Core Features and Advantages
Compact Size, Small Footprint
No separate transformer room required; highly integrated structure, occupying only 1/3 to 1/2 the space of a European-style prefabricated substation. It can be directly installed on roadsides, in green belts, or in open areas of residential communities, eliminating the need for a separate distribution room and significantly reducing land costs.
Easy Installation, Short Construction Period
Factory pre-installed and commissioned; on-site installation only requires foundation pouring, high-voltage cable connection, and low-voltage outgoing line layout. It can be put into operation in 1-2 days, suitable for emergency power supply and temporary power distribution scenarios.
Low Cost, High Cost-Effectiveness
Simplified structure, fewer components, and low production and maintenance costs make it suitable for large-scale deployment, providing an economical option for the "last mile" of urban power distribution networks.
Simple Operation and Maintenance, Long Maintenance-Free Period
The oil-immersed American-style prefabricated substation uses a fully sealed oil tank, allowing the transformer oil to be maintenance-free for 10-15 years; the high-voltage fuse has a plug-in design, allowing for quick replacement after a fault, without the need for complex operations by professional personnel.
Limitations:
Small maintenance space: The transformer and switching components are compactly arranged, limiting internal maintenance space. Major faults require complete return to the factory for repair.
Weak expansion capacity: The fixed enclosure space prevents the later addition of large reactive power compensation or outgoing circuits, making it suitable for scenarios with relatively stable loads.
Slightly lower protection level: Compared to European-style prefabricated substations, American-style prefabricated substations have a high-voltage side plug-in protection level of IP44, requiring proper waterproof sealing.
