ZW8 High-voltage Vacuum Circuit Breaker-ZW8 High-voltage Vacuum Circuit Breaker-Vacuum Circuit Breaker-Product-BAODING JIKAI POWER EQUIPMENT CO., LTD.

BAODING JIKAI POWER EQUIPMENT CO., LTD.

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  • ZW8 High-voltage Vacuum Circuit Breaker

    ZW8 High-voltage Vacuum Circuit Breaker

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    Product Overview:
    ZW8-12 Outdoor high-voltage vacuum circuit breaker is outdoor distribution equipment with 12kV rated voltage and 50HZ three phase alternating current It is applied to lead current, over current and short circuit current during the breaking-closing electric system It is suit for protecting and controlling in the transformer substation, industrial and mining establishments' distribution system or other rural power grids.


    Main Feature:

    1.Using the silicone rubber post can reduce the switch's weight, make nice appearance and that isn't easy to fall to pieces
    2.Using the technelogy, the vacuum arcing chamber becomes smaller, environment resistance and no maintenance
    3.As the insulating medium in the product is air, that can avoid the risk of oil and air leakage
    4.Can choose to assemble the spring operating mechanism or permanent magnet mechanism
    5.Can compose the recloser with coincidence controller, and also can compose the sectional~zer with segment controller.

    Main Technical Parameter:
    No.
    Parameter name
    Unit
    Date
    1
    Rated voltage
    kV
    12
    2
    Rated current
    A
    630、1250
    3
    Rated short-circuit breaking current
    kA
    20、50
    4
    Rated operating cycle
     
    Breaking-0.3s-breaking-closing 180S-breaking-closing
    5
    Number of rated short circuit breaking current
    30
    6
    Rated short circuit making current (peak value)
    kA
    50
    7
    Rated peak withstand current
    kA
    50
    8
    1min Power frequency withstand current(1min)
    Inter phase/Over the ground
    kV
    42
    Fracture
    kV
    48
    9
    Lighting impulse withstand voltage(peak value)
    kV
    75/85
    10
    Rated short-time withstand current
    kA
    20
    11
    Rated short-circuit continuing time
    S
    4
    12
    Breaking time
    ms
    15-50
    13
    Closing time
    ms
    25-50
    14
    Total breaking time
    ms
    <=100
    15
    Mechanical lifetime
    10000
    16
    Rated operating voltage
    V
    Direct current 220、Altermating current 220
    17
    Clearance between open contacts
    mm
    10-12
    18
    Contact connection travel
    mm
    2.5-3.5
    19
    Average breaking speed
    m/s
    1.1-1.5
    20
    Average closing speed
    m/s
    0.5-0.8
    21
    Contact closing speed
    ms
    <=2
    22
    Different synchronism of three phase's closing-breaking
    ms
    <=1
    23
    Each phase galvanic circle reaistance
    μΩ
    <=150
    24
    Moving/fixing contact permitting abrasion thickness
    mm
    3
    25
    Phase spacing
    mm
    175±2
    26
    The distance between conductive part to ground
    mm
    >=160
    27
    Isolating distance break
    mm
    >=200
    28
    knife contact closing-position skew
    mm
    <=2
    29
    Manuat breaking-closing operating Torque
    N.m
    <=150
    30
    Weight
    kg
    150


    Outline and Install Size: