The product meets the requirements of national and industry standards GB/T1904 and JB/T10217 "Combination Transformers". The box structure can be divided into a herringbone or a herringbone shape. The high-voltage interval includes high-voltage terminals, load switches, no-load tap changers, plug-in fuses, pressure relief valves, oil temperature gauges, oil level gauges, and oil drain valves. The low-voltage compartment includes low-voltage terminals and low-voltage cabinets. The transformer windings, iron cores, high-voltage load switches, and protective fuses are all located in the oil storage tank, which can meet various configuration requirements such as user metering, reactive power compensation, and low-voltage shunting. It can produce products with voltage levels of 35kV and below, and capacities of 2500kVA and below. Suitable for public distribution networks, ring networks, or terminal power supply in three-phase AC systems, residential communities, factories, mines, large construction sites, high-rise buildings, airports, docks, and temporary facilities.