MV Switchgear
Summary
HXGN15-12 is box-type metal-enclosed AC loop switchgear (referred to as "ring cabinet") is a new type of switchgear designed for the needs of urban power grid expansion and upgrading of the already existing infrastructures and. Ring cabinet is a very reliable and robust cabinet, the cabinet is small size and only need a space to occupy. The following are the four main functions this cabinet can perform.
- It is assembled with 8MF material. The modulus hole E = 20mm is installed in the whole frame.
- Isolation switch, vacuum load switch, grounding switch and cabinet door has perfect and reliable mechanical linkage and interlocking devices, which can effectively prevent unauthorized operation and ensure safe use and maintenance.
- It can be operated manually and electronically.
- "Five Prevention" Blocking Function.
Dimension
650（850）mm*900mm*2000（2200）mm
Structural Characteristics
- The frame of the cabinet is made of aluminum zinc plate, which is processed by CNC equipment and laser cutting. The cabinet has no welding spot and is fully assembled. It has the advantages of high precision, high strength, corrosion resistance, light weight and good versatility
- Optional FLN36-12 SF6 load switch and combination of electrical appliances, high reliability, small size, long service life, it realizes maintenance free
- Interlocking device safe and reliable, fully meet the "five defense" requirements
- Pressure relief channel is provided at the back and top of the cabinet to ensure personal safety
- Reliable ground protection system
- Conform to GB3906, IEC298 and other standards
Standards Compliant
The ring network cabinet complies with the relevant provisions of GB3906, IEC60420, and other standards.
Technical Parameter
- Rated voltage: 12kV
- Rated lightning impulse withstand voltage: 75KV between phases and relative ground, 85KV between fractures
- One minute power frequency withstand voltage: phase to phase and relative ground 42KV, fracture between 48KV
- Rated frequency: 50/60Hz
- Rated current: main bus 630A, branch bus 630A
- Rated short-time tolerable current: main circuit 20/3S
- Ground loop 20/2S
- Rated peak withstand current: 50KA
- Transfer current: 1700A
- Protection level: 1P2X
- Mechanical life of load switch: 2000 times
- Grounding switch mechanical life: 2000 times
Application
- Altitude: Not over 1,000m
- Ambient temperature: between -5℃ and 40℃
- Relative humidity: ≤ 90% (15℃)
- Seismic capacity: horizontal acceleration on surface of ground 0.4g, ground vertical acceleration 0.2g
- Safety factor: Safety factor > 2
- Special use environment conditions, when ordering negotiated settlement
