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Home/SF6 Load Break Switch/40.5kV SF6 Load Break Switch/New Design 35kV 40.5kV Indoor Three Work Positions SF6 Load Break Switch For Ring Main Unit Switchgear New Design 35kV 40.5kV Indoor Three Work Positions SF6 Load Break Switch For Ring Main Unit Switchgear
FLN36 -40.5 SF6 load break switch use SF6 gas as arc extinguishing and insulating medium. There are three work stations:opening, closing and grounding in the switch. It has small volume, installing easy-to-use, strong environmental adaptability and other characteristics.
FLN36-40.5 and FLN -40.5D indoor load break switch plus fuse combination, can be used to protect and control the electric equipments for power supply and transformer substations, which is especially suitable for ring net cabinet, cable branch cabinet and distribution switching substation.
Electrical ProductsNormal Ambient Condition of 35kV 40.5kV Indoor 3-Positions SF6 Load Break Switch
1. Altitude: ≤2000M
2. Ambient temperature: -40℃-+40℃
3. Relative humidity: daily average ≤95%, monthly average ≤90%.
4. Earthquake intensity: ≤8 degree
Technical Parameters of 35kV 40.5kV Indoor 3-Positions SF6 Load Break Switch
|
No.
|
Item
|
Unit
|
Data
|
|
1
|
Rated voltage
|
kV
|
40.5
|
|
2
|
Rated frequency
|
Hz
|
50
|
|
3
|
Rated current
|
A
|
630
|
|
4
|
1 min power frequency withstand voltage
|
kV
|
95
|
|
5
|
Lighting impulse withstand voltage
|
kV
|
185
|
|
6
|
Rated short circuit breaking current(peak)
|
kA
|
20
|
|
7
|
Rated activeload and circuit breaking current
|
A
|
630
|
|
8
|
Rated transferring current
|
A
|
630
|
|
9
|
Rated short circuit making current(peak)
|
kA
|
63
|
|
10
|
Rated cable(line)charging breaking current
|
A
|
10
|
|
11
|
Cable charge breaking current in earthing fault
|
A
|
30
|
|
12
|
Rated withstand current(peak)
|
kA
|
63
|
|
13
|
Short time withstand current(2s)
|
kA
|
20
|
|
14
|
Mechanical life
|
times
|
5000
|
Dimensions of 35kV 40.5kV Indoor 3-Positions SF6 Load Break Switch
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