SC6-24 SF6 load break switch, an switchgear with the rated voltage of 12kV/24kV/36kV, adopted with SF6 gas as an arc-extinguishing and insulation medium, including the three contactors for switching-on and switching-off and to ground.
General:
SC6-24 SF6 load break switch, an switchgear with the rated voltage of 12kV/24kV/36kV, adopted with SF6 gas as an arc-extinguishing and insulation medium, including the three contactors for switching-on and switching-off and to ground, and is characteistic in its small volume, its convenient for installation and operation and its the great adaptability with surroundings.
SC6-24 SF6 load break switch and RLS-24D of SF6 load switch plus fuse combination can function to protect and control the electric equipments for power supply and transformer substations especially being suitable for ring net cabinet, cable branch cabinet and distribution switching substation.
SC6-24 SF6 load break switch and RLS-24D load switch plus fuse combination are complied withthe standards of GB3804-1990, IEC60256-1,1997, GB16926, IEC60420 etc..
Service environment:
a) Air temperature
Maximum temperature: +40℃; Minimum temperature:-5℃
b) Humidity
Monthly average humidity 95%; Daily average humidity 90%.
c) Altitude above sea level
Maximum installation altitude: 2500m
d) Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.
e) No frequent violent shake
Note: For short circuit breaking and peak current isbased on Fuseplus combination.
|
No
|
Item
|
Unit
|
Parameter
|
|
1
|
Rated voltage
|
kV
|
24
|
|
2
|
Rated frequency
|
Hz
|
50/60
|
|
3
|
Rated current
|
A
|
630/800
|
|
4
|
wet
1min Power frequency withstand voltage
dry
|
kV
|
50
60
|
|
5
|
Lightning impulse withstand voltage
|
kV
|
125/150
|
|
6
|
Rated short circuit breaking current (peak)
|
kA
|
Acc to CB & Fuse
|
|
7
|
Rated activeload and close circuit breaking current
|
A
|
630
|
|
8
|
Rated transferring current
|
A
|
1200
|
|
9
|
Rated short circuit making current (peak)
|
kA
|
40
|
|
10
|
Rated cable(line) charging breaking current
|
A
|
50 and 10
|
|
11
|
Cable charge breaking current in earthing fault
|
A
|
20
|
|
12
|
Rated withstand current (peak)
|
kA
|
40
|
|
13
|
Short time withstand current (2s)
|
kA
|
25
|
|
14
|
Mechanism life
|
times
|
2000
|
Matters need attention
It is NOT allowed to disassembly the self-sealed valve in front of switch( connecting end of meter).
It is NOT allowed to unload the seal screws on switch at any time.
Ordering Instructions
1. Belowing terms should be marked while ordering:
Model number, product name and quantity.
Model of operating mechanism.
Provide the rated voltage specification if motorization operating is required.
For load break switch + fuse combination, fuse model and specification is required.
Other special requirements.
2. Documents with product from manufacturer:
Certificate of qualification.
Testing report for products.
Packing list.
Other technical documents.
Notice: All technical specification same as SC6. Except the installation sizes.
Technical Service:
ROCKWILL®, China. Provide with best support
Tel: 0086-577-27869969
Email: barry@rockwill.cn
