Pole Mounted Sf6 Load Break Switch

GKFLW-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 and 50/60Hz power distribution network, for load current and overload current of breaking and closing system, it could separate automatically track sections of the faulty power distribution line.
The switch is matched with electronic controller with the latest technology and it could be manual, motor and remote operation modes. This electronic controller would be installed inside the stainless steel box, so it could be used in various of climate conditions.
Besides that, the wire and wireless modem installed inside control box, it could realize remote monitoring and controlling. It's easy and convenient for installation of the switch on pole, and that could reduce the 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
Technical DataModelGKFLW-12GKFLW-24GKFLW-40.5Rated voltage12KV24kV40.5kVRated current630A630A630ARated frequency50/60Hz50/60Hz50/60HzShort time withstand current20kA/1sec20kA/1sec20kA/1secMaking and Breaking CapacityMain Active Load Current630A630A630ANumber of Load-break Operations400 Times400 Times400 TimesShort-time Making Current (peak)50kA50kA50kANumber of Making Current Operations5 Times5 Times5 TimesCable Charging Current25A25A25ALine Charging Current1.5A1.5A1.5AClosed Loop Circuit Current630A630A630ATransformer Magnetizing Current22A22A22APower Frequency Withstand Voltage TestWet Condition-10sec
Phase to Phase, Phase to Earth, Across Interrupters45kV50kV70kVDry Condition-1min Phase to Phase, Phase to Earth50kV64kV95kVDry Condition - 1 min Across Interrupters50kV79kV110kVImpulse Withstand Voltage Test
(1.2 x 50 µs) Phase to Earth 85kV125kV195kVAcross Interrupter 95kV145kV215kVOther Ratings & SpecificationsInternal Arc Test 20kA /0.1 sec20kA /0.1 sec20kA /0.1 secArc Extinction Medium SF 6 GasSF 6 GasSF 6 GasInsulation Medium SF 6 GasSF 6 GasSF 6 GasCreepage Distance (Porcelain Bushing)380mm700mm1055mmCreepage Distance (Silicone Rubber Bushing)540mm700mmmmIP Level 656565Mechanical PerformanceClosing/Opening Time <1sec<1sec<1secMechanical Operations (Guaranteed)10000 Times10000 Times10000 TimesOperating Temperature (Manual Type)-25~+70ºC-25~+70ºC-25~+70ºCGas PressureNominal Pressure (MPa, at 20°C)0.070.070.07Explosion Pressure (MPa)0.4~0.60.4~0.60.4~0.6Minimum Gas Pressure (MPa)0.050.050.05Gas Leakage Rate (cc/ sec)≤0.5%≤0.5%≤0.5%
Outline DimensionDimension (mm)Mounting Size (mm)Bushing creepage Distance (mm)Packing Size
(mm)Weight
(KGS)ABCDLxWLxWxH12KV2255008031056500x125 (390)500x125 (390)1100x900x70010524KV3006509531250500x125 (390)500x125 (390)1300x1100x70014540.5KV40085011531380700x125 (390)700x125 (390)1400x1200x700165