Metal armor, air insulation; Suitable for medium voltage distribution; Can withstand internal arc; Factory assembly, testing, and indoor installation; Multiple functional units can be combined to achieve various installation schemes; Each compartment is isolated from each other using metal partitions; Modular structure, high space utilization; Door closing operation; Easy maintenance and low workload; Complete mechanical safety locking; The grounding switch can close the rated short-circuit current; Ensure the continuity of services to a large extent; Can be configured with conventional or integrated intelligent control and protection devices; Can be configured with traditional transformers or new sensors; The cabinet width is 600mm, which is smaller and more aesthetically pleasing compared to traditional domestic high-voltage cabinets, fully saving space for users