Schneider Electric High-Voltage Switchgear, full name MVnex-12 Air-Insulated Switchgear. It is a 10 kV medium-voltage switchgear produced by Harbin Langsheng Electric Co., Ltd. under authorization from Schneider Electric. It is applied to indoor medium-voltage switchgear for high-voltage/medium-voltage and medium-voltage/medium-voltage substations. It can be widely applied to commercial and civil facilities such as mobile communication, airports, rail transit, hotels, hospitals, office buildings, and is also commonly used in light industry projects. It adopts a new structural design and higher-performance core components, with higher safety standards and electrical performance, better meeting the needs and usage habits of Chinese users in various industries.
650（800/1000）mm*1400（1600）mm*2300mm
- Covers circuit breaker cabinets, contactor cabinets, and other special cabinet types, meeting the needs of different industries.
- Comprehensive and unique design concept, skillfully implements the five prevention interlocks, achieving higher electrical performance and safety standards.
- Unique grounding switch device, a mechanism with powerful integrated functions.
- Integrated HVX solid-insulated pole vacuum circuit breaker, strong environmental adaptability, authoritative quality assurance.
- Features include reliable power supply, long service life, maintenance-free live parts, high electrical durability, easy installation and maintenance, extremely low operational overvoltage, maintaining breaking capacity and insulation strength under atmospheric pressure, and 30 years of maintenance-free operation.
- Fully electric operation scheme.
- Intelligent solution.
- IEC 60298 and IEC 60694 for medium-voltage switchgear and control equipment
- IEC 60529 defining the protection level of the enclosure (IP rating)
- Chinese national standard GB 3906 and power industry standard DL 404
- Rated voltage: 12 kV
- Rated current: 630–4000 A
- Power frequency withstand voltage (50 Hz, 1 min): 42 kV
- Lightning impulse withstand voltage (1.2/50 μs): 75 kV
- Rated short-time withstand current (4 s): 25–31.5–40 kA
- Rated peak withstand current: 63–80–100 kA
- Internal arc level: 31.5 kA/1 s; 40 kA/1 s
- Earthing switch: 31.5 kA/4 s; 40 kA/4 s
- Protection level: Enclosure: IP4X, Compartment: IP2X
- Ambient air temperature: Maximum temperature +40°C, minimum temperature -15°C.
- Humidity conditions: Daily average relative humidity ≤95%, daily average water vapor pressure does not exceed 2.2 kPa; monthly average relative humidity ≤90%, monthly average water vapor pressure does not exceed 1.8 kPa.
- Altitude: 3000 m and below.
- Seismic intensity: Not exceeding 8 degrees.
- The surrounding air should not be significantly polluted by corrosive or flammable gases, water vapor, etc.
- No location with frequent strong vibrations.
