BRM6 series gas insulated compact type metal enclosed switchgear (hereinafter GIS ) is our introducing of foreign advanced technology, adopting modular design, with its fixed and flexible expansion of the perfect unity to suit the end user or network node requirements, at the same time to meet a variety of requirement for distribution station, package substation, cable branch box. It is widely used in 7.2~40.5kV electric power distribution system .Switchgear has characteristic of completely sealed, free maintenance, small size, excellent performance, safety and reliability, long life etc, and it is popular by users. The switchgear meet the requirements of standard IEC62271-200,IEC62271-100 etc.

Modular designation, each module can be in any arbitrary combined and expanded without charging and discharging, which is convenient for the design of the scheme and the design of high voltage measurement. SF6 insulated circuit breaker incomer and outgoing (vacuum or SF6 arc), load break switch incomer and outgoing , bus couple cabinet, metering cabinet, load break switch -fuse combination electric appliance cabinet, and TV cabinet (with or without switch), combination scheme for single unit, two units , three units, four units etc compact combination, to provide a broad application prospect for SF6 insulated ring main unit or multi loop power distribution cabinet.

Cabinet with armored structure, between the bus room and switch room, switch room and cable compartment has metal clapboard, primary protection grade of full insulation structure can reach IP67. Load break switch with three position welding in sealed stainless steel tank filled with SF6 gas , gas tightness is very good, with less gas, which can guarantee 30 years without leakage, and meet the requirements of environmental protection, It is suitable for indoor and outdoor configuration equipped with metal or non metal shell, or put the underground, semi-underground substation using. The operating mechanism adopts corrosion resistant metal, rotating part of the bearing for lubrication design , the products is not affected by the environment from regular maintenance, and convenient connection with the outside world, so that the operation power small, high reliability and long service life. The extended bus is made of a plug - in silicone rubber connector, which is fully insulated and shielded to ensure the reliability of the transmission and is not affected by the surrounding environment. The combined connection and expansion is convenient, which is convenient for the capacity expansion of the user or the substation in the future.

Using prefabricated silicone rubber insulated cable terminal in the front plug to eliminates the load break switch cabinet with small size and narrow space,which bring the inconvenience of the cable installation. Maintenance disassembly, quick recovery, convenient installation; the outer surface of using new semiconductor materials for shielding layer, the outer surface of grounding during running, which is not affected by damp, condensation, dust, pollution, high safety; maintenance free; diversity, novel and beautiful appearance, can be a branch or parallel with anti flood; It can run under 4.5m water at short time.

In order to adapt to the automation of power distribution network and improve the distribution system reliability, the new multi loop distribution cabinet is according to the demands to add electric mechanism, TV and distribution network control terminal unit, with three remote function, It can be achieved on the main components of the running state and fault monitoring, remote meter reading, remote operation, etc..

The cabinets of miniaturization design used three position rotary type load break switch, which is effectively reduce the number of parts and realized mechanical five anti interlocking . Vacuum circuit breaker filled with SF6 gas insulation, the advantages of using a vacuum interrupter and SF6 gas insulated to make the whole structure more compact; The current limiting fuse to miniaturization, high capacity, high breaking capacity, fast fusing, both combination, to make cabinet body more and more small.

Friendly operation interface to ensure the safety of operators and maintenance. The primary line analog single line diagram and analog display ,which can display the internal state of the switch, so that the operation is simple, accurate and safe.

SF6 load break switch - fuse combination of electrical equipment to replace the circuit breaker to protect transformer under 1250kVA is fully feasible, not only for the transformer with a comprehensive and reasonable protection, but also reasonable cost, simple protection. Under the same conditions, the user has the ability to purchase a higher performance free maintenance products. Therefore, the technical characteristics of the SF6 fully insulated ring main unit or multi loop distribution cabinet is very obvious, and the load break switch and fuse combination is an ideal product for protecting the distribution transformer.

1.Ambient temperature:-30℃ ~ +50℃;
2.Ambient humidity: Daily average RH ≤ 90%;
Monthly average RH ≤ 95%
3.Altitude: Not exceed 2500m above sea level；
4.No flammable, explosive, no serious pollution, no chemical corrosion and severe vibration.