What is the high-voltage side of a distribution line called?

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Multiple Choice

What is the high-voltage side of a distribution line called?

The high-voltage side is called the primary. In a typical distribution system, power from the substation travels along high-voltage lines that feed transformers. Those lines are the primary distribution feeders. The transformer then steps the voltage down to a lower level on its secondary winding, which supplies the lower-voltage circuits to homes and businesses. Other terms like secondary refer to the low-voltage side after the transformer, while tertiary and subprimary are used in different contexts and aren’t the standard name for the high-voltage distribution feed.

The high-voltage side is called the primary. In a typical distribution system, power from the substation travels along high-voltage lines that feed transformers. Those lines are the primary distribution feeders. The transformer then steps the voltage down to a lower level on its secondary winding, which supplies the lower-voltage circuits to homes and businesses. Other terms like secondary refer to the low-voltage side after the transformer, while tertiary and subprimary are used in different contexts and aren’t the standard name for the high-voltage distribution feed.

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