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SF6 LW16-40.5 2000-31.5 outdoor circuit breaker 40.5KV

LW16-40.5 outdoor SF6 circuit breaker is used for outdoor devices in AC 50Hz three-phase power system, for industrial and mining enterprises, power plants and substation control and protection. The product can be frequently operated, can be used as a contact circuit breaker and suitable for capacitor bank, reactor bank circuit breaker. The internal current transformer can be used for measurement and protection. It can directly replace SW2-35 type low-oil circuit breaker, and the over-current distribution bracket can replace various ty

    Note: When the circuit breaker is in hot standby state, the lightning arrester must be installed on the side of the break city.

    Operating condition

    Temperature :-10℃~ + 40℃

    Relative humidity: the daily average relative humidity is not more than 95%; The average monthly relative humidity does not exceed 90%

    Earthquake intensity: not more than 8.

    Saturated vapor pressure: the daily average pressure does not exceed 2.2kPa, the monthly average pressure does not exceed 1.8Kpa

    Altitude :≤1000m(except for special circumstances)

    The device should be installed in a place without fire, explosion, serious dirt, chemical erosion, and violent vibration.

     

     

     

     

     

    Technical parameter

    Item

    Unit

    Data

    Rated voltage

     KV

     40.5

    Rated power frequency

     Hz

    50/60 

    Rated current

     A

     2000/1250/630

    Rated power frequency withstand voltage (1min) KV

     Isolating

    95

     To ground

    75

    Rated lightning impulse withstand voltage (1min) KV

     Isolating

    185

     To ground

    145

    Rated short-circuit breaking current

    KA 

     31.5/25

    Rated withstand current(peak)

    KA 

     80/63

    Rated short-time withstand current(3s)

    KA 

     31.5/25

    Rated short-circuit making current(peak)

    KA 

     80/63

    Phase to phase spacing

    mm

    745

    Moving contactor travel

    mm

    150

    Moving contactor overtravel

    mm

    25

    Opening time

    ms

    60

    Closing time

    ms

    150

    Trip time

    ms

    40

    Rated out-of-phase breaking current

    KA

    6.3

    Grounding fault breaking capability

    KA

    27.4

    Rated operation sequence

     

    O-0.3s-CO-180s-CO

    Main circuit resistance

    μΩ

    ≤50

    Rated SF6 gas pressure(20℃)

    Mpa

    0.45

    Rated minimum SF6 gas pressure(20℃)

    Mpa

    0.4

    SF6 gas leakage rate(yearly)

    Mpa

    ≤0.5%

    Gas moisture content

    ppm

    ≤150

    Mechanism life

     times

     10000

    Radio interference

     μV

     <500

    Creepage distance

     mm

    1255

    Heating and lighting voltage

     V

     220ACV

    Control system voltage

    V

    220DCV/ACV

    Mass of filled SF6 gas

     Kg

    6

    Mass of equipment

    Kg

    1000

    Dimension  W*D*H

    mm

    1920*700*4090