宝博体育平台|最新官网是一家享誉中外的游戏平台,宝博体育平台|最新官网品种齐全玩法多样,宝博体育平台|最新官网也是玩家们非常喜欢的游戏平台,宝博体育平台|最新官网为您24小时服务!

  • <form id="k94mu"><legend id="k94mu"><noscript id="k94mu"></noscript></legend></form><table id="k94mu"><small id="k94mu"><big id="k94mu"></big></small></table>
    1. <sub id="k94mu"></sub>
      <wbr id="k94mu"></wbr>
      <sub id="k94mu"></sub>
    2. 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-12/630-25 (JUC613A)

      TD-12/630-25 (JUC613A) vacuum interrupter for circuit breaker

      TD-12/1250-25 (JUC613)

      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

      630A/1250A

      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

      25KA

      额定短路关合电流(峰值)

      Rated short circuit making current(peak value)

      63KA

      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

      25kA

      额定峰值耐受电流

      Rated withstand current(peak value)

      63kA

      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 lowest rated contacts force

      20μΩ

      贮存期

      Storage life

      20 years

      触头允许磨损厚度

      Limiting abrasion of contacts

      3mm

      Model No.: TD-12/630-25 (JUC613A)

      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

      2000±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




      宝博体育平台|最新官网
    3. <form id="k94mu"><legend id="k94mu"><noscript id="k94mu"></noscript></legend></form><table id="k94mu"><small id="k94mu"><big id="k94mu"></big></small></table>
      1. <sub id="k94mu"></sub>
        <wbr id="k94mu"></wbr>
        <sub id="k94mu"></sub>