YBW series combined substation, commonly known as European box type substation, is a compact complete set of power distribution device combining high-voltage electrical equipment, transformers and low-voltage electrical appliances. It is used in urban high-rise buildings, urban and rural buildings, residential areas, small and medium-sized factories in high-tech development zones, mines, oil fields and temporary construction power, etc. for receiving and distributing power in the power distribution system.

YBW series combined substation has the characteristics of strong completeness, small volume, compact structure, safe and reliable operation, convenient maintenance and mobility. Compared with conventional civil substation, the floor area of combined substation with the same capacity is usually only 1 / 10 ~ 1 / 5 of that of conventional substation, which greatly reduces the design workload and construction volume and reduces the construction cost. In the power distribution series, one thousand ring network power distribution system, one thousand double power supply or radial terminal power distribution system can be used. It is a new complete set of equipment for the construction and re selection of urban and rural substations