In network distribution, what best describes the network of customers fed by several network transformers tied together with a grid of secondary cables?

• A. Transmission system.
• B. Transmission substation.
• C. Network Distribution.
• D. Underground service area.

Answer: (C)

Network distribution is when several transformers feed a network of secondary cables that are interconnected to supply many customers. This setup creates multiple supply paths, so power can still reach loads if one line or transformer is out, providing greater reliability for a dense local area. It differs from the transmission system, which handles long-distance, high-voltage power, and from a transmission substation, which is the facility that steps voltage down from transmission to distribution levels. It isn’t simply an underground service area, which describes how individual customer connections are laid out rather than the overall distribution network topology.