TGNF38-12 Indoor ring main unit isolation switch

Short Description:


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

    Product characteristics

    ·Three-position

    ·Panel operation

    ·Compact miniaturization

    ·Good creepage insulation

    TGNF38-12

    Indoor ring main unit isolation switch

    Outline

    TGNF38-12KV type indoor ring main unit isolation switch is designed and manufactured to meet the needs of the development of fixed high voltage cabinet, ring main unit to compact type and miniaturization. It has a three-position structure, fully insulated bottom plate; and is equipped with coaxial locking and perfect mechanical interlocking mechanism, which is compact. It is the best optional switch for compact box switchgear.

    Type and meaning of switch

    xrd

    Reference Standard

    GB1985-1989 AC high voltage disconnector and grounding switch

    IEC129-84 AC disconnector and grounding switch

     

     

     

     

    Normal use condition

    1. Ambient air temperature: upper limit 40 ℃ lower limit 25 ℃
    2. Altitude: not exceeding 2000m
    3. Relative humidity: the daily average value is not greater than 95%,      and the monthly mean value is not greater than 90%.
    4. Ambient air should be free from corrosive or combustible gases, steam, etc.

    e. No frequent violent vibration

    Main technique

    Serial No.

    Item

    Unit

    Parameter

    1

    rated voltage

    KV

    12

    2

    rated frequency

    Hz

    50

    3

    rated current

    A

    630-1250

    4

    rated thermal stable current (4S)

    KA

    25-31.5

    5

    rated dynamic current

    KA

    63-80

    6

    rated insulation level

    1min power frequency withstand voltage

    KV

     

    Ground and interphase 42; isolated fracture 48

    lightning impulse withstand voltage

     

    Ground and interphase 75; isolated fracture 85

    Main structural characteristics

    ·It adopts the busbar through-wall integral insulating bottom plate (APG process), and the external insulation creepage ratio is up to 24MM/KV, and the insulation performance is good.

    ·The single break point and three-station structure ensure that the isolation switch cannot be grounded when it is closed, and cannot be closed when grounded.

    ·It is equipped with a coaxial hand-operated mechanism and position locating device.

     

     


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