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Product Details：
Category：Load Break Switch
Name：Outdoor SF6 Load Break Switch
Model：GKFLW-12/24/40.5
Style：Porcelain bushing-Molded cable outlet
Porcelain bushing-Wiring terminal outlet
Rubber bushing-Molded cable outlet
Rubber bushing-Wiring terminal outlet
Packing：Plastic bag & Wooden case or as Requested
Delivery & Payment Terms:
Shipping time： Usually 30 days after the ordered confirmed
Payment：T/T, L/C, Western Union or Paypal
Trade term：FOB China port, or CIF
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
Technical Data
| Model | GKFLW-12 | GKFLW-24 | GKFLW-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～+70℃ | -25～+70℃ | -25～+70℃ |
| 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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