12kv High Voltage indoor Sf6 Gas Insulated switch cabinet Switchgear
General
SM66-Moule type RMU with SF6 load switch as main switch, for whole cabinet is suitable for electric distribution automation and compact also expandable metal close switchgear.It characters in its simple structure, flexible operation, reliable interlocking and convininent installation etc. It also can be assembly with RCB series VCB with permanet magnet mechanism.
Service environment
a) Air temperature: Maximum temperature: +40ºC; Minimum temperature:-35ºC
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.
Technical parameters
General
SM66-Moule type RMU with SF6 load switch as main switch, for whole cabinet is suitable for electric distribution automation and compact also expandable metal close switchgear.It characters in its simple structure, flexible operation, reliable interlocking and convininent installation etc. It also can be assembly with RCB series VCB with permanet magnet mechanism.
Service environment
a) Air temperature: Maximum temperature: +40ºC; Minimum temperature:-35ºC
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.
Technical parameters
| No | Item | Unit | Parameter | ||||
| 1 | Rated voltage | kV | 12 | 24 | 36 | ||
| 2 | Rated current | A | 630/800 | ||||
| 3 | Rated frequency | Hz | 50/60 | ||||
| 4 | 1min Power frequency withstand voltage | wet | kV | 38 | 50 | 70 | |
| dry | kV | 48 | 60 | 80 | |||
| 5 | Lightning impulse withstand voltage Common value | kV | 75 | 125/150 | 125 | ||
| 6 | Rated transfer current | A | 1700 | 1200 | 800 | ||
| 7 | Rated active load and close circuit breaking current | A | 63 | 50 | 50/40 | ||
| 8 | Rated cable charge breaking current | A | 50 and 10 | ||||
| 9 | Rated short circuit breaking current | kA | 80 | 63 | 50/40 | ||
| 10 | Rated short circuit making current (peak) | kA | 63 | 50 | 63 | 50 | |
| 11 | Short time (2s) withstand current, load switch/earth | kA | 25/20 | 20/20 | 25/20 | 20/20 | |
| 12 | Rated withstand current (peak) | kA | 80 | 63 | 50/40 | ||
| 13 | Mechanism life | Times | 5000 | 2000 | 2000 | ||
| Remarks: Rated current of combination of switch and fuse decided by the fuse current. | |||||||