Description:
HGW58-12/S630 type outdoor column three-phase linkage isolation switch (hereinafter referred to as isolation switch) adopts three-phase linkage structure.
There are mainly a chassis, an isolating blade, and a passing spring mechanism, and the isolating blade is fixed on the chassis through an insulator. The isolation knife and the tie rod insulator are interlocked, and the opening is realized under the force of the passing spring mechanism.
Use:
The switch is suitable for 12kV high-voltage transmission and distribution lines, used to open and close the three-phase circuit without load and voltage, and has obvious isolation fracture.
|
Serial
|
project
|
unit
|
technical parameter
|
|
1
|
Rated voltage
|
kV
|
12
|
|
2
|
Rated current
|
A
|
630
|
|
3
|
Rated short-time withstand current (4S)
|
kA
|
20
|
|
4
|
Rated peak withstand current (peak)
|
|
40/50
|
|
5
|
1 min power frequency withstand voltage
|
Fracture
|
kA
|
48
|
|
phase to ground、Between phases
|
kV
|
42
|
|
6
|
Lightning impulse withstand voltage (peak)
|
Fracture
|
kV
|
85
|
|
phase to ground、Between phases
|
kV
|
75
|
|
7
|
Loop resistance
|
UΩ
|
≤100
|
|
8
|
Isolation fracture distance
|
Mm
|
≥200
|
|
9
|
Mechanical life
|
Times
|
2000
|
Inside Road & Administration Industry & Trading Garden,Houshan Industry Area,Fuzhou City,Fujian Province
0591-22806687 0591-22806697
0591-22806667
0591-22806687 0591-22806697
0086-13950298099
0591-22806667
Inside Road & Administration Industry & Trading 
Sampras@china-grid.com.cn