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    Your present location:HomeProductsElectrical Elements Series > CVD4-12 High Voltage AC Vacuum Circuit Breaker

  • Name: CVD4-12 High Voltage AC Vacuum Circuit Breaker
  •   CVD4-12 high voltage AC vacuum circuit breaker is high voltage switchgear with three-phase AC frequency of 50Hz, and rated voltage of 12kV, which is widely applied in load switching different properties and places of frequent operation, and provides protection and control for electric equipment in mine, enterprise, power plant and substation. CVD4-12 is nuclear power equipment of Class 1E, satisfying demand of nuclear grade standard.

      Environment conditions:

      a) Ambient temperature: from -10℃ to +40℃;

      b) Ambient humidity: daily average relative humidity ≤95%, monthly average relative humidity ≤90%;daily average saturated steam pressure ≤2.2×10-3MPa, monthly average saturated steam pressure ≤1.8×10-3MPa;

      c) Altitude ≤1000m,for special project ≤4500m

      d) Earthquake intensity: ≤ 8 magnitude

      e) Applied in places without inflammable, explosive, dangerous, or erosive articles or severe vibration

      Technical Parameter:

    额  定  电  压

    kV

    12

    额  定  电  流

    A

    630  1250 1600 2000 2500 3150  4000

    额定短路开断电流

    kA

    25 31.5 40 50

    额定短路关合电流(峰值)

    kA

     63 80 100 150

    额定峰值耐受电流

    kA

    63 80 100 150

    额定短时耐受电流

    kA

    25 31.5 40 50

    额定短时耐受时间

    s

    4

    额  定  频  率

    Hz

    50

    额定绝缘水平

    额定1min工频耐受电压 

    (对地、相间、断口)

    kV

    42、48(断口)

    雷电冲击耐压(开断前峰值)      (对地、相间、断口)

     

    75、85(断口)

     

    雷电冲击耐压(开断后峰值)         (对地、相间、断口)

     

     

    75、85(断口)

     

    额  定  操  作  顺  序

    /

    分—0.3s—合分—180s—合分

    分—180s—合分—180s—合分

    合    闸    时    间

    ms

    ≤75

    分    闸    时    间

    2075

    燃    弧    时    间

    ≤15

    额定短路开断电流开断次数

    30

    机    械    寿    命

    10000、20000、30000

    动、静触头允许磨损累计厚度

    mm

    ≤3

      Technical parameter of operation mechanism

    序号
    名称
    单位
    数值
    1
    额定操作电压
    V
    AC/DC 220、110
    2
    分、合闸操作电流
    A
    1.25/DC220V  2.5/DC110W
    3
    储能电机功率
    W
    200、300
    4
    储能电机额定电压
    V
    AC/DC 220、110
    5
    储能时间
    S

    ≤15