Power distribution substation looks like a house with a complete driveway, a mown lawn, a front walk and shrubs are in the front yard. A warning notice is displayed on the ‘front door’.
Power distribution substation is used to transfer power from transmission systems to distribution systems of an area. It is not economical to connect electricity to consumers directly to main transmission networks, unless large quantity of power is used. Therefore, distribution stations decreased voltage to levels which are suitable for local distribution.
Distribution voltages are often of medium voltage from 2.4 kV and 33kV as per the practices of local utility and size of the region to be served. The feeders usually run underground in some circumstances or overhead along the streets and power distribution transformers near or at the premises of the customers. Besides transforming voltage, the distribution substations isolate faults in distribution or transmission systems. They are typically sections of voltage distribution.