Red Seal Electrician Practice
Power factor and three-phaseQuestion 1040 of 1506

In a three-phase system, what is the line voltage?

  1. The voltage measured between any two line conductors
  2. The voltage across one single winding
  3. The voltage from a line conductor to earth
  4. The voltage across the neutral conductor
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Correct answer: The voltage measured between any two line conductors

Phase voltage is the voltage across one source winding or load element.

Source: Lessons in Electric Circuits II: AC (Kuphaldt), 7.5: Three-phase Y and Delta Configurations

Practice power factor and three-phase

Questions last reviewed: 18 October 2026