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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 |
630 |
|
额定短路开断电流 Rated short-circuit breaking current |
kA |
20 |
|
额定短路关合电流 Rated short-circuit making current |
kA |
50 |
|
额定峰值耐受电流 Rated peak withstand current |
kA |
50 |
|
额定短时耐受电流 Rated short-time withstand current |
kA |
20 |
|
额定短路持续时间 Rated duration of short circuit |
S |
4 |
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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 |
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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 |
≤30 |
|
额定短路开断电流开断次数 Rated short circuit breaking current breaking times |
次 Time |
30 |
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额定雷电冲击耐受电压 Rated lightning impulse withstand voltage |
kV |
75 |
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机械寿命 Mechanical endurance |
次 Time |
10000 |
|
触头自闭力 Closing force due to bellow and atmosphere |
N |
80±30 |
|
额定开距时的触头反力 Force required to hold contacts open at full stroke |
N |
140±40 |
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触头允许磨损厚度 Contact-wear allowance thickness |
mm |
3 |
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真空灭弧室内部气体压力 Gas pressure inside vacuum interrupter |
Pa |
≤1.33×10ˉ3 |
配用断路器的机械参数
Technical specifications Circuit-breaker
|
项目 Poject |
单位 Unit |
数值 Value |
|
触头开距 Contact stroke |
mm |
10±1 |
|
触头接触行程 Contact travel |
mm |
3.5±0.5 |
|
平均合闸速度 Average closing speed |
m/s |
0.6±0.2 |
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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 |
2000±200 |
|
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 |
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分闸触头反弹幅值 Bouncing back amplitude of opening contact |
mm |
≤2 |
真空灭弧室 TD-12/630-20
￥500 元/套
真空灭弧室
￥500 元/套
真空灭弧室 TD-12/1250-25
￥500 元/套
真空灭弧室TD-12/630-20
￥500 元/套
