High Power Circuit Breaker
High Power Circuit Breaker
High Power Circuit Breaker
High Power Circuit Breaker
High Power Circuit Breaker

High Power Circuit Breaker

Item:ZW7 High Power Circuit Breaker①Strong arc extinguishing ability②Long electrical life③Small size and light weight④Anti-condensation, maintenance-free⑤Protection and control...
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High Power Circuit Breaker

High Power Circuit Breaker

$0.00
High Power Circuit Breaker
High Power Circuit Breaker
High Power Circuit Breaker
High Power Circuit Breaker
High Power Circuit Breaker

High Power Circuit Breaker

$0.00

    High Power Circuit Breaker

    ZW7-40.5 outdoor High Power Circuit Breaker is an outdoor high-voltage equipment with AC three-phase 50HZ and rated voltage of 40.5kV.

     

    Attaching a spring operator or an electromagnetic actuator can realize functions such as electric opening and closing, manual power storage, and manual opening and closing. The ZW7 High Power Circuit Breaker is mainly used for the control and protection of outdoor 35kV power distribution system, and is also suitable for normal operation and short-circuit protection of urban and rural power grids and industrial enterprise power grids.

    zw7 vacuum circuit breaker



    ZW7 High Power Circuit Breaker:

     

    ◆Installation method: side-mounted, middle-mounted

    ◆Ambient air temperature: upper limit +40C, lower limit -30C; ;

    ◆Altitude: ≤2000m (if the altitude needs to be increased, the rated insulation level should be increased accordingly);

    ◆Wind pressure: no more than 700Pa (equivalent to wind speed of 34m/s);

    ◆Amplitude: earthquake intensity 8 degrees;

    ◆Contamination level: Class I;

    ◆Maximum daily temperature difference: no more than 25C.

     

    Main Technical Parameters

     

    NO.

    High Power Circuit Breaker Parameter

    Unit

    Value

    1

    Rated voltage

    　

    　

    40.5

    2

    Rated insulation level

    Power frequency withstand voltage

    dry

    kV

    95

    wet

    80

    Lightning impulse withstand voltage (peak)

    185

    3

    Rated current

    A

    1250A, 1600A, 2000A

    4

    Rated short-circuit breaking current

    kA

    20, 25, 31.5

    5

    Nominal Operation Sequence

    　

    　

    6

    Rated short-circuit current breaking times

    Second-rate

    Score - 0.3s combined score - 180s combined score

    7

    Rated short-circuit making current (peak value)

    kA

    ≥30

    8

    Rated peak withstand current

    kA

    50, 63, 80

    9

    Rated short-time withstand current

    S

    20, 25, 31.5

    10

    Rated short-circuit continuous current

    m/s

    4

    11

    Average opening speed

    1.5±0.2

    12

    Average closing speed

    　

    0.7±0.2

    13

    Contact closing bounce time

    S

    ≤2

    14

    Three-phase closing (opening) synchronous time difference

    ≤2

    15

    Closing time

    ≤150

    16

    Opening time

    ≤60

    17

    Mechanical life

    times

    10000

    18

    Rated operating voltage and auxiliary circuit rated voltage

    V

    DC220, 110, 24 AC220, 110, 24

    19

    DC resistance of each phase loop (without transformer)

    µΩ

    ≤100

    20

    Allowable wear thickness of static and dynamic contacts

    mm

    3

    21

    weight

    kg

    800

     

     

    Structure And Mounting Dimensions

    ZW7-40.5 Outdoor Vacuum Circuit Breaker

     

     

    Product Real Shot

    zw7ZW7 High Power Circuit Breakerzw7 ZW7 High Power Circuit Breaker

     

     

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