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    Your present location:HomeProductsHigh-voltage Switchgear > ZF47—126/T3150-40 GIS (Gas insulated metal-enclosed switchgear)

  • Name: ZF47—126/T3150-40 GIS (Gas insulated metal-enclosed switchgear)
  •   GIS is composed by circuit breaker, three-operating mode disconnector and earthing switch, transformers, lightning arrester, busbar, bushing and cable connection, etc. All three poles components are enclosed by metal tank, SF6 gas is used for insulation and arc extinguishing.

      GIS is the most important electrical distribution equipment, as a device for control and protect. It has small volume, simple install, no-external environmental influence, high security and reliability, less maintenance, longer no-overhaul period, etc. More and more urban substations, hydropower stations and large-sized industrial and mining enterprises use it.

      ZF126(L)/T3150-40 has advanced technical parameters, its rated current reach to 3150 A, rated short circuit breaking current reach to 40 kA, rated short circuit making current reach to 100 kA. The CB adopts second generation self-energized extinguishing technology, it can break the rated short circuit for 20 times with no maintains. It is equipped with a excellent spring operating mechanism, so it achieve oil-free and air-free and the mechanism is more reliable and safe. Disconnector-earthing switch is three-operating mode type, thus achieving mechanical interlock of disconnector-earthing switch and prevent the incorrect manipulation.

      It has smoothly passed all type tests for one time at XIHARI with the new GB7674-2008 (mod IEC62271-203). 

      General Technical Data

    额定电压

    126kV

    额定频率

    50Hz

    额定电流

    母线

    2000A、3150A

    馈电回路母线

    1600A、2000A、2500A、3150A

    额定短时耐受电流

    40kA

    额定短路持续时间

    4s

    额定峰值耐受电流(峰值)

      100kA

    额定绝缘水平

    短时工频耐受电压

    极间及地:230kV

    断口间:(230+73*)kV

    雷电冲击耐受电压

    极间及地:550kV

    断口间:(550+103*)kV

    SF6气体年漏气率

    ≤0.5%

    间隔重量

    ≤3T

    最小间隔宽度

    0.8m