The ZGS series integrated transformer, also known as an American-style substation transformer, is a range of products developed to meet the needs of rural and urban power grid construction, development, and renovation. It is a transformer that combines the transformer body, switchgear, fuses, tap changers, and low-voltage distribution equipment, capable of meeting various configurations such as electricity metering, reactive power compensation, and low-voltage branching requirements. The ZGS type integrated transformer, as an independent power and distribution unit for AC 50Hz, 6~10kV power grids with a rated capacity of 30~1600kVA, can be used both outdoors and indoors. It is widely applicable in industrial parks, residential communities, commercial centers, road lighting, high-rise buildings, and temporary construction sites, with advantages such as environmental protection, small land occupation, and easy installation.