What does a power distribution system include?

A power distribution system encompasses a variety of components that work together to deliver electricity from generation sources to end-users. This system typically includes transformers, which are essential for adjusting voltage levels to enable efficient transmission and distribution; feeders, which are the conductors that carry electricity from substations to various distribution points; and substations themselves, which serve to transform electricity from high voltage down to a lower, usable voltage for residential and commercial consumers.

The inclusion of these components in choice C illustrates the multifaceted nature of power distribution. Each element plays a critical role in ensuring that electricity is effectively and safely transported over distances while maintaining the necessary voltage levels required for different applications. Understanding this holistic approach is essential for anyone involved in electrical practice, as it lays the foundation for the safe and reliable distribution of electrical power. Other choices focus on only select components or systems, failing to capture the complete structure of a power distribution system.