Technical Characteristics Of SF6 Fully Insulated Ring Network Cabinet Or Multi Circuit Distribution Cabinet

Technical characteristics of SF6 fully insulated ring network cabinet or multi circuit distribution cabinet

(1) Modular design, each unit module can be freely combined and expanded without the need for charging and discharging, making it convenient for scheme combination and high-voltage metering design. It is suitable for a wide range of applications. SF6 fully insulated circuit breaker inlet and outlet cabinets (vacuum or SF6 arc extinguishing), load switch inlet and outlet cabinets, buscouple cabinets, metering cabinets, load switch fuse combination electrical cabinets, and TV cabinets (with or without switches). The combination schemes can be single unit, two unit, three unit The compact combination of four units provides broad application prospects for SF6 fully insulated ring network cabinets or multi circuit distribution cabinets.

(2) The cabinet body adopts an armored structure, and there are metal partitions between the busbar room and the switch room, as well as between the switch room and the cable room. The primary protection level of the fully insulated structure can reach IP67.

(3) The load switch with three positions is welded in the sealed stainless steel shell filled with SF6 gas. It has excellent air tightness, low gas consumption, and can ensure that there is no gas leakage for 30 years. It meets the requirements of environmental protection. It is not only suitable for indoor use, but also for outdoor use with metal or non-metallic shells, or for use in underground or semi underground Electrical substation.

(4) The operating mechanism adopts corrosion-resistant metal, and the bearings of the rotating part are designed with self-lubrication. The product is not affected by the environment, and is exempt from regular maintenance. It is also easy to connect with the outside world, resulting in small operating power, high reliability, and longer service life

(5) The expansion bus adopts plug-in silicone rubber connector, which is fully insulated and shielded to ensure the conductivity reliability and is not affected by the surrounding environment. The combination connection and expansion are convenient for future users or Electrical substation capacity expansion

(6) Prefabricated silicone rubber insulated cable terminals are inserted on the front, eliminating the disadvantages of inconvenient cable installation caused by the small size and narrow space of the load switch cabinet. They can be disassembled, quickly restored, and installed conveniently during maintenance; The outer surface uses a new type of semiconductor material as a shielding layer, which is grounded during operation and is not affected by moisture, condensation, dust, dirt, etc., resulting in higher safety; Maintenance free; The appearance is diverse, novel, and beautiful, and can be branched or connected in parallel; It has flood prevention function and can operate for a short time at 4.5m underwater.

(7) In order to meet the requirements of distribution network automation and improve distribution reliability, the new multi circuit distribution cabinet can be equipped with electric mechanisms, TV, and distribution network control terminal units as needed, with three remote functions. It can achieve remote monitoring of the operation status and faults of the main components, remote meter reading, remote operation, etc.

(8) The cabinet body is designed with miniaturization and uses a three-position rotating load switch, effectively reducing the number of components and achieving mechanical five prevention interlocking. The vacuum circuit breaker is filled with SF6 gas insulation, utilizing the respective advantages of vacuum arc extinguishing and SF6 gas insulation to make the overall structure more compact; Current limiting fuses are also developing towards miniaturization, high capacity, high breaking capacity, and fast melting. The combination of the two makes the cabinet body smaller and smaller.

(9) Friendly operation interface ensures the safety of operators and maintenance personnel. The primary line simulation single line diagram and simulation display can display the internal status of switches, making operation simple, correct, and safe

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http://www.switchgear-china.com/showroom/35kv-rmu-sf6-gas-insulated-ring-main-unit-switchgear.html

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