亚博王者荣耀竞猜是最具公信力品牌,以真人视讯;电子游戏及体育赛事等百种游戏深受玩家喜爱,亚博王者荣耀竞猜成为亚洲最受欢迎的线上娱乐平台.

  • <video id="wzigo"></video>

          1. <u id="wzigo"></u>
              <tt id="wzigo"></tt>

              联系我们

              湖北久歌电气有限公司(中英文).png

              电话:86 717 4209228

                        86 717 4209218

              传真:86 717 4209218

              邮箱:info@jucro.com

              地址:中国 湖北 枝江市 仙女四路


              断路器用真空灭弧室
              TD-12/1250-31.5(JUC618)

              TD-12/1250-31.5(JUC618) vacuum interrupter for circuit breaker

              TD-12/1600-31.5(JUC618A)

              主要项目的技术参数 Main technical parameters

              Items

              Value

              额定电压 

              Rated voltage

              12KV

              额定电流 

              Rated current

              1250A/1600

              额定频率 

              Rated frequency

              50Hz

              额定短时工频耐受电压(1min)

              Rated power frequency withstand voltage

              42kV

              额定雷电冲击耐受电压

              Rated lightning impulse withstand voltage

              75kV

              额定短路开断电流

              Rated short circuit breaking current

              31.5KA

              额定短路关合电流(峰值)

              Rated short circuit making current(peak value)

              80KA

              额定短路开断电流开断次数

              Breaking operations under rated short circuit breaking current

              30 times

              额定短时耐受电流

              Rated short time withstand current

              31.5kA

              额定峰值耐受电流

              Rated withstand current(peak value)

              80kA

              额定短路持续时间

              Rated duration of short circuit

              4s

              机械寿命

              Mechanical life

              20000 times

              触头自闭力

              Closing force due to bellows and atmosphere

              120±50N

              额定开距下触头反力

              Force required to hold contacts opening at full stroke

              190±50N

              额定触头压力下限时的回路电阻

              Circuit resistance at minimum contacts force

              20μΩ

              贮存期

              Storage life

              20 years

              触头允许磨损厚度

              Limiting abrasion of contacts

              3mm

              配用的真空断路器的机械参数 Mechanical requirements of vacuum circuit breaker

              Items

              Value

              触头开距

              Clearance between opening contacts

              11±1mm

              平均分闸速度(触头闭合位置~75%开距)

              Average opening speed(Contacts closing position~75% contacts opening distance)

              1.1±0.2 m/s

              平均合闸速度(30%开距~触头闭合位置)

              Average closing speed(30% contacts opening distance~contacts closing position)

              0.6±0.2 m/s

              额定触头压力

              Rated contacts pressure

              3150±200N

              触头合闸弹跳时间

              Contacts bouncing duration at closing operation

              ≤2ms

              触头分闸反弹幅值

              Contacts re-bouncing clearance at opening operation

              ≤2mm

              三相同期性

              Synchronism of three phases

              ≤1ms


              亚博王者荣耀竞猜
            1. <video id="wzigo"></video>

                    1. <u id="wzigo"></u>
                        <tt id="wzigo"></tt>