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    ZW32 High-voltage Vacuum Circuit Breaker

    ZW32 High-voltage Vacuum Circuit Breaker


    Product Overview:
    ZW32-12 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 frequency Hz 50
    3 Rated current A 630、1250
    4 Rated short-circuit breaking current kA 20、50
    5 Rated peak withstand current kA 50
    6 Rated short circuit making current (peak value) kA 50
    7 Rated short-time withstand current(4S) kA 50
    8 Number of rated short circuit breaking current 30
    9 Power frequency (1min) Inter phase/Over the ground kV 42
    Fracture kV 48
    10 Lighting impulse withstand voltage(peak value) Inter phase/Over the ground kV 75
    Fracture kV 85
    11 Secandary circuit 1min power frequency withstand kV 2
    12 Mechanical lifetime 10000
    13 Clearance between open contacts mm 9±1
    14 Contact over travel mm 1.5-2.5
    15 Breaking speed m/s 1.2±0.2
    16 Closing speed m/s 0.6±0.2
    17 Cpntact closing bounce time ms <=2
    18 Distance to center mm 34.±2
    19 Different sunchroonism of three phase's closing breaking ms <=2
    20 Each phase galvanic circle reaistance μΩ <=80
    21 Closing time ms <60
    22 Breaking time ms <60
    23 Rated power of charging motor w 40
    24 Weight kg 70

    Outline and Install Size: