产品名称: | BD-12/2000-40断路器用玻璃真空灭弧室 | |||||
型号规格: | |
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产品类别: | 常规产品 -- 备品配件 -- 玻璃真空灭弧室 | |||||
参考价格: | 厂价直销 | |||||
产品品牌: | 国产 | |||||
产品产地: | 上海 | |||||
可供数量: | 批量 | |||||
供货周期: | 现货(或电询) | |||||
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产品简介: |
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参数名称 Parameter name |
单位 unit |
数值 value |
额定电压 Rated voltage |
kV |
12 |
额定电流 Rated normal current |
A |
2000 |
额定短路开断电流 Rated short-circuit breaking current |
kA |
40 |
额定短路关合电流 Rated short-circuit making current |
kA |
100 |
额定峰值耐受电流 Rated peak withstand current |
kA |
100 |
额定短时耐受电流 Rated short-time withstand current |
kA |
40 |
额定短路持续时间 Rated duration of short circuit |
S |
4 |
额定单个电容器组开断电流 Rated single capacitor unit breaking current |
A |
630 |
额定背对背电容器组开断电流 Rated back to back capacitor unit breaking current |
A |
400 |
额定短时(1min)工频耐压 Rated short time power frequency withstand voltage (1min) |
kV |
42 |
额定触头压力下的回路电阻 Circuit resistance at lower limit of rated contact pressure |
μΩ |
≤25 |
额定短路开断电流开断次数 Rated short circuit breaking current breaking times |
次 Time |
30 |
额定雷电冲击耐受电压 Rated lightning impulse withstand voltage |
kV |
75 |
机械寿命 Mechanical endurance |
次 Time |
10000 |
触头自闭力 Closing force due to bellow and atmosphere |
N |
120±50 |
额定开距时的触头反力 Force required to hold contacts open at full stroke |
N |
200±50 |
触头允许磨损厚度 Contact-wear allowance thickness |
mm |
3 |
内部气体压力 |
Pa |
≤1.33×10ˉ3 |
允许贮存期 |
年 Year |
20 |
项目 Project |
单位 Unit |
数值 Value |
触头开距 Contact stroke |
mm |
11±1 |
触头接触行程 Contact travel |
mm |
3±10 |
平均合闸速度 Average closing speed |
m/s |
0.6±0.2 |
平均分闸速度 Average opening speed |
m/s |
1.1±0.2 |
额定触头压力 Rated contact pressure |
N |
4500±300 |
触头合闸弹跳时间 Contact closing bounce time |
ms |
≤2 |
触头合闸与分闸不同期性 Out of simultaneity of contact closing and opening |
ms |
≤2 |