Lowering of the voltage: The electricity generated at the power plants is extremely high and hazardous for direct supply. It is not at all fit for supply to commercial places, leave apart private places such as homes. In case there is direct supply of electricity from the power houses to homes, all the electric points would burn out. That is why the distribution substation does the work of a controller. It receives the power supply from the power plants and lowers the voltage for low level usage, such as home, shops, etc. The substation lowers the voltage to an extent that it can be used at places of low electricity-usage such as homes and small scale business establishments. Moreover, it is responsible for controlling the supply of electricity in the network under it. The work of a substation is to maintain appropriate levels of electric supply and ensure that there is no problem or issues with the electricity network.
The role of power transformer: It is the distribution system’s work that there is no fault in the flow of electric current falling in its region or area. It ensures that there is seamless and fault free electricity supply and the voltage is under control. In fact, the exact equipment or device which is responsible for the work is the power transformer. To be precise, it is the work of the power transformer to convert the electricity received from the power plants to low voltage levels or high voltage levels and also to stop the falling current. So the power transformer raises or reduces the voltage of the electricity received from the power generation plants to appropriate levels. Moreover, the work of the substation is to ensure fault free power supply to the region falling under it. It regulates and monitors the power supply in its region and rectifies or corrects if there is any issue relating to the malfunctioning or breakdown of the electric flow system anywhere in the entire network.