Main features
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Installation site
|
outdoor
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Ambient temperature
|
-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
|
750N
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Static load on terminal in Z-direction
|
1000N
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No.
|
Items
|
Unit
|
Parameter
|
||
|
1
|
Rated voltage
|
kV
|
126
|
||
|
2
|
Rated power frequency withstand voltage(1min)
|
Phase-to-phase
Phase-to-ground |
kV
|
230
|
|
|
fracture
|
kV
|
230+73*
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|||
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3
|
Rated lightning impulse withstand voltage
|
Phase-to-phase
Phase-to-ground |
kV
|
550
|
|
|
fracture
|
kV
|
550+103*
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|||
|
4
|
Power frequency withstand voltage(5min)under SF6 zero-gauge pressure
|
kV
|
95
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||
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5
|
Rated frequency
|
Hz
|
50
|
||
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6
|
Rated current
|
A
|
3150
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||
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7
|
Rated short circuit breaking current
|
kA
|
40
|
||
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8
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First-pole-to-clear factor
|
|
1.5
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||
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9
|
Rated short circuit breaking current
(DC component) |
|
More than 41%
|
||
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10
|
Rated short circuit making current (peak)
|
kA
|
100
|
||
|
11
|
Rated short time withstand current(rms)
|
kA
|
40
|
||
|
12
|
Rated peak withstand current
|
kA
|
100
|
||
|
13
|
Rated short circuit duration
|
s
|
4
|
||
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14
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Rated out-of-phase breaking current
|
kA
|
3(OP1) ,10(OP2)
|
||
|
15
|
Short range breaking current
|
kA
|
36;30
|
||
|
16
|
Wrong-phase earthing fault
breaking current |
kA
|
34.8
|
||
|
17
|
Rated line charging switching current
|
A
|
31.5
|
||
|
18
|
Full capacity breaking time without check and repair
|
Times
|
20 or rated current breaking times:3000
|
||
|
19
|
Rated operating sequence
|
|
O-0.3s-CO-180s-CO
|
||
|
20
|
Rated SF6 pressure (20ºC gauge)
|
MPa
|
0.6
|
||
|
21
|
Alarm/Lock pressure(20ºC gauge)
|
MPa
|
0.55/0.50
|
||
|
22
|
SF6 annual leakage rate
|
%/Y
|
≯0.5
|
||
|
23
|
Gas moisture content
|
Check value
after hand over |
μL/L
|
≯150
|
|
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Allowed service
value |
μL/L
|
≯300
|
|||
|
24
|
Resistance of the main circuit
|
μΩ
|
≤35
|
||
|
25
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Mechanical life
|
Time
|
6000
|
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26
|
Radio interference level (1.1Ur/)
|
μV
|
≯500
|
||
|
27
|
Allowed partial discharge intensity(1.2Ur)
|
pC
|
≤5
|
||
|
28
|
Noise(distance from sound source:horizontality:2m,height:1.5m)
|
dB
|
90
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