1250-20A(038)玻璃真空开关管
更新：2021-05-14 17:32 编号：2990080 浏览：109次
- 供应商
- 无锡普泰科技有限公司 商铺
- 认证
- 报价
- 请来电询价
- 品牌
- 型号
- BD-12/1250-20A(038)
- 产品认证
- EC
- 所在地
- 无锡市高浪东路999号（网络研发楼）105室
- 联系电话
- 0510-82301121
- 手机号
- 13665170781
- 联系人
- 毛珂翀 请说明来自顺企网，优惠更多
- 让卖家联系我
产品详细介绍
|
glass vacuum interrupter for circuit-breaker 断路器用真空灭弧室 |
bd-12/1250-20a(038)
主要技术参数main technical data
电压参数voltage ratings at rated contact stroke
|
额定频率 rated frequency |
hz |
50 |
|
额定电压 rated voltage |
kv |
12 |
|
短时（1min）工频耐受电压 short-time(1min) power-frequency withstand voltage |
kv |
42 |
|
雷电冲击耐受电压（峰值） lightning impulse withstand voltage(peak) |
kv |
75 |
电流参数current ratings
|
额定电流 rated current |
a |
1250 |
|
额定短路开断电流 rated-short-circuit breaking current |
ka |
20 |
|
额定短时耐受电流 rated short-time withstand current |
ka |
20 |
|
额定峰值耐受电流 rated peak withstand current |
ka |
50 |
|
额定短路关合电流 rated short-circuit making current |
ka |
50 |
|
额定单个电容器组开断电流 rated single capacitor bank breaking current |
a |
400 |
|
额定背对背电容器组开断电流 rated back-to-back capacitor bank breaking current |
a |
400 |
|
额定短路持续时间 rated duration of short-circuit |
s |
4 |
|
额定触头压力下限时的回路电阻 circuit resistance at min. rated contact force |
μω |
≤30 |
机械参数mechanical data
|
触头自闭力 contact closed force due to bellows and atmosphere |
n |
90±40 |
|
额定开距下的触头反力 counterforce of contact at full stroke |
n |
180±40 |
|
运动部分的质量 mass of moving patrs |
kg |
0.9 |
寿命life
|
机械寿命 mechanical endurance |
次 operations |
10000 |
|
触头允许磨损厚度 contact limit erosion |
mm |
3 |
|
额定短路开断电流开断次数 switching operations of rated short-circuit breaking current |
次 operations |
30 |
|
允许储存期 shelf life |
年 years |
20 |
|
内部气体压力 internal gas pressure |
pa |
≤1.33×10-3 |
|
额定操作顺序 rated operating sequence |
分-0.3秒-合分-180秒-合分 |
|
|
o-0.3s-co-180s-co |
||
配套的真空开关设备应满足的机械参数mechanical data of vacuum switch equipped with the interrupters
|
平均分闸速度(前6mm) average opening speed (first 6 mm) |
m/s |
1.1±0.2 |
触头合闸和分闸不同期 out of simultaneity of contact closing and opening |
ms |
≤1 |
|
平均合闸熟读(后6mm) average closing speed(last 6mm) |
m/s |
0.6±0.2 |
额定触头压力 rated contact pressure |
n |
|
|
触头合闸弹跳时间 contact bounce duration at closing operation |
ms |
≤2 |
分闸触头反弹幅值 maximum rebound during opening |
mm |
≤2 |
|
触头开距 clearance between open contacts |
mm |
11±1 |
|
|
|
本产品的品牌是GTVAC，型号是BD-12/1250-20A(038)，产品认证是EC
