What is a primary line in the context of power distribution?

In the context of power distribution, a primary line refers to a high-voltage line that is instrumental in transporting electricity from substations to various distribution points. These lines typically operate at higher voltages, which enables efficient transmission over long distances with minimal losses. The primary line serves as the backbone of the electrical grid, carrying electricity to areas where it will be further stepped down in voltage by transformers for use in residential, commercial, and industrial settings.

This high-voltage transmission is crucial because it allows for the distribution of power across vast networks, ensuring reliability and stability in the supply of electricity. The electricity is then transformed to lower voltages at distribution substations for safe usage by end consumers. Understanding this function emphasizes the importance of primary lines in the overall infrastructure needed to deliver electrical power efficiently.