Rockwill Electric Group
12kV SF6 load break switch
12kV/17.5kV Indoor SF6 Gas Load Break Switch/LBSkits manufactured by Rockwill in China. It adopts SF6 gas as an arc-extinguishing and insulation medium. ...

Detailed description

  • Description
  • Technical data of RLS-12/17.5 Type Indoor SF6 load break switch
  • Outline dimension & installation sizes of indoor sf6 gas load break switch

12kV/17.5kV Indoor SF6 Gas Load Break Switch/LBSkits

-Rockwill Brand: RLS-12/17.5 type LBSkits load break switch is an indoor high-voltage SF6 load break switch, an switchgear with the rated voltage of 12kV/17.5kV, 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 characteristic in its small volume, its convenient installation and operation and itsthe great adaptability with surroundings.
RLS-RLS-12/17.5of an indoor high-voltage SF6 load switch and RLS-12/17.5D of SF6 load switch plus fuse combination canfunctionto protect and controlthe electric equipments for power supply and transformer substations especially being suitable for ring net cabinet, cable branch cabinet and distribution switching substation.
RLS-12/17.5of an indoor high-voltage SF6 load switch and RLS-12D load switch plus fuse combination are complied withthe standards of GB3804-1990, IEC60256-1,1997, GB16926, IEC60420 etc..

 

Service environment:
a) Airtemperature
Maximumtemperature: +40℃; Minimumtemperature:-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) Nofrequent violent shake

Note: For short circuit breaking and peak current isbased on Fuseplus combination.

No
Item
Unit
Parameter
1
Rated voltage
kV
12/17.5
2
Rated frequency
Hz
50/60
3
Rated current
A
630/800
4
wet
1min Power frequency  withstand voltage
dry
kV
38/45
 
48/50
5
Lightning impulse withstand voltage
kV
75/95
6
Rated short circuit breaking current (peak)
kA
Depend on Fuse
7
Rated activeload and close circuit breaking current
A
630
8
Rated transferring current
A
1700
9
Rated short circuit making current (peak)
kA
40
10
Rated cable(line) charging breaking current
A
50 and 10
1 1
Cable charge breaking current in earthing fault
A
20
12
Rated withstand current (peak)
kA
40
13
Short time withstand current (2s)
kA
20
14
Mechanism life
times
2000
Note: For short circuit breaking and peak current is based on Fuse plus combination.

Matching dimension of SF6 load break switch-fuse combination

Fig 1) SF6 load break switch without upper cubicle

Structure of sf6 gas load break switch

 

 

 

 

 

 

 

 

 

 

Outline dimension & installation sizes

Dimension of indoor sf6 gas load break switch

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