SF6 Gas Insulated Load Break Switch
Excellent interrupting and insulating abilities of SF6 GAS Switching on/off the load current of process power distribution line, for division and tapping of lines.
• Overview
Operating at a voltage up to 38kV.
Designed to use an innovative puffer principle to extinguish the arc of full-load interruptions quickly & efficiently.
Meets the demand for oil-less and maintenance free operation with SF6 gas, related parts & devices installed inside its hermetically sealed stainless steel tank.
Can be manually and electrically operated.
• Product Highlights
All-in-one design for SCADA system
The automatic type can be configured as a remote controlled switch.
Built-in CT s, Voltage sensor are fitted in switching tank. FRTU is optional.
• Robustness & long life
Stainless steel tank case with more than 3 mm thickness and TIG welding process, double sealing technique with EPDM rubber.
Simple and robust mechanical construction.
Compact operation mechanism module is located inside the sealed tank, and isprotected from every environmental attack & corrosion.
The robust tulip type contacts ensures long contact life.
• Quick close / open, operator-independent mechanism
Operator-independent quick close & open operation.
Manual operation is always available.
• Reliable insulation & interruption capacity
Experienced and mastery arcing chamber design including pure puffer principle makes the arcing time just half a cycle.
Decomposition of SF6 gas by the arc is negligible and the insulation capacity of gas doesn’t decreaseduring all service life.
All insulation and interrupting ratings of the switch are guaranteed at minimum gas pressure(0.05 MPa.G). The insulation on rated voltage is guaranteed at atmospheric gas pressure(0.0 MPa.G).
The heavy duty contacts made of copper-tungsten arc resistance material ensures 5 times making current test & 200 times load current switching test.
• The switch offers the following features;
Maintenance free, High reliability, Easy installation with compact design
Safety devices (low pressure interlocking, pressure relief, locking)