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GCS Low-Voltage Switchgear/Withdrawable Type


  • General
    1. Rating: Rated voltage 12KV , rated current reach to 630A.
    2.Application :switchgear lock mainly applicable in urban power grid construction and renovation project. industrial and mining enterprises.high-rise buildings and communal facilities .For power distribution .controlling and protection on electric equipment as the loop power supply unit or terminal equipment.It also can be installed in preloaded substation
    3.Feature: Use SF6 load switch and load switch-fuse combination as main switch.Equipped with vacuum load switch and spring operating mechanism which can be operated by hand or electric.Switchgear manufacturer earthing switch and insulating switch are equipped with hand operating mechanism. With small volume and high security
    4.Standard: IEC60420


    Type designation



    Working Conditions
    1. Ambient air temperature: -15℃~+40℃. Daily average temperature:≤35℃. 2.Altitude: ≤1000m. 3.Relative humidity : Daily average≤95% ,daily averange of vapour pressure≤2.2kpa Monthly average≤90%,monthly averange of vapour pressure≤1.8kpa. 4.Earthquake intensity: ≤magnitude 8. 5.Applicable in the places without corrosive and flammable gas. Note: Customized products are available.
  • ItemData
    The main circuit of rated voltage(V)AC400, 690
    The auxiliary circuit of rated voltage(V)AC220, 400; DC110, 220
    Rated frequency(Hz)50(60)
    Rated insulation voltage(V)660(1000)
    Rated current(A)Horizontal busbar≤4000
    Vertical bus(MCC)1000
    Busbar rated short time withstand current(KA/1S)50, 80
    Busbar rated peak withstand current(KA/0.1s)105, 176
    Power frequency test
    voltage (V/1Min)
    Main circuit2500
    Auxiliary circuit2000
    Main Busbar3 Phase 4 WiresA, B, C, N
    3 Phase 5 WiresA, B, C, PE, N


    Products construction and characteristic
    Construction feature
    1.C type material adopted for the main frame, frame use the form of Assembling
    structure. Main frame have the installation modular hole E=20mm
    2.The Compartment is divided into functional unit rooms, bus room, cable rooms,
    Each unit is relatively independent . "
    3.T ake the drawer as main body, meanwhile have the draw out type and fixed type,
    can mixed combination, Arbitrary selection.
    4.Cabinet size (refer to sheet 2)



    Height2200
    Width4006008001000
    Depth6008001000

    5.Functional unit
    1)The higher modulus of drawer is 160mm, divide to1/2 unit, 1 unit, 1.5unit, 2 unit,
    3 unit 5 different size series. Unit loop rated voltage below 400A.
    2)The same functional unit of the drawer has good interchangeability .
    3)Each MCC cabinet can install max 11 set drawer with 1 unit, or 22 sets drawer with
    1/2 unit. Drawer with more than 1 unit adopt multi-functional plate .
    4)Drawer incoming and outgoing line adopt the same standardized plug of slice
    structure with different quantity according to current.
    5)The transfer between ½ unit drawer and cable cabinet use ZJ-2 adapter .
    6)The transfer between drawer which is above 1 unit and cable cabinet use
    standardized bar type or tube type ZJ-1 adapter according to different current
    rated.
    7)Drawer panel have the open, close, test, draw out position indicator .
    8)Drawer unit have Mechanical linkage.
    9)Feeder cabinet and motor control cabinet have special cable insulation cabinet.
    The connection between functional unit and cable cabinet adopt adapter .
    Not only improves the reliability of the cable, and greatly facilitates the user
    safety and repair of cable.



    6.Busbar
    In order to improve the bus dynamic thermal stability and improved contact
    surface temperature rise, device use TMY-T2 series of hard copper , Copper plate
    surface will be treated with new advanced oxidation process. The performance
    index is superior to the traditional tin plating process.
    1)Horizontal busbar
    Horizontal busbar is arranged in Busbar compartment at the back of cabinet,
    double busbar for above 2500 A, single layer busbar for current below 2500A.
    Each phase is composed of 4 or 2 pcs busbar ,improve the Short circuit strength
    of bus.
    2)Vertical bus
    "L" shape hard copper tin bus is used for vertical busbar of drawer .
    L type bus specification(mm):
    (Height×thickness)+(button ×Thickness)(50 ×5)+(30× 5)
    Rated current 1000A
    3)Neutral grounding busbar
    Adopt hard copper . Through the level of neutral grounding wire (PEN) or ground
    +neutral line (PE+N).



    Cabinet codeABCDRemark
    GCS-TG1010-410001000900900Communication cabinet
    GCS-TG0810-48001000700900Electric power cabinet
    GCS-TG0808-4800800700700Electric power cabinet
    GCS-TG0608-4600800500700Electric power cabinet


    Cabinet codeABCDEF×G
    GCS-TG1010-21000100090090060400×400
    GCS-TG0810-28001000700900160200×400
    GCS-TG1008-2100080090070060400×400
    GCS-TG0808-2800800700700160200×400


    Cabinet codeABCDEF×G
    GCS-TG1008-1100080090070060400×350
    GCS-TG1006-1100060090050060400×350
    GCS-TG0806-1800600700500160200×350












  • Main single line diagram Sheet 5



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