36kV Indoor SF6 Gas Load Break Switch/LBSkits
- RLS-36 is an indoor high-voltage SF6 load break switch, an switchgear with the rated voltage of 36kV/40.5kV, 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 its great adaptability with surroundings. RLS-36 of an indoor high-voltage SF6 load switch and RLS-36 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.
RLS-36 of an indoor high-voltage SF6 load switch and RLS-36 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 | 12/17.5 |
| 2 | Rated frequency | Hz | 50/60 |
| 3 | Rated current | A | 630/800 |
| 4 | wet1min Power frequency withstands voltage | 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 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 to withstand current (peak) | kA | 40 |
| 13 | Short time withstand current (2s) | kA | 20 |
| 14 | Mechanism life | times | 2000 |
Matching dimension of SF6 load break switch-fuse combination
Fig 1) SF6 load break switch without upper cubicle
