Secondary switchgear CKFL series


Electrical characteristics
compact, SF6
industrial, circuit breaker
Other characteristics

12 kV, 24 kV, 40.5 kV


CKFL-12/24/40.5kV series SF6 fully insulated ring main unit is mainly composed of three functional units, V unit (circuit breaker module), C unit (load switch module), F unit (switch-fuse combination ); each combination can be arbitrarily expanded on the left or right sides, and arbitrarily arranged according to different design schemes to meet different configuration requirements. The air box is made of imported (high standard) stainless steel plate, using advanced laser cutting and automatic robot welding technology.

CKFL inflatable cabinet is widely used in industrial and civil ring network and terminal power supply, especially suitable for small secondary distribution power station, open and close, industrial and mining enterprises, airports, railways, commercial districts, high-rise buildings, highways, subways, tunnels and other fields.


① Safety, fully insulated and fully sealed structure, the protection level of the inflatable compartment reaches IP67;

② Economical, compact structure, small size, standardized, modular, maintenance-free design;

③ Wide coverage, meeting the requirements of 12kV, 24kV, 40.5kV voltage levels;

④ Excellent performance, using SF6 insulating medium, automatic welding, gas filling and leak detection process, the insulation performance and sealing performance of the product are guaranteed;

⑤ The scheme is flexible, with upper isolation upper grounding and lower isolation lower grounding structure, which meets the standardized design of the State Grid and the technical requirements of the Southern Grid;

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