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FLW-12/24/40.5 series of Pole mounted SF6 Load break switch
Published in2018-08-30
3295 ViewsDetailed description
Product Description
FLW-12/24/40.5 series of Pole mounted SF6 Load break switch is used for rated voltage 12/24/40.5kV, rated current 400A, 630A, 1250A, and 50/60Hz power distribution network, for breaking and closing load current and overload current of power system, it could separate automatically track sections of faulty power distribution line.
The switch csn be used with electronic controller with the latest technology and it could be manual, motor and remote operated. This electronic controller would be installed inside of stainless steel box, suitable for being used in various of climate conditions.
Besides that, wire and wireless modem installed inside control box, it could realize remote/local monitoring and controlling. It's easy and convenient for installation of the switch on pole, and that could reduce construction cost.
Environment condition
- Ambient temperature: max. +50°C min. -40°C
- Altitude: ≤1000m (could also be 2000m, 3500m, 5000m as requested)
- Wind pressure: ≤700Pa(equals to wind speed 34m/s)
- Relative humidity: ≤100%
- Air contamination degree: IV degree
- Earthquake intensity: ≤8 degree
- Not be polluted by corrosive or flammable gas
- No frequent violent vibration or explosive place
| Model | FLW-12 | FLW-24 | FLW-40.5 |
| Rated voltage | 12KV | 24kV | 40.5kV |
| Rated current | 630A | 630A | 630A |
| Rated frequency | 50/60Hz | 50/60Hz | 50/60Hz |
| Short time withstand current | 20kA/1sec | 20kA/1sec | 20kA/1sec |
| Making and Breaking Capacity | |||
| Main Active Load Current | 630A | 630A | 630A |
| Number of Load-break Operations | 400 Times | 400 Times | 400 Times |
| Short-time Making Current (peak) | 50kA | 50kA | 50kA |
| Number of Making Current Operations | 5 Times | 5 Times | 5 Times |
| Cable Charging Current | 25A | 25A | 25A |
| Line Charging Current | 1.5A | 1.5A | 1.5A |
| Closed Loop Circuit Current | 630A | 630A | 630A |
| Transformer Magnetizing Current | 22A | 22A | 22A |
| Power Frequency Withstand Voltage Test | |||
|
Wet Condition-10sec Phase to Phase, Phase to Earth, Across Interrupters |
45kV | 50kV | 70kV |
| Dry Condition-1min Phase to Phase, Phase to Earth | 50kV | 64kV | 95kV |
| Dry Condition - 1 min Across Interrupters | 50kV | 79kV | 110kV |
|
Impulse Withstand Voltage Test (1.2 x 50 μs) |
|||
| Phase to Earth | 85kV | 125kV | 195kV |
| Across Interrupter | 95kV | 145kV | 215kV |
| Other Ratings & Specifications | |||
| Internal Arc Test | 20kA /0.1 sec | 20kA /0.1 sec | 20kA /0.1 sec |
| Arc Extinction Medium | SF 6 Gas | SF 6 Gas | SF 6 Gas |
| Insulation Medium | SF 6 Gas | SF 6 Gas | SF 6 Gas |
| Creepage Distance (Porcelain Bushing) | 380mm | 700mm | 1055mm |
| Creepage Distance (Silicone Rubber Bushing) | 540mm | 700mm | mm |
| IP Level | 65 | 65 | 65 |
| Mechanical Performance | |||
| Closing/Opening Time | <1sec | <1sec | <1sec |
| Mechanical Operations (Guaranteed) | 10000 Times | 10000 Times | 10000 Times |
| Operating Temperature (Manual Type) | -25~+70oC | -25~+70oC | -25~+70oC |
| Gas Pressure | |||
| Nominal Pressure (MPa, at 20°C) | 0.07 | 0.07 | 0.07 |
| Explosion Pressure (MPa) | 0.4~0.6 | 0.4~0.6 | 0.4~0.6 |
| Minimum Gas Pressure (MPa) | 0.05 | 0.05 | 0.05 |
| Gas Leakage Rate (cc/ sec) | ≤0.5% | ≤0.5% | ≤0.5% |
Outline Dimension
| Dimension (mm) | Mounting Size (mm) | Bushing creepage Distance (mm) |
Packing Size (mm) |
Weight (KGS) |
||||
| A | B | C | D | L×W | L×W×H | |||
| 12KV | 225 | 500 | 803 | 1056 | 500×125 (390) | 500×125 (390) | 1100×900×700 | 105 |
| 24KV | 300 | 650 | 953 | 1250 | 500×125 (390) | 500×125 (390) | 1300×1100×700 | 145 |
| 40.5KV | 400 | 850 | 1153 | 1380 | 700×125 (390) | 700×125 (390) | 1400×1200×700 | 165 |
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