In a high-speed train railway system, a substation is a facility that converts high-voltage electrical power from the grid into the specific voltage and frequency required for the operation of the trains.
These substations provide the necessary power to electrify the overhead lines or third rails that supply electricity to the trains.
Substations along a high-speed train railway typically perform functions such as voltage conversion, distribution, and monitoring to ensure a steady and reliable power supply for the trains.
They play a crucial role in maintaining the efficiency and performance of the high-speed rail network by delivering the appropriate power levels to support the trains' high speeds and frequent stops.
Substations also help manage power demands across different sections of the railway, adjusting voltage levels as needed to accommodate various train operations and ensuring a smooth flow of electricity to prevent power disruptions.