Breaking Capacity: | 25ka, 31.5ka, 35ka, 36ka, 40ka |
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Operation: | Manual Type |
Speed: | Normal Type Circuit Breaker |
Arc-extinguishing Medium: | Vacuum |
Installation: | Fixed |
Structure: | ACB |
Customization: |
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Suppliers with verified business licenses
Environmental conditions
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Installation site
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outdoor
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Ambient temperature
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-25ºC~+40ºC
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Max. daily temperature difference
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≤25ºC
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Height above sea level
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2000m(no limit for specified order)
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Air humidity
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Daily average:≤95%;
month average:≤90%; |
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Wind speed
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≤34m/s
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Solar radiation
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≤0.1W/cm2(fine day, noon)
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Earthquake intensity
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horizontal:≤0.3g;vertical:≤0.15g
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Icing thickness
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≤10mm
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Creepage distance
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25mm/kV or 31mm/kV
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Static load on terminal in Y-direction
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1250N
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Static load on terminal in X-direction
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750N
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Static load on terminal in Z-direction
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1000N
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Main Technical data
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No.
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Items
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Unit
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Parameter
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1
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Rated voltage
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kV
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126
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2
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Rated power frequency withstand voltage(1min)
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Phase-to-phase
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kV
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230
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Phase-to-ground
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fracture
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kV
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230+73*
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3
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Rated lightning impulse withstand voltage
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Phase-to-phase
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kV
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550
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Phase-to-ground
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fracture
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kV
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550+103*
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4
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Power frequency withstand voltage(5min)under SF6 zero-gauge pressure
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kV
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95
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5
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Rated frequency
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Hz
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50
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6
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Rated current
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A
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3150
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7
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Rated short circuit breaking current
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kA
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40
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8
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First-pole-to-clear factor
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1.5
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9
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Rated short circuit breaking current
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More than 41%
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(DC component)
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10
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Rated short circuit making current (peak)
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kA
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100
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11
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Rated short time withstand current(rms)
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kA
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40
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12
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Rated peak withstand current
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kA
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100
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13
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Rated short circuit duration
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s
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4
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14
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Rated out-of-phase breaking current
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kA
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3(OP1) ,10(OP2)
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15
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Short range breaking current
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kA
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36;30
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16
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Wrong-phase earthing fault
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kA
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34.8
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breaking current
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17
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Rated line charging switching current
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A
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31.5
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18
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Full capacity breaking time without check and repair
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Times
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20 or rated current breaking times:3000
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19
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Rated operating sequence
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O-0.3s-CO-180s-CO
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20
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Rated SF6 pressure (20ºC gauge)
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MPa
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0.6
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21
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Alarm/Lock pressure(20ºC gauge)
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MPa
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0.55/0.50
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22
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SF6 annual leakage rate
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%/Y
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≯0.5
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23
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Gas moisture content
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Check value
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μL/L
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≯150
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after hand over
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Allowed service
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μL/L
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≯300
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value
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24
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Resistance of the main circuit
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μΩ
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≤35
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25
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Mechanical life
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Time
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6000
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26
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Radio interference level (1.1Ur/)
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μV
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≯500
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27
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Allowed partial discharge intensity(1.2Ur)
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pC
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≤5
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28
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Noise(distance from sound source:horizontality:2m,height:1.5m)
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dB
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90
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