The DC traction network of urban rail transit requires a safe power supply system and reliable control system. MB DC metal enclosed switchgear is a cabinet type developed based on advanced technology and relying on years of experience and advantages in the field of DC traction in Sechron.The DC switchgear serves as a control and protection device in the power supply system, consisting of incoming cabinets (also known as positive cabinets), feeder cabinets, and negative cabinets.
Advantages
1. High protection level and high resistance to internal combustion arc performance
2.A lightweight and smooth propulsion mechanism handcart equipped with DC fast circuit breakers, opening and closing circuits, and line testing devices, convenient for maintenance and repair
3 isolation switches or transfer switches with safety interlocks are easy to access, and easy to operate and maintain in front of or behind the cabinet
4 integrated control and protection system, facilitating remote control and telemetry from the traction network control center       
Features
System integration: The integration of control and protection systems facilitates remote control and telemetry from the traction network control center;　　New connection technology: New fast connection technology ensures convenient secondary wiring;
Intelligent operation and maintenance system: Full time intelligent monitoring and diagnosis, achieving automation, networking, and intelligent management