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          The quality of survival, technology and development
          Quality for survival, technology for development
          SCHXGN15-12 type Air Insulated Ring Main Unit
          SCHXGN15-12 type Air Insulated Ring Main Unit
          SCHXGN15-12 type Air Insulated Ring Main Unit

          Description:

          SCHXGN15-12 type Air Insulated Ring Main Unit switchgear (Air Cabinet for short) is a metal-enclosed switchgear which uses FZN25-12 air-insulated vacuum load switch as the main switch. The whole cabinet is air-insulated, compact and expandable. The air cabinet can be combined freely according to different purposes to meet the requirements of end users or network nodes. At the same time, It can meet the needs of various power distribution openers, box substations, cable branch boxes. It’s Widely used in industrial and civil power ring networks and power supply terminals.

          Features:

          u High insulation and good environmental protection.

          u Constant pressure, particularly suitable for high altitude areas. Stronger environmental adaptability than SF6 Gas Ring Main Cabinet without special design.

          u Smaller size than traditional Ring Main Cabinet of the same voltage level. Compact and convenient for on-site assembly.

          u Complete mechanical interlock function, fully meeting interlocking protection requirements.

          u Compact size, easy to install and easy to operate with expandable modular combination. Choosing the best wiring scheme according to customer needs.

          u Side or side expansion depending on the installation location.

          u Configuring electric, remote control and monitoring devices with simulating the different needs of users.

          u Complete and reliable Five-protection system.

          Using environment:

          u Temperature: Min -25℃~Max+40℃;

          u Relative humidity: Daily average ≦95%; Monthly average≦90%;

          u Altitude: ≦3000m;

          u Shock level: Horizontal acceleration 0.4m/s2,Vertical acceleration 0.15m/s2;

          u Installation location: The place with no severe impact, serious pollution and chemical corrosion, no conductive dust and explosion risk.

          When the conditions of use exceed the above range, the user shall negotiate with us to determine the allowable range or take corresponding supplementary technical measures.

           

           

          Technical Parameters:

          Item

          unit

          Load switch

          Composite apparatus

          Circuit breaker

          Rated voltage

          KV

          12

          12

          12

          Rated frequency

          Hz

          50/60

          50/60

          50/60

          Rated current

          A

           

           

           

          Main bus

          A

          630

          630

          630

          Branch bus

          A

          630

          125(Depending on the rated current of the fuser)

          630

          Rated insulation level

          KV

           

           

           

          Power frequency withstand voltage (Phase to phase, Phase to ground)

          KV

          40

          42

          42

          Power frequency withstand voltage(Fracture)

          KV

          48

          48

          48

          Power frequency(Control and auxiliary circuit)

          KV

          2

          2

          2

          Lightning impulse withstand voltage(Phase to phase, Phase to ground)

          KV

          75

          75

          75

          Lightning impulse withstand voltage(Fracture))

          KV

          85

          85

          85

          Rated short-time withstand current(r.m.s)

          KA

           

           

           

          Main circuit

          KA

          20/3s

          -

          25/2s

          Ground loop

          KA

          20/25

          -

          25/2s

          Stable peak withstand current

          KA

          50

          -

          63

          Rated short-circuit closing current(peak)

          KA

          50

          80

          63

          Rated short-circuit breaking current

          KA

          -

          31.5

          25

          Rated take-over current

          A

          -

          1700

          -

           Rated active load breaking current

          A

          630

          -

          -

          Rated closed-loop breaking current

          A

          630

          -

          630

          Rated cable-charging breaking current

          A

          10

          -

          15

          IP grade

           

          IP3X

          IP3X

          IP3X

          Mechanical life

          Time

           

           

           

          Load switch

           

          5000

          5000

          10000

          Grounding switch

           

          3000

          3000

          3000


          Product details
          TG网