FLN36-12 an indoor high-voltage SF6 load switch, an switchgear with the rated voltageof 12kV, adopted with SF6 gas as an arc-extinguishing and insulation medium, includingthe three contactors for switching-on and switching-off and to-ground, and is characteristicin its small volume, its convenient installation and operation and its the great adaptability with surroundings. FLN36-12 of an indoor high-voltage SF6 load switch and BRFLN36-12D of SF6 load
switch plus fuse combination can function to protect and control the electric equipments for power supply and transformer substations especially being suitable for ring net cabinet,cable branch cabinet and distribution switching substation.
Conditions of Use
1. Altitude: 1000m and below.
2. Relative humidity: the daily average value is not more than 95%; the monthly average value is not more than 90%.
3. The surrounding air shall not be significantly polluted by smoke, dust, corrosive or combustible gas, water vapor or salt spray.
4. No frequent violent vibration.
Structural conditions
1. The load switch and combined electrical appliances are composed of the same insulated body switch body, their own spring operating mechanism, fuse contact seat and fuse action impact tripping system.
2. The upper and lower shells are made of epoxy resin injection, forming an inflatable inner cavity. The common moving contact can rotate and complete the three working states of "combining one, dividing and one grounding" in sequence. On the basic manual spring energy storage operating mechanism Electric closing and opening can be added to realize remote control operation for users to choose.
3. The position indicating device is directly connected with the transmission shaft of the moving contact, indicating the working position of the moving contact is absolutely reliable.
4. There is a safety diaphragm at the rear of the body. When an accident may occur inside the arc extinguishing chamber and the pressure is too high, the overpressure gas can break through the diaphragm and be released, thereby ensuring personal safety.
5. There are reliable mechanical interlocks between the load switch and the grounding switch, and between the grounding switch and the front door.
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