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ALPS series CUS3.0 SF6 gas insulated indoor ring main unitALPS series CUS3.0 SF6 gas insulated indoor ring main unit
Rated voltage: 12kV
Power frequency withstand voltage (1min): 42kV between phases and ground, 48kV fracture
Rated current of main busbar: 630A, 1250A
Load switch rated current: 630A
Circuit breaker rated current: 630A, 1250A
Maximum rated current of the fuse: 125A
Rated short-time withstand current (4s): 20kA, 25kA
The CUS3.0SF6 gas-insulated indoor ring network cabinet is made of high-quality aluminum-zinc-clad plate through multiple bending. The panel is made of cold-rolled steel plate, and the surface is electrostatically powder sprayed. The top is equipped with a barometer observation window and drive mechanism cover. Analog circuit diagram and nameplate, below is the cable compartment cover. The gas box is made of 3mm high-quality stainless steel plate, with built-in switch appliances, bus bars and fuse holders, etc., filled with SF6 gas with excellent arc extinguishing and insulation properties, working pressure 0.03MPa (gauge pressure at 20°C), gas box body Using laser welding fully sealed technology, and synchronously vacuuming helium leak detection, the air box protection level is IP67.
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