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110kV 126kV High Voltage Circuit Breaker 3150A - 40kA Sf6 Circuit Breaker

Categories High Voltage Circuit Breaker
Brand Name: Tianan Electric
Model Number: LW39-126
Certification: XIHARI
Place of Origin: CHINA
MOQ: 1 unit
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 1000 units / year
Delivery Time: 45 days
Packaging Details: Standard export package
Price: Pending
Rated Voltage: 110/126kV
Rated Current: 3150A 40kA
Frequency: 50/60Hz
Insulation Gas: SF6
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    110kV 126kV High Voltage Circuit Breaker 3150A - 40kA Sf6 Circuit Breaker

    110kV 126kV High Voltage Circuit Breaker 3150A - 40kA Sf6 Circuit Breaker


    Product Description

    LW39-126 type circuit breaker is a high performance new type HV SF6 circuit breaker. Based on sufficient absorbing and digesting advanced technology of foreign SF6 circuit breaker and requirement of national standard, It combining domestic commercial manufacture level and design. This product is used in electric system with 50Hz, 110kV system nominal voltage, which is main electrical equipment controlled and protected by power station and substation.

    Technical Data
    Serial No.NameUnitValue
    1Ambient temperatureºC-50ºC-40ºC
    2Rated voltageKV126
    3Rated power frequency withstand voltage (1min)
    3.1To earthkV230
    3.2Across open contactkV230+73
    4Rated lightning impulse withstand voltage
    4.1To earthkV550
    4.2Across open contactkV550+103
    5Rated frequencyHz50
    6Rated valueA3150
    7First pole to clear factor1.5
    8Rated short-circuit breakering current (Isc)kA40
    9Rated short-circuit making current (peak)kA100/104
    10Rated hsort-time withstand currentkA40
    11Rated peak withstand currentkA100/104
    12Rated duration of short-circuits4
    13Rated out of phase breaking currentkA10
    14Short-line fault breaking currentkA90%Isc,75Isc
    15Rated line charging breaking currentA31.5
    16Rated operating sequenceo-0.3s-CO-180s-CO
    17Resistance of main contactμΩ≤35
    18Rated SF6 gas pressure (20ºC gauge pressure)Mpa0.6 (or SF6+CF4) 50Hz
    19Alarm/ minimum functional pressure (20ºC gauge pressure)Mpa0.55/0.50 50Hz
    20Annual leakage of SF6 gas%≤0.5
    21Gas humidity content (L/L) (20ºC at handover)L/L≤150x10-6
    22Mechanical enduranceTimes10000
    23Radio interference levelmv≤500
    24Creepage distancemm3906
    25Weight of SF6 gas filled for each CBkg8
    26Weight of one set of CBkg1700

    Major Technical parameters of mechanism

    No.NameUnitData
    1Energy-store motorNormal voltage rangV85%--- 110%
    Rated voltageDC220/AC220
    Rated powerW720
    2Storage time (at rated voltage)s≤20
    3Rated voltage/current of opening coilV/ADC110V/4A, DC220V/2A
    AC220V/5A
    4Auxiliary
    Switch
    Rated currentA3(DC220V)/5 (DC110V)
    Number of auxiliary contacts: normally opened/closedPair11/11
    5Trip switchRated currentA3(DC220V)/5 (DC110V)
    Number of auxiliary contacts: normally opened/closedPair2/2
    6Capacity of terminal carry continuous currentA10
    7Voltage of heater and lighting circuitVAC220
    8Mechanical enduranceTimes10000

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