Power transmission refers to the process of transferring electrical energy from one location to another, typically from a power plant to homes and businesses. This is achieved through a network of transmission lines, substations, and transformers that help manage voltage levels and ensure efficient delivery of electricity. The main goal of power transmission is to minimize energy loss while maintaining a reliable supply. High-voltage transmission lines are often used to transport electricity over long distances, as they reduce the amount of energy lost as heat. Once the electricity reaches its destination, it is stepped down to lower voltages for safe use in households and industries.