1. Air temperature: -15℃~+40℃
2. Altitude: <1000m
3. Earthquake intensity: <8 degrees
4. Places without obvious pollution such as corrosive or flammable gases
This series of products are used in ring network power supply or radiation type power supply system with rated voltage of 12KV and rated current of 630A and below, especially suitable for installation in pre-installed substations as the control and protection of power systems.
The FLN36-12D type sulfur hexafluoride load switch or FLRN36-12D type load switch-fuse combination electrical appliance with built-in insulating shell has the advantages of small size, light weight, easy operation, light operation force, reliable interlocking, maintenance-free, etc. The characteristic is that it is a high-voltage ring network cabinet required for urban power grid transformation and construction.
| SF6 Ring network cabinet parameter table | |||||||
| No. | Item | Unit | Parameter | ||||
| 1 | Rated Voltage | kV | 1112 | 24 | 33 | 40.5 | |
| 2 | Rated Current | 630/1250 | |||||
| 3 | Rated Frequency | HZ | 50/60 | ||||
| 4 | 1min Power frequency withstand voltage | Phase to phase,phase to earth | KV | 42 | 55 | 80 | 95 |
| Fracture | 46 | 65 | 95 | 110 | |||
| 5 | Lightning impulse withstand voltage | Phase to phase,phase to earth | KV | 75 | 125/150 | 170 | 95 |
| Fracture | 85 | 150/160 | 185 | 215 | |||
| 6 | Short time withstand current | Main circuit | kA | 25/2s | |||
| Earthing circuit | 25/2s | ||||||
| 7 | Rated withstand current(peak) | kA | 63 | 50 | |||
| 8 | Rated transferring current | A | 1300-1700 | ||||
| 9 | Rated load circuirmaking current | A | 630 | ||||
| 10 | Rated cable(line)charging breaking current | A | Oct-50 | ||||
| 11 | Mo load transformer breaking current | A | 20 | ||||
| 12 | Cable charge breaking current in earthing fault | A | 100 | 80 | |||
| 13 | Rated short circuitbreaking current(peak) | kA | 20 | ||||
| 14 | Rated short circuit making current(peak) | kA | 63 | 50 | |||
| 15 | Protection Level | IP3X | |||||
| 16 | Load break switch life | times | 5000 | ||||
| 17 | Earthing switch life | times | 5000 | ||||
