FLW34-12/24 12KV 24KV Outdoor Pole Mounted SF6 Load Switch
Product Overview
FLW34-12/24 type outdoor pole-mounted HV AC SF6 insulation load break switch is suitable to the distribution network with rated voltage 12/24kV, rated current 400/630A, three-phase AC 50/60Hz to open and close the load current and short circuit current in the power system. It can automatically disconnect the distribution line segment in which the fault occurred. Equipped with the advanced electronic controller, the switch can be for manual operation, electric operation and remote operation. The electronic controller is installed in a stainless steel cabinet, so it can be used in all kinds of climatic conditions. The wire and wireless modems can be also installed in the cabinet to realize remote monitoring and control. Simple, convenient and quick pole mounting can lower the installation cost. The product conforms to the standards of IEC60265-1, IEC62271-103 & GB/T3804: 3.6kV~40.5kV AC high voltage load break switch and IEC60694 & GB/T11022: high voltage switch apparatus and control device.
Working Enviroment
1. Altitude: ≤3000m;
2. Ambient temperature: -40℃~+50℃;diurnal temperature rang ≤25℃;
3. Wind speed: ≤35m/s, equivalent to wind pressure of 700Pa;
4. Earthquake intensity: ≤grade 8;
5. Relative humidity: 100%;
6. Ice thickness: ≤10mm
7. Pollution degree: ≤4(GB5582);
8. Applicable occasions: no fire and explosion danger, no chemical corrosion and no frequent severe vibration.
Technical Data
| 1 | Rated voltage | kV | 12/24 | ||
| 2 | Rated frequency | Hz | 50/60 | ||
| 3 | Rated insulation level (charged SF6 gas 0.05MPa/20℃) |
Lightning impulse withstand voltage(peak) |
Phase to phase, phase to earth | kV | 75/125 |
| Across open contacts | 85/145 | ||||
| 1min P.F withstand voltage |
Phase to phase, phase to earth | 42/64 | |||
| Across open contacts | 48/79 | ||||
| Raining withstand voltage test | 34/50 | ||||
| 4 | Insulation level under zero gauge pressure 1min P.F withstand voltage | kV | 30 | ||
| 5 | Rated current | A | 630 | ||
| 6 | Rated load breaking current (at 0.05MPa/20℃) | 630 | |||
| 7 | Breaking current at zero gauge pressure | 630 | |||
| 8 | Rated short-circuit making current | kA | 50 | ||
| 9 | Rated short-time withstand current/duration | kA/s | 20/4 | ||
| 10 | Rated peak withstand current(peak) | kA | 50 | ||
| 11 | Rated cable charging breaking current | A | 25 | ||
| 12 | Rated line charging breaking current | 1.5 | |||
| 13 | Rated loop breaking current | 630 | |||
| 14 | Breaking times of rated load breaking current | times | 100(E3 class) | ||
| 15 | Rated SF6 gas pressure | MPa | 0.05±0.01 | ||
| 16 | Main loop resistance for each phase | μΩ | ≤120 | ||
| 17 | Relative gas leakage rate | yearty | ≤1% | ||
| 18 | SF6 gas moisture content | Delivery ex-factory value | ppm | ≤150 | |
| Switch operating value | ≤300 | ||||
| 19 | Mechanical life | times | 5000(M2 class) | ||
| 20 | Contact gap | mm | 47±2 | ||
| 21 | Contact over-travel | 17±2 | |||
| 22 | Average opening speed | m/s | 1.2±0.2 | ||
| 23 | Average closing speed | 0.6±0.2 | |||
| 24 | Closing time | ms | 25~60 | ||
| 25 | Opening time | 18~45 | |||
| 26 | Rated operating voltage | V | DC220,AC220 | ||
| 27 | Rated power for energy storage motor | W | 40 | ||
| 28 | 1 min P.F withstand voltage for secondary loop | kV | 2 | ||
| 29 | Phase-to-phase spacing | mm | 230±1.5/340±1.5 | ||
| 30 | Net weight | kg | 125/155 | ||
Appearance And Installation Dimensions
