The Core Role of High-Voltage Power Distribution Systems: The high-voltage power distribution system in a prefabricated substation is like the arterial system in the human body, responsible for the initial distribution and protection of electrical energy. Typical configurations include ring main units or cable branch boxes, employing SF6 insulation or vacuum circuit breaker technology, characterized by small size and high reliability. The system can achieve short-circuit breaking and overload protection at a voltage level of 10kV, with protection levels generally reaching IP34 or higher, adapting to harsh outdoor environments.
Energy Conversion in Transformer Systems: Transformers are the "heart" of prefabricated substations. Currently, dry-type transformers or oil-immersed transformers are the mainstream. Dry-type transformers have the advantages of being maintenance-free and having good fire resistance, with capacities typically ranging from 315-2500kVA; oil-immersed transformers have higher heat dissipation efficiency and are suitable for large-capacity applications. New amorphous alloy transformers can reduce no-load losses by 70% and control operating noise below 55 decibels, achieving green energy saving.
Intelligent Control of Low-Voltage Power Distribution Systems: The low-voltage power distribution system is like the nervous system, responsible for the final distribution of electrical energy. Modern prefabricated substations are generally equipped with intelligent low-voltage switchgear, which has functions such as remote monitoring and power quality analysis. The system adopts a modular design, including incoming line cabinets, compensation cabinets, and outgoing line cabinets, and can realize advanced functions such as reactive power compensation and harmonic control, improving power distribution efficiency to over 95%.