Vehicle-mounted mobile substation is mainly composed of five modules, including HGIS module of composite electric appliance, main transformer module, substation integrated automation module, medium voltage distribution room module and equipment transportation module. Each module adopts the overall prefabricated structure to realize the modular production of various functional units in the factory, and completes the internal connection and debugging of each module during the prefabrication process. Vehicle mobile substation overall structure design is compact, strong mobility, can be put into use in a short time, and the power supply reliability is high, flexible operation, simple and convenient assembly, each component can be independently run and mobile transportation. Semi-trailer is usually in the state of mobile waiting for transport, can be dispatched after receiving the departure order, to the designated destination within a few hours that can be put into the power grid operation and use, especially to meet the high voltage power grid power supply system in substation technical transformation, equipment maintenance, site temporary power supply, emergency repair and natural disasters under the power supply demand.
