A box-type substation is a compact, prefabricated power distribution unit integrating transformers, switchgear, and control systems within a weatherproof enclosure (typically 10 kV–35 kV). Designed for urban grids, industrial zones, and renewable energy projects, it minimizes footprint while ensuring reliable voltage transformation and circuit protection. Key components include high-voltage cabinets, dry/oil-immersed transformers, and low-voltage distribution units, all housed in corrosion-resistant materials (galvanized steel or reinforced concrete). Features like IP34-rated protection, fire-resistant insulation, and anti-theft designs enhance safety. Compliant with IEC 61641 or GB/T 17467 standards, modern versions incorporate smart sensors for real-time monitoring of load, temperature, and faults. Energy-efficient, vandal-proof, and quick to install, it optimizes grid flexibility and reduces maintenance costs in space-constrained environments.