TDXG-12(L) Indoor AC high voltage SF6 ring main unit

Short Description:


  • Port: tianjing
  • Supply Ability: TENPRO
  • Payment Terms: L/C,D/A,D/P,T/T
  • Product Detail

    Product characteristics

    Small in size

    Convenient installation

    Performance stability

    Maintenance – free

    TDXG-12(L)

    Indoor AC high voltage SF6 ring main unit

    Scope of application

    Ring main units are suitable for three-phase AC 50 Hz, rated voltage 12kV indoor distribution device. And It is widely used in industrial and civil cable ring network and power supply terminal.

    It is especially suitable for receiving and distributing electric energy in small secondary distribution stations, open and close stations, industrial and mining enterprises, urban residential areas, airports, railways, tunnels, high-rise buildings and other power systems.

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    Technical data

    Name

    Unit

    Parameter

    Rated voltage

    KV

    12

    Main busbar rated current

    A

    630

    Rated current

    A

    630

    Rated frequency

    Hz

    50

    Rated short-time withstand current

    KA

    20

    Rated short circuit duration

    S

    4

    Rated peak tolerant current

    KA

    50

    Rated short-circuit closing current

    KA

    50

    Rated active load breaking current

    A

    630

    Rated closed-loop breaking current

    A

    630

    Rated cable charging breaking current

    A

    10

    Earthing switch rated short-time withstand current

    KA

    20

    Earthing switch rated short duration

    S

    4

    Earthing switch rated peak withstand current

    KA

    50

    Rated insulation level

    1min power frequency withstand voltage (effective value)

    KV

     (phase, over the ground) 42; (fracture) 49

    Lightning impulse withstand voltage (peak)

    KV

     (phase, over the ground) 75; (fracture) 85

    Main circuit resistance

    μΩ

    ≤400

    Mechanical life

     

    load switch

    times

    5000

    Earthing switch

    times

    2000

    Auxiliary circuit 1min power frequency withstand voltage

    KV

    2

    SF6 gas rated pressure (20 ℃ gauge pressure)

    Mpa

    0.040±0.005

    Annual leakage rate of SF6 gas

     

    ≤1%

    levels of protection

     

    IP3X


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