A mobile substation is a substation on wheels, containing a transformer, breakers and buswork mounted on a self-contained semi-trailer, meant to be pulled by a truck. They are designed to be compact for travel on public roads, and are used for temporary backup in times of natural disaster or war. Mobile substations are usually rated much lower than permanent installations, and may be built in several units to meet road travel limitations.
Mobile substations are a perfect solution, whenever utilities and industries need to provide interim grid connections and temporary power supplies.
Applications range from power supply during emergency or planned outages, to events, moving loads, and the integration of distributed or renewable generation.
Mounted on skids, trailers or in containers for rail, road or air transportation, these substations come in the form of ready-to-connect, complete assemblies and are designed for grid code compliance and easy mobility. The solutions are available for voltage levels up to 420 kV and all power ratings, and ensure reliable and high-quality energy supplies.