DESCRIPTION
LRFW-12/24/36 pole-mounted load breaking switch is used to rated voltage 24KV, rated current 400/630A, 50/60 Hz power grid open circuit, load current in closed power system, overload current. This load switch can separate those broken distribution line automatically.
The LRFW series outdoor SF6 load switch is a three-phase AC 50Hz /60Hz outdoor medium-voltage switchgear, which can break off and close the load current and overload current in the power system; The load switch is equipped with intelligent controller to realize the automation of distribution system.
Application voltage levels include 12kV, 24kV and 36kV.
Application standard: IEC62271-200.
1. Lift handle
2. Carrying handle
3. Integrative rubber bushing
4. manual operation handle
5. Contact position indicator
6. Load switch support frame
7. Grounding device
8. Open closed locking device for load switch
9. High gas pressure relief explosion-proof device
10. Electric mechanism device
11. SF6 Gas pressure gauge
12. SF6 Gas filling valve
2. Carrying handle
3. Integrative rubber bushing
4. manual operation handle
5. Contact position indicator
6. Load switch support frame
7. Grounding device
8. Open closed locking device for load switch
9. High gas pressure relief explosion-proof device
10. Electric mechanism device
11. SF6 Gas pressure gauge
12. SF6 Gas filling valve
| Item | Unit | Data | ||
| Rated voltage | kV | 12 | 24 | 36 |
| Rated frequency | Hz | 50/60 | ||
| Rated current | A | 400 / 630 | ||
| Rated short-circuit withstand/breaking current | kA | 12.5 | ||
| Rated short-circuit making current (peak) | kA | 31.5 | ||
| Rated peak withstand current | kA | 31.5 | ||
| Rated short-circuit time | Sec | 1 | ||
| Power Operating Time (Close/Open) | Sec | <2 | ||
| Mechanical Operations | Times | 5000 | ||
| Rated full load operations | Times | 400 | ||
| Power frequency withstand voltage (1 min) | kV | 28/32 | 50/60 | 70/80 |
| Lightning impulse withstand voltage (peak) | kV | 76/85 | 125/145 | 170/190 |
| IP Level | 65 | |||
| Arc Extinction Medium | Times | SF6 Gas | ||
| Insulation Medium | SF6 Gas | |||
| SF6 gas year leak rate | ≤0.5% | |||
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