Which system level is most commonly associated with 230 kV voltage?

• A. Distribution
• B. Industrial
• C. Generation
• D. Transmission Systems

Answer: (D)

High-voltage transmission is about moving large amounts of power over long distances efficiently. To minimize losses, power is carried at high voltage and low current, then stepped down near customers. A voltage around 230 kV is a typical transmission-system level used on the grid’s backbone to link generation facilities to substations and onward toward distribution.

Generation plants usually connect to the grid at lower voltages and are stepped up to high voltage by transformers for transmission. Distribution systems operate at much lower voltages that serve local loads. Industrial sites may have higher on-site voltages, but the bulk power that travels long distances on the network is carried at transmission levels, with 230 kV being a common example.