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Which option best describes the domain where 230 kV is commonly applied?
Correct Answer:
Transmission Systems
Explanation:
Moving electric power efficiently over long distances requires high voltage with lower current. 230 kV is a typical high-voltage level used to transmit bulk power from generating sites to substations that feed regional networks. At generation, voltages are stepped up to these transmission levels, then stepped down for distribution to customers at much lower voltages. Distribution systems deliver to homes and businesses at low voltages, and generation-focused equipment centers around stepping voltages up or down for transport, not long-distance grid-wide transmission. Hence, 230 kV is best described as part of transmission systems.

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