Power transmission systems are essential for delivering electricity from power plants to homes and businesses. They consist of high-voltage transmission lines, substations, and transformers that work together to ensure efficient energy transfer over long distances. By using high voltage, these systems minimize energy loss during transmission. These systems also include various components like circuit breakers and switchgear to manage and protect the flow of electricity. Additionally, renewable energy sources such as solar and wind power are increasingly integrated into power transmission systems, promoting a more sustainable energy future.