受电流，4秒 |
Rated short-time withstand current, 4s |
4kA |
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最小额定开断电流 |
Min.Rated breaking current |
80A |
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最大额定开断电流 |
Max.Rated breaking current |
3.2kA |
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极限开断电流 |
Linit breaking current |
4 kA |
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额定关合电流 |
Rated Marking current |
4 kA |
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绝缘水平 |
Rated Insulation Level |
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额定工频耐受电压 |
Rated power-frequency withstand voltage |
32kV |
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额定雷电冲击耐受电压 |
Rated lightning impulse withstand voltage |
60kV |
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热参数 |
Thermal Data |
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最小关合力时电阻值 |
Resistance at min. closing force (new cond.) |
≤100μΩ |
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动端导电杆最高允许耐受温度 |
Max. permitted temperature at movable stem |
170ºC |
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机械参数 |
Mechanical Data |
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触头开距 |
Contact stroke |
5±1mm |
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分闸过冲 |
Max. overtravel |
2mm |
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平均分闸速度（全行程) |
Average opening speed ( (total excursion) |
0.5±0.2m/s |
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平均合闸速度（全行程) |
Average closing speed ( (total excursion) |
0.4±0.2m/s |
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触头弹跳持续最大时间 |
Max. bouncing duration |
2ms |
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触头分闸及合闸不同期性 |
Opening and closing non-simultaneity of three-phase contacts |
≤1ms |
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额定触头压力 |
Rated added external contact final force |
100±20N |
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自闭力 |
Closing force due to bellows and atmosphere |
75±20N |
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额定触头开距下触头反力 |
Force required to hold contacts open at full stroke |
190±30N |
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触头磨损最大值 |
Contact erosion limit |
2mm |
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动端导电部分质量 |
Mass of moving contact |
0.45kg |
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灭弧室质量 |
Weight of interrupter |
1.2kg |
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储存期 |
Storage life |
20年 |
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机械寿命 |
Mechanical life |
1000000次 |
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