An electrical substation is a facility that transforms voltage from high to low or vice versa, making electricity suitable for distribution. It connects different parts of the electrical grid, ensuring that power generated from sources like power plants reaches homes and businesses efficiently. Substations contain various equipment, including transformers, circuit breakers, and switches. These facilities play a crucial role in maintaining the reliability of the electrical supply. By managing the flow of electricity, substations help prevent outages and ensure that the demand for power is met. They are strategically located to optimize the distribution network and enhance overall system performance.