1. Design concept

• Reliability: Adopt a metal armored structure with perfect mechanical and electrical interlocks to meet the requirements of "Five Preventions".

• Flexibility: Support multiple primary wiring schemes. The cabinet width ranges from 500mm to 1000mm to meet different space requirements.

• Intelligence: Integrate intelligent functions such as temperature monitoring, arc protection, and remote operation and maintenance, and support cloud platform management.

2. Structural features

• Four - chamber independent structure: The low - voltage chamber, circuit breaker chamber, busbar chamber, and cable chamber are isolated from each other, and the protection level reaches IP4X.

• Modular design: Support multiple functional modules such as circuit breaker cabinets, contactor cabinets, PT cabinets, and metering cabinets.

• Intelligent interlock: Have multiple mechanical and electrical interlocks to prevent misoperation.

3. Core configuration

• Circuit breaker: HVX solid - insulated pole vacuum circuit breaker with a rated current of 630A~4000A.

• Contactor: CVX vacuum contactor, suitable for frequent operation occasions.

• Earthing switch: MGES series, with short - circuit closing capability.

• Protection device: Easergy P3 microcomputer protection, VAMP arc protection, etc.

4. Intelligent functions (Smart MVnex)

• Online monitoring: Real - time monitoring of temperature, partial discharge, and mechanical characteristics.

• Arc protection: Quickly locate and cut off the fault point.

• Remote operation and maintenance: Achieve mobile operation and maintenance and early - warning management through the "Thousand - mile Eye" cloud platform.

• Active operation and maintenance unit: Support asset management, alarm management, protection coordination simulation, etc.