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FLW-12/24/40.5 series of Pole mounted SF6 Load break switch

FLW-12/24/40.5 series of Pole mounted SF6 Load break switch

FLW-12/24/40.5 series of Pole mounted SF6 Load break switch

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 closingload current and overload current of power system, it
Published in2018-08-30
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Detailed 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


Technical Data
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

Pole Mounted Sf6 Load Break Switch


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